Olympic National Park weather in March
March in Olympic National Park: cold, soaked, with clean air — a gamble, with 19 rainy days.
Updated September 2026 · climate normals from ERA5 reanalysis
#8 of 12 months in Olympic National Park · #1291 of 1413 destinations to visit in March · comfort 54/100 (tier D)
- Days
- 4°C
- Nights
- -4°C
- Wet days
- 19
- Sun
- 7.4 h
- Humidity
- 84%
- Daylight
- 12 h

Traveller notes on Olympic National Park in March
Olympic National Park-forum threads on a March visit call this genuinely one of the roughest windows of the year, posters describing the month as more an extension of winter than a real spring visit most years. Regulars call the Hoh and Quinault rainforests along with La Push and Kalaloch beaches the strongest March picks, these lower-elevation areas free of snow and road closures barring a severe storm. Posters call gaining elevation a real problem this month, snow appearing fast once a route climbs beyond the river valleys. Regulars recommend staying close to planned destinations rather than basing far away, March daylight here still limited enough that long drives eat into usable time. Posters call multi-day windstorms a genuine March hazard, conditions capable of disrupting plans for several days running. The record: 3.6C days feeling like 1C, -3.6C nights, an extraordinarily high 311.4mm across nearly 19 days and 82 percent humidity.
Other months in Olympic National Park
Olympic-forum threads on a January visit describe Hurricane Ridge and the Sol Duc resort as genuinely closed, posters naming this a real limitation for anyone hoping to visit either spot. Regulars call the park's variety genuinely on display even in winter, several posters naming snow in the mountains, rain in the lowlands and wind along the coast within the same trip. Posters call January genuinely a better choice than November or December, several regulars naming lengthening days and more sun breaks past the eighteenth as reasons late January edges out earlier winter. Regulars call the rain shadow area a real bet for better odds of sun, several threads naming this a genuine strategy for chasing clearer weather. Posters recommend real waterproof layers regardless of which part of the park you visit, several regulars calling this standard given how much conditions vary. The record: 2.9C days, -2.6C nights, an extraordinarily high 527mm across nearly 20 days and 89 percent humidity.
Olympic-forum threads on a November visit describe this as genuinely one of the wettest stretches of the year, posters calling frequent rain and short days the standard rather than the exception. Regulars call wind, not snow, the real concern here, dangerous storms capable of closing the Hoh Rainforest ahead of a forecast system. Posters describe fog and overcast skies as common companions to the rain, though real breaks do occur and a light shower with a good raincoat can still be enjoyable. Regulars call conditions impossible to predict this far out, some November days turning out great and others a real washout. Posters recommend real waterproof gear and boots regardless of forecast, temperatures generally in the low fifties Fahrenheit. Regulars call the rainforest genuinely atmospheric this time of year, mist and dripping canopy part of the appeal. The record: 4.5C days feeling like 1C, -1.2C nights, an extraordinarily high 550.4mm across over 21 days and 88 percent humidity.
Olympic-forum threads on September weather are consistent this is genuinely one of the park's strongest months, noticeably drier than the notoriously wet stretch running much of the rest of the year, especially once after-Labor-Day crowds thin out. Posters call days here often sunnier than August, clear enough after dark for genuinely good stargazing given how little light pollution reaches this corner of the peninsula. Regulars describe elk as more visible this time of year, sightings along Hoh Rain Forest trails a real highlight. Posters call Lake Crescent and Lake Angeles both at their warmest for swimming by September. Regulars are direct this reputation comes with a real caveat, a run of grey, damp days entirely possible even during an otherwise favorable September. Posters recommend a hat and sun protection regardless of the changeable reputation. The record: 13.6C days feeling like 12C, 5.6C nights, an extraordinarily high 148mm across nearly 11 days and 75 percent humidity.
Olympic-forum threads on October describe a real split within the month - the first two to three weeks generally deliver plenty of sun and clear nights with genuine autumn color in the heaths and shrubs, while the heavier systems typically arrive by mid-month, especially on the park's west side covering the Hoh Rainforest and areas near Lake Quinault. Posters describe the wetter stretch as more steady drizzle than dramatic downpours, and note the rainforest canopy is thick enough that a light shower often goes unnoticed underneath it. A heavier, windier spell is called genuinely uncomfortable for hiking even in good gear, though posters call the rainforest atmospheric and worth it even under a gentle shower. Regulars recommend early-to-mid October for the best odds of favorable conditions. The record: 8.9C days feeling like 6C, 2.1C nights, an extraordinarily high 391mm across nearly 17 days and 83 percent humidity.
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Olympic National Park climate normals — March
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Olympic National Park in March
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusySpring break in United States(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Olympic National Park's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherOlympic National Park's weather peaks June–August.
Best weatherFair weatherToughest weather
What's on in Olympic National Park in March
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Closure
Hurricane Ridge winter access
1 Dec – 31 MarThe only road to the alpine is ploughed Friday to Sunday and holiday Mondays in winter, with uphill traffic allowed 9am to 4pm and chains required in the vehicle. The rest of the week the gate stays shut. Source ↗
- Season
Snow season
Ski seasonAbout 99 cm of snow falls in the month.
from the climate normals
Nearby, and something's on
Within 300 km of Olympic National Park — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Olympic National Park?
Olympic National Park in March — FAQ
- Is March a good time to visit Olympic National Park?
- March in Olympic National Park: cold, soaked, with clean air — a gamble, with 19 rainy days. It ranks #8 of 12 months for Olympic National Park on SeasonMap's comfort score (54/100).
- What is the weather like in Olympic National Park in March?
- In March, Olympic National Park averages a daily high of 3.6°C and a low of -3.6°C, with about 311.4 mm of rain over roughly 18.8 rainy days.
- What is the air quality in Olympic National Park in March?
- Olympic National Park has a mean US Air Quality Index of about 41 in March.
- Does it snow in Olympic National Park in March?
- Olympic National Park sees roughly 98.8 cm of snowfall in March.
Within 300 km: Victoria, BC's The flower count around 25 Feb – 8 Mar, and Seattle's Cherry blossom on the UW Quad around 18 Mar – 10 Apr.