April Weather in Portland

Last updated: March 2, 2024

The weather in Portland, United States, during April is characterized by an average temperature of 23°C (73°F). Highs can soar to 32°C (89°F), while lows may dip to 11°C (51°F). Typically, the humidity level in Portland throughout April hovers around 82%.

11°C (51°F)

Minimum temperature

23°C (73°F)

Average temperature

32°C (89°F)

Maximum temperature

82%

Humidity

Precipitation and Sunshine hours

In April, Portland averages 44 mm (1.7 inches) of rainfall, typically over the course of 6 rainy days. The month enjoys an average of 12 hours 50 minutes of daylight, with the sun shining for approximately 9 hours 14 minutes each day. Additionally, there is a 37% probability of sunny days during this period.

44 mm (1.7 inches)

Precipitation

6 rainy days

Rainy days

9 hours 14 minutes

Sunshine hours

37%

Chance of sun

UV Index

In April, the UV Index in Portland reaches a maximum of 11, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 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	4	7	10	11	11	9	6	4	2	1
Exposure	Low			Moderate	High	VeryHigh	Extreme		VeryHigh	High	Moderate	Low
Time to burn	45 min			30 min	25 min	15 min	10 min		15 min	25 min	30 min	45 min