Portland Weather in March

March in Portland averages 20°C (68°F) during the day and 15°C (59°F) at night. The excellent conditions and moderate rainfall make it a solid month to visit.

Rainfall in Portland in March

Expect around 8 days of rain based on historical data, with 40 mm (1.6 in) average. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Portland in March

March tends to be one of the excellent months in Portland, with 20°C (68°F) in the afternoon and 15°C (59°F) overnight. The difference between afternoon and evening temperatures is usually noticeable. Nights drop to around 15°C (59°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

If your ideal day consists of dry skies and pleasant temperatures, January, February and March typically offer the best circumstances for Portland.