May Weather in Cambridge, United States

Last updated: June 24, 2025

In May, the average temperature in Cambridge, United States hovers around 12°C (54°F). However, expect a wide range, with minimums plummeting to -2°C (29°F) and maximums soaring up to 33°C (91°F). Rain is a possibility, bringing 95 mm (3.7 in) of precipitation over approximately 10 days, and the air remains quite humid, with an average humidity of 76%.

May Temperature in Cambridge

In May in Cambridge, the average temperature is 12°C (54°F), with maximums reaching up to 33°C (91°F) and minimums dropping as low as -2°C (29°F). This diverse climate makes Cambridge an exciting destination for travelers seeking both warmth and cooler experiences.

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 12°C (54°F), with highs reaching up to 33°C (91°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec192128415463696860483423
Data source: Temperature data for Cambridge generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Cambridge

In Cambridge in May, the total precipitation amount is 95 mm (3.7 in) over the course 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 95 mm (3.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec88837512695851038174129115120
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Cambridge

In Cambridge in May, humidity is 76%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities a bit uncomfortable and requiring frequent hydration while exploring.

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 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%85%81%76%74%74%74%77%82%85%84%
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 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 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 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910887532
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.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)88 mm (3.5 inches)88%low
February Weather-6°C (21°F)83 mm (3.3 inches)88%moderate
March Weather-2°C (29°F)75 mm (2.9 inches)85%moderate
April Weather5°C (42°F)126 mm (5.0 inches)81%very high
May Weather12°C (54°F)95 mm (3.7 inches)76%very high
June Weather17°C (64°F)85 mm (3.4 inches)74%very high
July Weather20°C (69°F)103 mm (4.1 inches)74%very high
August Weather20°C (68°F)81 mm (3.2 inches)74%very high
September Weather16°C (60°F)74 mm (2.9 inches)77%high
October Weather9°C (49°F)129 mm (5.1 inches)82%moderate
November Weather1°C (34°F)115 mm (4.5 inches)85%moderate
December Weather-5°C (24°F)120 mm (4.7 inches)84%low

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