Coast and sea
Marine observations - Greenwich Light Vessel
- Location 50.417, 0
- Altitude 0 m above mean sea level
Thursday (1 January 2026)
| 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 |
7.7° Celsius
|
7.6° Celsius
|
7.6° Celsius
|
7.7° Celsius
|
8.0° Celsius
|
8.3° Celsius
|
8.3° Celsius
|
8.6° Celsius
|
8.8° Celsius
|
8.8° Celsius
|
8.6° Celsius
|
8.6° Celsius
|
8.3° Celsius
|
7.9° Celsius
|
7.7° Celsius
|
| Wind Direction and speed |
W
28
|
WNW
26
|
W
25
|
WNW
20
|
WNW
23
|
WNW
20
|
WNW
24
|
WNW
24
|
WNW
23
|
WNW
26
|
WNW
24
|
WNW
25
|
WNW
26
|
WNW
23
|
WNW
22
|
| 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 |
| Humidity | 67% | 72% | 71% | 77% | 76% | 76% | 74% | 72% | 71% | 66% | 67% | 65% | 67% | 68% | 70% |
| Pressure | 1,012 hectopascals | 1,012 hectopascals | 1,011 hectopascals | 1,011 hectopascals | 1,010 hectopascals | 1,010 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,008 hectopascals | 1,008 hectopascals | 1,008 hectopascals | 1,008 hectopascals | 1,008 hectopascals | 1,008 hectopascals |
| Dew point temperature | 2.0° Celsius | 2.8° Celsius | 2.7° Celsius | 3.9° Celsius | 4.1° Celsius | 4.4° Celsius | 3.9° Celsius | 3.8° Celsius | 3.8° Celsius | 2.7° Celsius | 2.8° Celsius | 2.5° Celsius | 2.5° Celsius | 2.3° Celsius | 2.5° Celsius |
| Sea Temperature | 10.1° Celsius | 10.1° Celsius | 10.2° Celsius | 10.2° Celsius | 10.3° Celsius | 10.3° Celsius | 10.4° Celsius | 10.4° Celsius | 10.3° Celsius | 10.3° Celsius | 10.3° Celsius | 10.3° Celsius | 10.2° Celsius | 10.2° Celsius | 10.2° Celsius |
| Wave Height | 0.6 metres | 0.8 metres | 1.3 metres | 1.3 metres | 1.4 metres | 1.5 metres | 1.6 metres | 1.2 metres | 1.2 metres | 1.2 metres | 1.1 metres | 1.0 metres | 1.0 metres | 1.2 metres | 1.3 metres |
| Wave period | 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 |
Friday (2 January 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 |
7.7° Celsius
|
7.5° Celsius
|
7.6° Celsius
|
7.5° Celsius
|
7.5° Celsius
|
7.6° Celsius
|
7.5° Celsius
|
8.0° Celsius
|
7.5° Celsius
|
6.7° Celsius
|
6.4° Celsius
|
6.0° Celsius
|
5.4° Celsius
|
5.5° Celsius
|
5.4° Celsius
|
5.6° Celsius
|
5.5° Celsius
|
5.4° Celsius
|
5.2° Celsius
|
5.2° Celsius
|
5.2° Celsius
|
5.4° Celsius
|
5.7° Celsius
|
5.7° Celsius
|
| Wind Direction and speed |
WNW
20
|
NW
19
|
NW
19
|
WNW
19
|
WNW
26
|
WNW
22
|
WNW
26
|
W
30
|
NW
30
|
NW
23
|
NNW
22
|
NNW
24
|
NNW
20
|
NNW
18
|
NW
19
|
NW
15
|
NW
19
|
NW
23
|
NNW
22
|
NW
21
|
NW
19
|
NW
19
|
WNW
19
|
WNW
21
|
| Visibility | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 5 nautical miles | 5 nautical miles | 5 nautical miles | 5 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 | 70% | 64% | 70% | 63% | 71% | 66% | 73% | 73% | 74% | 77% | No data | 63% | 63% | 51% | 52% | 58% | 53% | 50% | 57% | 58% | 59% | 63% | 58% | No data |
| Pressure | 1,007 hectopascals | 1,007 hectopascals | 1,007 hectopascals | 1,007 hectopascals | 1,007 hectopascals | 1,006 hectopascals | 1,006 hectopascals | 1,005 hectopascals | 1,005 hectopascals | 1,006 hectopascals | 1,006 hectopascals | 1,006 hectopascals | 1,007 hectopascals | 1,007 hectopascals | 1,007 hectopascals | 1,008 hectopascals | 1,008 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,010 hectopascals |
| Dew point temperature | 2.6° Celsius | 1.2° Celsius | 2.5° Celsius | 1.0° Celsius | 2.5° Celsius | 1.6° Celsius | 2.9° Celsius | 3.5° Celsius | 3.1° Celsius | 3.0° Celsius | 0.0° Celsius | -0.4° Celsius | -1.1° Celsius | -3.9° Celsius | -3.6° Celsius | -2.0° Celsius | -3.2° Celsius | -4.3° Celsius | -2.6° Celsius | -2.5° Celsius | -2.1° Celsius | -1.1° Celsius | -1.8° Celsius | 0.0° Celsius |
| Sea Temperature | 10.2° Celsius | 10.2° Celsius | 10.2° Celsius | 10.1° Celsius | 10.1° Celsius | 10.0° Celsius | 10.0° Celsius | 10.1° Celsius | 10.0° Celsius | 10.0° Celsius | 10.1° Celsius | 10.1° Celsius | 10.1° Celsius | 10.1° Celsius | 10.1° Celsius | 10.0° Celsius | 9.9° Celsius | 9.8° Celsius | 9.8° Celsius | 9.8° Celsius | 9.8° Celsius | 9.7° Celsius | 9.8° Celsius | 9.8° Celsius |
| Wave Height | 1.3 metres | 1.2 metres | 1.3 metres | 1.2 metres | 1.2 metres | 0.9 metres | 0.9 metres | 1.0 metres | 1.1 metres | 1.1 metres | 1.5 metres | 1.1 metres | 0.9 metres | 0.9 metres | 0.9 metres | 0.9 metres | 1.0 metres | 0.9 metres | 0.8 metres | 0.7 metres | 0.6 metres | 0.6 metres | 0.6 metres | 0.7 metres |
| Wave period | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 5.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 5.0 seconds | 5.0 seconds | 6.0 seconds | 5.0 seconds | 5.0 seconds | 6.0 seconds | 5.0 seconds | 5.0 seconds | 5.0 seconds | 6.0 seconds | 6.0 seconds | 5.0 seconds |
Saturday (3 January 2026)
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | |
|---|---|---|---|---|---|---|---|---|---|
| Temperature |
5.9° Celsius
|
6.2° Celsius
|
6.0° Celsius
|
5.7° Celsius
|
5.8° Celsius
|
5.3° Celsius
|
4.9° Celsius
|
4.6° Celsius
|
4.6° Celsius
|
| Wind Direction and speed |
WNW
15
|
WNW
20
|
NW
18
|
NW
18
|
WNW
23
|
NW
27
|
NW
24
|
NW
24
|
NW
27
|
| 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 |
| Humidity | 62% | 71% | 72% | 71% | 73% | 71% | 66% | 68% | 59% |
| Pressure | 1,009 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,009 hectopascals | 1,009 hectopascals |
| Dew point temperature | -0.8° Celsius | 1.3° Celsius | 1.4° Celsius | 0.9° Celsius | 1.3° Celsius | 0.4° Celsius | -1.0° Celsius | -0.8° Celsius | -2.7° Celsius |
| Sea Temperature | 9.8° Celsius | 9.7° Celsius | 9.7° Celsius | 9.7° Celsius | 9.7° Celsius | 9.7° Celsius | 9.6° Celsius | 9.6° Celsius | 9.6° Celsius |
| Wave Height | 0.9 metres | 1.0 metres | 1.0 metres | 1.0 metres | 1.1 metres | 1.0 metres | 0.8 metres | 0.7 metres | 0.7 metres |
| Wave period | 5.0 seconds | 5.0 seconds | 5.0 seconds | 5.0 seconds | 5.0 seconds | 6.0 seconds | 5.0 seconds | 5.0 seconds | 5.0 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.