Weather in Portland in March 2025
Average weather
Average temperature in Portland in March
The temperature in March is +54°F on average, with a range between a maximum of +68°F during the day and a minimum of +32°F at night.
The average maximum temperature goes up 20% by the end of the month, compared with the beginning of the month, from +45°F to +52°F.
Is Portland warm or cold in March?
Portland is typically mild in March.
Maximum temperatures go up compared to the previous month from +50°F to +57°F. The minimum temperature also goes up from +37°F to +41°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how March is compared to other months in Portland:
Climate in Portland in March
| February | March | April | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +50°F | +57°F | +63°F | ||||
| Min. temperature | ||||||
| 0°F | +19°F | +28°F | ||||
| Max. temperature | ||||||
| +68°F | +79°F | +88°F | ||||
| Rainfall | ||||||
| 132 mm | 153 mm | 145 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 1 m/s | ||||
| Humidity | ||||||
| 81% | 79% | 75% | ||||
| Air pressure | ||||||
| 1017 HPa | 1016 HPa | 1017 HPa | ||||
| Sunny days | ||||||
| 3 | 2 | 2 | ||||
| Cloudy days | ||||||
| 6 | 7 | 7 | ||||
| Rainy days | ||||||
| 16 | 21 | 20 | ||||
| Snowy days | ||||||
| 3 | 1 | 0 | ||||
March weather is still as ok as in February. It’s getting warmer as March arrives. The average maximum temperature goes up from +50°F to +57°F during the day. Prepare for more rain. Average rainfall goes from 132 mm to 153 mm. It feels drier, as humidity decreases from 81% to 79%. The average wind speed doesn’t change much during March, staying around 2 m/s. The days becoming less sunny, going from 3 sunny days in February to 2 in March.
April brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Portland is gradually increasing during March, going from 1 m/s to 4 m/s over the course of the month.
Rain
Snow
Here’s how March is compared with other months in the amount of snow, total mm:
How was the weather last March in Portland?
Climate Change Over the Years
The climate in Portland in March has not changed that much over the last 43 years.
The average temperature was the lowest in 2011 (+61°F) and the highest in 2015 (+67°F). The driest year was 1985 with only 736 mm of rainfall, and the wettest year was 2021 with 4296 mm.
FAQ
Is March a good time to visit Portland?
Can you sunbathe in Portland in March?
Is Portland rainy in March?
Is it sunny in Portland in March?
Other cities in USA
Monthly weather in Portland
Source of the data
For this page, we’ve looked at the typical weather in Portland, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.