Coast and sea
Marine observations - Brittany
- Location 47.55, -8.47
- Altitude 0 m above mean sea level
Thursday (27 November 2025)
| 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 | |
|---|---|---|---|---|---|---|
| Temperature |
13.8° Celsius
|
14.0° Celsius
|
14.4° Celsius
|
13.7° Celsius
|
14.0° Celsius
|
12.9° Celsius
|
| Wind Direction and speed |
W
13
|
W
14
|
SW
12
|
WSW
11
|
WSW
14
|
W
12
|
| Humidity | 92% | 85% | 83% | 91% | 86% | 91% |
| Pressure | 1,018 hectopascals | 1,019 hectopascals | 1,019 hectopascals | 1,019 hectopascals | 1,019 hectopascals | 1,019 hectopascals |
| Dew point temperature | 12.6° Celsius | 11.6° Celsius | 11.5° Celsius | 12.2° Celsius | 11.7° Celsius | 11.5° Celsius |
| Sea Temperature | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius |
| Wave Height | 2.5 metres | 2.5 metres | 2.5 metres | 2.6 metres | 2.2 metres | 2.4 metres |
| Wave period | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds |
Friday (28 November 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 |
14.3° Celsius
|
14.6° Celsius
|
14.4° Celsius
|
14.5° Celsius
|
14.4° Celsius
|
14.4° Celsius
|
14.4° Celsius
|
14.2° Celsius
|
14.3° Celsius
|
14.0° Celsius
|
14.2° Celsius
|
14.5° Celsius
|
14.5° Celsius
|
14.4° Celsius
|
14.5° Celsius
|
14.4° Celsius
|
14.4° Celsius
|
14.2° Celsius
|
14.5° Celsius
|
14.0° Celsius
|
13.9° Celsius
|
14.5° Celsius
|
14.7° Celsius
|
13.4° Celsius
|
| Wind Direction and speed |
WSW
14
|
W
13
|
W
14
|
WSW
14
|
W
15
|
WSW
17
|
WSW
18
|
W
18
|
W
18
|
WSW
20
|
W
18
|
WSW
19
|
WSW
20
|
SW
20
|
WSW
21
|
SW
19
|
SW
19
|
WSW
19
|
SW
21
|
SSW
21
|
SW
25
|
SW
24
|
SW
24
|
SW
25
|
| Humidity | 79% | 75% | 72% | 73% | 72% | 74% | 72% | 71% | 68% | 74% | 74% | 71% | 73% | 77% | 76% | 78% | 77% | 81% | 77% | 81% | 85% | 80% | 77% | 85% |
| Pressure | 1,019 hectopascals | 1,018 hectopascals | 1,018 hectopascals | 1,018 hectopascals | 1,018 hectopascals | 1,018 hectopascals | 1,018 hectopascals | 1,017 hectopascals | 1,018 hectopascals | 1,018 hectopascals | 1,018 hectopascals | 1,018 hectopascals | 1,017 hectopascals | 1,017 hectopascals | 1,016 hectopascals | 1,015 hectopascals | 1,015 hectopascals | 1,015 hectopascals | 1,015 hectopascals | 1,014 hectopascals | 1,014 hectopascals | 1,013 hectopascals | 1,012 hectopascals | 1,011 hectopascals |
| Dew point temperature | 10.7° Celsius | 10.3° Celsius | 9.5° Celsius | 9.8° Celsius | 9.5° Celsius | 9.8° Celsius | 9.5° Celsius | 9.0° Celsius | 8.5° Celsius | 9.4° Celsius | 9.6° Celsius | 9.4° Celsius | 9.8° Celsius | 10.5° Celsius | 10.4° Celsius | 10.6° Celsius | 10.4° Celsius | 11.0° Celsius | 10.5° Celsius | 10.7° Celsius | 11.5° Celsius | 11.0° Celsius | 10.8° Celsius | 11.0° Celsius |
| Sea Temperature | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.6° Celsius | 14.5° Celsius | 14.5° Celsius |
| Wave Height | 2.2 metres | 2.5 metres | 2.5 metres | 2.8 metres | 3.2 metres | 4.0 metres | 4.9 metres | 6.1 metres | 6.6 metres | 6.2 metres | 6.4 metres | 5.6 metres | 5.9 metres | 5.7 metres | 6.0 metres | 5.6 metres | 5.5 metres | 5.6 metres | 5.6 metres | 5.5 metres | 5.4 metres | 5.0 metres | 5.5 metres | 4.7 metres |
| Wave period | 6.0 seconds | 6.0 seconds | 6.0 seconds | 7.0 seconds | 8.0 seconds | 9.0 seconds | 10.0 seconds | 11.0 seconds | 11.0 seconds | 11.0 seconds | 11.0 seconds | 10.0 seconds | 10.0 seconds | 10.0 seconds | 10.0 seconds | 9.0 seconds | 9.0 seconds | 9.0 seconds | 9.0 seconds | 9.0 seconds | 9.0 seconds | 9.0 seconds | 9.0 seconds | 8.0 seconds |
Saturday (29 November 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature |
14.2° Celsius
|
14.0° Celsius
|
13.7° Celsius
|
14.1° Celsius
|
12.3° Celsius
|
12.4° Celsius
|
12.6° Celsius
|
12.3° Celsius
|
12.4° Celsius
|
12.3° Celsius
|
12.2° Celsius
|
11.9° Celsius
|
12.0° Celsius
|
12.4° Celsius
|
11.8° Celsius
|
12.4° Celsius
|
12.5° Celsius
|
12.5° Celsius
|
| Wind Direction and speed |
SSW
26
|
SSW
26
|
SSW
30
|
SW
29
|
NW
23
|
NNW
25
|
NNW
24
|
NW
22
|
NW
22
|
WNW
22
|
NNW
21
|
NNW
22
|
NNW
22
|
NNW
27
|
NNW
20
|
NW
22
|
NNW
25
|
NW
22
|
| Humidity | 84% | 85% | 90% | 88% | 86% | 74% | 72% | 64% | 63% | 65% | 72% | 68% | 68% | 65% | 68% | 65% | 68% | 61% |
| Pressure | 1,010 hectopascals | 1,009 hectopascals | 1,008 hectopascals | 1,007 hectopascals | 1,007 hectopascals | 1,008 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,010 hectopascals | 1,010 hectopascals | 1,010 hectopascals | 1,011 hectopascals | 1,011 hectopascals | 1,011 hectopascals | 1,011 hectopascals | 1,011 hectopascals | 1,012 hectopascals | 1,013 hectopascals |
| Dew point temperature | 11.5° Celsius | 11.6° Celsius | 12.1° Celsius | 12.2° Celsius | 10.1° Celsius | 7.9° Celsius | 7.6° Celsius | 5.7° Celsius | 5.5° Celsius | 5.8° Celsius | 7.3° Celsius | 6.1° Celsius | 6.3° Celsius | 5.9° Celsius | 6.0° Celsius | 6.1° Celsius | 6.7° Celsius | 5.2° Celsius |
| Sea Temperature | 14.5° Celsius | 14.5° Celsius | 14.4° Celsius | 14.5° Celsius | 14.5° Celsius | 14.5° Celsius | 14.5° Celsius | 14.5° Celsius | 14.4° Celsius | 14.3° Celsius | 14.3° Celsius | 14.2° Celsius | 14.3° Celsius | 14.3° Celsius | 14.3° Celsius | 14.3° Celsius | 14.3° Celsius | 14.4° Celsius |
| Wave Height | 5.0 metres | 4.8 metres | 4.8 metres | 5.7 metres | 5.3 metres | 5.4 metres | 4.9 metres | 4.8 metres | 4.9 metres | 4.5 metres | 4.7 metres | 4.4 metres | 4.1 metres | 4.5 metres | 4.6 metres | 4.8 metres | 4.5 metres | 4.4 metres |
| Wave period | 8.0 seconds | 7.0 seconds | 8.0 seconds | 8.0 seconds | 8.0 seconds | 8.0 seconds | 8.0 seconds | 8.0 seconds | 8.0 seconds | 7.0 seconds | 8.0 seconds | 8.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 8.0 seconds | 8.0 seconds | 8.0 seconds |
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