Coast and sea
Marine observations - Guernsey
- Location 49.44, -2.6
- Altitude 101 m above mean sea level
Monday (1 September 2025)
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Weather |
|||||||||||||||
| Weather Symbol |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Temperature |
17.1° Celsius
|
17.5° Celsius
|
17.6° Celsius
|
19.2° Celsius
|
17.8° Celsius
|
17.5° Celsius
|
18.4° Celsius
|
18.2° Celsius
|
17.4° Celsius
|
16.5° Celsius
|
15.8° Celsius
|
15.8° Celsius
|
15.9° Celsius
|
15.5° Celsius
|
15.8° Celsius
|
| Wind Direction and speed |
WSW
8
|
WSW
9
|
WSW
9
|
WSW
10
|
WSW
9
|
WSW
8
|
W
8
|
W
9
|
WSW
9
|
WSW
8
|
WSW
8
|
WSW
7
|
WSW
6
|
WSW
7
|
SW
6
|
| Wind gust | No data | 13 knots | 13 knots | 13 knots | 13 knots | 13 knots | 13 knots | 13 knots | No data | No data | No data | No data | No data | No data | No data |
| Visibility | 18 nautical miles | 18 nautical miles | 18 nautical miles | 18 nautical miles | 18 nautical miles | 21 nautical miles | 21 nautical miles | 21 nautical miles | 24 nautical miles | 24 nautical miles | 24 nautical miles | 21 nautical miles | 21 nautical miles | 21 nautical miles | 21 nautical miles |
| Humidity | 76% | 79% | 79% | 69% | 74% | 71% | 67% | 65% | 72% | 76% | 80% | 83% | 82% | 82% | 79% |
| Pressure | 1,005 hectopascals | 1,005 hectopascals | 1,006 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 | 1,008 hectopascals | 1,008 hectopascals | 1,008 hectopascals | 1,008 hectopascals |
| Dew point temperature | 12.8° Celsius | 13.8° Celsius | 13.9° Celsius | 13.3° Celsius | 13.0° Celsius | 12.2° Celsius | 12.2° Celsius | 11.4° Celsius | 12.3° Celsius | 12.3° Celsius | 12.4° Celsius | 12.9° Celsius | 12.9° Celsius | 12.5° Celsius | 12.2° Celsius |
Tuesday (2 September 2025)
| 00:00 | 01:00 | 02:00 | 03:00 | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Weather |
|||||||||||||||||||||||
| Weather Symbol |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Temperature |
15.6° Celsius
|
15.4° Celsius
|
15.6° Celsius
|
15.5° Celsius
|
14.8° Celsius
|
15.0° Celsius
|
15.3° Celsius
|
15.4° Celsius
|
16.9° Celsius
|
17.8° Celsius
|
17.9° Celsius
|
18.1° Celsius
|
18.8° Celsius
|
19.4° Celsius
|
18.4° Celsius
|
17.7° Celsius
|
17.2° Celsius
|
16.9° Celsius
|
16.6° Celsius
|
16.7° Celsius
|
16.4° Celsius
|
16.6° Celsius
|
15.9° Celsius
|
| Wind Direction and speed |
SW
7
|
SW
5
|
SSW
7
|
SSW
6
|
S
7
|
S
11
|
S
10
|
SSE
9
|
SSW
7
|
SW
8
|
SW
8
|
WSW
8
|
SW
9
|
SW
10
|
SW
11
|
WSW
10
|
W
10
|
W
10
|
WSW
9
|
WSW
8
|
SW
8
|
SW
9
|
SSW
8
|
| Wind gust | No data | No data | No data | No data | No data | 15 knots | 15 knots | 15 knots | 14 knots | No data | No data | 13 knots | 14 knots | 14 knots | 15 knots | 16 knots | 15 knots | 15 knots | 13 knots | No data | 14 knots | No data | No data |
| Visibility | 21 nautical miles | 21 nautical miles | 21 nautical miles | 18 nautical miles | 6 nautical miles | 13 nautical miles | 6 nautical miles | 8 nautical miles | 16 nautical miles | 18 nautical miles | 8 nautical miles | 10 nautical miles | 18 nautical miles | 16 nautical miles | 16 nautical miles | 13 nautical miles | 18 nautical miles | 16 nautical miles | 18 nautical miles | 18 nautical miles | 18 nautical miles | 13 nautical miles | 8 nautical miles |
| Humidity | 82% | 83% | 82% | 84% | 93% | 94% | 93% | 96% | 89% | 89% | 90% | 84% | 79% | 77% | 81% | 87% | 81% | 84% | 90% | 90% | 93% | 91% | 93% |
| Pressure | 1,008 hectopascals | 1,007 hectopascals | 1,007 hectopascals | 1,005 hectopascals | 1,004 hectopascals | 1,002 hectopascals | 1,002 hectopascals | 1,001 hectopascals | 1,001 hectopascals | 1,001 hectopascals | 1,002 hectopascals | 1,002 hectopascals | 1,002 hectopascals | 1,002 hectopascals | 1,001 hectopascals | 1,002 hectopascals | 1,003 hectopascals | 1,003 hectopascals | 1,004 hectopascals | 1,004 hectopascals | 1,004 hectopascals | 1,004 hectopascals | 1,002 hectopascals |
| Dew point temperature | 12.5° Celsius | 12.6° Celsius | 12.6° Celsius | 12.8° Celsius | 13.6° Celsius | 14.1° Celsius | 14.1° Celsius | 14.7° Celsius | 15.1° Celsius | 15.9° Celsius | 16.2° Celsius | 15.3° Celsius | 15.0° Celsius | 15.3° Celsius | 15.1° Celsius | 15.5° Celsius | 14.0° Celsius | 14.1° Celsius | 14.9° Celsius | 15.1° Celsius | 15.3° Celsius | 15.1° Celsius | 14.8° Celsius |
Wednesday (3 September 2025)
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | |
|---|---|---|---|---|---|---|---|---|---|
Weather |
|||||||||
| Weather Symbol |
|
|
|
|
|
|
|
|
|
| Temperature |
16.9° Celsius
|
17.8° Celsius
|
18.2° Celsius
|
18.0° Celsius
|
18.4° Celsius
|
17.9° Celsius
|
18.2° Celsius
|
17.7° Celsius
|
17.3° Celsius
|
| Wind Direction and speed |
S
9
|
SSW
10
|
SSW
10
|
SSW
9
|
SW
11
|
SSW
10
|
SSW
9
|
SW
11
|
SSW
8
|
| Wind gust | 14 knots | No data | No data | No data | 17 knots | 21 knots | 15 knots | 16 knots | 15 knots |
| Visibility | 8 nautical miles | 13 nautical miles | 13 nautical miles | 18 nautical miles | 18 nautical miles | 13 nautical miles | 8 nautical miles | 3 nautical miles | 5 nautical miles |
| Humidity | 93% | 93% | 92% | 94% | 89% | 93% | 89% | 93% | 94% |
| Pressure | 1,001 hectopascals | 1,000 hectopascals | 1,000 hectopascals | 1,000 hectopascals | 999 hectopascals | 999 hectopascals | 998 hectopascals | 999 hectopascals | 998 hectopascals |
| Dew point temperature | 15.8° Celsius | 16.6° Celsius | 16.9° Celsius | 17.0° Celsius | 16.5° Celsius | 16.8° Celsius | 16.4° Celsius | 16.5° Celsius | 16.4° Celsius |
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.