Coast and sea
Marine observations - Greenwich Light Vessel
- Location 50.417, 0
- Altitude 0 m above mean sea level
Sunday (19 April 2026)
| 21:00 | 22:00 | 23:00 | |
|---|---|---|---|
| Temperature |
11.3° Celsius
|
11.2° Celsius
|
10.7° Celsius
|
| Wind Direction and speed |
E
8
|
ENE
14
|
ENE
18
|
| Visibility | 10 nautical miles | 5 nautical miles | 10 nautical miles |
| Humidity | 74% | 81% | 80% |
| Pressure | 1,024 hectopascals | 1,024 hectopascals | 1,024 hectopascals |
| Dew point temperature | 6.8° Celsius | 8.1° Celsius | 7.3° Celsius |
| Sea Temperature | 11.2° Celsius | 11.2° Celsius | 11.1° Celsius |
| Wave Height | 0.3 metres | 0.3 metres | 0.4 metres |
| Wave period | 9.0 seconds | 8.0 seconds | 7.0 seconds |
Monday (20 April 2026)
| 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 |
10.7° Celsius
|
10.6° Celsius
|
10.5° Celsius
|
10.3° Celsius
|
10.1° Celsius
|
9.7° Celsius
|
9.7° Celsius
|
9.8° Celsius
|
9.6° Celsius
|
9.4° Celsius
|
9.7° Celsius
|
10.0° Celsius
|
10.2° Celsius
|
10.5° Celsius
|
10.5° Celsius
|
10.8° Celsius
|
10.7° Celsius
|
10.9° Celsius
|
11.0° Celsius
|
10.9° Celsius
|
10.7° Celsius
|
10.7° Celsius
|
10.2° Celsius
|
9.9° Celsius
|
| Wind Direction and speed |
ENE
16
|
ENE
13
|
ENE
13
|
ENE
13
|
NE
11
|
SE
13
|
NE
15
|
NE
18
|
NE
17
|
NE
19
|
NE
21
|
ENE
17
|
ENE
15
|
ENE
18
|
E
18
|
E
18
|
E
17
|
E
18
|
E
20
|
ENE
20
|
ENE
20
|
NE
21
|
NE
20
|
NE
21
|
| Visibility | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles |
| Humidity | 77% | 79% | 78% | 77% | 81% | 82% | 77% | 69% | 69% | 72% | 70% | 64% | 64% | 61% | 66% | 62% | 66% | 68% | 69% | 72% | 74% | 72% | 70% | 76% |
| Pressure | 1,024 hectopascals | 1,024 hectopascals | 1,024 hectopascals | 1,024 hectopascals | 1,023 hectopascals | 1,023 hectopascals | 1,024 hectopascals | 1,024 hectopascals | 1,024 hectopascals | 1,024 hectopascals | 1,024 hectopascals | 1,023 hectopascals | 1,023 hectopascals | 1,023 hectopascals | 1,022 hectopascals | 1,022 hectopascals | 1,022 hectopascals | 1,023 hectopascals | 1,022 hectopascals | 1,023 hectopascals | 1,023 hectopascals | 1,023 hectopascals | 1,023 hectopascals | 1,023 hectopascals |
| Dew point temperature | 6.8° Celsius | 7.2° Celsius | 6.9° Celsius | 6.4° Celsius | 7.0° Celsius | 6.8° Celsius | 5.8° Celsius | 4.4° Celsius | 4.1° Celsius | 4.6° Celsius | 4.4° Celsius | 3.6° Celsius | 3.8° Celsius | 3.2° Celsius | 4.4° Celsius | 3.7° Celsius | 4.6° Celsius | 5.2° Celsius | 5.5° Celsius | 6.1° Celsius | 6.2° Celsius | 5.8° Celsius | 5.0° Celsius | 5.9° Celsius |
| Sea Temperature | 11.0° Celsius | 11.0° Celsius | 11.0° Celsius | 11.0° Celsius | 11.0° Celsius | 10.9° Celsius | 10.9° Celsius | 10.9° Celsius | 10.9° Celsius | 11.0° Celsius | 11.0° Celsius | 11.1° Celsius | 11.1° Celsius | 11.1° Celsius | 11.2° Celsius | 11.3° Celsius | 11.3° Celsius | 11.3° Celsius | 11.2° Celsius | 11.1° Celsius | 11.1° Celsius | 11.0° Celsius | 11.0° Celsius | 11.0° Celsius |
| Wave Height | 0.5 metres | 0.4 metres | 0.4 metres | 0.4 metres | 0.3 metres | 0.3 metres | 0.3 metres | 0.2 metres | 0.3 metres | 0.5 metres | 0.4 metres | 0.4 metres | 0.5 metres | 0.6 metres | 0.4 metres | 0.5 metres | 0.4 metres | 0.3 metres | 0.3 metres | 0.3 metres | 0.3 metres | 0.7 metres | 0.7 metres | 0.6 metres |
| Wave period | 6.0 seconds | 8.0 seconds | 8.0 seconds | 7.0 seconds | 7.0 seconds | 7.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 4.0 seconds | 5.0 seconds | 6.0 seconds | 6.0 seconds | 5.0 seconds | 6.0 seconds | 5.0 seconds | 5.0 seconds | 5.0 seconds | 5.0 seconds | 6.0 seconds | 6.0 seconds | 5.0 seconds | 5.0 seconds | 6.0 seconds |
Tuesday (21 April 2026)
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature |
9.8° Celsius
|
9.6° Celsius
|
9.8° Celsius
|
10.0° Celsius
|
9.4° Celsius
|
10.1° Celsius
|
10.5° Celsius
|
9.6° Celsius
|
10.2° Celsius
|
10.3° Celsius
|
10.4° Celsius
|
10.5° Celsius
|
10.8° Celsius
|
10.7° Celsius
|
10.6° Celsius
|
10.6° Celsius
|
10.9° Celsius
|
11.2° Celsius
|
11.5° Celsius
|
11.5° Celsius
|
| Wind Direction and speed |
NE
22
|
NE
22
|
NE
20
|
NE
21
|
NNE
22
|
NE
23
|
NE
19
|
NE
18
|
ENE
15
|
ENE
18
|
NE
23
|
NE
24
|
NE
22
|
NE
24
|
NE
26
|
NE
28
|
NE
28
|
NE
29
|
NE
27
|
NE
27
|
| Visibility | 10 nautical miles | 5 nautical miles | 10 nautical miles | 5 nautical miles | 5 nautical miles | 10 nautical miles | 5 nautical miles | 5 nautical miles | 2 nautical miles | 5 nautical miles | 5 nautical miles | 5 nautical miles | 5 nautical miles | 2 nautical miles | 2 nautical miles | 2 nautical miles | 2 nautical miles | 2 nautical miles | 5 nautical miles | 5 nautical miles |
| Humidity | 77% | 76% | 79% | 82% | 86% | 77% | 81% | 87% | 83% | 79% | 75% | 78% | 76% | 79% | 79% | 80% | 80% | 80% | 78% | 73% |
| Pressure | 1,023 hectopascals | 1,023 hectopascals | 1,023 hectopascals | 1,023 hectopascals | 1,022 hectopascals | 1,023 hectopascals | 1,023 hectopascals | 1,024 hectopascals | 1,024 hectopascals | 1,024 hectopascals | 1,024 hectopascals | 1,023 hectopascals | 1,023 hectopascals | 1,023 hectopascals | 1,022 hectopascals | 1,022 hectopascals | 1,022 hectopascals | 1,022 hectopascals | 1,022 hectopascals | 1,023 hectopascals |
| Dew point temperature | 6.0° Celsius | 5.5° Celsius | 6.3° Celsius | 7.1° Celsius | 7.1° Celsius | 6.2° Celsius | 7.4° Celsius | 7.5° Celsius | 7.4° Celsius | 6.9° Celsius | 6.1° Celsius | 6.8° Celsius | 6.7° Celsius | 7.2° Celsius | 7.2° Celsius | 7.3° Celsius | 7.6° Celsius | 7.8° Celsius | 7.8° Celsius | 6.9° Celsius |
| Sea Temperature | 10.9° Celsius | 10.9° Celsius | 10.9° Celsius | 10.9° Celsius | 10.9° Celsius | 10.9° Celsius | 10.9° Celsius | 10.9° Celsius | 10.9° Celsius | 10.9° Celsius | 10.9° Celsius | 10.9° Celsius | 11.0° Celsius | 11.0° Celsius | 11.1° Celsius | 11.1° Celsius | 11.1° Celsius | 11.1° Celsius | 11.1° Celsius | 11.0° Celsius |
| Wave Height | 0.8 metres | 1.1 metres | 0.7 metres | 0.7 metres | 0.7 metres | 0.7 metres | 0.5 metres | 0.4 metres | 0.4 metres | 0.3 metres | 0.8 metres | 0.7 metres | 0.8 metres | 1.3 metres | 1.0 metres | 1.1 metres | 1.1 metres | 1.0 metres | 1.1 metres | 0.9 metres |
| Wave period | 5.0 seconds | 5.0 seconds | 5.0 seconds | 5.0 seconds | 5.0 seconds | 5.0 seconds | 5.0 seconds | 5.0 seconds | 5.0 seconds | 6.0 seconds | 5.0 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 |
Latest observations by area
-
Belfast International Airport ‐ Land
-
Belmullet ‐ Land
-
Campbeltown Airport ‐ Land
-
Crosby ‐ Land
-
Islay Airport ‐ Land
-
K4 ‐ Buoy
-
K5 ‐ Buoy
-
M2 ‐ Buoy
-
M3 ‐ Buoy
-
M4 ‐ Buoy
-
M5 ‐ Buoy
-
Malin Head ‐ Land
-
Roches Point ‐ Land
-
Ronaldsway ‐ Land
-
Skye/Lusa ‐ Land
-
South Uist Range ‐ Land
-
St. Bees Head ‐ Land
-
Stornoway Airport - Climate Station ‐ Land
-
Tiree ‐ Land
-
Valentia Observatory ‐ Land
-
Valley ‐ Land
Marine forecasts disclaimer
In the UK, the Maritime & Coastguard Agency (MCA) is responsible for the provision of Maritime Safety Information (MSI) to ships at sea, which includes the broadcast of warnings and forecasts. The Met Office initiates warnings and prepares routine forecasts for dissemination on behalf of the MCA.
Caution: The internet is not part of the Maritime Safety Information system and should never be relied upon as the only means to obtain the latest forecast and warning information. Access to the service may be interrupted or delayed from time to time, updates may also be delayed.
Please refer to GMDSS services, INMARSAT SafetyNET or international NAVTEX for the latest information. When using these web pages, always check that the page on your screen is not from your cache. Use the Refresh or Reload button if in any doubt.