Last updated: March 2, 2024
The weather in Mercer Island, United States, during February is characterized by an average temperature of 5°C (41°F). Highs can soar to 12°C (54°F), while lows may dip to -4°C (25°F). Typically, the humidity level in Mercer Island throughout February hovers around 86%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In February, Mercer Island averages 177 mm (7.0 inches) of rainfall, typically over the course of 19 rainy days. The month enjoys an average of 10 hours 16 minutes of daylight, with the sun shining for approximately 4 hours 15 minutes each day. Additionally, there is a 17% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In February, the UV Index in Mercer Island reaches a maximum of 3, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, 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 | 1 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 0 | 0 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||