Last updated: March 2, 2024
The weather in Sammamish, United States, during April is characterized by an average temperature of 9°C (49°F). Highs can soar to 23°C (73°F), while lows may dip to 0°C (32°F). Typically, the humidity level in Sammamish throughout April hovers around 84%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In April, Sammamish averages 154 mm (6.1 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 13 hours 41 minutes of daylight, with the sun shining for approximately 7 hours 40 minutes each day. Additionally, there is a 48% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In April, the UV Index in Sammamish reaches a maximum of 6, indicating a level of High exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 25 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 | 3 | 5 | 5 | 6 | 6 | 5 | 3 | 2 | 1 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||