August Weather in Cohasset, United States

Last updated: June 24, 2025

In Cohasset, United States, the average temperature in August hovers around 26°C (78°F), offering a comfortable climate. Expect a refreshing minimum of 12°C (54°F) and the occasional peak at a warm 40°C (104°F). Precipitation is minimal at just 4 mm (0.2 in) throughout the month, with conditions remaining dry on most days. With an average humidity of 36%, it’s a perfect time to enjoy the outdoors!

August Temperature in Cohasset

In August in Cohasset, the average temperature is 26°C (78°F). The maximum can reach 40°C (104°F), while the minimum can be as low as 12°C (54°F). This varied climate makes Cohasset an ideal destination for travelers seeking both warmth and cooler respite during their stay.

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

The chart illustrates August temperature patterns in Cohasset, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cohasset, August typically has an average temperature of 26°C (78°F), with highs reaching up to 40°C (104°F) and lows dropping to around 12°C (54°F).

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

August Precipitation in Cohasset

In Cohasset in August, the precipitation amount is 4 mm (0.2 in) over the course of 0 days.

August Precipitation Trends in Cohasset

The chart displays monthly precipitation patterns in Cohasset, 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 Cohasset, August typically receives around 4 mm (0.2 inches) of precipitation spread over approximately 0 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 Cohasset

In Cohasset in August, humidity is 36%. With an average temperature of 26°C (78°F), this humidity feels like a comfortable and refreshing breeze, making it ideal for traveling.

August Average Humidity in Cohasset

This chart illustrates the average monthly humidity levels in Cohasset, 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 Cohasset is approximately 36%, 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 Cohasset

In Cohasset in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Cohasset.

Maximum UV Index Levels in Cohasset for August

The chart shows the monthly maximum UV Index (UVI) for Cohasset 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 Cohasset typically reaches 10, which falls under the very high exposure category.

Data source: Cohasset 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 Cohasset Compares to Other Months

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

This table compares monthly weather conditions in Cohasset, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (44°F)	200 mm (7.9 inches)	84%	moderate
February Weather	7°C (46°F)	206 mm (8.1 inches)	84%	moderate
March Weather	9°C (48°F)	177 mm (7.0 inches)	83%	high
April Weather	13°C (56°F)	90 mm (3.6 inches)	81%	very high
May Weather	17°C (63°F)	62 mm (2.4 inches)	74%	extreme
June Weather	23°C (73°F)	15 mm (0.6 inches)	64%	extreme
July Weather	27°C (81°F)	2 mm (0.1 inches)	44%	extreme
August Weather	26°C (78°F)	4 mm (0.2 inches)	36%	very high
September Weather	21°C (71°F)	15 mm (0.6 inches)	44%	very high
October Weather	15°C (60°F)	58 mm (2.3 inches)	65%	high
November Weather	10°C (50°F)	107 mm (4.2 inches)	84%	moderate
December Weather	6°C (43°F)	154 mm (6.1 inches)	83%	moderate