Belfast in August
Find out everything about the water temperature in Belfast in August. Average, minimum and maximum recorded temperatures as well as daily temperature in August for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in August
Minimum:
59.0 °F
Average:
63.8 °F
Maximum:
70.5 °F
Sea water temperature in Belfast in August
In the city of Belfast, the month of August is somewhat too cool for swimming. The minimum recorded temperature during this month was 59.0°F on August 24, 2017, with an average temperature being 63.8°F and a maximum temperature reaching 70.5°F on August 13, 2020.
| Date | 10 years average | 2024 | 2023 |
|---|---|---|---|
| Aug 1 | 64.1°F | 63.5°F | 66.6°F |
| Aug 2 | 64.2°F | 66.5°F | 64.8°F |
| Aug 3 | 64.2°F | 65.9°F | 64.5°F |
| Aug 4 | 64.2°F | 68.1°F | 63.5°F |
| Aug 5 | 64.2°F | 67.6°F | 62.9°F |
| Aug 6 | 63.9°F | 66.5°F | 63.9°F |
| Aug 7 | 64.0°F | 65.5°F | 63.0°F |
| Aug 8 | 63.5°F | 63.3°F | 62.1°F |
| Aug 9 | 63.5°F | 63.0°F | 60.7°F |
| Aug 10 | 63.8°F | 63.3°F | 62.2°F |
| Aug 11 | 63.9°F | 63.4°F | 62.0°F |
| Aug 12 | 64.5°F | 63.9°F | 64.3°F |
| Aug 13 | 64.5°F | 64.0°F | 65.7°F |
| Aug 14 | 64.5°F | 64.0°F | 66.2°F |
| Aug 15 | 64.2°F | 63.7°F | 65.2°F |
| Aug 16 | 64.4°F | 64.8°F | 65.7°F |
| Aug 17 | 64.8°F | 67.9°F | 64.4°F |
| Aug 18 | 64.1°F | 65.8°F | 63.5°F |
| Aug 19 | 63.6°F | 65.2°F | 64.8°F |
| Aug 20 | 63.8°F | 63.8°F | 65.2°F |
| Aug 21 | 64.2°F | 64.1°F | 67.0°F |
| Aug 22 | 63.7°F | 63.6°F | 66.2°F |
| Aug 23 | 63.2°F | 60.8°F | 66.3°F |
| Aug 24 | 63.2°F | 62.7°F | 64.6°F |
| Aug 25 | 63.3°F | 63.2°F | 63.4°F |
| Aug 26 | 63.2°F | 62.3°F | 62.5°F |
| Aug 27 | 63.4°F | 64.1°F | 62.0°F |
| Aug 28 | 63.4°F | 63.1°F | 63.6°F |
| Aug 29 | 63.7°F | 64.5°F | 64.2°F |
| Aug 30 | 63.2°F | 63.6°F | 63.2°F |
| Aug 31 | 63.1°F | 62.7°F | 64.7°F |
In an average year, Belfast offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Belfast was recorded on July 30, 2023, reaching a 71.2°F. While the coldest temperature occurred on March 2, 2015, dipping to 32.0°F. The average readings by season are 39.8°F in Winter, 41.6°F in Spring, 60.3°F in Summer, and 55.6°F in Autumn.
In August, the temperature is higher than July's average of 61.7°F and September's average of 60.4°F.