📷 Tomamu
Asia
Tomamu
Pre-season — not open yet
Projected to open December 1, 2026
Conditions data updated Tue, Jul 14, 08:07 AM UTC · informational only
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Closed for Season
Weather data is still collected for informational purposes.
Last Snowfall
May 9
Past 24 Hours
0cm
Past 48 Hours
0cm
Past 10 Days
0cm
14-Day Forecast
0cm
Snow Depth
--
Powder Days
6
2026–27 season
Overview
Tomamu is a ski resort in Asia, Japan, currently closed for the season (Projected to open December 1, 2026). Conditions last updated 2026-07-14 08:07 UTC.
Resort Guide
Tomamu is a ski resort located in central Hokkaido, Japan, offering a vast ski area with diverse terrain suitable for all levels, including powder snow and tree runs. The resort features modern accommodations, a large indoor wave pool, and family-friendly facilities, creating a relaxed and welcoming atmosphere. Signature experiences include guided backcountry tours and the unique Ice Village, which appears each winter with ice bars and activities. Tomamu stands out for its blend of natural beauty, extensive amenities, and distinctive winter attractions.
Gallery
Click to expand • 10 total photos
Terrain & lifts
Resort-reported stats for Tomamu
Lifts
6
Skiable area
884.6 ac
Longest run
4.2 km / 2.6 mi
Runs by difficulty(29 total)
Beginner
9
30% of terrain
Intermediate
11
40% of terrain
Advanced
9
30% of terrain
Run counts estimated from resort-reported totals and terrain mix.
Lift fleet
- Gondola1
Resort Info
Season dates
Future dates are operator estimates and may change.
Ski passes
No ski pass found
Access tiers change by season — confirm benefits on the pass operator's site.
Top Après Ski
Mina Mina Beach Lounge – Known for its unique indoor beach setting and relaxed après-ski atmosphere, this lounge at Hoshino Resorts Tomamu offers cocktails and light bites with views of the wave pool, making it a popular spot to unwind after a day on the slopes.
Snow Summary
Updated Jul 14, 2026 at 8:07 AM
Historical data from Open-Meteo archive • Forecast from ECMWF IFS model
Snowfall Forecast Maps
Hokkaido region
Current Conditions
Reported Tue, Jul 14, 08:07 AM UTC
Base
596m
Temp
21.6°C
Wind
12.6km/h
Snow Depth
--
14-Day Forecast
0.2cm
Mid-Mountain
918m
Temp
17.3°C
Wind
3.9km/h
Snow Depth
--
14-Day Forecast
0.2cm
Summit
1239m
Temp
17.4°C
Wind
12.6km/h
Snow Depth
--
14-Day Forecast
0.1cm
Local Reports
0 reportsDaily Snowfall Forecast by Model
Black line = verified SnowSure™ blend (not a simple average). Weights update weekly from measured snowfall at SNOTEL stations and resort reports.
SnowSure™ blend — verified model weighting
The black line is not a simple average. For Tomamu (japan), we combine seven global weather models using weights learned from daily forecast verification — comparing each model's prediction to measured snowfall (SNOTEL, resort reports, ERA5).
- 1.Horizon buckets: days 1–3, 4–7, and 8–14 each get separate weights — short-range skill differs from long-range.
- 2.Regional calibration: weights come from verified error in this geography (Rockies, Alps, Japan, etc.), recalculated weekly.
- 3.Ground truth only: we never grade a forecast against another model — only against measured snow.
Building verification history for this resort.
How we verify forecasts →Hourly Forecast Detail
AM / PM / Night breakdown with wind and freezing level
NWP models refresh up to 4× daily · Last synced Jul 14, 8:07 AM
Today 19 / 150.9mm | Wed, Jul 15 19 / 152.1mm | Thu, Jul 16 19 / 1524.3mm | Fri, Jul 17 22 / 14 | Sat, Jul 18 19 / 143.8mm | Sun, Jul 19 14 / 1250.7mm | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night |
| Snow (cm) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Precip (mm) | 0.3 | 0.3 | 0.3 | 0.8 | 1.1 | 0.2 | 8.7 | 1.2 | 14.4 | 0 | 0 | 0 | 0.8 | 2 | 1 | 15.8 | 14.2 | 20.7 |
| Temp (°C) | 17 | 19 | 16 | 18 | 19 | 16 | 16 | 18 | 16 | 19 | 21 | 15 | 18 | 18 | 15 | 13 | 13 | 13 |
| Wind (km/h) | 5 | 12 | 7 | 15 | 16 | 8 | 22 | 14 | 11 | 12 | 12 | 8 | 5 | 4 | 6 | 16 | 11 | 11 |
| Gusts (km/h) | 15 | 30 | 16 | 34 | 41 | 20 | 50 | 35 | 25 | 27 | 32 | 18 | 16 | 21 | 17 | 18 | 29 | 23 |
14-Day Snow Forecast by Model
Summit elevation (1239m)
10-Day Forecast
Today
14
🌧️
19.2°
15.2°
13 km/h
Wed
15
🌧️
19.2°
15.1°
17 km/h
Thu
16
🌧️
19.4°
14.6°
23 km/h
Fri
17
☁️
21.8°
13.8°
14 km/h
Sat
18
🌧️
19.4°
13.8°
9 km/h
Sun
19
🌧️
14.1°
11.8°
17 km/h
Mon
20
🌧️
13.2°
10.9°
14 km/h
Tue
21
🌧️
14.7°
10.9°
12 km/h
Wed
22
🌧️
16.5°
9.9°
13 km/h
Thu
23
🌧️
15.7°
9.9°
6 km/h
Summit elevation (1239m) • ECMWF model
Season vs Historic
Updated Tue, Jul 14, 08:07 AM UTC
0cm
Season Total
This Season to Date
—
vs 5-Year Avg
Off-season · 249cm full-season avg
—
vs 30-Year Avg
Off-season · 249cm full-season avg
249cm
5-Yr Avg by Now
Over the past five years, average seasonal snowfall has slightly exceeded the 30-year average, indicating a modest upward trend. The most recent season's snowfall is 13% above the 5-year average and 14% above the 30-year average, marking a significant increase compared to historical norms. Despite some year-to-year variability, there has been a consistent pattern of above-average snowfall, with no major declines or anomalies observed in the recent period.
Tomamu Snow History
Average annual snowfall is 296cm with an average of 131 snowfall days per season. The table below shows monthly averages across 30 seasons of archive data (modeled snowpack at mid-elevation).
| Month | Avg Snowfall | Snowfall Days | Avg Base Depth | Max Base Depth | Biggest Snowfall |
|---|---|---|---|---|---|
| November | 33.8cm | 17 days | 6cm | 19cm | 8.7cm |
| December | 61cm | 25 days | 36cm | 59cm | 13.2cm |
| January | 53.7cm | 24 days | 69cm | 84cm | 13cm |
| February | 47.3cm | 23 days | 87cm | 99cm | 11.8cm |
| March | 58.9cm | 23 days | 96cm | 110cm | 14.7cm |
| April | 32.5cm | 14 days | 67cm | 94cm | 10.9cm |
| May | 4.6cm | 2 days | 10cm | 40cm | 3.5cm |
Source: SnowSure archive · Open-Meteo ERA5 reanalysis at mid-elevation. Depth is modeled, not resort-reported.
Season at a Glance
Next season(2026-27)
Opens Dec 1, 2026
Multi-season averages will appear once SnowSure has tracked more than one full season.
Best Months to Visit
January
Peak Powder
February
Peak Powder
March
Good
December
Good
Note: Based on typical powder season patterns for this region.
