Last updated: March 2, 2024
The weather in Summerville, United States, during January is characterized by an average temperature of 7°C (44°F). Highs can soar to 21°C (71°F), while lows may dip to -7°C (20°F). Typically, the humidity level in Summerville throughout January hovers around 87%.
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Average temperature
Maximum temperature
Humidity
In January, Summerville averages 123 mm (4.8 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 10 hours 7 minutes of daylight, with the sun shining for approximately 5 hours 3 minutes each day. Additionally, there is a 37% probability of sunny days during this period.
Precipitation
Rainy days
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Chance of sun
In January, the UV Index in Summerville reaches a maximum of 4, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 30 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 | 0 | 1 | 1 | 2 | 3 | 4 | 4 | 3 | 2 | 1 | 1 | 0 | 0 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||