Coast and sea
Marine observations - Belfast International Airport
- Location 54.664, -6.224
- Altitude 63 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 | |
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Weather |
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| Weather Symbol |
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| Temperature |
14.6° Celsius
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15.0° Celsius
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14.8° Celsius
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15.9° Celsius
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17.3° Celsius
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16.0° Celsius
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14.8° Celsius
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15.1° Celsius
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15.8° Celsius
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15.1° Celsius
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14.1° Celsius
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13.5° Celsius
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13.3° Celsius
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12.5° Celsius
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12.6° Celsius
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| Wind Direction and speed |
SSW
8
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SSW
8
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SSW
8
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SSW
8
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SSW
9
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SSW
8
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SW
7
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SW
8
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SW
6
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SW
7
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SW
6
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SW
5
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SSW
5
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SSW
5
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SSW
6
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| Wind gust | 12 knots | 13 knots | 15 knots | 13 knots | 13 knots | 13 knots | 13 knots | 12 knots | 11 knots | 11 knots | 10 knots | 11 knots | 9 knots | 8 knots | 8 knots |
| Visibility | 15 nautical miles | 14 nautical miles | 19 nautical miles | 23 nautical miles | 9 nautical miles | 25 nautical miles | 2 nautical miles | 2 nautical miles | 17 nautical miles | 16 nautical miles | 16 nautical miles | 15 nautical miles | 13 nautical miles | 13 nautical miles | 13 nautical miles |
| Humidity | 86% | 81% | 84% | 77% | 73% | 81% | 91% | 87% | 87% | 88% | 88% | 93% | 91% | 91% | 90% |
| Pressure | 992 hectopascals | 992 hectopascals | 993 hectopascals | 993 hectopascals | 993 hectopascals | 993 hectopascals | 994 hectopascals | 994 hectopascals | 995 hectopascals | 996 hectopascals | 996 hectopascals | 997 hectopascals | 997 hectopascals | 998 hectopascals | 998 hectopascals |
| Dew point temperature | 12.2° Celsius | 11.7° Celsius | 12.1° Celsius | 11.8° Celsius | 12.4° Celsius | 12.8° Celsius | 13.4° Celsius | 12.9° Celsius | 13.6° Celsius | 13.0° Celsius | 12.2° Celsius | 12.3° Celsius | 11.8° Celsius | 11.1° Celsius | 10.9° Celsius |
Tuesday (2 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 | |
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Weather |
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| Weather Symbol |
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| Temperature |
12.3° Celsius
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12.2° Celsius
|
12.0° Celsius
|
11.9° Celsius
|
11.2° Celsius
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11.2° Celsius
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11.1° Celsius
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11.6° Celsius
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12.7° Celsius
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13.2° Celsius
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14.9° Celsius
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15.5° Celsius
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17.1° Celsius
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17.7° Celsius
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17.7° Celsius
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18.1° Celsius
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16.8° Celsius
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14.7° Celsius
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14.3° Celsius
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14.5° Celsius
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14.4° Celsius
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13.8° Celsius
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13.7° Celsius
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12.9° Celsius
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| Wind Direction and speed |
SSW
4
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SSW
5
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SSW
5
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SSW
5
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S
3
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S
3
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S
2
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S
4
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SSW
5
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SSW
5
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SW
5
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SW
4
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SSW
5
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SSW
5
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SSW
4
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S
4
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S
5
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W
2
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N
1
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E
2
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ESE
3
|
ESE
2
|
ESE
2
|
ENE
2
|
| Wind gust | 8 knots | 8 knots | 8 knots | 8 knots | 5 knots | 5 knots | 5 knots | 6 knots | 7 knots | 8 knots | 8 knots | 8 knots | 7 knots | 7 knots | 7 knots | 7 knots | 7 knots | 7 knots | 3 knots | 4 knots | 4 knots | 4 knots | 3 knots | 2 knots |
| Visibility | 11 nautical miles | 13 nautical miles | 13 nautical miles | 13 nautical miles | 11 nautical miles | 13 nautical miles | 14 nautical miles | 15 nautical miles | 16 nautical miles | 17 nautical miles | 18 nautical miles | 17 nautical miles | 13 nautical miles | 20 nautical miles | 19 nautical miles | 18 nautical miles | 19 nautical miles | 16 nautical miles | 17 nautical miles | 16 nautical miles | 15 nautical miles | 16 nautical miles | 13 nautical miles | 14 nautical miles |
| Humidity | 91% | 91% | 91% | 92% | 92% | 92% | 93% | 92% | 87% | 82% | 78% | 73% | 63% | 55% | 56% | 51% | 56% | 77% | 79% | 78% | 77% | 80% | 85% | 87% |
| Pressure | 998 hectopascals | 998 hectopascals | 998 hectopascals | 998 hectopascals | 998 hectopascals | 998 hectopascals | 999 hectopascals | 998 hectopascals | 999 hectopascals | 999 hectopascals | 999 hectopascals | 999 hectopascals | 999 hectopascals | 998 hectopascals | 998 hectopascals | 998 hectopascals | 998 hectopascals | 998 hectopascals | 997 hectopascals | 997 hectopascals | 997 hectopascals | 997 hectopascals | 996 hectopascals | 996 hectopascals |
| Dew point temperature | 10.9° Celsius | 10.8° Celsius | 10.5° Celsius | 10.7° Celsius | 10.0° Celsius | 10.0° Celsius | 10.0° Celsius | 10.2° Celsius | 10.6° Celsius | 10.2° Celsius | 11.2° Celsius | 10.6° Celsius | 9.9° Celsius | 8.6° Celsius | 8.8° Celsius | 7.9° Celsius | 8.1° Celsius | 10.7° Celsius | 10.7° Celsius | 10.6° Celsius | 10.5° Celsius | 10.5° Celsius | 11.3° Celsius | 10.8° Celsius |
Wednesday (3 September 2025)
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | |
|---|---|---|---|---|---|---|---|---|---|
Weather |
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| Weather Symbol |
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| Temperature |
12.7° Celsius
|
13.7° Celsius
|
14.1° Celsius
|
14.3° Celsius
|
14.3° Celsius
|
14.0° Celsius
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13.7° Celsius
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13.5° Celsius
|
13.2° Celsius
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| Wind Direction and speed |
ENE
3
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E
3
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E
4
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E
4
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E
4
|
ESE
3
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ESE
3
|
E
2
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E
1
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| Wind gust | 3 knots | 4 knots | 6 knots | 5 knots | 5 knots | 5 knots | 4 knots | 4 knots | 4 knots |
| Visibility | 14 nautical miles | 14 nautical miles | 13 nautical miles | 13 nautical miles | 10 nautical miles | 13 nautical miles | 6 nautical miles | 3 nautical miles | 4 nautical miles |
| Humidity | 90% | 88% | 89% | 89% | 89% | 88% | 90% | 93% | 92% |
| Pressure | 995 hectopascals | 994 hectopascals | 994 hectopascals | 992 hectopascals | 992 hectopascals | 991 hectopascals | 990 hectopascals | 990 hectopascals | 990 hectopascals |
| Dew point temperature | 11.1° Celsius | 11.7° Celsius | 12.2° Celsius | 12.4° Celsius | 12.6° Celsius | 12.1° Celsius | 12.1° Celsius | 12.3° Celsius | 12.0° Celsius |
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Marine forecasts disclaimer
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