Washington · National Park
Best time to visit Olympic
Checked Oct 26, 2026 · Source: NPS + NOAA
For Olympic, the mild and quiet months are April: average highs of 50 to 85°F at the nearest NOAA station and visits at or below the yearly monthly average. August is busiest, with 16% of 2025 recreation visits. January was quietest, with an average high of 41°F. Sources: NPS IRMA Stats and NOAA normals, checked Oct 26, 2026.
Crowd index by month
Each bar is that month’s NPS recreation visits compared with the average month of 2025 (100 = average). August scored 189; January scored 33.
Source: NPS IRMA Stats, recreation visitors, 2025, pulled Oct 26, 2026. Index = month ÷ average month × 100.
Weather normals by month
| Month | Avg high °F | Avg low °F | Precip in | Crowd index |
|---|---|---|---|---|
| January | 41.1 | 32.8 | 8.87 | 33 |
| February | 43.8 | 32.8 | 6.14 | 39 |
| March | 49.7 | 34.9 | 6.94 | 44 |
| April | 56.3 | 37.8 | 3.28 | 57 |
| May | 63.4 | 43.2 | 1.91 | 146 |
| June | 67.2 | 47.2 | 1.39 | 122 |
| July | 73.6 | 50.7 | 0.74 | 179 |
| August | 74.5 | 51.6 | 1.14 | 189 |
| September | 68.1 | 48.0 | 1.63 | 173 |
| October | 55.5 | 41.5 | 5.85 | 108 |
| November | 45.6 | 36.1 | 10.06 | 73 |
| December | 40.7 | 32.7 | 9.92 | 36 |
Source: NOAA NCEI U.S. Climate Normals 1991-2020 (monthly), station USC00452548. The station may sit at a different elevation than the places you visit, so expect cooler temperatures higher up.
Mild and quiet months
- April
Our rule, applied to the data above: average high between 50 and 85°F, and recreation visits no higher than the average month. It is arithmetic, not a forecast. Roads, trails and facilities can still be closed in these months.
Closures and seasonal dates
| Campground | Closed from | Until |
|---|---|---|
| Fairholme Campground | Sep 28, 2026 | Apr 22, 2027 |
| South Beach Campground | Sep 28, 2026 | May 20, 2027 |
| South Beach Campground | Sep 28, 2026 | May 20, 2027 |
Source: NPS API campgrounds and alerts, checked Oct 26, 2026.
Hours
Olympic National Park is open 24 hours a day year-round, although some roads, campgrounds and facilities are open seasonally.
Source: NPS API operating hours, checked Oct 26, 2026.
More on Olympic: tour or DIY overview. TourOrDIY is independent and not affiliated with the National Park Service. See the accuracy disclaimer and our method.