March Weather in Cohasset, United States

Last updated: June 24, 2025

In March, the average temperature in Cohasset, United States hovers around 9°C (48°F). While you might experience a sharp chill with minimums dropping to -7°C (20°F), the mercury can also rise to a pleasant 26°C (79°F). Expect 177 mm (7.0 in) of precipitation spread over 14 days, accompanied by a high average humidity of 83%. Prepare for a mix of weather as you explore this vibrant destination!

March Temperature in Cohasset

In March in Cohasset, the average temperature is 9°C (48°F). Maximums can reach 26°C (79°F), and minimums can drop as low as -7°C (20°F). Be prepared for a mix of mild days and chilly nights when planning your visit.

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

The chart illustrates March 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, March typically has an average temperature of 9°C (48°F), with highs reaching up to 26°C (79°F) and lows dropping to around -7°C (20°F).

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

March Precipitation in Cohasset

In Cohasset in March, the total precipitation amount is 177 mm (7.0 in) spread over a duration of 14 days.

March Precipitation Trends in Cohasset

The chart displays monthly precipitation patterns in Cohasset, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Cohasset, March typically receives around 177 mm (7.0 inches) of precipitation spread over approximately 14 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

March Humidity in Cohasset

In Cohasset in March humidity is 83%. With an average temperature of 9°C (48°F), this humidity feels like an enveloping blanket, making outdoor activities quite uncomfortable and encouraging travelers to seek shelter or shade frequently.

March Average Humidity in Cohasset

This chart illustrates the average monthly humidity levels in Cohasset, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Cohasset is approximately 83%, offering insight into how humid the weather typically is during this month.

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

March UV Index in Cohasset

In Cohasset in March, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Cohasset.

Maximum UV Index Levels in Cohasset for March

The chart shows the monthly maximum UV Index (UVI) for Cohasset in March, 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 March, the maximum UV index in Cohasset typically reaches 7, which falls under the high exposure category.

Data source: Cohasset March 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 March 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 March’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 March’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