Boston in August
Find out everything about the water temperature in Boston 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:
82.8 °F
Average:
85.3 °F
Maximum:
87.2 °F
Sea water temperature in Boston in August
In the city of Boston, the month of August is a great time for swimming. The minimum recorded temperature during this month was 82.8°F on August 7, 2015, with an average temperature being 85.3°F and a maximum temperature reaching 87.2°F on August 18, 2024.
| Date | 10 years average | 2024 | 2023 |
|---|---|---|---|
| Aug 1 | 85.3°F | 86.1°F | 85.6°F |
| Aug 2 | 85.3°F | 85.8°F | 85.8°F |
| Aug 3 | 85.2°F | 85.7°F | 85.9°F |
| Aug 4 | 85.1°F | 85.4°F | 86.3°F |
| Aug 5 | 85.0°F | 85.3°F | 86.2°F |
| Aug 6 | 84.9°F | 86.0°F | 86.4°F |
| Aug 7 | 85.1°F | 86.0°F | 86.8°F |
| Aug 8 | 85.2°F | 85.9°F | 86.5°F |
| Aug 9 | 85.1°F | 85.5°F | 86.3°F |
| Aug 10 | 85.1°F | 85.4°F | 86.1°F |
| Aug 11 | 85.3°F | 85.6°F | 86.0°F |
| Aug 12 | 85.4°F | 85.7°F | 86.0°F |
| Aug 13 | 85.3°F | 85.7°F | 85.8°F |
| Aug 14 | 85.3°F | 85.7°F | 85.7°F |
| Aug 15 | 85.3°F | 85.6°F | 85.6°F |
| Aug 16 | 85.4°F | 87.1°F | 85.5°F |
| Aug 17 | 85.4°F | 87.1°F | 85.5°F |
| Aug 18 | 85.3°F | 87.2°F | 85.3°F |
| Aug 19 | 85.2°F | 86.5°F | 85.1°F |
| Aug 20 | 85.4°F | 87.1°F | 85.5°F |
| Aug 21 | 85.2°F | 86.5°F | 85.3°F |
| Aug 22 | 85.2°F | 86.5°F | 85.1°F |
| Aug 23 | 85.2°F | 86.1°F | 85.1°F |
| Aug 24 | 85.1°F | 85.9°F | 85.2°F |
| Aug 25 | 85.1°F | 85.9°F | 84.9°F |
| Aug 26 | 85.2°F | 85.8°F | 85.1°F |
| Aug 27 | 85.4°F | 85.8°F | 86.0°F |
| Aug 28 | 85.6°F | 86.5°F | 85.9°F |
| Aug 29 | 85.6°F | 86.6°F | 85.8°F |
| Aug 30 | 85.6°F | 86.5°F | 85.7°F |
| Aug 31 | 85.6°F | 86.4°F | 86.7°F |
In Boston, the water temperature is comfortable for swimming all year round.
The warmest water in Boston was recorded on October 19, 2024, reaching a 87.6°F. While the coldest temperature occurred on February 10, 2019, dipping to 79.9°F. The average readings by season are 82.8°F in Winter, 83.9°F in Spring, 85.5°F in Summer, and 85.1°F in Autumn.
August's temperature is a dip compared to warmer July at 85.4°F and September at 85.4°F.
