Coast and sea
Marine observations - Brittany
- Location 47.55, -8.47
- Altitude 0 m above mean sea level
Tuesday (16 December 2025)
| 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature |
12.2° Celsius
|
12.2° Celsius
|
12.3° Celsius
|
12.4° Celsius
|
12.3° Celsius
|
12.1° Celsius
|
12.0° Celsius
|
12.0° Celsius
|
11.9° Celsius
|
12.0° Celsius
|
12.1° Celsius
|
12.2° Celsius
|
| Wind Direction and speed |
N
10
|
NNW
8
|
NNW
8
|
NW
7
|
NW
4
|
WSW
7
|
WSW
7
|
SW
11
|
SSW
11
|
SSW
13
|
SSW
15
|
SSW
17
|
| Humidity | 58% | 60% | 58% | 59% | 61% | 64% | 65% | 65% | 65% | 67% | 65% | 65% |
| Pressure | 1,016 hectopascals | 1,016 hectopascals | 1,016 hectopascals | 1,016 hectopascals | 1,017 hectopascals | 1,018 hectopascals | 1,018 hectopascals | 1,019 hectopascals | 1,019 hectopascals | 1,019 hectopascals | 1,018 hectopascals | 1,018 hectopascals |
| Dew point temperature | 4.3° Celsius | 4.6° Celsius | 4.2° Celsius | 4.6° Celsius | 5.0° Celsius | 5.4° Celsius | 5.6° Celsius | 5.6° Celsius | 5.6° Celsius | 6.1° Celsius | 5.8° Celsius | 5.9° Celsius |
| Sea Temperature | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius |
| Wave Height | 4.6 metres | 4.2 metres | 3.9 metres | 3.7 metres | 4.1 metres | 4.1 metres | 3.6 metres | 3.4 metres | 4.6 metres | 3.9 metres | 4.4 metres | 3.7 metres |
| Wave period | 9.0 seconds | 10.0 seconds | 10.0 seconds | 9.0 seconds | 10.0 seconds | 10.0 seconds | 10.0 seconds | 9.0 seconds | 10.0 seconds | 9.0 seconds | 10.0 seconds | 9.0 seconds |
Wednesday (17 December 2025)
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature |
12.2° Celsius
|
12.3° Celsius
|
12.5° Celsius
|
12.6° Celsius
|
12.9° Celsius
|
13.0° Celsius
|
12.6° Celsius
|
12.3° Celsius
|
12.6° Celsius
|
12.8° Celsius
|
13.0° Celsius
|
13.2° Celsius
|
13.2° Celsius
|
13.3° Celsius
|
13.4° Celsius
|
13.6° Celsius
|
13.8° Celsius
|
14.1° Celsius
|
14.2° Celsius
|
14.2° Celsius
|
14.2° Celsius
|
13.2° Celsius
|
12.7° Celsius
|
13.2° Celsius
|
| Wind Direction and speed |
SSW
20
|
SSW
21
|
SSW
22
|
SSW
24
|
SSW
24
|
SSW
26
|
SSW
28
|
SSW
27
|
S
27
|
S
26
|
SSW
26
|
S
27
|
S
28
|
S
28
|
S
28
|
S
29
|
S
27
|
S
27
|
SSW
25
|
SSW
24
|
SSW
23
|
W
14
|
W
14
|
WSW
10
|
| Humidity | 66% | 66% | 68% | 67% | 72% | 74% | 78% | 84% | 87% | 90% | 92% | 92% | 94% | 95% | 96% | 96% | 96% | 97% | 97% | 97% | 97% | 97% | 97% | 95% |
| Pressure | 1,018 hectopascals | 1,017 hectopascals | 1,017 hectopascals | 1,017 hectopascals | 1,016 hectopascals | 1,016 hectopascals | 1,016 hectopascals | 1,016 hectopascals | 1,015 hectopascals | 1,015 hectopascals | 1,015 hectopascals | 1,014 hectopascals | 1,013 hectopascals | 1,012 hectopascals | 1,011 hectopascals | 1,010 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,010 hectopascals | 1,010 hectopascals | 1,010 hectopascals |
| Dew point temperature | 6.0° Celsius | 6.1° Celsius | 6.8° Celsius | 6.7° Celsius | 8.0° Celsius | 8.4° Celsius | 8.8° Celsius | 9.7° Celsius | 10.5° Celsius | 11.2° Celsius | 11.7° Celsius | 12.0° Celsius | 12.2° Celsius | 12.5° Celsius | 12.7° Celsius | 12.9° Celsius | 13.2° Celsius | 13.6° Celsius | 13.7° Celsius | 13.7° Celsius | 13.8° Celsius | 12.8° Celsius | 12.2° Celsius | 12.4° Celsius |
| Sea Temperature | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius |
| Wave Height | 3.6 metres | 3.8 metres | 4.1 metres | 3.6 metres | 3.7 metres | 3.7 metres | 3.6 metres | 3.6 metres | 3.9 metres | 4.1 metres | 3.9 metres | 4.0 metres | 4.4 metres | 4.5 metres | 4.9 metres | 4.5 metres | 4.7 metres | 4.5 metres | 4.3 metres | 4.1 metres | 3.9 metres | 4.1 metres | 4.1 metres | 4.6 metres |
| Wave period | 9.0 seconds | 8.0 seconds | 8.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 8.0 seconds |
Thursday (18 December 2025)
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature |
13.6° Celsius
|
13.6° Celsius
|
13.6° Celsius
|
13.6° Celsius
|
13.6° Celsius
|
13.6° Celsius
|
12.3° Celsius
|
11.2° Celsius
|
10.9° Celsius
|
10.9° Celsius
|
10.9° Celsius
|
11.2° Celsius
|
| Wind Direction and speed |
WSW
11
|
WSW
11
|
SW
8
|
SSW
10
|
S
13
|
SSW
13
|
WSW
6
|
S
4
|
SSE
5
|
WSW
5
|
W
4
|
SW
11
|
| Humidity | 94% | 94% | 94% | 94% | 94% | 94% | 87% | 90% | 92% | 93% | 94% | 94% |
| Pressure | 1,010 hectopascals | 1,009 hectopascals | 1,008 hectopascals | 1,007 hectopascals | 1,007 hectopascals | 1,006 hectopascals | 1,004 hectopascals | 1,003 hectopascals | 1,002 hectopascals | 1,002 hectopascals | 1,001 hectopascals | 1,001 hectopascals |
| Dew point temperature | 12.7° Celsius | 12.7° Celsius | 12.6° Celsius | 12.7° Celsius | 12.6° Celsius | 12.6° Celsius | 10.2° Celsius | 9.6° Celsius | 9.6° Celsius | 9.8° Celsius | 10.0° Celsius | 10.3° Celsius |
| Sea Temperature | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.6° Celsius | 13.5° Celsius | 13.5° Celsius | 13.5° Celsius | 13.5° Celsius |
| Wave Height | 4.1 metres | 5.1 metres | 5.5 metres | 8.1 metres | 8.5 metres | 10.2 metres | 8.8 metres | 8.3 metres | 9.4 metres | 8.6 metres | 7.9 metres | 8.5 metres |
| Wave period | 8.0 seconds | 10.0 seconds | 11.0 seconds | 14.0 seconds | 14.0 seconds | 14.0 seconds | 13.0 seconds | 13.0 seconds | 14.0 seconds | 13.0 seconds | 13.0 seconds | 13.0 seconds |
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