August Weather in Dorchester, United States

Last updated: June 24, 2025

In August, the average temperature in Dorchester, United States is a pleasant 24°C (76°F). Expect a minimum of 11°C (51°F) and a maximum of 36°C (97°F). With an average humidity of 80% and about 82 mm (3.2 in) of precipitation spread over 9 days, it's a month that balances warmth with a hint of moisture. Be prepared for varied weather as you explore this vibrant destination!

August Temperature in Dorchester

In August in Dorchester, the average temperature is 24°C (76°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 11°C (51°F). It's a great time for travelers to enjoy a mix of warm days and cooler nights while exploring all that Dorchester has to offer.

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

The chart illustrates August temperature patterns in Dorchester, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dorchester, August typically has an average temperature of 24°C (76°F), with highs reaching up to 36°C (97°F) and lows dropping to around 11°C (51°F).

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

August Precipitation in Dorchester

In Dorchester in August, the total precipitation amount is 82 mm (3.2 in), occurring over a span of 9 days.

August Precipitation Trends in Dorchester

The chart displays monthly precipitation patterns in Dorchester, 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 Dorchester, August typically receives around 82 mm (3.2 inches) of precipitation spread over approximately 9 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 Dorchester

In Dorchester in August humidity is 80%. With an average temperature of 24°C (76°F), this humidity feels like a warm, sticky embrace that can make exploring outdoors quite draining, so it's essential to stay hydrated and take breaks in the shade while traveling.

August Average Humidity in Dorchester

This chart illustrates the average monthly humidity levels in Dorchester, 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 Dorchester is approximately 80%, 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 Dorchester

In Dorchester 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 Dorchester.

Maximum UV Index Levels in Dorchester for August

The chart shows the monthly maximum UV Index (UVI) for Dorchester 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 Dorchester typically reaches 9, which falls under the very high exposure category.

Data source: Dorchester 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 Dorchester Compares to Other Months

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

This table compares monthly weather conditions in Dorchester, 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)	32 mm (1.3 inches)	76%	moderate
February Weather	-3°C (27°F)	26 mm (1.0 inches)	80%	moderate
March Weather	6°C (42°F)	95 mm (3.7 inches)	73%	high
April Weather	11°C (51°F)	47 mm (1.8 inches)	74%	very high
May Weather	17°C (63°F)	145 mm (5.7 inches)	78%	very high
June Weather	25°C (77°F)	97 mm (3.8 inches)	82%	extreme
July Weather	26°C (79°F)	64 mm (2.5 inches)	83%	very high
August Weather	24°C (76°F)	82 mm (3.2 inches)	80%	very high
September Weather	21°C (70°F)	81 mm (3.2 inches)	75%	very high
October Weather	12°C (53°F)	110 mm (4.3 inches)	75%	high
November Weather	5°C (41°F)	27 mm (1.1 inches)	82%	moderate
December Weather	0°C (33°F)	40 mm (1.6 inches)	83%	moderate