St Germans (Cornwall) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 15° Celsius;
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 15° Celsius; -
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 15° Celsius;
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 15° Celsius;
-
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 10° Celsius;
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 10° Celsius; -
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 8° Celsius;
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 8° Celsius;
-
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 5° Celsius;
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 5° Celsius; -
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 6° Celsius;
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 6° Celsius;
-
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 6° Celsius;
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 6° Celsius;
7 day forecast for St Germans
Today (18 September 2025)
| Time |
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 |
30%
|
30%
|
20%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
| Temperature |
16°
|
16°
|
16°
|
17°
|
17°
|
18°
|
18°
|
18°
|
18°
|
18°
|
17°
|
17°
|
17°
|
16°
|
16°
|
16°
|
16°
|
| Feels like temperature (°C) |
15°
|
15°
|
15°
|
15°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
15°
|
15°
|
15°
|
| Wind direction and speed |
SW
10
|
SW
10
|
SW
11
|
SW
12
|
SW
13
|
SSW
13
|
SSW
14
|
SSW
14
|
SSW
14
|
SSW
13
|
SSW
12
|
SSW
11
|
SSW
10
|
SSW
10
|
SSW
9
|
SSW
10
|
SSW
11
|
| Wind gust (mph) |
23
|
24
|
25
|
25
|
26
|
27
|
27
|
27
|
26
|
25
|
24
|
23
|
23
|
23
|
22
|
22
|
22
|
| Visibility |
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
97%
|
96%
|
94%
|
93%
|
90%
|
90%
|
89%
|
88%
|
87%
|
88%
|
90%
|
92%
|
93%
|
93%
|
93%
|
93%
|
93%
|
| UV | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 2 | 1 | 1 | 1 | 1 | - | - | - | - |
Friday (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 | |
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
20%
|
20%
|
20%
|
20%
|
10%
|
20%
|
| Temperature (°C) |
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
15°
|
15°
|
16°
|
16°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
16°
|
16°
|
16°
|
16°
|
16°
|
| Feels like temperature (°C) |
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
| Wind direction and speed (mph) |
SSW
10
|
SSW
10
|
SSW
9
|
S
8
|
S
8
|
S
8
|
S
7
|
S
7
|
S
7
|
S
7
|
S
8
|
S
9
|
S
9
|
S
9
|
SSW
9
|
SSW
9
|
SSW
9
|
SSW
8
|
SSW
8
|
SSW
7
|
S
6
|
S
6
|
S
6
|
S
7
|
| Wind gust (mph) |
21
|
19
|
18
|
18
|
17
|
17
|
15
|
15
|
16
|
16
|
17
|
17
|
17
|
17
|
17
|
15
|
15
|
14
|
13
|
12
|
11
|
11
|
12
|
13
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
93%
|
92%
|
92%
|
92%
|
92%
|
92%
|
92%
|
93%
|
92%
|
91%
|
88%
|
86%
|
86%
|
85%
|
86%
|
86%
|
86%
|
88%
|
91%
|
93%
|
94%
|
95%
|
94%
|
94%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | - | - | - | - |
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 | |
|
|
|
|
 |
|
|
|
|
|
|
 |
|
 |
|
|
|
|
 |
|
|
|
|
| Chance of precipitation |
20%
|
20%
|
30%
|
30%
|
50%
|
50%
|
60%
|
40%
|
40%
|
60%
|
60%
|
50%
|
50%
|
50%
|
30%
|
40%
|
40%
|
40%
|
40%
|
40%
|
50%
|
50%
|
40%
|
40%
|
| Temperature (°C) |
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
15°
|
15°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
15°
|
14°
|
14°
|
13°
|
13°
|
| Feels like temperature (°C) |
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
12°
|
12°
|
11°
|
| Wind direction and speed (mph) |
S
7
|
S
7
|
S
7
|
SSE
7
|
SSE
7
|
S
8
|
S
8
|
S
8
|
SSW
9
|
S
11
|
S
12
|
SW
14
|
SW
15
|
WSW
15
|
WSW
15
|
WSW
15
|
WSW
15
|
WSW
14
|
WSW
13
|
WSW
12
|
WSW
11
|
WSW
11
|
WSW
10
|
W
10
|
| Wind gust (mph) |
14
|
14
|
14
|
15
|
15
|
15
|
19
|
19
|
21
|
25
|
26
|
24
|
24
|
25
|
25
|
28
|
26
|
26
|
24
|
23
|
23
|
21
|
21
|
21
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
| Humidity |
94%
|
94%
|
94%
|
94%
|
94%
|
95%
|
96%
|
95%
|
94%
|
92%
|
92%
|
92%
|
88%
|
84%
|
78%
|
70%
|
69%
|
74%
|
76%
|
79%
|
83%
|
83%
|
84%
|
85%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 3 | 4 | 3 | 3 | 2 | 1 | 1 | 1 | - | - | - | - |
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 | |
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
40%
|
40%
|
40%
|
40%
|
50%
|
60%
|
60%
|
50%
|
50%
|
50%
|
60%
|
60%
|
50%
|
50%
|
50%
|
50%
|
40%
|
40%
|
40%
|
40%
|
30%
|
30%
|
30%
|
30%
|
| Temperature (°C) |
13°
|
12°
|
12°
|
12°
|
12°
|
11°
|
11°
|
11°
|
11°
|
12°
|
13°
|
13°
|
13°
|
13°
|
14°
|
14°
|
14°
|
13°
|
13°
|
11°
|
11°
|
10°
|
10°
|
10°
|
| Feels like temperature (°C) |
11°
|
11°
|
11°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
11°
|
11°
|
11°
|
11°
|
11°
|
12°
|
11°
|
11°
|
10°
|
10°
|
9°
|
9°
|
9°
|
8°
|
| Wind direction and speed (mph) |
W
10
|
W
10
|
W
10
|
W
9
|
W
9
|
WNW
8
|
WNW
8
|
WNW
8
|
NW
7
|
NW
9
|
NNW
10
|
NNW
11
|
NNW
12
|
NNW
12
|
NNW
12
|
NNW
12
|
NW
12
|
NNW
12
|
NNW
10
|
NNW
9
|
NNW
7
|
NNW
7
|
NNW
7
|
NNW
7
|
| Wind gust (mph) |
19
|
19
|
17
|
16
|
17
|
15
|
15
|
15
|
18
|
21
|
22
|
24
|
25
|
25
|
26
|
27
|
26
|
25
|
23
|
16
|
15
|
15
|
16
|
17
|
| 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 |
85%
|
85%
|
85%
|
85%
|
85%
|
86%
|
87%
|
86%
|
85%
|
80%
|
76%
|
74%
|
68%
|
65%
|
60%
|
56%
|
61%
|
61%
|
67%
|
73%
|
78%
|
80%
|
82%
|
83%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 4 | 4 | 3 | 2 | 2 | 1 | 1 | 1 | - | - | - | - |
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 | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
30%
|
30%
|
30%
|
30%
|
30%
|
20%
|
30%
|
30%
|
20%
|
20%
|
20%
|
10%
|
20%
|
20%
|
20%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
| Temperature (°C) |
10°
|
10°
|
10°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
10°
|
12°
|
13°
|
14°
|
14°
|
15°
|
15°
|
15°
|
14°
|
14°
|
12°
|
11°
|
10°
|
10°
|
9°
|
| Feels like temperature (°C) |
8°
|
8°
|
8°
|
8°
|
7°
|
7°
|
7°
|
7°
|
7°
|
8°
|
10°
|
11°
|
11°
|
12°
|
12°
|
12°
|
12°
|
12°
|
11°
|
10°
|
9°
|
9°
|
8°
|
8°
|
| Wind direction and speed (mph) |
NNW
7
|
NNW
7
|
NNW
7
|
N
7
|
N
7
|
N
7
|
N
8
|
N
7
|
N
8
|
N
10
|
NNE
11
|
NNE
12
|
NNE
12
|
NNE
13
|
NNE
13
|
NNE
12
|
NNE
12
|
N
12
|
N
10
|
N
9
|
N
8
|
N
7
|
N
6
|
N
6
|
| Wind gust (mph) |
16
|
15
|
15
|
15
|
15
|
16
|
16
|
15
|
18
|
20
|
22
|
24
|
26
|
27
|
26
|
26
|
25
|
23
|
19
|
18
|
17
|
16
|
14
|
13
|
| Visibility (description) |
E
|
E
|
E
|
E
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
E
|
E
|
E
|
E
|
E
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
82%
|
84%
|
85%
|
85%
|
85%
|
86%
|
86%
|
86%
|
84%
|
79%
|
72%
|
64%
|
56%
|
54%
|
52%
|
52%
|
53%
|
54%
|
58%
|
67%
|
74%
|
75%
|
77%
|
78%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 3 | 4 | 4 | 4 | 4 | 3 | 2 | 1 | 1 | 1 | - | - | - | - |
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 | |
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
9°
|
8°
|
7°
|
7°
|
12°
|
14°
|
14°
|
12°
|
9°
|
| Feels like temperature (°C) |
7°
|
7°
|
6°
|
5°
|
11°
|
12°
|
12°
|
10°
|
8°
|
| Wind direction and speed (mph) |
N
5
|
N
5
|
N
5
|
N
5
|
NNE
8
|
NNE
10
|
N
10
|
N
8
|
N
5
|
| Wind gust (mph) |
11
|
7
|
5
|
7
|
15
|
15
|
14
|
9
|
6
|
| Visibility (description) |
VG
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
80%
|
82%
|
86%
|
89%
|
69%
|
56%
|
59%
|
73%
|
85%
|
| UV | - | - | - | 1 | 3 | 4 | 1 | 1 | - |
Wednesday (24 September 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
<5%
|
| Temperature (°C) |
8°
|
8°
|
7°
|
13°
|
15°
|
15°
|
12°
|
10°
|
| Feels like temperature (°C) |
7°
|
6°
|
6°
|
11°
|
13°
|
14°
|
11°
|
9°
|
| Wind direction and speed (mph) |
N
5
|
N
5
|
N
5
|
NNE
8
|
ENE
9
|
NE
9
|
N
7
|
N
5
|
| Wind gust (mph) |
5
|
5
|
6
|
12
|
13
|
11
|
8
|
5
|
| Visibility (description) |
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
89%
|
91%
|
91%
|
76%
|
63%
|
64%
|
82%
|
91%
|
| UV | - | - | 1 | 2 | 4 | 2 | 1 | - |
Tooltip header
UK video forecast
St Germans weather map
View the weather with our interactive map
Loading map...
WARNING
Flood warnings in force for England
Flood warnings in force for England
South West England weather forecast
Headline:
Often cloudy with patchy rain at times.
Today:
A cloudy and mild start to Thursday with some drizzle in places. Turning drier through the afternoon with some brighter intervals, these most likely in eastern counties. Feeling humid and staying windy. Maximum temperature 20 °C.
Tonight:
Staying largely dry overnight with patchy cloud and few clear spells. Another mild night as winds ease a little by dawn. Minimum temperature 13 °C.
Friday:
A brighter start, though cloud quickly increasing from the west bringing outbreaks of light rain and drizzle. Winds continue to ease, and remaining mild and feeling humid. Maximum temperature 21 °C.
Outlook for Saturday to Monday:
Remaining changeable with showers or longer spells of rain on Saturday. Turning colder 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
-
CAUSES OF CLIMATE CHANGE
Causes of climate change
Read -
MET OFFICE FOR SCHOOLS
Weather warriors DIY activity
Read -
WEATHER
Cloud names and classifications
Read -
WEATHER
What are the different types of rain?
Read -
WEATHER
What is the difference between mist, fog and haze?
Read -
SEASONAL ADVICE
4 tips for staying safe in extreme heat
Read