Boston (MA)
August
Weather in Boston, Massachusetts for August 2026
Your guide to Boston weather in August - trends and predictions
In general, the average temperature in Boston at the beginning of August is 27.3 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 26.3 °C by the end of August.
Boston experiences heavy rainfall in August, with over 20 rainy days and an average total precipitation 92.7 mm.
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Temperatures
Rain 🌧️
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5
Dry days
26
Rainy days
0
Snow days
26°/18°
Temperatures
15 km/h
Avg max wind
71 %
Avg humidity
Boston Weather August
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Temperatures trend during August in Boston
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August weather in Boston day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Partly cloudy | 27° /17° | 1 mm | 6 | |
| Aug. 2 |  Patchy rain possible | 28° /17° | 1.8 mm | 6 | |
| Aug. 3 |  Cloudy | 28° /17° | 1.4 mm | 7 | |
| Aug. 4 |  Moderate or heavy rain shower | 29° /18° | 8.1 mm | 7 | |
| Aug. 5 | Moderate or heavy rain shower | 27° /18° | 10.5 mm | 6 | |
| Aug. 6 | Cloudy | 26° /17° | 2.5 mm | 6 | |
| Aug. 7 | Patchy rain possible | 26° /18° | 2.4 mm | 6 | |
| Aug. 8 | Patchy rain possible | 26° /18° | 2.6 mm | 6 | |
| Aug. 9 | Patchy rain possible | 26° /18° | 2 mm | 6 | |
| Aug. 10 | Patchy rain possible | 27° /18° | 3.5 mm | 6 | |
| Aug. 11 | Cloudy | 28° /18° | 6.7 mm | 6 | |
| Aug. 12 | Partly cloudy | 29° /19° | 0 mm | 6 | |
| Aug. 13 |  Overcast | 28° /18° | 1.7 mm | 6 | |
| Aug. 14 | Moderate or heavy rain shower | 28° /18° | 0.8 mm | 7 | |
| Aug. 15 | Cloudy | 25° /17° | 7 mm | 6 | |
| Aug. 16 | Cloudy | 24° /17° | 0.2 mm | 6 | |
| Aug. 17 | Overcast | 27° /17° | 1.4 mm | 6 | |
| Aug. 18 | Patchy rain possible | 25° /18° | 2.3 mm | 6 | |
| Aug. 19 | Moderate or heavy rain shower | 25° /17° | 3.6 mm | 6 | |
| Aug. 20 | Overcast | 26° /17° | 1.2 mm | 6 | |
| Aug. 21 | Patchy rain possible | 26° /17° | 4.8 mm | 6 | |
| Aug. 22 | Moderate or heavy rain shower | 23° /16° | 2.6 mm | 5 | |
| Aug. 23 |  Sunny | 26° /16° | 1.6 mm | 6 | |
| Aug. 24 | Overcast | 28° /17° | 0.6 mm | 6 | |
| Aug. 25 | Sunny | 27° /19° | 6.6 mm | 7 | |
| Aug. 26 | Cloudy | 30° /18° | 9.1 mm | 7 | |
| Aug. 27 | Patchy rain possible | 25° /17° | 0.2 mm | 6 | |
| Aug. 28 | Overcast | 24° /16° | 1 mm | 6 | |
| Aug. 29 | Cloudy | 25° /17° | 2.3 mm | 5 | |
| Aug. 30 | Moderate rain at times | 27° /18° | 1.5 mm | 6 | |
| Aug. 31 | Sunny | 26° /16° | 1.8 mm | 6 | |
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Important Notice
Our weather forecast for Boston in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Boston forecast closer to your planned date for the most up-to-date weather information.
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Boston in August - FAQ
What are the expected maximum and minimum temperatures in Boston during August?
During August, expect a variety of temperatures with highs around 26° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in Boston during August?
Moderate rainfall is anticipated in Boston during August, with a total of 92.7 mm spread over approximately 26 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Boston during August?
The average wind speed in Boston during August is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Boston
Explore the daily rainfall trends and prepare for Bostons August weather 💧
Typically, Boston has 26 rainy days in August with a total of 92.7 mm of rainfall.
UV exposure in Boston during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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