August Weather in Rockville

Last updated: March 2, 2024

The weather in Rockville, United States, during August is characterized by an average temperature of 23°C (74°F). Highs can soar to 33°C (92°F), while lows may dip to 12°C (53°F). Typically, the humidity level in Rockville throughout August hovers around 65%.

12°C (53°F)

Minimum temperature

23°C (74°F)

Average temperature

33°C (92°F)

Maximum temperature

65%

Humidity

Precipitation and Sunshine hours

In August, Rockville averages 90 mm (3.5 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 13 hours 45 minutes of daylight, with the sun shining for approximately 10 hours 31 minutes each day. Additionally, there is a 29% probability of sunny days during this period.

90 mm (3.5 inches)

Precipitation

10 rainy days

Rainy days

10 hours 31 minutes

Sunshine hours

29%

Chance of sun

UV Index

In August, the UV Index in Rockville reaches a maximum of 9, 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 8 9 8 7 5 3 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

Compare Rockville's Climate with Cities Worldwide