May Weather in Norwell, United States

Last updated: June 24, 2025

In May, the average temperature in Norwell, United States is a comfortable 12°C (54°F), with a minimum dipping to 4°C (39°F) and a pleasant maximum reaching 23°C (73°F). Expect a little wet weather, as precipitation averages 110 mm (4.3 in) spread over 12 days. Humidity hovers around a moderate 72%, adding to the overall atmosphere of this charming locale.

May Temperature in Norwell

In May in Norwell, the average temperature is 12°C (54°F), with maximums reaching 23°C (73°F) and minimums dropping as low as 4°C (39°F). This mild climate makes Norwell an ideal destination for travelers looking to enjoy comfortable outdoor activities.

May Weather in Norwell: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Norwell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Norwell, May typically has an average temperature of 12°C (54°F), with highs reaching up to 23°C (73°F) and lows dropping to around 4°C (39°F).

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

May Precipitation in Norwell

In Norwell in May, the precipitation amount is 110 mm (4.3 in) over a span of 12 days.

May Precipitation Trends in Norwell

The chart displays monthly precipitation patterns in Norwell, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Norwell, May typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 12 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Norwell

In Norwell in May, humidity is 72%. With an average temperature of 12°C (54°F), this humidity feels like a damp chill that wraps around you, making outdoor excursions a bit uncomfortable. You may find yourself reaching for an extra layer as the moisture in the air adds to the coolness, prompting travelers to seek out sheltered spots to enjoy the scenery.

May Average Humidity in Norwell

This chart illustrates the average monthly humidity levels in Norwell, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Norwell is approximately 72%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Norwell

In Norwell in May, 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 Norwell.

Maximum UV Index Levels in Norwell for May

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

Data source: Norwell May 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 May Weather in Norwell Compares to Other Months

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

This table compares monthly weather conditions in Norwell, showing how May’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