Olympic National Park weather in April
April in Olympic National Park: cold, soaked, with clean air — a good time to visit.
#6 of 12 months in Olympic National Park · #496 of 604 destinations to visit in April · comfort 68/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Olympic National Park climate normals — April
| Daytime high | 5°C / 40°F | 🧥 cold |
|---|---|---|
| Nighttime low | -3°C / 27°F | |
| Feels like (high) | 2°C / 36°F | |
| Rainfall | 176 mm / 6.9 in | ⛈ soaked |
| Rainy days | 18 days | |
| Humidity | 85% | 💦 very humid |
| Dew point | -4°C / 25°F | |
| Sunshine | 9.1 h/day | |
| Daylight | 13.7 h | |
| Wind | 11 km/h / 7 mph | |
| Snowfall | 57.2 cm / 22.5 in | |
| Air quality (US AQI) | 38 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Olympic National Park?
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Olympic National Park in April — FAQ
- Is April a good time to visit Olympic National Park?
- April in Olympic National Park: cold, soaked, with clean air — a good time to visit. It ranks #6 of 12 months for Olympic National Park on SeasonMap's comfort score (68/100).
- What is the weather like in Olympic National Park in April?
- In April, Olympic National Park averages a daily high of 4.7°C and a low of -3°C, with about 176.2 mm of rain over roughly 18.4 rainy days.
- What is the air quality in Olympic National Park in April?
- Olympic National Park has a mean US Air Quality Index of about 38 in April.
- Does it snow in Olympic National Park in April?
- Olympic National Park sees roughly 57.2 cm of snowfall in April.