August Weather in London

Last updated: March 2, 2024

The weather in London, Canada, during August is characterized by an average temperature of 21°C (70°F). Highs can soar to 30°C (86°F), while lows may dip to 9°C (48°F). Typically, the humidity level in London throughout August hovers around 80%.

9°C (48°F)

Minimum temperature

21°C (70°F)

Average temperature

30°C (86°F)

Maximum temperature

80%

Humidity

Precipitation and Sunshine hours

In August, London averages 108 mm (4.2 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 13 hours 50 minutes of daylight, with the sun shining for approximately 10 hours 49 minutes each day. Additionally, there is a 50% probability of sunny days during this period.

108 mm (4.2 inches)

Precipitation

12 rainy days

Rainy days

10 hours 49 minutes

Sunshine hours

50%

Chance of sun

UV Index

In August, the UV Index in London 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 1 2 4 6 8 9 9 7 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

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