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%.
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.
In Cambridge in May, the total precipitation amount is 95 mm (3.7 in) over the course of 10 days.
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.
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.
UV Risk Categories
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.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
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 Weather | 5°C (42°F) | 126 mm (5.0 inches) | 81% | very high |
May Weather | 12°C (54°F) | 95 mm (3.7 inches) | 76% | very high |
June Weather | 17°C (64°F) | 85 mm (3.4 inches) | 74% | very high |
July Weather | 20°C (69°F) | 103 mm (4.1 inches) | 74% | very high |
August Weather | 20°C (68°F) | 81 mm (3.2 inches) | 74% | very high |
September Weather | 16°C (60°F) | 74 mm (2.9 inches) | 77% | high |
October Weather | 9°C (49°F) | 129 mm (5.1 inches) | 82% | moderate |
November Weather | 1°C (34°F) | 115 mm (4.5 inches) | 85% | moderate |
December Weather | -5°C (24°F) | 120 mm (4.7 inches) | 84% | low |