Portland
Oregon, USA
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Portland, OR

A colorful autumn view of the outline of Portland City, Oregon, with mountains in the distance
A colorful autumn view of the outline of Portland City, Oregon, with mountains in the distance
April is mid-spring in Portland as the cloudy and wet weather begins to taper off; the 2.7" (68.6mm) of rainfall is moderate and spreads over 15 days during the month.
The average temperatures are in the steady range of 43°F (6.1°C) to 61°F (16.1°C), and the sunshine improves to 7.5 hours daily.
Flowers bloom over the landscape as the ground softens at the end of winter. Portland is less windy during April even though the city has mostly flat terrain. Carry an umbrella or rain jacket, while exploring outdoors.

What is the temperature in April in Portland?

In April, the average high-temperature is 61.3°F (16.3°C), and the average low-temperature is 43.2°F (6.2°C).

What is the average humidity in April in Portland?

In April, the average relative humidity in Portland is 71.6%.

How much does it rain in Portland in April?

In Portland, Oregon, in April, it is raining for 16.4 days, with typically 2.7" (69.3mm) of accumulated precipitation.

Does it snow in Portland in April?

In April, in Portland, it doesn't snow. March is the latest month when it typically snows.

When it does not snow in Portland?

In Portland, Oregon, snow does not fall in April through October.

How many hours of daylight does Portland have in April?

In Portland, Oregon, the average length of the day in April is 13.6h.

How long on average sun shines in April in Portland?

In Portland, Oregon, the average sunshine in April is 7.4h.

How high is the UV index in April in Portland?

In April, the average daily maximum UV index in Portland is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV rays.
Average temperature in April - Portland, OR
  • Average high temperature in April: 61.4°F

The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (45.6°F).

  • Average low temperature in April: 43.1°F

The month with the highest average low temperature is August (58°F).
The coldest month (with the lowest average low temperature) is December (35.2°F).

Average humidity in April - Portland, OR
  • Average humidity in April: 71.6%

The month with the highest relative humidity is December (82.7%).
The month with the lowest relative humidity is July (62.8%).

Average rainfall in April - Portland, OR
  • Average rainfall in April: 2.7"

The wettest month (with the highest rainfall) is November (5.6").
Driest months (with the lowest rainfall) are July and August (0.7").

Average rainfall days in April - Portland, OR
  • Average rainfall days in April: 16.4 days

The month with the highest number of rainy days is November (19 days).
The month with the lowest number of rainy days is August (3.9 days).

Average snowfall in April - Portland, OR
  • Average snowfall in April: 0"

The month with the highest snowfall is February (2.1").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in April - Portland, OR
  • Average snowfall days in April: 0 days

Months with the highest number of snowfall days are February and December (1.5 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in April / Average sunshine in April - Portland, OR
  • Average daylight in April: 13.6h

The month with the longest days is June (Average daylight: 15.6h).
The month with shortest days is December (Average daylight: 8.8h).

  • Average sunshine in April: 7.4h

The month with most sunshine is July (Average sunshine: 10.7h).
The month with least sunshine is December (Average sunshine: 2.1h).

Average UV index in April - Portland, OR
  • Average UV index in April: 5

The month with the highest UV index is July (UV index 8).
Months with the lowest UV index are January and December (UV index 1).