Olympic National Park weather in July
July in Olympic National Park: nice, dry, with clean air — one of the best months to visit.
#2 of 12 months in Olympic National Park · #20 of 604 destinations to visit in July · comfort 94/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Olympic National Park climate normals — July
| Daytime high | 18°C / 65°F | 😎 nice |
|---|---|---|
| Nighttime low | 8°C / 46°F | |
| Feels like (high) | 18°C / 64°F | |
| Rainfall | 28 mm / 1.1 in | ☀️ dry |
| Rainy days | 5 days | |
| Humidity | 67% | 💧 humid |
| Dew point | 6°C / 43°F | |
| Sunshine | 12.8 h/day | |
| Daylight | 15.6 h | |
| Wind | 8 km/h / 5 mph | |
| Air quality (US AQI) | 28 | 🍃 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 July — FAQ
- Is July a good time to visit Olympic National Park?
- July in Olympic National Park: nice, dry, with clean air — one of the best months to visit. It ranks #2 of 12 months for Olympic National Park on SeasonMap's comfort score (94/100).
- What is the weather like in Olympic National Park in July?
- In July, Olympic National Park averages a daily high of 18.2°C and a low of 7.9°C, with about 27.7 mm of rain over roughly 5.4 rainy days.
- What is the air quality in Olympic National Park in July?
- Olympic National Park has a mean US Air Quality Index of about 28 in July.