August Weather in Brookline, United States

Last updated: June 24, 2025

In Brookline, United States, the average temperature in August is a pleasant 22°C (72°F). Temperatures can fluctuate, with a minimum of 8°C (48°F) and a maximum reaching up to 35°C (95°F). Expect around 97 mm (3.8 in) of precipitation over 12 days, accompanied by an average humidity level of 66%.

August Temperature in Brookline

In August in Brookline, the average temperature is 22°C (72°F), with maximums reaching 35°C (95°F) and minimums dropping as low as 8°C (48°F). This makes it an ideal time for travelers who enjoy mild and warm weather.

August Weather in Brookline: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Brookline, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brookline, August typically has an average temperature of 22°C (72°F), with highs reaching up to 35°C (95°F) and lows dropping to around 8°C (48°F).

Data source: Temperature data for Brookline generated using information from the Copernicus Climate Change Service.

August Precipitation in Brookline

In Brookline in August, the precipitation amount is 97 mm (3.8 in) spread over 12 days.

August Precipitation Trends in Brookline

The chart displays monthly precipitation patterns in Brookline, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Brookline, August typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Brookline

In Brookline in August, humidity is 66%. With an average temperature of 22°C (72°F), this humidity feels like walking through a warm, enveloping blanket, making it essential to stay hydrated while exploring the sights and taking regular breaks in shaded areas.

August Average Humidity in Brookline

This chart illustrates the average monthly humidity levels in Brookline, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Brookline is approximately 66%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Brookline

In Brookline in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Brookline.

Maximum UV Index Levels in Brookline for August

The chart shows the monthly maximum UV Index (UVI) for Brookline in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Brookline typically reaches 9, which falls under the very high exposure category.

Data source: Brookline August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How August Weather in Brookline Compares to Other Months

Weather in Brookline varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Brookline, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Brookline, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	75 mm (2.9 inches)	86%	moderate
February Weather	-1°C (30°F)	88 mm (3.5 inches)	84%	moderate
March Weather	2°C (35°F)	83 mm (3.3 inches)	82%	moderate
April Weather	8°C (47°F)	132 mm (5.2 inches)	80%	very high
May Weather	14°C (58°F)	86 mm (3.4 inches)	72%	very high
June Weather	20°C (68°F)	89 mm (3.5 inches)	72%	very high
July Weather	23°C (73°F)	150 mm (5.9 inches)	67%	very high
August Weather	22°C (72°F)	97 mm (3.8 inches)	66%	very high
September Weather	18°C (65°F)	85 mm (3.3 inches)	71%	high
October Weather	12°C (54°F)	134 mm (5.3 inches)	78%	high
November Weather	4°C (40°F)	103 mm (4.0 inches)	84%	moderate
December Weather	-1°C (31°F)	124 mm (4.9 inches)	81%	low