Portland, United States skyline

Portland Weather in March

Typical March weather in Portland, United States, based on 2006–2025 climate averages.

In March, Portland averages a high of 11.8°C (53.2°F) and a low of 3.3°C (37.9°F), with about 19 rainy days (153 mm of rain) and 7.2 hours of sunshine a day.

Avg high

11.8°C (53.2°F)

Avg low

3.3°C (37.9°F)

Rainfall

153 mm (6 in)

Rainy days

19 days

Sunshine

7.2 h / day

Humidity

81%

March vs the rest of the year

Here is how every month in Portland stacks up against March — the 4th wettest month for rain.

MonthAvg highvs MarchRainRainy days
January8.1°C (46.6°F)−3.7°C (−6.7°F)175 mm17
February9.2°C (48.6°F)−2.6°C (−4.7°F)134 mm16
March11.8°C (53.2°F)—153 mm19
April14.7°C (58.5°F)+2.9°C (+5.2°F)111 mm15
May19°C (66.2°F)+7.2°C (+13°F)75 mm11
June22.5°C (72.5°F)+10.7°C (+19.3°F)50 mm8
July27.9°C (82.2°F)+16.1°C (+29°F)9 mm2
August28.2°C (82.8°F)+16.4°C (+29.5°F)13 mm3
September24.2°C (75.6°F)+12.4°C (+22.3°F)55 mm7
October16.9°C (62.4°F)+5.1°C (+9.2°F)123 mm12
November10.9°C (51.6°F)−0.9°C (−1.6°F)190 mm18
December7.5°C (45.5°F)−4.3°C (−7.7°F)207 mm18

What March feels like in Portland

March is early spring in Portland. Days are chilly rather than freezing, and walking is comfortable with a proper jacket. Evenings bring a clear drop in temperature, and nights are cold. The air is damp, which makes cool temperatures feel colder, particularly in wind.

Rain in Portland in March

Rain is part of normal life this month, falling on most days. A rainy day brings about 8.1 mm (0.3 in) on average — steady rain rather than a passing shower. That is close to Portland's typical rain per wet day for the whole year (about 8.9 mm).

Daylight and sunshine in March

In mid-March, sunrise is at about 7:26 am and sunset at about 7:15 pm (local time) — 11 h 50 min of daylight. Days are getting longer: 1 h 28 min more daylight than in mid-February. About 61% of daylight hours are sunny; in short, there are plenty of bright spells.

How March compares to the rest of the year

Ranked by average high, March comes out as the 5th coolest month in Portland. Against February, the average high is 2.6°C (4.7°F) higher, with 19 mm more rain. Temperatures keep climbing into April. April averages a high of 14.7°C (58.5°F).

Who March suits

  • Sightseeing: less ideal — rain falls on more than half the days.
  • Parks & outdoor: less ideal — too cool to sit outside for long.
  • Hiking: less ideal — trails are cool.
  • Museums & indoor: a good choice — with rain on most days, galleries and museums make easy plans.

Tips for visiting Portland in March

Versatile Layers

Days are noticeably warmer than nights — layers you can add or remove.

Rain Protection

A compact umbrella and a light waterproof jacket.

Warm Layers

Insulated layers and warm shoes for the cold hours.

Sunglasses

Frequent sunshine — sunglasses and a light hat.

Quick questions

How warm is Portland in March?

Expect around 11.8°C (53.2°F) in the afternoon and 3.3°C (37.9°F) at night, which most visitors would call chilly.

Does it rain a lot in Portland in March?

Yes, fairly — rain falls most days and totals about 153 mm, so an umbrella is worth carrying.

What should I wear in Portland in March?

The numbers point to versatile layers, rain protection, warm layers and sunglasses. Add a layer for after dark.

Is March or April better for visiting Portland?

April scores better on our climate ranking (#7 of 12 vs #11), rated Good against Poor. April is warmer and has fewer rainy days.

Is March a good time to visit Portland?

Poor

Poor — chilly days, rain on most days (about 19). Within Portland's own year, March ranks #11 of 12 — one of the least comfortable months.

March in other United States cities

Warmer or drier places in March

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Portland weather by month.