May Weather in Dorchester

Last updated: March 2, 2024

The weather in Dorchester, United States, during May is characterized by an average temperature of 14°C (57°F). Highs can soar to 29°C (85°F), while lows may dip to 0°C (33°F). Typically, the humidity level in Dorchester throughout May hovers around 79%.

0°C (33°F)

Minimum temperature

14°C (57°F)

Average temperature

29°C (85°F)

Maximum temperature

79%

Humidity

Precipitation and Sunshine hours

In May, Dorchester averages 118 mm (4.7 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 14 hours 51 minutes of daylight, with the sun shining for approximately 8 hours 54 minutes each day. Additionally, there is a 37% probability of sunny days during this period.

118 mm (4.7 inches)

Precipitation

13 rainy days

Rainy days

8 hours 54 minutes

Sunshine hours

37%

Chance of sun

UV Index

In May, the UV Index in Dorchester reaches a maximum of 8, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  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 2 3 5 7 8 8 8 6 5 3 2 1
Exposure Low Moderate High VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 25 min 30 min 45 min

Compare Dorchester's Climate with Cities Worldwide