Coast and sea
Marine observations - Greenwich Light Vessel
- Location 50.417, 0
- Altitude 0 m above mean sea level
Sunday (17 May 2026)
| 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 |
12.5° Celsius
|
12.6° Celsius
|
12.9° Celsius
|
13.0° Celsius
|
12.9° Celsius
|
12.8° Celsius
|
12.7° Celsius
|
12.5° Celsius
|
12.6° Celsius
|
12.2° Celsius
|
12.4° Celsius
|
12.3° Celsius
|
| Wind Direction and speed |
W
14
|
WSW
11
|
WSW
14
|
W
15
|
W
17
|
W
18
|
W
18
|
W
17
|
WSW
16
|
W
12
|
W
18
|
WSW
18
|
| Visibility | 5 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 | 5 nautical miles | 5 nautical miles | 5 nautical miles |
| Humidity | 79% | 78% | 76% | 74% | 72% | 78% | 78% | 79% | 80% | 80% | 77% | 78% |
| Pressure | 1,012 hectopascals | 1,012 hectopascals | 1,012 hectopascals | 1,012 hectopascals | 1,012 hectopascals | 1,012 hectopascals | 1,013 hectopascals | 1,013 hectopascals | 1,013 hectopascals | 1,013 hectopascals | 1,012 hectopascals | 1,012 hectopascals |
| Dew point temperature | 9.0° Celsius | 8.8° Celsius | 8.8° Celsius | 8.4° Celsius | 7.9° Celsius | 9.0° Celsius | 8.9° Celsius | 8.9° Celsius | 9.2° Celsius | 8.9° Celsius | 8.5° Celsius | 8.5° Celsius |
| Sea Temperature | 12.2° Celsius | 12.4° Celsius | 12.5° Celsius | 12.5° Celsius | 12.5° Celsius | 12.4° Celsius | 12.4° Celsius | 12.3° Celsius | 12.3° Celsius | 12.3° Celsius | 12.2° Celsius | 12.2° Celsius |
| Wave Height | 0.4 metres | 0.5 metres | 0.4 metres | 0.3 metres | 0.4 metres | 0.5 metres | 0.5 metres | 0.4 metres | 0.4 metres | 0.4 metres | 0.5 metres | 0.5 metres |
| Wave period | 5.0 seconds | 5.0 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 | 6.0 seconds |
Monday (18 May 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 |
12.3° Celsius
|
12.3° Celsius
|
11.8° Celsius
|
11.3° Celsius
|
11.1° Celsius
|
10.9° Celsius
|
11.1° Celsius
|
11.4° Celsius
|
11.7° Celsius
|
11.8° Celsius
|
12.0° Celsius
|
11.8° Celsius
|
11.9° Celsius
|
11.9° Celsius
|
12.5° Celsius
|
12.7° Celsius
|
12.8° Celsius
|
14.7° Celsius
|
13.9° Celsius
|
13.9° Celsius
|
14.0° Celsius
|
13.7° Celsius
|
14.4° Celsius
|
13.1° Celsius
|
| Wind Direction and speed |
WSW
18
|
W
18
|
WSW
18
|
WSW
21
|
W
17
|
W
15
|
WSW
17
|
WSW
15
|
WSW
17
|
SW
19
|
WSW
20
|
WSW
20
|
WSW
15
|
SW
15
|
SW
14
|
SSW
14
|
SSW
11
|
ENE
12
|
S
12
|
S
14
|
S
8
|
S
9
|
S
9
|
S
15
|
| Visibility | 5 nautical miles | 5 nautical miles | 2 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 | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 10 nautical miles | 5 nautical miles |
| Humidity | 77% | 78% | 73% | 83% | 85% | 79% | 77% | 79% | 78% | 81% | 74% | 74% | 72% | 72% | 69% | 73% | 72% | 71% | 73% | 72% | 76% | 77% | 82% | 80% |
| Pressure | 1,012 hectopascals | 1,012 hectopascals | 1,012 hectopascals | 1,012 hectopascals | 1,012 hectopascals | 1,013 hectopascals | 1,013 hectopascals | 1,013 hectopascals | 1,014 hectopascals | 1,014 hectopascals | 1,014 hectopascals | 1,014 hectopascals | 1,014 hectopascals | 1,014 hectopascals | 1,014 hectopascals | 1,014 hectopascals | 1,014 hectopascals | 1,015 hectopascals | 1,014 hectopascals | 1,014 hectopascals | 1,014 hectopascals | 1,014 hectopascals | 1,013 hectopascals | 1,013 hectopascals |
| Dew point temperature | 8.4° Celsius | 8.6° Celsius | 7.2° Celsius | 8.6° Celsius | 8.6° Celsius | 7.4° Celsius | 7.3° Celsius | 7.8° Celsius | 8.0° Celsius | 8.6° Celsius | 7.5° Celsius | 7.4° Celsius | 7.1° Celsius | 7.0° Celsius | 7.0° Celsius | 7.9° Celsius | 7.8° Celsius | 9.4° Celsius | 9.2° Celsius | 9.0° Celsius | 9.9° Celsius | 9.7° Celsius | 11.3° Celsius | 9.8° Celsius |
| Sea Temperature | 12.2° Celsius | 12.2° Celsius | 12.2° Celsius | 12.1° Celsius | 12.1° Celsius | 12.0° Celsius | 12.0° Celsius | 12.0° Celsius | 12.0° Celsius | 12.1° Celsius | 12.1° Celsius | 12.2° Celsius | 12.2° Celsius | 12.3° Celsius | 12.4° Celsius | 12.5° Celsius | 12.5° Celsius | 12.5° Celsius | 12.4° Celsius | 12.4° Celsius | 12.3° Celsius | 12.3° Celsius | 12.3° Celsius | 12.3° Celsius |
| Wave Height | 0.5 metres | 0.7 metres | 0.7 metres | 0.7 metres | 0.6 metres | 0.6 metres | 0.8 metres | 0.5 metres | 0.5 metres | 0.4 metres | 0.5 metres | 0.6 metres | 0.6 metres | 0.7 metres | 0.7 metres | 0.5 metres | 0.5 metres | 0.4 metres | 0.4 metres | 0.5 metres | 0.4 metres | 0.4 metres | 0.4 metres | 0.5 metres |
| Wave period | 6.0 seconds | 5.0 seconds | 5.0 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 | 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 | 6.0 seconds |
Tuesday (19 May 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature |
13.2° Celsius
|
13.3° Celsius
|
13.1° Celsius
|
12.9° Celsius
|
12.5° Celsius
|
12.7° Celsius
|
12.8° Celsius
|
13.0° Celsius
|
12.8° Celsius
|
13.0° Celsius
|
13.3° Celsius
|
13.4° Celsius
|
| Wind Direction and speed |
S
17
|
S
19
|
S
21
|
S
24
|
S
25
|
S
27
|
S
27
|
S
28
|
S
29
|
S
28
|
S
24
|
S
23
|
| Visibility | 5 nautical miles | 5 nautical miles | 2 nautical miles | 2 nautical miles | 2 nautical miles | 2 nautical miles | 2 nautical miles | < 1 nautical miles | 2 nautical miles | 2 nautical miles | 2 nautical miles | 2 nautical miles |
| Humidity | 82% | 82% | 84% | 85% | 91% | 90% | 91% | 92% | 95% | 94% | 93% | 94% |
| Pressure | 1,013 hectopascals | 1,012 hectopascals | 1,011 hectopascals | 1,011 hectopascals | 1,011 hectopascals | 1,010 hectopascals | 1,010 hectopascals | 1,010 hectopascals | 1,010 hectopascals | 1,010 hectopascals | 1,010 hectopascals | 1,010 hectopascals |
| Dew point temperature | 10.2° Celsius | 10.3° Celsius | 10.4° Celsius | 10.4° Celsius | 11.0° Celsius | 11.1° Celsius | 11.3° Celsius | 11.8° Celsius | 12.0° Celsius | 12.1° Celsius | 12.2° Celsius | 12.4° Celsius |
| Sea Temperature | 12.3° Celsius | 12.3° Celsius | 12.3° Celsius | 12.3° Celsius | 12.3° Celsius | 12.3° Celsius | 12.2° Celsius | 12.2° Celsius | 12.2° Celsius | 12.3° Celsius | 12.3° Celsius | 12.3° Celsius |
| Wave Height | 0.6 metres | 0.6 metres | 0.7 metres | 0.7 metres | 0.9 metres | 1.2 metres | 1.3 metres | 1.1 metres | 1.1 metres | 1.5 metres | 1.4 metres | 1.4 metres |
| Wave period | 6.0 seconds | 6.0 seconds | 6.0 seconds | 5.0 seconds | 5.0 seconds | 5.0 seconds | 5.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds | 6.0 seconds |
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