News
Amber thunderstorm warning issued for southeast England
Thunderstorms will bring heavy showers into the southeast of England overnight tonight and through Saturday as they move north.
Read morePortland Harbour - Castle Cove (Beach) (Dorset) weather
Find a forecast
Here are our top tips to keep you, your friends and family safe at the beach with links to Royal National Lifeboat Institution (RNLI) and Met Office advice.
- Head to a lifeguarded beach; check the RNLI lifeguarded beach tool
- Follow RNLI Float to Live advice if you find yourself struggling in the water
- Know what to do if you get caught in a rip current (RNLI)
- Check the tide times to avoid getting cut off by the tide coming in
- Call 999 and ask for the coastguard in an emergency
- Learn more about staying safe at the beach
Forecast days
-
Maximum daytime temperature: 22° Celsius; Minimum nighttime temperature: 16° Celsius;
Maximum daytime temperature: 22° Celsius; Minimum nighttime temperature: 16° Celsius; -
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 15° Celsius;
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 15° Celsius; -
Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 16° Celsius;
Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 16° Celsius;
-
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 14° Celsius;
-
Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 14° Celsius;
-
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 15° Celsius;
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 15° Celsius;
-
Maximum daytime temperature: 25° Celsius; Minimum nighttime temperature: 15° Celsius;
Maximum daytime temperature: 25° Celsius; Minimum nighttime temperature: 15° Celsius;
Cloudy changing to sunny intervals by late morning.
Beach safety today
Caution: strong winds may affect your paddling
- • paddleboarding not recommended for beginners/intermediate
- • experienced paddlers should use caution
Tide: Next high tide (3.4m) at
Sunrise:
Sunset:
7 day forecast for Portland Harbour - Castle Cove (Beach)
Today (19 July 2025)
| Time |
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols |  |
 |
|
|
|
|
|
|
 |
|
|
|
|
 |
|
|
|
|
|
|
|
 |
|
| Chance of precipitation |
10%
|
20%
|
30%
|
40%
|
40%
|
50%
|
40%
|
30%
|
20%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
20%
|
40%
|
60%
|
60%
|
| Temperature |
17°
|
17°
|
17°
|
17°
|
16°
|
16°
|
17°
|
17°
|
18°
|
19°
|
19°
|
20°
|
20°
|
20°
|
20°
|
20°
|
19°
|
19°
|
18°
|
18°
|
18°
|
17°
|
17°
|
| Feels like temperature (°C) |
17°
|
17°
|
17°
|
17°
|
17°
|
16°
|
17°
|
17°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
17°
|
18°
|
18°
|
17°
|
17°
|
17°
|
17°
|
16°
|
16°
|
| Wind direction and speed |
N
4
|
NNW
4
|
N
4
|
N
4
|
N
4
|
NNW
3
|
NW
3
|
WNW
4
|
W
5
|
W
6
|
WSW
8
|
WSW
10
|
SW
11
|
SW
12
|
SW
13
|
SSW
13
|
SW
11
|
SSW
11
|
SSW
10
|
S
10
|
S
9
|
SSE
9
|
SSE
11
|
| Wind gust (mph) |
7
|
7
|
7
|
7
|
7
|
6
|
8
|
10
|
10
|
11
|
14
|
16
|
20
|
21
|
22
|
21
|
19
|
19
|
18
|
17
|
17
|
19
|
22
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
80%
|
81%
|
84%
|
85%
|
86%
|
87%
|
86%
|
83%
|
78%
|
72%
|
66%
|
62%
|
63%
|
64%
|
65%
|
67%
|
71%
|
73%
|
76%
|
79%
|
80%
|
82%
|
83%
|
| UV | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 4 | 6 | 7 | 8 | 7 | 6 | 4 | 2 | 1 | 1 | 1 | 1 | - | - |
| Wind direction and speed |
4
|
4
|
4
|
4
|
4
|
4
|
3
|
4
|
5
|
7
|
9
|
10
|
11
|
12
|
13
|
13
|
12
|
11
|
10
|
10
|
9
|
10
|
11
|
| Height of waves offshore (m) |
0.0
|
0.0
|
0.0
|
0.0
|
0.0
|
0.0
|
0.0
|
0.0
|
0.0
|
0.0
|
0.0
|
0.0
|
0.0
|
0.0
|
0.1
|
0.1
|
0.1
|
0.1
|
0.1
|
0.1
|
0.1
|
0.1
|
0.3
|
| Period of waves offshore (s) |
8
|
6
|
6
|
9
|
9
|
9
|
4
|
4
|
4
|
4
|
3
|
8
|
2
|
2
|
2
|
2
|
3
|
3
|
3
|
3
|
3
|
3
|
3
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Sunday (20 July 2025)
| Time |
00:00
|
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
 |
 |
|
|
|
|
|
 |
| Chance of precipitation |
70%
|
90%
|
80%
|
40%
|
30%
|
40%
|
40%
|
50%
|
70%
|
| Temperature (°C) |
17°
|
17°
|
16°
|
17°
|
18°
|
19°
|
19°
|
18°
|
17°
|
| Feels like temperature (°C) |
15°
|
15°
|
14°
|
14°
|
15°
|
15°
|
15°
|
15°
|
15°
|
| Wind direction and speed (mph) |
SE
12
|
SE
14
|
SE
18
|
S
17
|
S
16
|
SSW
17
|
S
17
|
S
15
|
SSE
12
|
| Wind gust (mph) |
24
|
32
|
34
|
29
|
30
|
31
|
27
|
22
|
18
|
| Visibility (description) |
VG
|
VG
|
G
|
E
|
E
|
E
|
E
|
E
|
VG
|
| Humidity |
88%
|
90%
|
93%
|
90%
|
75%
|
67%
|
67%
|
74%
|
79%
|
| UV | - | - | - | 1 | 5 | 8 | 4 | 1 | - |
| Wind direction and speed (mph) |
12
|
14
|
18
|
17
|
16
|
17
|
17
|
15
|
12
|
| Height of waves offshore (m) |
0.4
|
0.4
|
0.7
|
0.8
|
0.7
|
0.6
|
0.4
|
0.4
|
0.4
|
| Period of waves offshore (s) |
3
|
4
|
4
|
5
|
6
|
6
|
5
|
5
|
4
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
|
Monday (21 July 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
70%
|
60%
|
50%
|
60%
|
50%
|
40%
|
20%
|
10%
|
| Temperature (°C) |
16°
|
15°
|
16°
|
19°
|
21°
|
21°
|
20°
|
18°
|
| Feels like temperature (°C) |
15°
|
15°
|
15°
|
17°
|
18°
|
17°
|
17°
|
15°
|
| Wind direction and speed (mph) |
SE
9
|
NE
6
|
NNW
7
|
NW
10
|
W
14
|
WSW
17
|
W
17
|
W
14
|
| Wind gust (mph) |
15
|
12
|
16
|
22
|
28
|
30
|
27
|
25
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
E
|
E
|
E
|
VG
|
| Humidity |
86%
|
91%
|
86%
|
68%
|
58%
|
62%
|
66%
|
79%
|
| UV | - | - | 1 | 5 | 7 | 4 | 1 | - |
| Wind direction and speed (mph) |
9
|
6
|
7
|
10
|
14
|
17
|
17
|
14
|
| Height of waves offshore (m) |
0.3
|
0.3
|
0.3
|
0.5
|
0.5
|
0.5
|
0.5
|
0.4
|
| Period of waves offshore (s) |
4
|
4
|
5
|
7
|
6
|
5
|
4
|
5
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
Tuesday (22 July 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
20%
|
10%
|
10%
|
40%
|
50%
|
50%
|
30%
|
20%
|
| Temperature (°C) |
17°
|
17°
|
17°
|
18°
|
19°
|
19°
|
18°
|
17°
|
| Feels like temperature (°C) |
15°
|
15°
|
15°
|
16°
|
17°
|
17°
|
17°
|
16°
|
| Wind direction and speed (mph) |
W
14
|
W
12
|
W
11
|
W
12
|
SW
13
|
SW
13
|
WSW
11
|
WNW
9
|
| Wind gust (mph) |
24
|
21
|
21
|
22
|
22
|
19
|
17
|
13
|
| Visibility (description) |
VG
|
VG
|
VG
|
E
|
E
|
E
|
E
|
VG
|
| Humidity |
85%
|
85%
|
81%
|
71%
|
66%
|
71%
|
75%
|
81%
|
| UV | - | - | 1 | 4 | 5 | 4 | 1 | - |
| Wind direction and speed (mph) |
14
|
12
|
11
|
12
|
13
|
13
|
11
|
9
|
| Height of waves offshore (m) |
0.5
|
0.5
|
0.4
|
0.3
|
0.3
|
0.3
|
0.2
|
0.2
|
| Period of waves offshore (s) |
6
|
5
|
5
|
4
|
3
|
4
|
5
|
5
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
Wednesday (23 July 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
20%
|
20%
|
30%
|
40%
|
30%
|
30%
|
10%
|
10%
|
| Temperature (°C) |
16°
|
15°
|
16°
|
18°
|
20°
|
21°
|
20°
|
17°
|
| Feels like temperature (°C) |
15°
|
14°
|
15°
|
17°
|
18°
|
19°
|
18°
|
16°
|
| Wind direction and speed (mph) |
WNW
7
|
WNW
7
|
WNW
7
|
W
10
|
WSW
11
|
W
12
|
WNW
11
|
WNW
7
|
| Wind gust (mph) |
14
|
12
|
16
|
19
|
20
|
18
|
15
|
10
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
84%
|
88%
|
88%
|
74%
|
65%
|
62%
|
70%
|
84%
|
| UV | - | - | 1 | 5 | 6 | 4 | 1 | - |
| Wind direction and speed (mph) |
7
|
7
|
7
|
10
|
11
|
12
|
11
|
7
|
| Height of waves offshore (m) |
0.2
|
0.2
|
0.2
|
0.2
|
0.1
|
0.3
|
0.3
|
0.2
|
| Period of waves offshore (s) |
5
|
3
|
2
|
2
|
7
|
4
|
2
|
4
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
Thursday (24 July 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
 |
| Chance of precipitation |
10%
|
10%
|
20%
|
20%
|
20%
|
20%
|
<5%
|
<5%
|
| Temperature (°C) |
16°
|
15°
|
16°
|
20°
|
22°
|
23°
|
22°
|
18°
|
| Feels like temperature (°C) |
15°
|
14°
|
16°
|
19°
|
21°
|
22°
|
21°
|
18°
|
| Wind direction and speed (mph) |
WNW
7
|
WNW
5
|
NW
5
|
NW
8
|
W
8
|
W
9
|
W
9
|
WNW
6
|
| Wind gust (mph) |
9
|
9
|
12
|
14
|
15
|
14
|
11
|
10
|
| Visibility (description) |
G
|
G
|
G
|
VG
|
G
|
VG
|
VG
|
VG
|
| Humidity |
92%
|
95%
|
92%
|
73%
|
60%
|
58%
|
63%
|
84%
|
| UV | - | - | 1 | 5 | 8 | 4 | 1 | - |
| Wind direction and speed (mph) |
7
|
– | – | – | – | – | – | – |
| Height of waves offshore (m) | – | – | – | – | – | – | – | – |
| Period of waves offshore (s) | – | – | – | – | – | – | – | – |
| Direction of waves offshore |
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
Friday (25 July 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
10%
|
10%
|
20%
|
20%
|
10%
|
<5%
|
<5%
|
| Temperature (°C) |
16°
|
16°
|
17°
|
21°
|
23°
|
23°
|
22°
|
18°
|
| Feels like temperature (°C) |
16°
|
15°
|
16°
|
21°
|
22°
|
22°
|
21°
|
18°
|
| Wind direction and speed (mph) |
NW
6
|
WNW
5
|
WNW
5
|
WNW
7
|
W
9
|
W
9
|
WNW
10
|
WNW
7
|
| Wind gust (mph) |
8
|
8
|
10
|
15
|
17
|
17
|
15
|
13
|
| Visibility (description) |
G
|
G
|
G
|
VG
|
G
|
VG
|
VG
|
VG
|
| Humidity |
91%
|
93%
|
92%
|
76%
|
65%
|
60%
|
64%
|
82%
|
| UV | - | - | 1 | 5 | 7 | 4 | 1 | - |
| Wind direction and speed (mph) | – | – | – | – | – | – | – | – |
| Height of waves offshore (m) | – | – | – | – | – | – | – | – |
| Period of waves offshore (s) | – | – | – | – | – | – | – | – |
| Direction of waves offshore |
–
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
Tooltip header
Tide times
Saturday 19 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Saturday 19 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Saturday 19 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Saturday 19 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Sunday 20 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Sunday 20 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Sunday 20 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Sunday 20 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Monday 21 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Monday 21 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Monday 21 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Monday 21 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Tuesday 22 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Tuesday 22 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Tuesday 22 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Tuesday 22 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Wednesday 23 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Wednesday 23 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Wednesday 23 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Wednesday 23 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Thursday 24 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Thursday 24 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Thursday 24 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Thursday 24 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Friday 25 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Friday 25 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Friday 25 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Tide times
Friday 25 July
Tide times and heights are from Chesil Cove tidal station which is 2.1 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Portland Harbour - Castle Cove (Beach) weather map
View the weather with our interactive map
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WARNING
Flood alerts in force for England
Flood alerts in force for England
South West England weather forecast
Headline:
Some late sunshine then showers arriving overnight.
This Evening and Tonight:
Some late sunshine for many before skies turn cloudier through the night with sea fog developing along the south coast. Mainly dry but feeling warm and muggy for all. Minimum temperature 13 °C.
Saturday:
A mixture of sunshine and showers, these heaviest and carrying the risk of thunderstorms and hail in the east. Sunny spells further west, before rain arrives in the southwest later. Maximum temperature 23 °C.
Outlook for Sunday to Tuesday:
Further showers are expected on Sunday with heavy, thundery downpours. Drier and brighter from Monday although a few heavy showers are still possible. Feeling warm in sunny spells.
Updated:
UK long range weather forecast
Nearest forecasts
- Portland Harbour - Sandsfoot Castle (Beach) 0.3 miles
- Weymouth - Central (Beach) 1.0 miles
- Weymouth 1.2 miles
- Weymouth and Portland 1.8 miles
- Bennetts Water Garden 2.3 miles
- Fortuneswell 2.8 miles
- Bowleaze Cove (Beach) 3.3 miles
- Portland 3.4 miles
- Church Ope Cove (Beach) 4.3 miles
- Ringstead Bay (Beach) 5.1 miles