Last updated: March 2, 2024
The weather in River Grove, United States, during August is characterized by an average temperature of 23°C (73°F). Highs can soar to 31°C (89°F), while lows may dip to 14°C (58°F). Typically, the humidity level in River Grove throughout August hovers around 81%.
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Average temperature
Maximum temperature
Humidity
In August, River Grove averages 80 mm (3.2 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 13 hours 46 minutes of daylight, with the sun shining for approximately 11 hours 0 minutes each day. Additionally, there is a 47% probability of sunny days during this period.
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Chance of sun
In August, the UV Index in River Grove reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, 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 | 2 | 3 | 5 | 7 | 9 | 9 | 8 | 6 | 4 | 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 | ||||||