January in Biei — off-season conditions
Hardest · 4.6/10January sits at -8°C (18°F), firmly in deep-winter territory. Plan compact outdoor blocks with warm reset points between them rather than full days outside.
71 mm of water-equivalent precipitation makes this a snowy month at resort level; what falls stays as snow, with about 16 days with 6+ hours of sunshine and 9.4 hours of daylight.
That is 4.6/10 on the same scale — 11th of 12 months, versus 8.6/10 for the best month here.
Expect mid-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.
If your dates are flexible, May is materially better in Biei — 4 points higher on the same scale.
February in Biei — the hardest end of the year
Hardest · 4.9/10February sits at -6°C (21°F), firmly in deep-winter territory. Plan compact outdoor blocks with warm reset points between them rather than full days outside.
76 mm of water-equivalent precipitation makes this a snowy month at resort level; what falls stays as snow, with about 17 days with 6+ hours of sunshine and 10.5 hours of daylight.
That is 4.9/10 on the same scale — 10th of 12 months, versus 8.6/10 for the best month here.
Budget for low-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.
If your dates are flexible, May is materially better in Biei — 3.7 points higher on the same scale.
March in Biei — workable with trade-offs
Trade-offs · 6.3/10March averages -1°C (30°F), cold enough that sightseeing works in bursts rather than in one long day on foot.
At 81 mm of water-equivalent precipitation this is a snowy month at resort level — that is snowpack, not lost days — with about 22 days with 6+ hours of sunshine and 12 hours of daylight.
It scores 6.3/10 here, 8th of 12 months, against 8.6/10 in the destination's best month.
Figure on mid-season pricing, with crowds are moderate.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer, footwear you can get muddy.
Flexible dates? May scores 2.3 points higher here — enough to change the trip.
April in Biei — reliably good (4th best month)
Good · 7.9/10Expect 6°C (44°F) in April. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Budget for roughly 99 mm of rain this month — a flexible day or two helps — with about 23 days with 6+ hours of sunshine and 13.5 hours of daylight to work around it.
That is 7.9/10 on the same scale — 4th of 12 months, versus 8.6/10 for the best month here.
Budget for peak pricing, and crowds are moderate.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer, footwear you can get muddy.
May in Biei tops the year's climate scores
Best window · 8.6/10May averages 12°C (54°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Monthly rainfall reaches 112 mm — wet for this destination — but about 23 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
On our climate-comfort scale this is the top-ranked month of the year for Biei at 8.6/10 — the reference point every other month on this page is measured against.
Plan for peak pricing, with crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella, footwear you can get muddy.
June in Biei: strong conditions, 2nd of 12
Good · 8/10Temperatures hover around 17°C (63°F) — the kind of month where neither heat nor cold forces the schedule.
145 mm of rain makes this a wet month here, though with about 26 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 8/10 on the same scale — 2nd of 12 months, versus 8.6/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella, footwear you can get muddy.
July in Biei — reliably good (3rd best month)
Good · 8/10Trail conditions at 22°C (72°F) favour early starts and shaded routes in July; midday is for water breaks, not for exposed climbs.
132 mm of rain makes this a wet month here, though with about 26 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 8/10 on the same scale — 3rd of 12 months, versus 8.6/10 for the best month here.
Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.
August in Biei — reliably good (6th best month)
Good · 7.6/10August averages 22°C (71°F) — warm for the outdoors: start trails early, use shaded routes at midday, and carry more water than you think you need.
219 mm makes this the wettest stretch of the year, though about 25 days with 6+ hours of sunshine still appear — keep an indoor fallback ready.
It scores 7.6/10 here, 6th of 12 months, against 8.6/10 in the destination's best month.
Figure on peak pricing, with this is one of the busiest months here.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella, footwear you can get muddy.
September holds up well in Biei — 5th best month
Good · 7.9/10September averages 17°C (62°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Monthly rainfall reaches 148 mm — wet for this destination — but about 25 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 7.9/10 here, 5th of 12 months, against 8.6/10 in the destination's best month.
Figure on mid-season pricing, with crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella, footwear you can get muddy.
October in Biei: strong conditions, 7th of 12
Good · 7.2/10Expect 9°C (49°F) in October. A good month for city streets, viewpoints and long meals; leave swimming for another season.
142 mm of rain makes this a wet month here, though with about 24 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 7.2/10 on the same scale — 7th of 12 months, versus 8.6/10 for the best month here.
Budget for mid-season pricing, and crowds are moderate.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella, footwear you can get muddy.
November in Biei — workable with trade-offs
Trade-offs · 5.1/10At 3°C (37°F) this is proper winter weather in November: layer up and split the day between outdoor highlights and indoor stops.
151 mm of rain signals a properly wet month, with only about 17 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 5.1/10 on the same scale — 9th of 12 months, versus 8.6/10 for the best month here.
Budget for mid-season pricing, and crowds are moderate.
Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella, footwear you can get muddy.
If your dates are flexible, May is materially better in Biei — 3.5 points higher on the same scale.
December in Biei — the hardest end of the year
Hardest · 3.2/10December averages -5°C (23°F) — deep-winter cold that dictates the whole trip: short outdoor stints, indoor plans on standby, and no expectation of long walking days.
At 118 mm of water-equivalent precipitation this is a snowy month at resort level — that is snowpack, not lost days — with about 10 days with 6+ hours of sunshine and 9 hours of daylight.
It scores 3.2/10 here, 12th of 12 months, against 8.6/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella, footwear you can get muddy.
Flexible dates? May scores 5.4 points higher here — enough to change the trip.
