Last updated: March 2, 2024
The weather in Upland, United States, during August is characterized by an average temperature of 23°C (73°F). Highs can soar to 32°C (90°F), while lows may dip to 12°C (54°F). Typically, the humidity level in Upland throughout August hovers around 79%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In August, Upland averages 100 mm (3.9 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 13 hours 41 minutes of daylight, with the sun shining for approximately 10 hours 36 minutes each day. Additionally, there is a 42% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In August, the UV Index in Upland 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 | 8 | 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 | ||||||