オリンピック国立公園の月別の天気

オリンピック国立公園を訪れるベストシーズンは6月〜8月です — 8月は96/100、最高19°C、雨の日3日。 ベストな季節は夏(6月〜8月)で、平均92/100です。

最も不向きな月は12月で、35/100です — 極寒、大雨続き、空気がきれい。 12月を見る →

2026年9月更新 · ERA5再解析による気候平年値

周辺も含めて旅を計画するなら アメリカ合衆国旅行のベストシーズン →

オリンピック国立公園Olympic National Park, United States🇺🇸 アメリカ合衆国 · 太平洋岸北西部 · 国立公園96
  1. 391月
  2. 472月
  3. 543月
  4. 664月
  5. 805月
  6. 856月
  7. 947月
  8. 968月
  9. 789月
  10. 5810月
  11. 4411月
  12. 3512月

ベストな季節:6月〜8月(平均92/100) · 最も不向きなのは12月(35/100)

日中
19°C
9°C
雨の日
3
日照
11.9 h
湿度
68%
日の長さ
14 h
オリンピック国立公園(アメリカ合衆国)
写真: Ambient Vista · Pexels

オリンピック国立公園の月ごとのようす

オリンピック国立公園に最も合う旅のタイプでの100点満点の快適スコア、気候平年値による平均最高気温・雨の日数・1日の日照時間、そして混雑具合の目安です。

スコアランク最高日照混雑イベント
1月39F3°C20日4時間混雑1
2月47F2°C18日6時間ショルダー1
3月54D4°C19日7時間混雑1
4月66C6°C16日9時間ショルダー
5月80A11°C10日11時間混雑1
6月85A14°C7日12時間混雑1
7月94S18°C3日13時間ピーク3
8月96S19°C3日12時間ピーク4
9月78B14°C11日10時間ピーク5
10月58D9°C17日7時間ショルダー3
11月44F5°C21日5時間混雑
12月35F2°C21日4時間混雑1

オリンピック国立公園の年間イベント

祭り、自然の見どころ、祝日、そして注意したい季節 — 厳選し出典を明記しています。詳しくは各月のページで。

5月
  • Memorial Day weekend5月23日〜25日祝日
6月
  • Subalpine wildflowers6月20日〜8月10日(例年)自然
7月
  • The dry window7月5日〜9月15日季節
  • High country opens7月1日〜10月10日(例年)オープン
8月
  • Labor Day weekend9月5日〜7日祝日
9月
  • Coho Salmon Run9月1日〜10月31日(例年)自然
  • Roosevelt elk rut9月5日〜10月20日(例年)自然
12月
  • Hurricane Ridge winter access12月1日〜3月31日休業

オリンピック国立公園の年間イベントをすべて見る →

8月のオリンピック国立公園の混雑

その場所自体の混み具合 — 学校休暇や大型連休、編集部がタグ付けした月、そして天気の良さによる人気の高さ。快適スコアには含まれません。

ピークの混雑旅行者がハイシーズンと語る時期、The dry window、アメリカ合衆国のSummer break

旅行者の声より:「…fore a trip, and note lodging books up fast since August is peak season.」 — Tripadvisor community

123456789101112

ピークの混雑混雑ショルダーシーズン閑散

オリンピック国立公園の旅行者の声

実際に訪れた人たちの声です — 通年のメモを先に、そのあと月ごとに並べています。

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.
OlympicJanuaryRegular · 1月 · 4日前 · Tripadvisorで続きを読む ↗
Forum posters describe February around the park's popular lowland and coastal areas as often better than expected - relatively dry and mild for the season, sometimes surprisingly sunny and calm, with early wildflowers already appearing at low elevation. One regular visitor names February among their favorite times to come specifically for this reason. Posters do warn the mild stretch can end abruptly, with an icy spell and high winds possible in the final days of February or first days of March. Hurricane Ridge, the park's high-elevation viewpoint, only opens Friday-Sunday this time of year (weather permitting), with snowshoe and ski rentals available there - a reminder that the park's high country stays deep in genuine winter even when the lowland visitor areas feel unseasonably pleasant.
Tripadvisor community · 2月 · 6日前 · Tripadvisorで続きを読む ↗
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.
OlympicMarchRegular · 3月 · 4日前 · Tripadvisorで続きを読む ↗
July and August give Olympic its best odds of dry weather and its longest days, and July is the one the forum recommends if you want the averages on your side. Two crowd facts define the month. The Hoh Rainforest is one of the park's two busiest destinations in July and is packed by about 10am - a visitor who arrived at 6:30am had the car park to themselves and came back to it full. And Hurricane Ridge draws locals as well as visitors, so the queue at the entrance station can be long. The ridge has its own weather: sometimes warmer and brighter than Port Angeles below, sometimes foggy, windy and in the low 50s F. The record: 17.9C days, 8.2C nights, 2.5 precipitation days, 13 hours of sun and AQI 28.
HohBySixThirty · 7月 · 5日前 · Tripadvisorで続きを読む ↗
Olympic National Park's forum calls August close to perfect — sunny and dry with highs around 80°F by day, cooling to the 50s at night, even the Hoh Rainforest's trails dried out by this point in summer. Regulars flag wildfire smoke drifting in from British Columbia or eastern Washington as a real possibility some years, worth checking air quality before a trip, and note lodging books up fast since August is peak season.
Tripadvisor community · 8月 · 9日前 · Tripadvisorで続きを読む ↗
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.
OlympicSeptemberRegular · 9月 · 5日前 · Tripadvisorで続きを読む ↗
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.
HohRainforestOctoberRegular · 10月 · 5日前 · Tripadvisorで続きを読む ↗
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.
OlympicNPNovemberRegular · 11月 · 4日前 · Tripadvisorで続きを読む ↗

地図のオリンピック国立公園のカードから自分のメモを追加できます。

オリンピック国立公園のベストシーズンは6月〜8月(96/100) — 月別の天気 | SeasonMap