Harlech (Beach) (Gwynedd) weather

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.

Forecast days

Light rain changing to overcast by late morning.
Beach safety today
Large, powerful waves and strong wind
  • • only experts should take part in water activities

Tide: Next high tide (4.1m) at

Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution
No pollen data.

6 day forecast for Harlech (Beach)

Tomorrow (19 September 2025)
Time
00:00
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 Overcast Overcast Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Overcast Overcast Overcast Overcast Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain
Chance of precipitation
20%
40%
80%
90%
80%
80%
80%
70%
60%
50%
50%
40%
50%
50%
60%
70%
80%
70%
60%
70%
70%
70%
60%
70%
Temperature
17°
17°
17°
17°
16°
16°
16°
16°
16°
16°
17°
17°
17°
17°
17°
17°
17°
17°
17°
16°
16°
16°
16°
15°
Feels like temperature (°C)
12°
12°
12°
12°
12°
12°
12°
12°
12°
12°
13°
13°
14°
14°
14°
14°
14°
14°
14°
14°
14°
15°
15°
14°
Wind direction and speed
SSW
27
SSW
27
SSW
26
SSW
25
SSW
25
SSW
24
S
24
S
23
S
22
S
21
S
20
S
20
S
19
S
18
S
18
S
18
SSW
17
SSW
15
SSW
14
SSW
13
SSW
12
SSW
10
SSW
9
SW
9
Wind gust (mph)
37
36
36
35
34
33
31
30
29
28
29
29
28
27
26
24
23
21
17
16
15
14
12
11
Visibility
G
G
G
M
M
G
G
VG
VG
VG
VG
VG
VG
VG
VG
G
G
M
VG
G
M
G
G
G
Humidity
91%
91%
90%
91%
92%
91%
92%
92%
91%
89%
88%
87%
88%
87%
86%
88%
88%
89%
91%
91%
92%
93%
92%
92%
UV - - - - - - 1 1 1 1 1 1 2 2 2 2 1 1 1 1 - - - -
Wind direction and speed
27
27
26
25
25
24
24
23
22
21
20
20
19
18
18
18
17
15
14
13
12
10
9
9
Height of waves offshore (m)
1.2
1.2
1.2
1.1
1.1
1.1
1.1
1.1
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0.9
0.9
0.9
0.8
0.8
0.7
0.7
Period of waves offshore (s)
7
7
7
7
7
8
8
8
8
8
8
8
7
7
7
7
7
7
7
7
7
8
9
9
Direction of waves offshore
Saturday (20 September 2025)
Time
00:00
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 Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Light rain Light rain Light rain Light rain Heavy rain Light rain Light rain Heavy shower day Light shower day Light shower night Light shower night Light shower night Light shower night Light shower night
Chance of precipitation
70%
80%
80%
90%
90%
90%
90%
90%
90%
80%
80%
80%
80%
80%
80%
70%
70%
70%
70%
60%
60%
60%
60%
70%
Temperature (°C)
15°
15°
15°
14°
14°
14°
14°
14°
13°
14°
14°
15°
15°
15°
15°
15°
15°
14°
14°
13°
13°
13°
12°
12°
Feels like temperature (°C)
14°
14°
13°
13°
13°
13°
13°
12°
12°
12°
13°
13°
13°
13°
13°
12°
12°
11°
11°
10°
10°
10°
9°
9°
Wind direction and speed (mph)
SW
8
SW
8
NW
8
NNE
9
NNE
8
NE
8
ENE
8
NNE
9
NNE
9
NE
9
NNE
10
NNE
10
N
11
NE
13
ENE
14
N
16
NW
16
NW
16
NW
16
NNW
17
NNW
16
NW
16
NW
16
NW
17
Wind gust (mph)
10
11
12
12
11
12
12
13
12
14
12
13
15
16
17
20
19
18
17
17
18
18
19
20
Visibility (description)
G
M
M
M
M
M
M
M
M
G
G
G
VG
VG
VG
E
E
E
E
E
E
E
E
E
Humidity
92%
91%
90%
89%
88%
89%
90%
89%
88%
88%
87%
87%
85%
84%
83%
84%
83%
81%
82%
83%
82%
80%
78%
79%
UV - - - - - - - 1 1 1 1 1 2 1 1 1 1 1 1 1 - - - -
Wind direction and speed (mph)
8
8
8
8
8
8
9
9
9
9
10
11
12
13
14
15
16
16
16
17
16
16
16
16
Height of waves offshore (m)
0.6
0.6
0.6
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2
Period of waves offshore (s)
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
Direction of waves offshore
Sunday (21 September 2025)
Time
00:00
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 Heavy shower night Light shower night Light shower night Light shower night Light shower night Light shower night Light shower night Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower night Light shower night Light shower night Partly cloudy night Partly cloudy night
Chance of precipitation
70%
70%
70%
70%
70%
70%
70%
70%
70%
70%
70%
70%
70%
70%
70%
70%
60%
60%
50%
50%
50%
50%
50%
40%
Temperature (°C)
11°
11°
11°
11°
10°
10°
10°
10°
10°
10°
11°
11°
12°
12°
12°
12°
12°
12°
12°
11°
10°
10°
10°
9°
Feels like temperature (°C)
8°
8°
8°
8°
7°
7°
7°
7°
7°
8°
8°
9°
9°
9°
9°
9°
10°
9°
9°
8°
7°
8°
7°
7°
Wind direction and speed (mph)
NW
17
NNW
16
NNW
15
N
15
NNW
15
N
15
N
14
N
14
N
13
N
13
N
14
N
15
N
16
N
16
N
16
NNE
16
N
15
N
14
N
14
N
13
NNE
12
NNE
11
NNE
10
NNE
10
Wind gust (mph)
20
19
19
20
19
19
21
24
25
23
24
26
28
28
28
28
26
24
23
23
22
21
19
19
Visibility (description)
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
Humidity
79%
80%
82%
82%
82%
81%
78%
80%
79%
77%
72%
73%
68%
68%
71%
70%
67%
68%
70%
71%
73%
75%
75%
74%
UV - - - - - - - 1 1 1 2 3 3 3 3 2 2 1 1 1 - - - -
Wind direction and speed (mph)
16
16
16
15
15
14
14
14
14
14
14
14
15
16
16
15
15
14
14
13
12
11
10
10
Height of waves offshore (m)
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.1
0.1
0.1
Period of waves offshore (s)
9
9
9
9
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
Direction of waves offshore
Monday (22 September 2025)
Time
00:00
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 Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Clear night Clear night Sunny day Sunny day Sunny day Sunny day Sunny day Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny day Sunny day Sunny day Clear night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
Chance of precipitation
30%
20%
20%
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
10%
20%
20%
20%
20%
20%
Temperature (°C)
9°
9°
9°
9°
8°
8°
8°
8°
8°
10°
11°
12°
13°
13°
14°
14°
14°
13°
12°
11°
10°
9°
9°
9°
Feels like temperature (°C)
7°
7°
7°
7°
6°
6°
6°
6°
6°
8°
9°
10°
10°
11°
11°
11°
11°
10°
10°
8°
8°
8°
8°
8°
Wind direction and speed (mph)
NNE
10
NNE
9
NNE
9
NNE
8
NNE
8
NNE
7
NNE
7
NNE
7
NNE
7
NNE
8
NNE
9
NNE
11
NNE
12
N
13
N
14
N
14
N
14
N
14
N
13
N
10
NNE
8
NNE
6
NE
5
NE
5
Wind gust (mph)
18
17
15
14
14
13
14
15
15
19
21
23
24
24
24
24
23
22
18
16
15
13
11
11
Visibility (description)
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
Humidity
74%
73%
73%
73%
73%
73%
73%
74%
74%
72%
65%
59%
56%
55%
53%
51%
53%
55%
57%
58%
65%
67%
68%
68%
UV - - - - - - - 1 1 1 2 3 4 4 3 2 1 1 1 1 - - - -
Wind direction and speed (mph)
10
9
9
8
8
8
7
7
8
9
9
10
12
13
13
14
14
13
12
10
9
7
5
5
Height of waves offshore (m)
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Period of waves offshore (s)
8
8
8
8
8
8
8
8
8
8
8
10
11
13
13
13
13
13
13
13
13
13
13
13
Direction of waves offshore
Tuesday (23 September 2025)
Time
00:00
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
Chance of precipitation
20%
20%
10%
10%
10%
<5%
<5%
<5%
<5%
Temperature (°C)
9°
9°
8°
8°
12°
14°
14°
12°
9°
Feels like temperature (°C)
8°
7°
7°
6°
11°
12°
12°
10°
7°
Wind direction and speed (mph)
NNE
6
NE
6
NNE
5
NE
5
NNE
7
NNW
9
NNW
10
NNE
9
NE
7
Wind gust (mph)
11
11
10
10
12
12
12
11
9
Visibility (description)
E
E
E
E
VG
VG
VG
VG
VG
Humidity
70%
71%
72%
72%
69%
61%
57%
64%
66%
UV - - - 1 2 3 1 1 -
Wind direction and speed (mph)
6
6
5
5
7
9
10
9
7
Height of waves offshore (m)
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Period of waves offshore (s)
13
13
13
13
13
13
13
12
12
Direction of waves offshore
Wednesday (24 September 2025)
Time
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Cloudy Sunny intervals Partly cloudy night Partly cloudy night
Chance of precipitation
<5%
<5%
10%
10%
10%
<5%
<5%
<5%
Temperature (°C)
8°
8°
7°
13°
15°
15°
13°
11°
Feels like temperature (°C)
6°
6°
5°
11°
13°
13°
11°
9°
Wind direction and speed (mph)
NE
6
ENE
6
ENE
6
ENE
8
E
9
NNW
9
N
9
NE
7
Wind gust (mph)
7
7
7
10
10
10
10
8
Visibility (description)
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
66%
68%
74%
73%
65%
64%
67%
71%
UV - - 1 2 3 1 1 -
Wind direction and speed (mph)
6
 – – – – – – –
Height of waves offshore (m)
0.0
 – – – – – – –
Period of waves offshore (s)
12
 – – – – – – –
Direction of waves offshore
–
–
–
–
–
–
–

Tide times

Friday 19 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 19 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 19 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 19 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 20 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 20 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 20 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 20 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 21 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 21 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 21 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 21 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 22 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 22 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 22 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 22 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 23 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 23 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 23 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 23 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 24 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 24 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 24 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 24 September

Tide times and heights are from Porthmadog tidal station which is 3.7 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 explained
News

Unsettled Weather Ahead

Heavy rain, strong winds, and marked temperature contrasts are expected across the UK over the coming days.

Read more

UK video forecast

Harlech (Beach) weather map

View the weather with our interactive map

Loading map...
Forecast for 00:00, Fri
Updated 22:00 (UTC+1) on Thu 18 Sep 2025

Wales weather forecast

Headline:

Largely dry with sunny spells on Friday.

This Evening and Tonight:

Remaining largely cloudy overnight as a band of rain and drizzle continues to affect much of the north and west. Drier in the east with a few clear spells. Windy in the northwest, but winds easing elsewhere by dawn. Minimum temperature 12 °C.

Friday:

Increasingly cloudy in the west with rain and drizzle pushing north-eastwards, turning heavy at times. Some brighter and drier intervals in the east. Winds continuing to ease. Feeling humid. Maximum temperature 20 °C.

Outlook for Saturday to Monday:

Remaining changeable with showers or longer spells of rain on Saturday. Turning cooler through Sunday as showery rain clears southeast, leaving sunny spells and showers on Monday.

Updated:

UK long range weather forecast

More from the Met Office