Portland Weather in April
United States · Oceanic climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
April in Portland sees average temperatures ranging from a low of 4.6°C (40.3°F) to a high of 14.7°C (58.5°F), with a mean of 9.4°C (48.9°F). Compared to the annual average of 11.9°C (53.4°F), this month is 2.5°C cooler than the yearly norm. Precipitation averages 109.2mm, making it approximately 10.0mm drier than the monthly average of 120.0mm. The city receives an average of 8.9 hours of sunshine per day during April, with relative humidity averaging 75.5%. Wind speeds reach an average maximum of 16.7 km/h. Snowfall averages 7.4cm during April, which can affect travel plans and outdoor activities. For travelers, this month offers a temperature experience in Portland, with drier-than-average conditions compared to the rest of the year.
Portland's climate is similar to Seattle but with slightly warmer summers and cooler winters. I visited during the famous rose festival in June and found the weather ideal. The data shows that the best time to visit is June to September, when the rainfall is minimal and the city's famous outdoor culture thrives. The winter months are grey and wet but the city's coffee shop culture makes it cozy.
April vs Adjacent Months
| Metric | March | April | May |
|---|---|---|---|
| Mean Temp | 6.6°C (43.9°F) | 9.4°C (48.9°F) | 13.3°C (55.9°F) |
| Rainfall | 121.4mm | 109.2mm | 97.6mm |
| Sunshine | 7.1 hrs | 8.9 hrs | 10.1 hrs |
| Humidity | 81.2% | 75.5% | 73.8% |
| Wind | 16.4 km/h | 16.7 km/h | 16.0 km/h |
| Rainy Days | 18.8 | 18.2 | 17.0 |
| Snowfall | 6.8 cm | 7.4 cm | 0.0 cm |
Seasonal Context
April falls in Spring in the Northern Hemisphere. Spring is a transitional season with temperatures rising from winter lows. For travelers visiting Portland in April, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Portland in April?
The average temperature in Portland during April ranges from 4.6°C (40.3°F) to 14.7°C (58.5°F), with a mean of 9.4°C (48.9°F).
How much does it rain in Portland in April?
Portland receives an average of 109.2mm of precipitation in April, spread across approximately 18.2 rainy days.
What should I pack for Portland in April?
Based on April weather data, pack warm layers, a medium jacket, and waterproof outerwear. Rain gear is essential — this month averages 109.2mm of precipitation.
Is April a good time to visit Portland?
April is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Portland
Cities with Similar April Climate (Oceanic)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 45.52°, -122.68°. Timezone: America/Los_Angeles. Last updated: 2026-07-30.