August Weather in Cohasset, United States

Last updated: June 24, 2025

In August, the average temperature in Cohasset, United States hovers around 21°C (71°F). Expect a comfortable range where the minimum can dip to 15°C (60°F), while maximum temperatures may reach up to 28°C (83°F). During this month, you can anticipate 66 mm (2.6 in) of precipitation spread over 9 days, combined with an average humidity level of 66%.

August Temperature in Cohasset

In August in Cohasset, the average temperature is 21°C (71°F). The maximum can reach 28°C (83°F), and the minimum can be as low as 15°C (60°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy the outdoors.

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 21°C (71°F), with highs reaching up to 28°C (83°F) and lows dropping to around 15°C (60°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 66 mm (2.6 in) over the course of 9 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 66 mm (2.6 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 Cohasset

In Cohasset in August, humidity is 66%. With an average temperature of 21°C (71°F), this humidity feels like a warm, sticky embrace that can make outdoor activities a bit taxing but also lends a vibrant energy to the atmosphere, ideal for those who appreciate a tropical ambiance while exploring.

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 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 Cohasset

In Cohasset 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 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 9, 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	1°C (34°F)	97 mm (3.8 inches)	86%	low
February Weather	2°C (35°F)	122 mm (4.8 inches)	84%	moderate
March Weather	3°C (38°F)	118 mm (4.7 inches)	82%	moderate
April Weather	7°C (45°F)	159 mm (6.3 inches)	80%	very high
May Weather	12°C (54°F)	110 mm (4.3 inches)	72%	very high
June Weather	17°C (63°F)	94 mm (3.7 inches)	72%	very high
July Weather	21°C (70°F)	104 mm (4.1 inches)	67%	very high
August Weather	21°C (71°F)	66 mm (2.6 inches)	66%	very high
September Weather	19°C (66°F)	107 mm (4.2 inches)	71%	high
October Weather	14°C (58°F)	182 mm (7.2 inches)	78%	high
November Weather	8°C (46°F)	115 mm (4.5 inches)	84%	moderate
December Weather	3°C (38°F)	147 mm (5.8 inches)	81%	low