Coast and Sea
Marine Observations weather
Marine observations - Belfast International Airport
- Location 54.664, -6.224
- Altitude 63 m above mean sea level
Wednesday (19 August 2026)
| 20:00 | 21:00 | 22:00 | 23:00 | |
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Weather
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| Weather Symbol |  |
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| Temperature |
13.6° Celsius
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13.2° Celsius
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12.8° Celsius
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12.4° Celsius
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| Wind Direction and speed |
N No data
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N No data
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N 3
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N 3
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| Wind gust | 4 knots | 3 knots | 4 knots | 4 knots |
| Visibility | 10.1 nautical miles | 9.0 nautical miles | 6.2 nautical miles | 3.7 nautical miles |
| Humidity | 94% | 96% | 97% | 97% |
| Pressure | 1001 hectopascals | 1002 hectopascals | 1002 hectopascals | 1003 hectopascals |
| Dew point temperature | 12.7° Celsius | 12.6° Celsius | 12.2° Celsius | 12.0° Celsius |
Thursday (20 August 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 | |
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Weather
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| Weather Symbol |  |
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| Temperature |
11.6° Celsius
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12.2° Celsius
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12.2° Celsius
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11.8° Celsius
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12.1° Celsius
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12.4° Celsius
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12.0° Celsius
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11.7° Celsius
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12.2° Celsius
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13.1° Celsius
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14.5° Celsius
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13.3° Celsius
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13.3° Celsius
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14.8° Celsius
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14.8° Celsius
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14.9° Celsius
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14.7° Celsius
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14.2° Celsius
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13.5° Celsius
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12.7° Celsius
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11.8° Celsius
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11.0° Celsius
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11.3° Celsius
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9.7° Celsius
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| Wind Direction and speed |
N 4
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N 5
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NW 2
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N No data
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N 4
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NNE 9
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NNE 10
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N 8
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N 7
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N 8
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NNW 9
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N 8
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N 7
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NNW 9
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NNW 12
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NNW 12
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NW 10
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NNW 12
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NNW 13
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NNW 10
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N 7
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NNW 5
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NNW 6
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NW 3
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| Wind gust | 7 knots | 7 knots | 6 knots | 5 knots | 6 knots | 16 knots | 14 knots | 12 knots | 11 knots | 11 knots | 14 knots | 16 knots | 17 knots | 15 knots | 18 knots | 21 knots | 19 knots | 19 knots | 21 knots | 19 knots | 16 knots | 13 knots | 10 knots | 9 knots |
| Visibility | 4.8 nautical miles | 7.0 nautical miles | 3.6 nautical miles | 2.6 nautical miles | 5.1 nautical miles | 10.0 nautical miles | 16.6 nautical miles | 14.8 nautical miles | 13.2 nautical miles | 21.2 nautical miles | 22.0 nautical miles | 22.9 nautical miles | 28.9 nautical miles | 24.0 nautical miles | 23.7 nautical miles | 22.1 nautical miles | 21.6 nautical miles | 23.4 nautical miles | 18.6 nautical miles | 18.2 nautical miles | 17.1 nautical miles | 17.3 nautical miles | 7.4 nautical miles | 8.9 nautical miles |
| Humidity | 98% | 98% | 98% | 98% | 98% | 98% | 90% | 91% | 92% | 87% | 83% | 81% | 81% | 70% | 58% | 60% | 66% | 66% | 71% | 75% | 83% | 86% | 87% | 92% |
| Pressure | 1003 hectopascals | 1003 hectopascals | 1004 hectopascals | 1004 hectopascals | 1004 hectopascals | 1005 hectopascals | 1006 hectopascals | 1007 hectopascals | 1008 hectopascals | 1008 hectopascals | 1009 hectopascals | 1010 hectopascals | 1011 hectopascals | 1011 hectopascals | 1011 hectopascals | 1012 hectopascals | 1012 hectopascals | 1012 hectopascals | 1012 hectopascals | 1013 hectopascals | 1013 hectopascals | 1014 hectopascals | 1014 hectopascals | 1015 hectopascals |
| Dew point temperature | 11.2° Celsius | 11.9° Celsius | 11.9° Celsius | 11.5° Celsius | 11.9° Celsius | 12.1° Celsius | 10.4° Celsius | 10.3° Celsius | 10.9° Celsius | 11.0° Celsius | 11.8° Celsius | 10.1° Celsius | 10.1° Celsius | 9.3° Celsius | 6.7° Celsius | 7.3° Celsius | 8.5° Celsius | 7.9° Celsius | 8.3° Celsius | 8.4° Celsius | 8.9° Celsius | 8.8° Celsius | 9.2° Celsius | 8.5° Celsius |
Friday (21 August 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 | |
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Weather
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| Weather Symbol | |
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| Temperature |
9.5° Celsius
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9.1° Celsius
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8.6° Celsius
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8.1° Celsius
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7.7° Celsius
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7.4° Celsius
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8.1° Celsius
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10.1° Celsius
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11.7° Celsius
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14.0° Celsius
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14.6° Celsius
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16.2° Celsius
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16.9° Celsius
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17.0° Celsius
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17.5° Celsius
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16.4° Celsius
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14.7° Celsius
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14.5° Celsius
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13.8° Celsius
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13.1° Celsius
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| Wind Direction and speed |
NW 3
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N 3
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WNW 1
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N 1
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N 2
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NNW 2
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N 5
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NNE 1
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N 5
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N 8
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N 8
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NNW 9
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NNW 9
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NNW 11
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N 10
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N 13
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NNW 14
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NNW 11
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N 10
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N 11
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| Wind gust | 6 knots | 6 knots | 4 knots | 4 knots | 3 knots | 3 knots | 6 knots | 6 knots | 8 knots | 16 knots | 16 knots | 14 knots | 17 knots | 17 knots | 19 knots | 20 knots | 20 knots | 18 knots | 15 knots | 18 knots |
| Visibility | 8.8 nautical miles | 10.5 nautical miles | 8.8 nautical miles | 9.1 nautical miles | 8.6 nautical miles | 7.8 nautical miles | 7.8 nautical miles | 3.8 nautical miles | 4.3 nautical miles | 4.1 nautical miles | 18.7 nautical miles | 17.3 nautical miles | 16.0 nautical miles | 18.4 nautical miles | 14.1 nautical miles | 15.9 nautical miles | 14.4 nautical miles | 14.9 nautical miles | 14.3 nautical miles | 13.7 nautical miles |
| Humidity | 93% | 95% | 95% | 96% | 96% | 97% | 98% | 98% | 90% | 76% | 69% | 68% | 65% | 63% | 62% | 61% | 69% | 74% | 74% | 68% |
| Pressure | 1015 hectopascals | 1015 hectopascals | 1015 hectopascals | 1015 hectopascals | 1015 hectopascals | 1015 hectopascals | 1016 hectopascals | 1016 hectopascals | 1017 hectopascals | 1017 hectopascals | 1017 hectopascals | 1018 hectopascals | 1018 hectopascals | 1018 hectopascals | 1018 hectopascals | 1019 hectopascals | 1019 hectopascals | 1020 hectopascals | 1020 hectopascals | 1021 hectopascals |
| Dew point temperature | 8.4° Celsius | 8.3° Celsius | 7.9° Celsius | 7.5° Celsius | 7.2° Celsius | 7.0° Celsius | 7.8° Celsius | 9.8° Celsius | 10.0° Celsius | 9.9° Celsius | 8.9° Celsius | 10.3° Celsius | 10.2° Celsius | 9.9° Celsius | 10.2° Celsius | 9.0° Celsius | 9.0° Celsius | 9.9° Celsius | 9.2° Celsius | 7.3° Celsius |
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