April Weather in Boston

Last updated: March 2, 2024

The weather in Boston, United States, during April is characterized by an average temperature of 13°C (55°F). Highs can soar to 19°C (67°F), while lows may dip to 5°C (41°F). Typically, the humidity level in Boston throughout April hovers around 81%.

5°C (41°F)

Minimum temperature

13°C (55°F)

Average temperature

19°C (67°F)

Maximum temperature

81%

Humidity

Precipitation and Sunshine hours

In April, Boston averages 86 mm (3.4 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 13 hours 11 minutes of daylight, with the sun shining for approximately 9 hours 58 minutes each day. Additionally, there is a 54% probability of sunny days during this period.

86 mm (3.4 inches)

Precipitation

10 rainy days

Rainy days

9 hours 58 minutes

Sunshine hours

54%

Chance of sun

UV Index

In April, the UV Index in Boston reaches a maximum of 9, 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 1 3 5 7 9 9 8 6 4 2 1 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

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