Each colour starts at the value shown. Wind colours match across all three units. Dry cells stay neutral. Colours describe the displayed values, not official weather warnings.
ECMWF IFS · Run 2026-10-09 18:00:00 UTC · 6 days · Times: Asia/Tokyo.
Coordinates: 36.7170511°N, 137.8586213°E · Requested elevation: 746 m. Model terrain: 1383 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
Outside the available profile, temperature uses an estimated 5.5°C/km height correction; wind retains the nearest available model-level value. Humidity is estimated with adjusted pressure and temperature.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.
Day Local time Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Saturday, 10/10 03:00 13.1 62 1 1 1B W — — 1024 3186 Clear 5% cloud 06:00 12.2 63 1 0 0B W 0.00 0 1024 3182 Clear 5% cloud 09:00 18.6 53 2 1 1B SE 0 0 1024 3186 Clear 3% cloud 12:00 21.6 47 2 1 1B SE 0.00 0 1022 3178 Clear 2% cloud 15:00 21 56 3 2 1B NE 0.00 0 1021 3172 Partly cloudy 50% cloud 18:00 16.1 79 2 1 1B N 0.00 0 1022 3175 Partly cloudy 39% cloud 21:00 13.4 82 0 0 0B S 0 0 1023 3178 Cloudy 64% cloud Sunday, 11/10 00:00 10.9 83 1 0 0B W 0 0 1022 3173 Overcast 83% cloud 03:00 10.3 82 1 1 1B NW 0.00 0 1021 3165 Cloudy 67% cloud 06:00 9.8 82 2 1 1B NW 0 0 1022 3165 Cloudy 71% cloud 09:00 18.5 54 2 1 1B N 0.00 0 1023 3176 Clear 3% cloud 12:00 21.4 46 5 3 1B N 0 0 1021 3171 Clear 11% cloud 15:00 20.2 56 5 3 1B NE 0.00 0 1020 3163 Partly cloudy 33% cloud 18:00 14.9 78 1 1 0B N 0.00 0 1021 3166 Partly cloudy 28% cloud 21:00 12.9 80 0 0 0B SE 0 0 1021 3169 Partly cloudy 36% cloud Monday, 12/10 00:00 12.5 80 1 0 0B S 0 0 1021 3164 Partly cloudy 23% cloud 03:00 12.4 81 0 0 0B W 0 0 1021 3159 Partly cloudy 21% cloud 06:00 11.7 80 0 0 0B NW 0.00 0 1021 3161 Partly cloudy 30% cloud 09:00 18.5 61 3 2 1B SE 0 0 1022 3170 Cloudy 68% cloud 12:00 21.1 55 2 1 1B E 0.01 0 1020 3162 Cloudy 69% cloud 15:00 20.1 63 3 2 1B E 0.12 0 1020 3155 Partly cloudy 47% cloud 18:00 15.8 82 3 1 1B SE 0.04 0 1021 3158 Cloudy 59% cloud 21:00 13.8 82 2 1 1B S 0 0 1021 3162 Cloudy 56% cloud Tuesday, 13/10 00:00 13 82 1 1 1B SW 0 0 1021 3154 Partly cloudy 21% cloud 03:00 12.9 82 1 0 0B SW 0 0 1020 3145 Partly cloudy 29% cloud 06:00 12.1 85 2 1 1B S 0 0 1020 3144 Cloudy 76% cloud 09:00 18.3 68 3 2 1B S 0.00 0 1020 3145 Partly cloudy 32% cloud 12:00 21.5 53 1 0 0B S 0.01 0 1017 3132 Partly cloudy 42% cloud 15:00 20.7 61 2 1 1B SE 0.61 0 1015 3122 Partly cloudy 25% cloud 18:00 15.8 81 3 1 1B S 0.33 0 1016 3117 Partly cloudy 39% cloud 21:00 14.7 82 4 2 1B S 0.01 0 1015 3111 Cloudy 67% cloud Wednesday, 14/10 00:00 14.8 79 5 3 1B S 0 0 1013 3096 Cloudy 68% cloud 03:00 14.3 81 4 2 1B S 2.9 0 1011 3077 Overcast 86% cloud 06:00 14.7 81 3 2 1B SW 4.1 0 1010 3069 Cloudy 69% cloud 09:00 16.6 83 3 2 1B W 5.9 0 1010 3066 Overcast 96% cloud 12:00 15.9 83 5 3 1B W 13.3 0 1010 3052 Overcast 97% cloud 15:00 16.1 68 7 4 2B NW 1.5 0 1010 3044 Overcast 90% cloud 18:00 12.8 81 8 5 2B NW 3.6 0 1013 2940 Cloudy 73% cloud 21:00 10.4 81 7 4 2B NW 0.39 0 1016 2873 Cloudy 68% cloud Thursday, 15/10 00:00 9.2 81 6 3 1B NW 0.40 0 1018 3059 Cloudy 70% cloud 03:00 7.2 83 5 3 1B NW 0.00 0 1019 3066 Overcast 92% cloud 06:00 6.5 83 4 2 1B NW 0.01 0 1020 3079 Overcast 95% cloud 09:00 11.8 59 1 1 0B N 0.01 0 1021 3098 Partly cloudy 27% cloud 12:00 15.6 50 2 1 1B N 0.01 0 1019 3102 Clear 18% cloud 15:00 14.7 57 4 2 1B N 0.01 0 1020 3107 Partly cloudy 30% cloud 18:00 9.3 78 1 1 1B N 0 0 1022 3120 Clear 8% cloud 21:00 8 76 1 0 0B S 0 0 1024 3131 Clear 6% cloud Friday, 16/10 00:00 7.8 71 1 1 1B S 0 0 1023 3135 Clear 1% cloud 03:00 7.6 67 1 1 1B S 0 0 1023 3136 Clear 17% cloud |
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Source: ECMWF · CC BY 4.0 · Processed by Snow Report.
Hakuba Iwatake is a downhill ski area in Nagano Prefecture, Japan. Mapped terrain includes easy, intermediate, advanced routes. Its mapped lift network extends from approximately 746 to 1283 metres above sea level.
Data: OpenSkiData / OpenSkiMap, OpenStreetMap contributors (ODbL), Skimap.org, Who's On First, Mapterhorn.
ECMWF IFS · Run 2026-10-09 18:00:00 UTC · 6 days · Times: Asia/Tokyo.
Coordinates: 36.7170511°N, 137.8586213°E · Requested elevation: 746 m. Model terrain: 1383 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
Outside the available profile, temperature uses an estimated 5.5°C/km height correction; wind retains the nearest available model-level value. Humidity is estimated with adjusted pressure and temperature.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.
Day Local time Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Saturday, 10/10 03:00 13.1 62 1 1 1B W — — 1024 3186 Clear 5% cloud 06:00 12.2 63 1 0 0B W 0.00 0 1024 3182 Clear 5% cloud 09:00 18.6 53 2 1 1B SE 0 0 1024 3186 Clear 3% cloud 12:00 21.6 47 2 1 1B SE 0.00 0 1022 3178 Clear 2% cloud 15:00 21 56 3 2 1B NE 0.00 0 1021 3172 Partly cloudy 50% cloud 18:00 16.1 79 2 1 1B N 0.00 0 1022 3175 Partly cloudy 39% cloud 21:00 13.4 82 0 0 0B S 0 0 1023 3178 Cloudy 64% cloud Sunday, 11/10 00:00 10.9 83 1 0 0B W 0 0 1022 3173 Overcast 83% cloud 03:00 10.3 82 1 1 1B NW 0.00 0 1021 3165 Cloudy 67% cloud 06:00 9.8 82 2 1 1B NW 0 0 1022 3165 Cloudy 71% cloud 09:00 18.5 54 2 1 1B N 0.00 0 1023 3176 Clear 3% cloud 12:00 21.4 46 5 3 1B N 0 0 1021 3171 Clear 11% cloud 15:00 20.2 56 5 3 1B NE 0.00 0 1020 3163 Partly cloudy 33% cloud 18:00 14.9 78 1 1 0B N 0.00 0 1021 3166 Partly cloudy 28% cloud 21:00 12.9 80 0 0 0B SE 0 0 1021 3169 Partly cloudy 36% cloud Monday, 12/10 00:00 12.5 80 1 0 0B S 0 0 1021 3164 Partly cloudy 23% cloud 03:00 12.4 81 0 0 0B W 0 0 1021 3159 Partly cloudy 21% cloud 06:00 11.7 80 0 0 0B NW 0.00 0 1021 3161 Partly cloudy 30% cloud 09:00 18.5 61 3 2 1B SE 0 0 1022 3170 Cloudy 68% cloud 12:00 21.1 55 2 1 1B E 0.01 0 1020 3162 Cloudy 69% cloud 15:00 20.1 63 3 2 1B E 0.12 0 1020 3155 Partly cloudy 47% cloud 18:00 15.8 82 3 1 1B SE 0.04 0 1021 3158 Cloudy 59% cloud 21:00 13.8 82 2 1 1B S 0 0 1021 3162 Cloudy 56% cloud Tuesday, 13/10 00:00 13 82 1 1 1B SW 0 0 1021 3154 Partly cloudy 21% cloud 03:00 12.9 82 1 0 0B SW 0 0 1020 3145 Partly cloudy 29% cloud 06:00 12.1 85 2 1 1B S 0 0 1020 3144 Cloudy 76% cloud 09:00 18.3 68 3 2 1B S 0.00 0 1020 3145 Partly cloudy 32% cloud 12:00 21.5 53 1 0 0B S 0.01 0 1017 3132 Partly cloudy 42% cloud 15:00 20.7 61 2 1 1B SE 0.61 0 1015 3122 Partly cloudy 25% cloud 18:00 15.8 81 3 1 1B S 0.33 0 1016 3117 Partly cloudy 39% cloud 21:00 14.7 82 4 2 1B S 0.01 0 1015 3111 Cloudy 67% cloud Wednesday, 14/10 00:00 14.8 79 5 3 1B S 0 0 1013 3096 Cloudy 68% cloud 03:00 14.3 81 4 2 1B S 2.9 0 1011 3077 Overcast 86% cloud 06:00 14.7 81 3 2 1B SW 4.1 0 1010 3069 Cloudy 69% cloud 09:00 16.6 83 3 2 1B W 5.9 0 1010 3066 Overcast 96% cloud 12:00 15.9 83 5 3 1B W 13.3 0 1010 3052 Overcast 97% cloud 15:00 16.1 68 7 4 2B NW 1.5 0 1010 3044 Overcast 90% cloud 18:00 12.8 81 8 5 2B NW 3.6 0 1013 2940 Cloudy 73% cloud 21:00 10.4 81 7 4 2B NW 0.39 0 1016 2873 Cloudy 68% cloud Thursday, 15/10 00:00 9.2 81 6 3 1B NW 0.40 0 1018 3059 Cloudy 70% cloud 03:00 7.2 83 5 3 1B NW 0.00 0 1019 3066 Overcast 92% cloud 06:00 6.5 83 4 2 1B NW 0.01 0 1020 3079 Overcast 95% cloud 09:00 11.8 59 1 1 0B N 0.01 0 1021 3098 Partly cloudy 27% cloud 12:00 15.6 50 2 1 1B N 0.01 0 1019 3102 Clear 18% cloud 15:00 14.7 57 4 2 1B N 0.01 0 1020 3107 Partly cloudy 30% cloud 18:00 9.3 78 1 1 1B N 0 0 1022 3120 Clear 8% cloud 21:00 8 76 1 0 0B S 0 0 1024 3131 Clear 6% cloud Friday, 16/10 00:00 7.8 71 1 1 1B S 0 0 1023 3135 Clear 1% cloud 03:00 7.6 67 1 1 1B S 0 0 1023 3136 Clear 17% cloud |
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Source: ECMWF · CC BY 4.0 · Processed by Snow Report.
ECMWF IFS · Run 2026-10-09 18:00:00 UTC · 6 days · Times: Asia/Tokyo.
Coordinates: 36.7292989°N, 137.8402053°E · Requested elevation: 1283 m. Model terrain: 1428 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
Outside the available profile, temperature uses an estimated 5.5°C/km height correction; wind retains the nearest available model-level value. Humidity is estimated with adjusted pressure and temperature.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.
Day Local time Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Saturday, 10/10 03:00 10.3 68 1 1 1B W — — 1024 3186 Clear 3% cloud 06:00 9.2 71 1 0 0B W 0.00 0 1024 3182 Clear 3% cloud 09:00 15.8 59 2 1 1B SE 0 0 1024 3186 Clear 2% cloud 12:00 18.7 52 2 1 1B E 0.00 0 1022 3178 Clear 2% cloud 15:00 17.9 64 3 2 1B NE 0.00 0 1021 3172 Cloudy 57% cloud 18:00 13.2 90 1 1 1B N 0.00 0 1023 3175 Partly cloudy 45% cloud 21:00 10.5 93 1 0 0B S 0 0 1023 3178 Cloudy 71% cloud Sunday, 11/10 00:00 7.8 94 1 0 0B SW 0 0 1022 3173 Overcast 86% cloud 03:00 7.1 93 1 1 1B NW 0.00 0 1021 3165 Cloudy 72% cloud 06:00 6.8 93 2 1 1B NW 0 0 1022 3165 Cloudy 75% cloud 09:00 15.8 60 2 1 1B N 0.00 0 1023 3176 Clear 2% cloud 12:00 18.5 51 5 3 1B N 0 0 1021 3171 Clear 12% cloud 15:00 17.2 63 6 3 1B NE 0.00 0 1020 3163 Partly cloudy 31% cloud 18:00 11.8 88 1 0 0B N 0.00 0 1021 3166 Partly cloudy 30% cloud 21:00 10 90 1 0 0B SE 0 0 1021 3168 Partly cloudy 34% cloud Monday, 12/10 00:00 9.6 90 1 0 0B S 0 0 1021 3164 Partly cloudy 21% cloud 03:00 9.4 92 0 0 0B SW 0 0 1021 3159 Clear 20% cloud 06:00 8.8 92 0 0 0B W 0.00 0 1021 3161 Partly cloudy 30% cloud 09:00 15.8 68 3 2 1B SE 0 0 1022 3170 Cloudy 71% cloud 12:00 18.2 61 2 1 1B E 0.00 0 1020 3162 Cloudy 71% cloud 15:00 17 71 3 2 1B E 0.10 0 1020 3155 Cloudy 54% cloud 18:00 12.9 93 3 2 1B SE 0.04 0 1021 3158 Cloudy 64% cloud 21:00 10.9 92 2 1 1B S 0 0 1021 3162 Cloudy 50% cloud Tuesday, 13/10 00:00 10 92 1 1 1B SW 0 0 1021 3154 Clear 17% cloud 03:00 9.9 93 1 0 0B SW 0 0 1020 3145 Partly cloudy 26% cloud 06:00 9.1 96 2 1 1B S 0 0 1020 3144 Cloudy 74% cloud 09:00 15.5 76 3 1 1B S 0.00 0 1019 3145 Partly cloudy 26% cloud 12:00 18.6 59 0 0 0B E 0.01 0 1017 3132 Partly cloudy 48% cloud 15:00 17.7 69 2 1 1B SE 0.70 0 1015 3122 Partly cloudy 26% cloud 18:00 12.8 92 3 2 1B S 0.34 0 1016 3117 Partly cloudy 40% cloud 21:00 11.7 93 5 3 1B S 0.01 0 1015 3111 Cloudy 74% cloud Wednesday, 14/10 00:00 11.9 89 5 3 1B S 0 0 1013 3096 Cloudy 73% cloud 03:00 11.5 91 4 2 1B S 3.2 0 1011 3076 Overcast 87% cloud 06:00 11.9 92 4 2 1B SW 4.5 0 1010 3068 Cloudy 71% cloud 09:00 13.6 94 3 2 1B W 6.8 0 1011 3066 Overcast 97% cloud 12:00 12.7 94 6 3 1B W 14.4 0 1010 3052 Overcast 97% cloud 15:00 12.8 78 7 4 2B NW 1.5 0 1010 3044 Overcast 92% cloud 18:00 9.7 92 9 5 2B NW 4.1 0 1013 2919 Cloudy 77% cloud 21:00 7.4 92 7 4 2B NW 0.45 0 1016 2847 Cloudy 74% cloud Thursday, 15/10 00:00 6.3 92 6 3 1B NW 0.46 0 1018 3059 Cloudy 75% cloud 03:00 4.2 95 5 3 1B NW 0.00 0 1019 3066 Overcast 94% cloud 06:00 3.5 95 3 2 1B NW 0.01 0 1021 3079 Overcast 96% cloud 09:00 8.8 67 1 0 0B N 0.01 0 1021 3098 Partly cloudy 25% cloud 12:00 12.7 56 2 1 1B N 0.01 0 1019 3102 Clear 18% cloud 15:00 11.6 65 4 2 1B N 0.01 0 1020 3107 Partly cloudy 30% cloud 18:00 6.3 89 1 1 0B N 0 0 1023 3120 Clear 7% cloud 21:00 5.1 87 1 0 0B S 0 0 1024 3130 Clear 5% cloud Friday, 16/10 00:00 4.8 81 1 1 1B S 0 0 1023 3135 Clear 1% cloud 03:00 4.6 76 1 1 1B S 0 0 1023 3136 Clear 16% cloud |
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