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%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
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.
Precipitation
Rainy days
Sunshine hours
Chance of sun
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.
| 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 | ||||||