Nozawa Onsen (Nozawa) weather in May

May in Nozawa Onsen: nice, soaked, with clean air — not the time — 16 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Nozawa Onsen🇯🇵 Japan · Mainland Japan · Ski22
  1. 86Jan
  2. 89Feb
  3. 75Mar
  4. 34Apr
  5. 22May
  6. 19Jun
  7. 13Jul
  8. 17Aug
  9. 10Sep
  10. 15Oct
  11. 47Nov
  12. 80Dec

#7 of 12 months in Nozawa Onsen · #1401 of 1413 destinations to visit in May · comfort 22/100 (tier F)

Days
21°C
Nights
9°C
Wet days
16
Sun
9.4 h
Humidity
79%
Daylight
14 h
Nozawa Onsen, Japan
Photo: E-190 · CC BY-SA 3.0

Traveller notes on Nozawa Onsen in May

Notes from nearby Nagano (38 km away)

Nozawa Onsen doesn't have its own notes for May yet — these are about Nagano, close enough to share the season.

Forum regulars call May one of the best weather months to visit Japan generally, and Nagano Prefecture's higher-elevation spots like Karuizawa run noticeably cooler than Tokyo - low 20sC by day even in early May. Conditions vary sharply with elevation though: up in the mountains around Kamikochi, snow can still linger into early May before the valley turns lush green by month's end, with snowy peaks visible in the distance even in the warmer weeks. One caveat for wildlife-focused visitors: snow itself is unlikely in May at the Snow Monkey Park, but the monkeys' appearances are unpredictable regardless of season, with no guaranteed viewing time.
Tripadvisor community · May · 1 month ago · about Nagano · Read more on Tripadvisor ↗

Other months in Nozawa Onsen

Nozawa Onsen-forum reviews describe it as a genuine must-see in any season, posters calling the village magical once real winter conditions settle in though November itself sits ahead of that. Regulars call the free public bath houses scattered through the village a real highlight regardless of month, several posters naming this the town's defining feature even for a non-skier. Posters recommend a stay here even without hitting the slopes, regulars calling the cozy streets and local food genuinely worth the trip alone. Regulars call November a real transition month, several threads noting conditions can turn wet and unsettled well before any reliable accumulation arrives at village elevation. Posters recommend checking local booking services well ahead, several regulars describing accommodation here as tightening up fast once the season nears. The record: 11.9C days feeling like 10C, 2.9C nights, an extraordinarily high 159.9mm across over 18 days and 87 percent humidity.
NozawaOnsenNovemberRegular · November · 1 month ago · Read more on Tripadvisor ↗
Nozawa Onsen-forum threads on a September visit describe mid-month temperatures as still capable of running warm, posters citing readings under thirty degrees Celsius even this late in summer. Regulars call hiking, a zip line and summer-season activities all real September options, the village genuinely active beyond its winter reputation. Posters recommend the thirteen free public onsens as a standing local highlight regardless of season, several regulars calling them clean, safe and worth trying more than one. Regulars call artisan shop browsing along with eating and drinking a real way to fill a quieter afternoon between activities. Posters recommend planning a return visit for autumn leaves specifically if the timing allows, koyo color considered a genuine highlight later in the season. The record: 24.4C days feeling like 26C, 16.9C nights, an extraordinarily high 228.1mm across over 19 days and 76 percent humidity.
NozawaOnsenSeptemberRegular · September · 1 month ago · Read more on Tripadvisor ↗
Nozawa Onsen-forum reviews on a summer visit describe the public bathhouses as genuinely open and worth using year-round, posters calling the ritual just as rewarding in August despite the heat outside. Regulars call the village considerably quieter than winter, lift operations closed but real summer alternatives filling the gap: hiking trails, a zip line and artisan shops. Posters describe the mountain air as offering relief from valley heat, though real humidity and afternoon rain remain standing features. Regulars recommend a soak in one of the free baths regardless of season, the onsen culture the real draw independent of any outdoor activity. Posters call real breathable layers sensible given how sticky the air turns by midday. Regulars call the town a genuine year-round destination, this stretch trading winter's draw for a quieter, greener version. The record: 28.3C days feeling like 33C, 20.6C nights, an extraordinarily high 235.9mm across over 22 days and 87 percent humidity.
NozawaOnsenAugustRegular · August · 1 month ago · Read more on Tripadvisor ↗
Nozawa Onsen-forum threads on early March snow describe conditions as generally still solid by seasonal average, posters calling upper slopes reliably holding good powder even as the official competitive season winds down. Regulars call the resort's own season boundary early March, spring skiing kicking in shortly after with softer groomers. Posters describe lower-mountain snow as noticeably wetter and heavier by afternoon, an early start recommended before the day warms. Regulars call a run of fresh snowfall mid-visit genuinely common even this late, one poster reporting two full days of accumulation salvaging an otherwise so-so week. Posters recommend the village's public onsen baths as a genuine highlight regardless of snow quality, several free and open in town. Regulars call March a real value window, lift tickets and lodging cheaper than peak season. The record: 7.8C days feeling like 6C, -1.7C nights, an extraordinarily high 151.5mm across over 18 days and 82 percent humidity.
NozawaOnsenMarchRegular · March · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Nozawa Onsen's card on the map.

Nozawa Onsen climate normals — May

Daytime high21°C / 69°F😎 nice
Nighttime low9°C / 49°F
Feels like (high)21°C / 70°F
Rainfall153 mm / 6 in⛈ soaked
Rainy days16 days
Humidity79%💦 very humid
Dew point11°C / 51°F
Sunshine9.4 h/day
Daylight14.1 h
Wind11 km/h / 7 mph
Air quality (US AQI)50🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Nozawa Onsen in May

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.

BusyGolden Week in Japan(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Nozawa Onsen'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 weatherNozawa Onsen's weather peaks December–February.

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Best weatherFair weatherToughest weather

What's on in Nozawa Onsen in May

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Between the seasons

    10 May – 30 Jun · usuallyOff-season shutdownClosures

    Lifts stopped and a good share of the inns and restaurants closed until the summer. The public baths stay open, which is most of the reason to be here anyway.

  • Season

    Ski season

    28 Nov – 5 May · usually

    One long mountain above a working hot-spring village, usually open from the end of November to early May. The top runs hold snow well after the base has gone.

What's on around the world in May →

Nearby, and something's on

Within 300 km of Nozawa Onsen — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Nozawa Onsen?

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Nozawa Onsen in May — FAQ

Is May a good time to visit Nozawa Onsen?
May in Nozawa Onsen: nice, soaked, with clean air — not the time — 16 rainy days. It ranks #7 of 12 months for Nozawa Onsen on SeasonMap's comfort score (22/100).
What is the weather like in Nozawa Onsen in May?
In May, Nozawa Onsen averages a daily high of 20.6°C and a low of 9.2°C, with about 153.4 mm of rain over roughly 16.1 rainy days.
What is the air quality in Nozawa Onsen in May?
Nozawa Onsen has a mean US Air Quality Index of about 50 in May.

Within 300 km: Matsumoto's Kamikochi open season around 17 Apr – 15 Nov, and Nikko's Toshogu Grand Spring Festival on 17–18 May.