April Weather in Portland

Last updated: March 2, 2024

The weather in Portland, United States, during April is characterized by an average temperature of 4°C (39°F). Highs can soar to 22°C (71°F), while lows may dip to -10°C (14°F). Typically, the humidity level in Portland throughout April hovers around 81%.

-10°C (14°F)

Minimum temperature

4°C (39°F)

Average temperature

22°C (71°F)

Maximum temperature

81%

Humidity

Precipitation and Sunshine hours

In April, Portland averages 41 mm (1.6 inches) of rainfall, typically over the course of 6 rainy days. The month enjoys an average of 13 hours 40 minutes of daylight, with the sun shining for approximately 8 hours 31 minutes each day. Additionally, there is a 35% probability of sunny days during this period.

41 mm (1.6 inches)

Precipitation

6 rainy days

Rainy days

8 hours 31 minutes

Sunshine hours

35%

Chance of sun

UV Index

In April, the UV Index in Portland reaches a maximum of 7, 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 6 7 7 6 4 3 2 1
Exposure Low Moderate High Moderate Low
Time to burn 45 min 30 min 25 min 30 min 45 min

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