Coast and sea
Marine observations - Brittany
- Location 47.55, -8.47
- Altitude 0 m above mean sea level
Tuesday (16 September 2025)
| 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 | |
|---|---|---|---|---|---|---|---|---|---|
| Temperature |
17.4° Celsius
|
17.4° Celsius
|
17.4° Celsius
|
17.5° Celsius
|
17.6° Celsius
|
17.6° Celsius
|
17.6° Celsius
|
17.6° Celsius
|
17.6° Celsius
|
| Wind Direction and speed |
SSW
14
|
SSW
15
|
SSW
14
|
S
16
|
SSW
18
|
S
19
|
S
18
|
SSW
18
|
S
21
|
| Humidity | 75% | 77% | 77% | 77% | 78% | 78% | 81% | 80% | 80% |
| Pressure | 1,023 hectopascals | 1,023 hectopascals | 1,022 hectopascals | 1,021 hectopascals | 1,021 hectopascals | 1,021 hectopascals | 1,021 hectopascals | 1,021 hectopascals | 1,020 hectopascals |
| Dew point temperature | 13.0° Celsius | 13.4° Celsius | 13.4° Celsius | 13.4° Celsius | 13.7° Celsius | 13.8° Celsius | 14.3° Celsius | 14.2° Celsius | 14.2° Celsius |
| Sea Temperature | 17.1° Celsius | 17.1° Celsius | 17.1° Celsius | 17.1° Celsius | 17.1° Celsius | 17.1° Celsius | 17.1° Celsius | 17.1° Celsius | 17.0° Celsius |
| Wave Height | 2.5 metres | 2.5 metres | 2.6 metres | 2.6 metres | 2.6 metres | 2.7 metres | 2.5 metres | 2.4 metres | 2.3 metres |
| Wave period | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 5.0 seconds |
Wednesday (17 September 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 |
17.6° Celsius
|
17.7° Celsius
|
17.7° Celsius
|
17.7° Celsius
|
17.7° Celsius
|
17.6° Celsius
|
17.4° Celsius
|
17.5° Celsius
|
17.6° Celsius
|
17.7° Celsius
|
17.9° Celsius
|
17.9° Celsius
|
18.0° Celsius
|
18.1° Celsius
|
18.1° Celsius
|
18.1° Celsius
|
18.2° Celsius
|
18.2° Celsius
|
18.2° Celsius
|
18.2° Celsius
|
18.2° Celsius
|
18.2° Celsius
|
18.0° Celsius
|
18.0° Celsius
|
| Wind Direction and speed |
SSW
21
|
S
22
|
S
21
|
SSW
19
|
SSW
20
|
SSW
22
|
S
20
|
S
20
|
SSW
20
|
SSW
19
|
SSW
19
|
S
18
|
S
18
|
S
18
|
SSW
16
|
S
16
|
SSW
17
|
SSW
17
|
SSW
15
|
SSW
15
|
SSW
15
|
SSW
13
|
SSW
13
|
SW
14
|
| Humidity | 83% | 83% | 86% | 88% | 89% | 92% | 95% | 96% | 96% | 96% | 96% | 96% | 96% | 96% | 96% | 96% | 96% | 96% | 96% | 96% | 96% | 96% | 96% | 98% |
| Pressure | 1,020 hectopascals | 1,020 hectopascals | 1,019 hectopascals | 1,019 hectopascals | 1,019 hectopascals | 1,019 hectopascals | 1,019 hectopascals | 1,019 hectopascals | 1,019 hectopascals | 1,019 hectopascals | 1,020 hectopascals | 1,020 hectopascals | 1,020 hectopascals | 1,020 hectopascals | 1,020 hectopascals | 1,019 hectopascals | 1,019 hectopascals | 1,020 hectopascals | 1,020 hectopascals | 1,020 hectopascals | 1,021 hectopascals | 1,021 hectopascals | 1,021 hectopascals | 1,021 hectopascals |
| Dew point temperature | 14.6° Celsius | 14.8° Celsius | 15.3° Celsius | 15.6° Celsius | 15.8° Celsius | 16.2° Celsius | 16.6° Celsius | 16.8° Celsius | 17.0° Celsius | 17.1° Celsius | 17.3° Celsius | 17.3° Celsius | 17.4° Celsius | 17.5° Celsius | 17.5° Celsius | 17.5° Celsius | 17.6° Celsius | 17.5° Celsius | 17.5° Celsius | 17.5° Celsius | 17.5° Celsius | 17.5° Celsius | 17.4° Celsius | 17.6° Celsius |
| Sea Temperature | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius | 16.9° Celsius | 16.9° Celsius | 16.9° Celsius | 16.9° Celsius | 16.9° Celsius | 16.9° Celsius | 16.9° Celsius | 17.0° Celsius | 16.9° Celsius | 17.0° Celsius | 16.9° Celsius | 16.9° Celsius | 16.9° Celsius | 16.9° Celsius | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius |
| Wave Height | 2.2 metres | 2.1 metres | 2.1 metres | 2.1 metres | 2.4 metres | 2.3 metres | 2.7 metres | 2.5 metres | 2.6 metres | 2.9 metres | 2.9 metres | 2.7 metres | 2.7 metres | 2.4 metres | 2.5 metres | 2.6 metres | 2.7 metres | 2.5 metres | 2.7 metres | 2.7 metres | 2.7 metres | 2.9 metres | 3.0 metres | 3.1 metres |
| Wave period | 5.0 seconds | 5.0 seconds | 5.0 seconds | 5.0 seconds | 6.0 seconds | 5.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds |
Thursday (18 September 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature |
17.9° Celsius
|
17.9° Celsius
|
18.1° Celsius
|
18.0° Celsius
|
18.0° Celsius
|
18.0° Celsius
|
18.0° Celsius
|
18.0° Celsius
|
18.0° Celsius
|
18.1° Celsius
|
18.2° Celsius
|
18.2° Celsius
|
18.2° Celsius
|
18.1° Celsius
|
18.2° Celsius
|
| Wind Direction and speed |
S
14
|
S
13
|
S
14
|
S
13
|
S
12
|
S
13
|
S
14
|
S
15
|
S
15
|
SSW
16
|
S
15
|
S
16
|
S
15
|
SSW
15
|
SSW
15
|
| Humidity | 98% | 98% | 98% | 98% | 98% | 98% | 98% | 98% | 97% | 96% | 95% | 96% | 95% | 94% | 94% |
| Pressure | 1,021 hectopascals | 1,020 hectopascals | 1,020 hectopascals | 1,020 hectopascals | 1,019 hectopascals | 1,019 hectopascals | 1,019 hectopascals | 1,020 hectopascals | 1,020 hectopascals | 1,020 hectopascals | 1,020 hectopascals | 1,021 hectopascals | 1,020 hectopascals | 1,020 hectopascals | 1,020 hectopascals |
| Dew point temperature | 17.5° Celsius | 17.5° Celsius | 17.7° Celsius | 17.6° Celsius | 17.6° Celsius | 17.6° Celsius | 17.6° Celsius | 17.6° Celsius | 17.5° Celsius | 17.5° Celsius | 17.4° Celsius | 17.5° Celsius | 17.4° Celsius | 17.1° Celsius | 17.2° Celsius |
| Sea Temperature | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius | 17.0° Celsius | 17.1° Celsius | 17.1° Celsius | 17.1° Celsius |
| Wave Height | 2.8 metres | 2.7 metres | 2.4 metres | 2.8 metres | 2.7 metres | 2.5 metres | 2.3 metres | 2.3 metres | 2.4 metres | 2.4 metres | 2.6 metres | 2.4 metres | 2.4 metres | 2.7 metres | 2.1 metres |
| Wave period | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 7.0 seconds | 6.0 seconds | 7.0 seconds | 7.0 seconds | 6.0 seconds |
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