Last updated: March 2, 2024
The weather in Sammamish, United States, during January is characterized by an average temperature of 5°C (41°F). Highs can soar to 13°C (56°F), while lows may dip to -6°C (22°F). Typically, the humidity level in Sammamish throughout January hovers around 86%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Sammamish averages 215 mm (8.5 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 8 hours 54 minutes of daylight, with the sun shining for approximately 2 hours 33 minutes each day. Additionally, there is a 17% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In January, the UV Index in Sammamish reaches a maximum of 2, indicating a level of Low exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, 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 | 0 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 |
| Exposure | Low | ||||||||||||
| Time to burn | 45 min | ||||||||||||