Last updated: March 2, 2024
The weather in Guelph, Canada, during August is characterized by an average temperature of 20°C (69°F). Highs can soar to 30°C (86°F), while lows may dip to 10°C (50°F). Typically, the humidity level in Guelph throughout August hovers around 80%.
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Average temperature
Maximum temperature
Humidity
In August, Guelph averages 95 mm (3.7 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 13 hours 52 minutes of daylight, with the sun shining for approximately 10 hours 48 minutes each day. Additionally, there is a 49% probability of sunny days during this period.
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Rainy days
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Chance of sun
In August, the UV Index in Guelph 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 | ||||||