Last updated: March 2, 2024
The weather in Somerville, United States, during May is characterized by an average temperature of 25°C (77°F). Highs can soar to 34°C (94°F), while lows may dip to 13°C (57°F). Typically, the humidity level in Somerville throughout May hovers around 81%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In May, Somerville averages 166 mm (6.5 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 13 hours 40 minutes of daylight, with the sun shining for approximately 9 hours 20 minutes each day. Additionally, there is a 28% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In May, the UV Index in Somerville reaches a maximum of 11, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 1 | 3 | 5 | 8 | 10 | 11 | 11 | 9 | 7 | 4 | 2 | 1 |
| Exposure | Low | Moderate | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | |||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | |||||