ジャスパー 5月の天気
ジャスパーの5月:涼しい、ときどき雨、空気がきれい — 訪れるのに絶好の時期。
2026年9月更新 · ERA5再解析による気候平年値
ジャスパーでは12か月中4位 · 5月に訪れたい旅行先で1413か所中329位 · 快適スコア87/100(Aランク)
- 日中
- 17°C
- 夜
- 1°C
- 雨の日
- 7
- 日照
- 12.3 h
- 湿度
- 72%
- 日の長さ
- 16 h

5月のジャスパーについての旅行者の声
Jasper-forum threads on May weather describe this as genuinely unpredictable, posters calling the long weekend capable of lovely warm conditions or a proper snowstorm dropping several inches, depending on the year. Regulars call this an exceptional month for wildlife, animals emerging from winter and genuinely active, real odds of spotting a bear from the car alongside bighorn sheep, eagles and moose. Posters describe most higher-elevation trails as still blocked well into May, plenty of lower-elevation day hikes staying accessible meanwhile. Regulars call Maligne Lake still capable of holding ice this early, a real consideration for anyone planning the boat cruise rather than just the drive out. Posters recommend real layers regardless of how the day starts, conditions shifting fast. Regulars recommend checking current trail and lake status before finalizing a May itinerary. The record: 16.7C days feeling like 15C, 0.8C nights, 39.2mm across over 7 days and 72 percent humidity.
ジャスパーのほかの月
Jasper-forum threads on an October visit describe early-month days as genuinely mild, posters naming temperatures sliding from the seventies down into the fifties and sixties Fahrenheit by late October. Regulars call the Icefields Parkway and higher elevations genuinely likely to see snow even when the valley just gets rain, several posters recommending layers and a warm hat. Posters call late September into early October genuinely peak fall color in the valley, several regulars naming Maligne Canyon, Medicine Lake and Maligne Lake as standout spots. Regulars call Canadian Thanksgiving in mid-October genuinely the real cutoff, several threads naming this when attractions and campgrounds start closing for the season. Posters recommend real three-night stays to explore the Parkway properly, several regulars calling this standard given how much ground there is to cover before things shut down. The record: 9.9C days, -2.6C nights, 41.4mm across over 10 days and 82 percent humidity.
Jasper-forum threads on February describe this as genuinely full winter, posters calling deep snow cover and consistently cold temperatures the standard rather than the exception. Regulars call the daily range considerable though, some February days turning surprisingly mild and sunny while others stay bitterly cold throughout. Posters recommend proper layered winter gear regardless of the forecast, conditions capable of shifting fast. Regulars describe cross-country skiing, snowshoeing and skating as all popular this month, a real alternative for anyone not downhill skiing at Marmot Basin. Posters call the ice walk through Maligne Canyon a genuine highlight specific to this season, frozen waterfalls accessible only when conditions allow. Regulars recommend checking current road conditions before driving in from Calgary, mountain passes prone to closure after a heavier system. The record: -1.9C days feeling like -5C, -14.7C nights, 26.4mm across 7 days and 77 percent humidity.
Jasper-forum threads on early-April weather describe this as a genuine in-between month, posters calling the townsite often spring-like with most snow gone at low elevations while higher terrain stays firmly wintry. Regulars call ice the real hazard for valley hikes, daily melt-and-refreeze cycles leaving shady sections genuinely slick even when the trail looks clear. Posters describe conditions as capable of turning wet, cold and snowy with little warning despite the spring date, real layers standing advice. Regulars call early spring a strong window for bear sightings, corridors like Signal Mountain seeing real activity as animals emerge. Posters recommend checking current trail conditions, ice a bigger variable than the general forecast suggests. Regulars call snowshoeing and cross-country skiing still viable depending on location. The record: 10.4C days feeling like 7C, -4.4C nights, a notably high 42.3cm of fresh accumulation and 71 percent humidity.
Jasper-forum threads on the best time to visit name July as full, genuine summer, virtually every trail clear at this point and extremely long daylight hours stretching well past 10pm. Posters describe mornings as noticeably cool even on a warm day, with an afternoon storm at higher elevation entirely possible despite a clear start. Wildlife viewing is called excellent throughout the month, elk regularly seen right in town and black bears with cubs a common early-morning and evening sighting along quieter roads. Rivers run well for rafting this time of year, a popular July activity alongside hiking and wildlife drives. Regulars are direct July is the single busiest month of the year here, Canada Day weekend specifically named the peak crowd point, with several posters recommending June or September instead for anyone prioritizing a quieter trip over guaranteed clear trails. The record: 23.9C days feeling like 21C, 7.3C nights, 70 percent humidity and 16.2 hours of daylight.
地図のジャスパーのカードから自分のメモを追加できます。
ジャスパーの気候平年値 — 5月
ERA5再解析による月平均値です。AQIはその月の平均US AQI(米国大気質指数)です。
5月のジャスパーの混雑
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。
ショルダーシーズン天気は平年並みの月(推定)
ピークの混雑混雑ショルダーシーズン閑散
ジャスパーの天気が良い月
この旅行先自身の一年間の快適スコアでランキングしています — 混み具合とは別のものです(上の「混雑」を参照)。
天気はまずまずジャスパーの天気が最も良いのは6月、8月、9月です — ひと続きのシーズンではなく、別々の時期です。
天気が最高天気はまずまず天気が厳しい
5月のジャスパーのイベント
毎年の季節のイベント、自然の見どころ、休業、祝日 — 厳選し出典を明記しています。
- 休業
Icefields Parkway in winter
11月1日〜6月15日 · 例年リスクThe road to Lake Louise stays open but loses its services: no fuel for 230 km, ploughing only in daylight hours from October to May, and avalanche-control closures that can shut it with no notice. 出典 ↗
- 季節
Marmot Basin ski season
11月15日〜5月1日 · 例年Marmot usually opens in the third week of November and runs into April or early May. It is the quietest big hill in the Rockies, largely because getting to Jasper in winter is a four-hour drive nobody does casually. 出典 ↗
- 季節
Snow season
スキーシーズンAbout 32 cm of snow falls in the month.
気候の平年値から算出
近くで開催中のイベント
ジャスパーから300 km以内 — 日帰りやちょっとした移動で行けて、今月何かがある場所です。快適スコアには含まれません。
ジャスパーはどこにある?
5月のジャスパー — よくある質問
- 5月はジャスパーを訪れるのに良い時期ですか?
- ジャスパーの5月:涼しい、ときどき雨、空気がきれい — 訪れるのに絶好の時期。SeasonMapの快適スコアでは、ジャスパーの12か月中4位です(87/100)。
- 5月のジャスパーはどんな天気ですか?
- 5月のジャスパーは、平均最高気温16.7°C、最低気温0.8°C、降水量は約39.2 mmで、雨の日はおよそ7.1日です。
- 5月のジャスパーの大気質はどうですか?
- 5月のジャスパーの米国大気質指数(US AQI)は、平均約49です。
- 5月のジャスパーは雪が降りますか?
- 5月のジャスパーの降雪量は、およそ32.3 cmです。
300 km圏内:RevelstokeのMeadows in the Sky Parkway(5月16日〜10月20日ごろ)、Lake LouiseのSki season(11月5日〜5月5日ごろ)。