Last updated: March 2, 2024
The weather in Southwest Harbor, United States, during January is characterized by an average temperature of -1°C (30°F). Highs can soar to 9°C (49°F), while lows may dip to -14°C (7°F). Typically, the humidity level in Southwest Harbor throughout January hovers around 88%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Southwest Harbor averages 113 mm (4.4 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 9 hours 16 minutes of daylight, with the sun shining for approximately 4 hours 33 minutes each day. Additionally, there is a 36% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In January, the UV Index in Southwest Harbor reaches a maximum of 2, indicating a level of Low exposure. The most intense UV radiation typically occurs between 10:00 and 12:00, during which unprotected skin may burn in as little as 45 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 | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 |
| Exposure | Low | ||||||||||||
| Time to burn | 45 min | ||||||||||||