May Weather in Bethesda

Last updated: March 2, 2024

The weather in Bethesda, United States, during May is characterized by an average temperature of 17°C (63°F). Highs can soar to 30°C (86°F), while lows may dip to 3°C (37°F). Typically, the humidity level in Bethesda throughout May hovers around 82%.

3°C (37°F)

Minimum temperature

17°C (63°F)

Average temperature

30°C (86°F)

Maximum temperature

82%

Humidity

Precipitation and Sunshine hours

In May, Bethesda averages 141 mm (5.6 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 14 hours 24 minutes of daylight, with the sun shining for approximately 8 hours 39 minutes each day. Additionally, there is a 31% probability of sunny days during this period.

141 mm (5.6 inches)

Precipitation

16 rainy days

Rainy days

8 hours 39 minutes

Sunshine hours

31%

Chance of sun

UV Index

In May, the UV Index in Bethesda reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, 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 9 10 10 8 6 4 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 Bethesda's Climate with Cities Worldwide