ウィスラーの月別の天気

January is Whistler's quiet, snowy month and the forum states the trade plainly: bigger dumps and better snow than March, but grey-bird days rather than blue ones, and fog that sits mid-mountain or arrives with a temperature inversion. Early January is the lull, because everyone has already spent their money and their travel on Christmas; the last two weeks of the month and the start of February are quiet again with children back at school, and prices follow the crowds down. On the cold they are unbothered - with proper ski clothing January is not meaningfully colder than the rest of the season. The record: 0.8C days that feel like -2C, -4.5C nights, 247.8cm of snow, 16.2 precipitation days carrying 224.4mm and only 3.6 hours of sun.

One blogger's honest take on a winter season spent living and working in Whistler: the skiing lived up to the hype (70-plus days on the slopes), but what stuck was liking the town's non-ski side just as much — a night walk through Vallea Lumina's lit-up forest trail, in particular. Their verdict for a first-timer: budget at least one non-ski day.

Whistler-forum threads on an April visit describe Whistler Mountain and the Peak 2 Peak gondola as genuinely closing around April nineteenth, posters naming Blackcomb as staying open considerably later into mid or late May instead. Regulars call spring snow genuinely different, several posters naming melt-freeze corn conditions and heavier grooming as standard by this point. Posters call roughly eighty percent of terrain still genuinely open in April despite the changed conditions, several regulars naming good alpine skiing as still realistic this late. Regulars call checking which mountain is open before an April day a real necessity, several threads naming this the key difference between a good and disappointing trip. Posters recommend real flexibility around which side of the resort you ski, several regulars calling this standard given how closing dates differ between the two mountains. The record: 11.8C days, 0.6C nights, 87.9mm across over 11 days and 76 percent humidity.

Whistler-forum threads on a May visit describe this as genuinely a transitional month, posters calling the mountain still open for lift-served descents into late May even as hiking access on the same terrain stays closed. Regulars call the Victoria Day long weekend, typically mid-to-late May, the real turning point when the resort fully opens for summer. Posters call some mountain biking parks and lower trails open earlier in May, though not the full summer network yet. Regulars recommend planning around this transitional window carefully, activities here more limited than a full summer visit would offer. Posters recommend checking current lift, trail and park status directly before a May trip, conditions shifting fast as the season turns. The record: 18.2C days feeling like 18C, 4.8C nights, an extraordinarily high 58.4mm across over 8 days and 66 percent humidity.

Whistler-forum threads on July biking trips describe conditions as generally favorable, a mix of clear stretches and passing showers keeping the bike park's trails in genuinely good shape rather than dusty and loose. Posters call August noticeably warmer and busier by comparison, early July still catching thinner crowds and better trail condition before the peak summer rush fully arrives. Regulars recommend Blackcomb Highlands or the area north of Lorimer Road for a quieter base, away from the noisier village core, while staying close enough to walk to lifts, coffee and groceries. Layers matter even in midsummer - warm valley afternoons can turn noticeably cooler once the lifts climb toward alpine elevation. Posters call the bike park itself one of the best in North America regardless of exact dates within the month. The record: 25.3C days feeling like 26C, 10.6C nights, 72 percent humidity and 15.4 hours of daylight.

Forum posters describe the Whistler valley in August as genuinely warm, commonly in the mid-to-high 20sC, warm enough that swimming in Lost Lake or Alta Lake is a real option and shorts and t-shirts are the standard outfit. Posters consistently rate August as a better weather bet than July, and name late July through September as the prime window for alpine hiking specifically, with the ski-resort infrastructure (lifts, gondola rides) doubling as summer sightseeing access. Posters recommend building flexibility into a day's plan regardless of forecast, given mountain weather can still shift, but generally describe Whistler summer as just as much of a draw as its winter ski season, with hiking, cycling, canoeing, kayaking and even bear-watching all named as popular August activities.

Whistler-forum threads on September conditions describe this as genuinely one of the favorite local months, often bringing an Indian-summer stretch before the coastal rainy season sets in properly around mid-October. Posters call daytime conditions comfortably warm and evenings noticeably cool, layering the standing advice for anyone spending a full day outside. Regulars are direct conditions can still swing toward a rainy, cold day with a dusting possible up on the mountain itself, nothing entirely guaranteed even in a typically favorable month. Posters describe fall colors through the alpine and valley as a real highlight, hiking trails noticeably quieter midweek than peak summer. Regulars call thinner crowds a genuine bonus of visiting in September over July or August. Posters recommend a waterproof shell regardless of how settled the forecast looks. The record: 19.3C days feeling like 19C, 7.4C nights, a notably high 5.8cm of fresh accumulation and 79 percent humidity.

Whistler-forum threads on November are blunt: this is genuinely the riskiest month to bank on for skiing, posters calling the very end of the month the best shot if conditions cooperate at all. Regulars describe opening weekend as typically pegged to American Thanksgiving, natural snow at village level frequently thin or absent right into December regardless of the calendar date. Posters call the mountain's snowmaking a real backup during cold snaps, capable of opening terrain without much natural accumulation. Regulars recommend checking the current snow report the week of rather than booking blind this early. Posters describe the village as fully open and pleasant regardless of ski conditions, restaurants and shops running a normal schedule. Regulars call December the considerably safer bet if flexible dates are an option. The record: 4.4C days feeling like 2C, -1C nights, an extraordinarily high 241.9mm across over 17 days and 88 percent humidity.