Last updated: June 24, 2025
In May, the average temperature in Plymouth, United States hovers around 15°C (59°F). However, prepare for a range of 0°C (33°F) to a warm 33°C (92°F). Expect 120 mm (4.7 in) of precipitation spread over 13 days, contributing to an average humidity of 69%. Be ready for a mix of weather this month!
In May in Plymouth, the average temperature is 15°C (59°F). The maximum can reach 33°C (92°F), while the minimum can drop as low as 0°C (33°F). Be prepared for a wide range of temperatures if you're planning to travel during this time!
In Plymouth in May, the precipitation amount is 120 mm (4.7 in) spread over 13 days.
In Plymouth in May humidity is 69%. With an average temperature of 15°C (59°F), this humidity feels like a mild blanket wrapping around you, making it slightly uncomfortable for traveling; you'll likely find yourself seeking shade and refreshing drinks to stay cool as you explore.
In Plymouth 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 Plymouth.
UV Risk Categories
Weather in Plymouth varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Plymouth, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -2°C (29°F) | 73 mm (2.9 inches) | 84% | moderate |
February Weather | 0°C (32°F) | 93 mm (3.7 inches) | 82% | moderate |
March Weather | 3°C (38°F) | 91 mm (3.6 inches) | 81% | high |
April Weather | 9°C (48°F) | 136 mm (5.3 inches) | 78% | very high |
May Weather | 15°C (59°F) | 120 mm (4.7 inches) | 69% | very high |
June Weather | 20°C (69°F) | 103 mm (4.1 inches) | 69% | very high |
July Weather | 23°C (74°F) | 162 mm (6.4 inches) | 62% | very high |
August Weather | 22°C (73°F) | 107 mm (4.2 inches) | 65% | very high |
September Weather | 19°C (66°F) | 122 mm (4.8 inches) | 68% | very high |
October Weather | 13°C (56°F) | 152 mm (6.0 inches) | 74% | high |
November Weather | 5°C (42°F) | 95 mm (3.7 inches) | 82% | moderate |
December Weather | 1°C (33°F) | 123 mm (4.9 inches) | 80% | low |