May Weather in Cambridge, United States

Last updated: June 24, 2025

In Cambridge, United States, the average temperature in May hovers around 19°C (66°F), with a minimum of 5°C (42°F) and a maximum soaring to 31°C (88°F). Visitors should be prepared for some rain, as 115 mm (4.5 in) of precipitation is expected over 10 days. With an average humidity of 78%, the weather can feel quite muggy, making it the perfect time to enjoy the local sights while staying hydrated!

May Temperature in Cambridge

In May in Cambridge, the average temperature is 19°C (66°F). Maximum temperatures can reach 31°C (88°F), while the minimum can drop as low as 5°C (42°F). This makes it a great time for travelers to enjoy mild weather during their visit.

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

The chart illustrates May temperature patterns in Cambridge, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cambridge, May typically has an average temperature of 19°C (66°F), with highs reaching up to 31°C (88°F) and lows dropping to around 5°C (42°F).

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

May Precipitation in Cambridge

In Cambridge in May, the precipitation amount is 115 mm (4.5 in) over a span of 10 days.

May Precipitation Trends in Cambridge

The chart displays monthly precipitation patterns in Cambridge, 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 Cambridge, May typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Cambridge

In Cambridge in May, humidity is 78%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making traveling quite uncomfortable unless you're well-prepared with lightweight, breathable clothing and frequent breaks to stay hydrated.

May Average Humidity in Cambridge

This chart illustrates the average monthly humidity levels in Cambridge, 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 Cambridge is approximately 78%, 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 Cambridge

In Cambridge in May, 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 Cambridge.

Maximum UV Index Levels in Cambridge for May

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

Data source: Cambridge 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 Cambridge Compares to Other Months

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

This table compares monthly weather conditions in Cambridge, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	68 mm (2.7 inches)	84%	moderate
February Weather	5°C (42°F)	101 mm (4.0 inches)	83%	moderate
March Weather	8°C (47°F)	88 mm (3.5 inches)	83%	high
April Weather	14°C (57°F)	86 mm (3.4 inches)	81%	very high
May Weather	19°C (66°F)	115 mm (4.5 inches)	78%	very high
June Weather	24°C (75°F)	90 mm (3.5 inches)	79%	very high
July Weather	27°C (81°F)	136 mm (5.4 inches)	74%	very high
August Weather	26°C (79°F)	148 mm (5.8 inches)	72%	very high
September Weather	23°C (74°F)	99 mm (3.9 inches)	75%	very high
October Weather	18°C (65°F)	118 mm (4.7 inches)	81%	high
November Weather	10°C (51°F)	86 mm (3.4 inches)	85%	moderate
December Weather	6°C (44°F)	100 mm (3.9 inches)	84%	moderate