Coast and Sea
Marine Observations weather
Marine observations - Belfast International Airport
- Location 54.664, -6.224
- Altitude 63 m above mean sea level
Monday (14 September 2026)
| 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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| Temperature |
19.1° Celsius
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18.3° Celsius
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18.3° Celsius
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18.1° Celsius
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18.0° Celsius
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18.3° Celsius
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18.6° Celsius
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18.1° Celsius
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17.3° Celsius
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17.7° Celsius
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| Wind Direction and speed |
S 8
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SSW 8
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S 9
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S 10
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S 10
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S 11
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S 9
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SSW 11
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S 5
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SSW 8
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| Wind gust | 12 knots | 16 knots | 14 knots | 15 knots | 18 knots | 19 knots | 17 knots | 20 knots | 15 knots | 17 knots |
| Visibility | 28.5 nautical miles | 8.1 nautical miles | 8.9 nautical miles | 5.3 nautical miles | 21.4 nautical miles | 19.8 nautical miles | 1.2 nautical miles | 22.3 nautical miles | 20.7 nautical miles | 13.1 nautical miles |
| Humidity | 79% | 90% | 93% | 94% | 95% | 93% | 94% | 96% | 96% | 94% |
| Pressure | 1014 hectopascals | 1014 hectopascals | 1012 hectopascals | 1012 hectopascals | 1011 hectopascals | 1011 hectopascals | 1010 hectopascals | 1010 hectopascals | 1009 hectopascals | 1009 hectopascals |
| Dew point temperature | 15.3° Celsius | 16.7° Celsius | 17.1° Celsius | 17.1° Celsius | 17.2° Celsius | 17.1° Celsius | 17.6° Celsius | 17.4° Celsius | 16.5° Celsius | 16.8° Celsius |
Tuesday (15 September 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 |
17.3° Celsius
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15.7° Celsius
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14.7° Celsius
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13.8° Celsius
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13.3° Celsius
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13.2° Celsius
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12.6° Celsius
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12.8° Celsius
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13.6° Celsius
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13.6° Celsius
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14.7° Celsius
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16.1° Celsius
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16.3° Celsius
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15.0° Celsius
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16.5° Celsius
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16.3° Celsius
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15.9° Celsius
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15.5° Celsius
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14.7° Celsius
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14.4° Celsius
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14.0° Celsius
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13.8° Celsius
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13.4° Celsius
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13.0° Celsius
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| Wind Direction and speed |
S 8
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WSW 15
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W 13
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W 10
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W 10
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WSW 11
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SW 10
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SW 9
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WSW 13
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WSW 12
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WSW 12
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WSW 9
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W 11
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WNW 12
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WNW 13
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WNW 12
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W 14
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NW 9
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NW 10
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WNW 9
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WNW 9
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WNW 9
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WNW 8
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WNW 10
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| Wind gust | 14 knots | 23 knots | 22 knots | 22 knots | 17 knots | 19 knots | 15 knots | 15 knots | 18 knots | 21 knots | 21 knots | 17 knots | 20 knots | 21 knots | 21 knots | 20 knots | 22 knots | 21 knots | 18 knots | 16 knots | 17 knots | 17 knots | 16 knots | 18 knots |
| Visibility | 3.5 nautical miles | 35.1 nautical miles | 14.9 nautical miles | 37.9 nautical miles | 18.4 nautical miles | 17.7 nautical miles | 13.1 nautical miles | 12.5 nautical miles | 16.6 nautical miles | 15.6 nautical miles | 19.6 nautical miles | 26.9 nautical miles | 28.6 nautical miles | 25.5 nautical miles | 27.3 nautical miles | 29.3 nautical miles | 37.2 nautical miles | 29.2 nautical miles | 29.0 nautical miles | 29.6 nautical miles | 29.4 nautical miles | 29.6 nautical miles | 20.3 nautical miles | 26.7 nautical miles |
| Humidity | 95% | 90% | 92% | 90% | 91% | 89% | 94% | 94% | 87% | 89% | 83% | 77% | 76% | 86% | 74% | 74% | 75% | 79% | 73% | 77% | 83% | 85% | 86% | 86% |
| Pressure | 1008 hectopascals | 1009 hectopascals | 1010 hectopascals | 1010 hectopascals | 1010 hectopascals | 1011 hectopascals | 1011 hectopascals | 1011 hectopascals | 1012 hectopascals | 1012 hectopascals | 1012 hectopascals | 1012 hectopascals | 1013 hectopascals | 1014 hectopascals | 1015 hectopascals | 1015 hectopascals | 1016 hectopascals | 1016 hectopascals | 1017 hectopascals | 1017 hectopascals | 1018 hectopascals | 1019 hectopascals | 1019 hectopascals | 1019 hectopascals |
| Dew point temperature | 16.6° Celsius | 14.1° Celsius | 13.4° Celsius | 12.3° Celsius | 11.8° Celsius | 11.5° Celsius | 11.6° Celsius | 11.9° Celsius | 11.5° Celsius | 11.9° Celsius | 11.9° Celsius | 12.0° Celsius | 12.1° Celsius | 12.7° Celsius | 11.8° Celsius | 11.8° Celsius | 11.5° Celsius | 11.8° Celsius | 10.0° Celsius | 10.4° Celsius | 11.0° Celsius | 11.2° Celsius | 11.1° Celsius | 10.8° Celsius |
Wednesday (16 September 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 | |
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Weather
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| Weather Symbol | |
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| Temperature |
12.5° Celsius
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12.8° Celsius
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12.4° Celsius
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12.6° Celsius
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12.4° Celsius
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12.4° Celsius
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11.9° Celsius
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12.5° Celsius
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12.6° Celsius
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13.0° Celsius
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13.9° Celsius
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14.6° Celsius
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14.8° Celsius
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14.5° Celsius
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| Wind Direction and speed |
WNW 10
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WNW 8
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WNW 9
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WNW 11
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WNW 9
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WNW 11
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W 8
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W 9
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W 7
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W 9
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W 9
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W 10
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W 9
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SW 11
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| Wind gust | 19 knots | 17 knots | 17 knots | 16 knots | 16 knots | 18 knots | 14 knots | 15 knots | 15 knots | 15 knots | 15 knots | 16 knots | 16 knots | 15 knots |
| Visibility | 24.9 nautical miles | 26.8 nautical miles | 24.7 nautical miles | 31.4 nautical miles | 11.4 nautical miles | 19.2 nautical miles | 32.7 nautical miles | 32.4 nautical miles | 37.8 nautical miles | 32.8 nautical miles | 28.5 nautical miles | 27.3 nautical miles | 24.4 nautical miles | 2.9 nautical miles |
| Humidity | 89% | 86% | 90% | 87% | 89% | 88% | 90% | 85% | 85% | 84% | 78% | 70% | 72% | 75% |
| Pressure | 1019 hectopascals | 1019 hectopascals | 1020 hectopascals | 1020 hectopascals | 1020 hectopascals | 1019 hectopascals | 1020 hectopascals | 1020 hectopascals | 1020 hectopascals | 1020 hectopascals | 1019 hectopascals | 1019 hectopascals | 1018 hectopascals | 1018 hectopascals |
| Dew point temperature | 10.8° Celsius | 10.6° Celsius | 10.7° Celsius | 10.4° Celsius | 10.5° Celsius | 10.4° Celsius | 10.4° Celsius | 10.0° Celsius | 10.1° Celsius | 10.3° Celsius | 10.1° Celsius | 9.2° Celsius | 9.7° Celsius | 10.2° Celsius |
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