April Weather in Sammamish

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%.

0°C (32°F)

Minimum temperature

9°C (49°F)

Average temperature

23°C (73°F)

Maximum temperature

84%

Humidity

Precipitation and Sunshine hours

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.

154 mm (6.1 inches)

Precipitation

16 rainy days

Rainy days

7 hours 40 minutes

Sunshine hours

48%

Chance of sun

UV Index

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.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  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

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