Last updated: March 2, 2024
The weather in Jamestown, United States, during July is characterized by an average temperature of 25°C (77°F). Highs can soar to 33°C (91°F), while lows may dip to 14°C (58°F). Typically, the humidity level in Jamestown throughout July hovers around 79%.
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Average temperature
Maximum temperature
Humidity
In July, Jamestown averages 99 mm (3.9 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 14 hours 38 minutes of daylight, with the sun shining for approximately 11 hours 11 minutes each day. Additionally, there is a 49% probability of sunny days during this period.
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Chance of sun
In July, the UV Index in Jamestown reaches a maximum of 10, 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 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |
| 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 | ||||||