Boston
August
Weather in Boston 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 21.7 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 22.3 °C by the end of August.
Boston experiences moderate rainfall in August, with an average of 8 rainy days and a total precipitation of 19.8 mm.
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Temperatures
Rain 🌧️
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23
Dry days
8
Rainy days
0
Snow days
22°/13°
Temperatures
25 km/h
Avg max wind
63 %
Avg humidity
Boston Weather August
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Temperatures trend during August in Boston
See the weather trend as well as the moving average line
August weather in Boston day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Light rain shower | 19° /12° | 1.9 mm | 4 | |
| 2 Aug. |  Cloudy | 22° /13° | 0 mm | 5 | |
| 3 Aug. | Light rain shower | 23° /12° | 2.1 mm | 5 | |
| 4 Aug. |  Light drizzle | 21° /13° | 1 mm | 5 | |
| 5 Aug. | Patchy rain possible | 20° /11° | 0.1 mm | 5 | |
| 6 Aug. |  Partly cloudy | 24° /10° | 0 mm | 6 | |
| 7 Aug. | Patchy rain possible | 23° /13° | 0.1 mm | 5 | |
| 8 Aug. |  Overcast | 25° /12° | 0 mm | 6 | |
| 9 Aug. | Cloudy | 24° /11° | 0 mm | 5 | |
| 10 Aug. | Partly cloudy | 25° /12° | 0 mm | 7 | |
| 11 Aug. | Partly cloudy | 28° /15° | 0.1 mm | 7 | |
| 12 Aug. |  Sunny | 25° /17° | 0 mm | 7 | |
| 13 Aug. | Sunny | 27° /16° | 0.1 mm | 7 | |
| 14 Aug. | Cloudy | 28° /16° | 0.1 mm | 6 | |
| 15 Aug. | Sunny | 25° /15° | 0 mm | 7 | |
| 16 Aug. | Partly cloudy | 21° /13° | 0 mm | 6 | |
| 17 Aug. | Partly cloudy | 21° /12° | 0 mm | 6 | |
| 18 Aug. | Patchy rain possible | 20° /14° | 0 mm | 5 | |
| 19 Aug. | Partly cloudy | 21° /12° | 1.1 mm | 5 | |
| 20 Aug. | Patchy rain possible | 20° /13° | 0.1 mm | 5 | |
| 21 Aug. | Overcast | 19° /11° | 0 mm | 5 | |
| 22 Aug. |  Moderate or heavy rain shower | 22° /11° | 3 mm | 6 | |
| 23 Aug. | Moderate rain at times | 20° /13° | 1.8 mm | 5 | |
| 24 Aug. | Moderate or heavy rain shower | 21° /12° | 6 mm | 5 | |
| 25 Aug. | Overcast | 24° /11° | 0 mm | 6 | |
| 26 Aug. | Overcast | 24° /13° | 0.1 mm | 6 | |
| 27 Aug. | Overcast | 23° /12° | 0.2 mm | 5 | |
| 28 Aug. | Patchy rain possible | 23° /13° | 0.4 mm | 5 | |
| 29 Aug. | Partly cloudy | 21° /12° | 0.6 mm | 6 | |
| 30 Aug. | Overcast | 21° /10° | 0.9 mm | 5 | |
| 31 Aug. | Partly cloudy | 20° /12° | 0 mm | 5 | |
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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?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Boston during August?
Expect minimal rainfall in Boston during August, with a total of 19.8 mm over approximately 8 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Boston during August?
The average wind speed in Boston during August is 25 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 8 rainy days in August with a total of 19.8 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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