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 · Model run: Next update expected:
Day Local time Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Thursday, 05/11 00:00 7.3 98 7 4 2B E 5.3 0 1027 3138 Overcast 100% cloud 03:00 7.5 98 5 3 1B E 4.5 0 1024 3131 Overcast 100% cloud 06:00 8 98 4 2 1B E 2.1 0 1022 3117 Overcast 100% cloud 09:00 10.3 94 7 4 2B SE 0.05 0 1019 3104 Overcast 100% cloud 12:00 13.2 79 3 2 1B S 0.09 0 1014 3075 Overcast 97% cloud 15:00 14.3 75 3 2 1B SE 0.04 0 1011 3055 Partly cloudy 41% cloud 18:00 9.9 92 3 2 1B W 0 0 1010 3047 Cloudy 53% cloud 21:00 8.5 95 3 2 1B W 0 0 1008 3033 Cloudy 51% cloud Friday, 06/11 00:00 7.6 95 5 3 1B W 0 0 1005 3016 Cloudy 66% cloud 03:00 7.5 92 9 5 2B W 0.14 0 1003 2999 Cloudy 56% cloud 06:00 7.6 93 10 6 2B W 0.52 0 1004 2999 Partly cloudy 42% cloud 09:00 14 76 11 6 2B W 0.06 0 1007 3014 Partly cloudy 37% cloud 12:00 17 43 22 12 4B W 0.04 0 1006 3014 Clear 13% cloud 15:00 16.3 40 19 11 3B W 0 0 1007 3020 Partly cloudy 22% cloud 18:00 11 59 13 7 3B W 0 0 1010 3002 Partly cloudy 22% cloud 21:00 8.2 68 13 7 3B W 0 0 1012 2689 Partly cloudy 20% cloud Saturday, 07/11 00:00 6.2 76 10 6 2B W 0.02 0 1014 2206 Partly cloudy 34% cloud 03:00 5.2 79 12 7 3B W 0.04 0 1015 1928 Partly cloudy 49% cloud 06:00 4.8 75 12 6 2B W 0 0 1017 1766 Cloudy 63% cloud 09:00 7.7 57 15 8 3B W 0.05 0 1019 1939 Cloudy 60% cloud 12:00 8.8 46 23 12 4B W 0.04 0 1020 2006 Partly cloudy 50% cloud 15:00 7.5 47 22 12 4B W 0 0 1021 1833 Partly cloudy 48% cloud 18:00 4.1 58 16 9 3B W 0 0 1024 1587 Partly cloudy 26% cloud 21:00 2.5 66 11 6 2B W 0 0 1027 1568 Partly cloudy 28% cloud Sunday, 08/11 00:00 1.5 69 11 6 2B W 0 0 1028 1538 Partly cloudy 34% cloud 03:00 0.7 75 9 5 2B W 0 0 1029 1304 Partly cloudy 34% cloud 06:00 0.7 76 10 5 2B W 0 0 1031 1383 Cloudy 64% cloud 09:00 4.9 60 11 6 2B W 0 0 1032 2113 Cloudy 77% cloud 12:00 8.9 46 8 4 2B NW 0 0 1029 2557 Cloudy 66% cloud 15:00 8.2 51 5 3 1B NW 0 0 1028 2515 Partly cloudy 35% cloud 18:00 4.2 72 3 2 1B W 0.02 0 1030 2201 Cloudy 65% cloud 21:00 2.7 79 2 1 1B W 0 0 1031 2174 Cloudy 71% cloud Monday, 09/11 00:00 3.1 76 1 0 0B SW 0 0 1029 2165 Overcast 82% cloud 03:00 2.8 76 1 1 0B W 0 0 1028 2053 Overcast 95% cloud 06:00 3.3 76 2 1 1B SW 0 0 1027 2203 Overcast 96% cloud 09:00 6.1 68 1 1 0B S 0.16 0 1026 2442 Overcast 90% cloud 12:00 8.8 61 2 1 1B SE 0 0 1021 2577 Clear 17% cloud 15:00 9.1 66 3 2 1B E 0 0 1019 2426 Cloudy 80% cloud 18:00 5.8 87 2 1 1B NW 0.32 0 1021 2289 Cloudy 74% cloud 21:00 4.6 92 9 5 2B W 0.80 0 1022 1949 Cloudy 75% cloud Tuesday, 10/11 00:00 3.1 86 14 7 3B W 0 0 1022 1588 Cloudy 58% cloud 03:00 1.9 80 12 6 2B W 0 0 1023 1550 Partly cloudy 34% cloud 06:00 0.8 79 12 6 2B W 0 0 1024 1272 Partly cloudy 29% cloud 09:00 3.8 62 15 8 3B W 0 0 1025 1325 Partly cloudy 36% cloud 12:00 5.7 52 12 7 2B NW 0 0 1024 1424 Partly cloudy 27% cloud 15:00 5 48 10 6 2B NW 0 0 1025 1431 Clear 12% cloud 18:00 0.2 72 5 3 1B W 0 0 1028 1035 Clear 11% cloud 21:00 -1.5 77 5 3 1B W 0 0 1029 < 824 Clear 2% cloud Wednesday, 11/11 03:00 -2 76 2 1 1B W 0 0 1030 < 824 Clear 1% cloud 09:00 4.2 56 2 1 1B E 0 0 1030 2126 Clear 0% cloud 15:00 8.2 54 4 2 1B E 0 0 1026 2670 Clear 0% cloud 21:00 2.1 79 2 1 1B SE 0 0 1029 2608 Clear 0% cloud Thursday, 12/11 03:00 1.1 75 2 1 1B SW 0 0 1027 2701 Clear 0% cloud 09:00 8.8 51 1 0 0B E 0 0 1027 2751 Clear 0% cloud 15:00 11.3 49 4 2 1B E 0 0 1023 2774 Clear 0% cloud 21:00 4.3 74 2 1 1B W 0 0 1024 2853 Clear 0% cloud Friday, 13/11 03:00 2.8 68 4 2 1B W 0 0 1022 2861 Clear 0% cloud 09:00 10.3 43 2 1 1B W 0 0 1021 3013 Clear 0% cloud 15:00 13.3 39 2 1 1B NE 0 0 1017 2871 Clear 0% cloud 21:00 4.1 76 5 3 1B W 0 0 1018 2360 Clear 0% cloud Saturday, 14/11 03:00 2.3 68 10 5 2B W 0 0 1017 1832 Clear 15% cloud 09:00 8.4 64 12 7 3B W 0 0 1021 3023 Clear 16% cloud 15:00 11.2 45 7 4 2B W 0 0 1020 3087 Clear 3% cloud 21:00 3.1 80 4 2 1B W 0 0 1023 3103 Cloudy 58% cloud |
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Forecast table times: Asia/Tokyo.
Coordinates: 36.3368991°N, 138.6378567°E · Requested elevation: 941 m. Model terrain: 822 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
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) uses additional 600/500 hPa temperatures when available and 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.
Source: ECMWF · CC BY 4.0 · Processed by Snow Report.

Prince Hotels and Resorts Karuizawa is a downhill ski area in Gunma Prefecture, Japan. Mapped terrain includes easy, intermediate, advanced routes. Its mapped lift network extends from approximately 941 to 1156 metres above sea level.
Data: OpenSkiData / OpenSkiMap, OpenStreetMap contributors (ODbL), Skimap.org, Who's On First, Mapterhorn.
ECMWF · Model run: Next update expected:
Day Local time Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Thursday, 05/11 00:00 7.3 98 7 4 2B E 5.3 0 1027 3138 Overcast 100% cloud 03:00 7.5 97 5 3 1B E 4.5 0 1024 3131 Overcast 100% cloud 06:00 7.9 98 4 2 1B E 2.1 0 1022 3117 Overcast 100% cloud 09:00 10.3 94 7 4 2B SE 0.05 0 1019 3104 Overcast 100% cloud 12:00 13.1 79 3 2 1B S 0.09 0 1014 3075 Overcast 97% cloud 15:00 14.2 74 3 1 1B SE 0.04 0 1011 3055 Partly cloudy 41% cloud 18:00 9.9 92 3 2 1B W 0 0 1010 3047 Cloudy 53% cloud 21:00 8.5 95 4 2 1B W 0 0 1008 3033 Cloudy 51% cloud Friday, 06/11 00:00 7.6 95 6 3 1B W 0 0 1005 3016 Cloudy 66% cloud 03:00 7.5 92 9 5 2B W 0.14 0 1003 2999 Cloudy 55% cloud 06:00 7.5 93 11 6 2B W 0.52 0 1004 2999 Partly cloudy 42% cloud 09:00 14 76 12 6 2B W 0.06 0 1007 3014 Partly cloudy 36% cloud 12:00 16.9 43 22 12 4B W 0.03 0 1006 3014 Clear 13% cloud 15:00 16.3 40 20 11 3B W 0 0 1007 3020 Partly cloudy 22% cloud 18:00 10.9 59 13 7 3B W 0 0 1010 3002 Partly cloudy 22% cloud 21:00 8.2 68 13 7 3B W 0 0 1012 2689 Partly cloudy 20% cloud Saturday, 07/11 00:00 6.2 76 11 6 2B W 0.02 0 1014 2206 Partly cloudy 34% cloud 03:00 5.2 79 12 7 3B W 0.04 0 1015 1929 Partly cloudy 49% cloud 06:00 4.7 75 12 7 3B W 0 0 1017 1766 Cloudy 62% cloud 09:00 7.7 57 15 8 3B W 0.05 0 1019 1940 Cloudy 59% cloud 12:00 8.8 46 23 12 4B W 0.04 0 1020 2008 Partly cloudy 49% cloud 15:00 7.4 47 22 12 4B W 0 0 1021 1833 Partly cloudy 48% cloud 18:00 4 58 16 9 3B W 0 0 1024 1588 Partly cloudy 26% cloud 21:00 2.4 66 12 6 2B W 0 0 1027 1569 Partly cloudy 28% cloud Sunday, 08/11 00:00 1.5 69 11 6 2B W 0 0 1028 1538 Partly cloudy 34% cloud 03:00 0.7 74 9 5 2B W 0 0 1029 1308 Partly cloudy 34% cloud 06:00 0.7 75 10 5 2B W 0 0 1031 1385 Cloudy 64% cloud 09:00 4.9 60 11 6 2B W 0 0 1032 2109 Cloudy 76% cloud 12:00 8.8 46 8 4 2B NW 0 0 1029 2554 Cloudy 65% cloud 15:00 8.1 51 5 3 1B NW 0 0 1028 2513 Partly cloudy 35% cloud 18:00 4.1 72 3 2 1B W 0.02 0 1030 2199 Cloudy 65% cloud 21:00 2.7 79 2 1 1B W 0 0 1031 2172 Cloudy 71% cloud Monday, 09/11 00:00 3 76 1 0 0B SW 0 0 1029 2163 Overcast 82% cloud 03:00 2.8 76 1 1 1B W 0 0 1028 2051 Overcast 95% cloud 06:00 3.3 76 2 1 1B SW 0 0 1027 2203 Overcast 96% cloud 09:00 6.1 68 1 1 1B SW 0.16 0 1026 2442 Overcast 90% cloud 12:00 8.7 61 2 1 1B SE 0 0 1021 2576 Clear 18% cloud 15:00 9 66 3 1 1B E 0 0 1019 2425 Cloudy 80% cloud 18:00 5.8 87 3 1 1B NW 0.33 0 1021 2288 Cloudy 74% cloud 21:00 4.6 92 9 5 2B W 0.82 0 1022 1948 Cloudy 75% cloud Tuesday, 10/11 00:00 3 86 14 7 3B NW 0 0 1022 1589 Cloudy 57% cloud 03:00 1.9 80 12 6 2B W 0 0 1023 1551 Partly cloudy 35% cloud 06:00 0.8 79 12 7 2B W 0 0 1024 1274 Partly cloudy 29% cloud 09:00 3.8 63 15 8 3B W 0 0 1025 1325 Partly cloudy 36% cloud 12:00 5.6 52 12 7 2B NW 0 0 1024 1423 Partly cloudy 27% cloud 15:00 4.9 49 10 6 2B NW 0 0 1025 1430 Clear 12% cloud 18:00 0.2 72 5 3 1B W 0 0 1028 1037 Clear 11% cloud 21:00 -1.4 77 5 3 1B W 0 0 1029 < 823 Clear 2% cloud Wednesday, 11/11 03:00 -2 76 2 1 1B W 0 0 1030 < 823 Clear 1% cloud 09:00 4.2 56 2 1 1B E 0 0 1030 2124 Clear 0% cloud 15:00 8.2 54 4 2 1B E 0 0 1026 2670 Clear 0% cloud 21:00 2.2 79 2 1 1B SE 0 0 1029 2607 Clear 0% cloud Thursday, 12/11 03:00 1.2 75 2 1 1B SW 0 0 1027 2701 Clear 0% cloud 09:00 8.8 50 1 0 0B SE 0 0 1027 2750 Clear 0% cloud 15:00 11.3 49 4 2 1B E 0 0 1023 2774 Clear 0% cloud 21:00 4.3 74 2 1 1B W 0 0 1024 2853 Clear 0% cloud Friday, 13/11 03:00 2.8 68 4 2 1B W 0 0 1022 2861 Clear 0% cloud 09:00 10.3 43 2 1 1B W 0 0 1021 3013 Clear 0% cloud 15:00 13.2 39 2 1 1B NE 0 0 1017 2871 Clear 0% cloud 21:00 4 75 6 3 1B W 0 0 1018 2359 Clear 0% cloud Saturday, 14/11 03:00 2.3 68 10 6 2B W 0 0 1017 1829 Clear 15% cloud 09:00 8.4 64 13 7 3B W 0 0 1021 3022 Clear 16% cloud 15:00 11.2 45 7 4 2B W 0 0 1020 3087 Clear 3% cloud 21:00 3.1 80 4 2 1B W 0 0 1023 3103 Cloudy 58% cloud |
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Forecast table times: Asia/Tokyo.
Coordinates: 36.3389802°N, 138.640202°E · Requested elevation: 950 m. Model terrain: 821 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
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) uses additional 600/500 hPa temperatures when available and 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.
Source: ECMWF · CC BY 4.0 · Processed by Snow Report.
ECMWF · Model run: Next update expected:
Day Local time Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Thursday, 05/11 00:00 6.6 98 13 7 3B SE 5.3 0 1027 3138 Overcast 100% cloud 03:00 7.1 95 11 6 2B SE 4.6 0 1024 3131 Overcast 100% cloud 06:00 7.5 98 11 6 2B E 2.2 0 1022 3117 Overcast 100% cloud 09:00 9.2 96 13 7 3B SE 0.05 0 1019 3104 Overcast 100% cloud 12:00 12.1 78 9 5 2B SW 0.08 0 1014 3075 Overcast 96% cloud 15:00 13.2 74 7 4 2B SW 0.05 0 1011 3055 Partly cloudy 41% cloud 18:00 9.4 89 10 5 2B W 0 0 1010 3047 Cloudy 52% cloud 21:00 8.1 93 10 5 2B W 0 0 1008 3033 Partly cloudy 50% cloud Friday, 06/11 00:00 7.2 93 12 7 3B W 0 0 1005 3016 Cloudy 67% cloud 03:00 6.9 91 17 9 3B W 0.14 0 1003 2999 Cloudy 56% cloud 06:00 6.9 90 18 10 3B W 0.50 0 1004 2999 Partly cloudy 42% cloud 09:00 12.8 73 18 10 3B W 0.06 0 1007 3014 Partly cloudy 36% cloud 12:00 15.4 42 27 15 4B W 0.03 0 1006 3014 Clear 12% cloud 15:00 14.8 39 26 14 4B W 0 0 1007 3020 Partly cloudy 21% cloud 18:00 9.9 56 18 10 3B W 0 0 1010 3014 Partly cloudy 21% cloud 21:00 7.3 64 19 10 3B W 0 0 1012 2706 Clear 20% cloud Saturday, 07/11 00:00 5.2 74 16 9 3B W 0.02 0 1014 2217 Partly cloudy 33% cloud 03:00 4.1 76 19 10 3B W 0.03 0 1015 1941 Partly cloudy 48% cloud 06:00 3.5 73 20 11 4B W 0 0 1017 1776 Cloudy 62% cloud 09:00 6.1 58 23 12 4B W 0.05 0 1019 1946 Cloudy 59% cloud 12:00 7.1 47 30 16 5B W 0.04 0 1019 2013 Partly cloudy 49% cloud 15:00 5.4 51 29 16 5B W 0 0 1021 1847 Partly cloudy 47% cloud 18:00 2.7 58 24 13 4B W 0 0 1024 1615 Partly cloudy 25% cloud 21:00 1.7 64 17 9 3B W 0 0 1027 1603 Partly cloudy 26% cloud Sunday, 08/11 00:00 1.1 64 17 9 3B W 0 0 1028 1585 Partly cloudy 32% cloud 03:00 0.4 66 15 8 3B W 0 0 1029 1354 Partly cloudy 32% cloud 06:00 0.5 66 16 9 3B W 0 0 1031 1441 Cloudy 65% cloud 09:00 3.5 57 15 8 3B W 0 0 1032 2154 Cloudy 76% cloud 12:00 6.5 49 10 6 2B NW 0 0 1029 2562 Cloudy 66% cloud 15:00 6.3 54 7 4 2B NW 0 0 1028 2522 Partly cloudy 33% cloud 18:00 3.3 69 5 3 1B W 0.02 0 1030 2205 Cloudy 64% cloud 21:00 2.5 75 4 2 1B SW 0 0 1031 2177 Cloudy 71% cloud Monday, 09/11 00:00 2.8 74 4 2 1B SW 0 0 1029 2166 Overcast 82% cloud 03:00 2.6 74 3 2 1B W 0 0 1028 2053 Overcast 95% cloud 06:00 3.4 73 6 3 2B SW 0 0 1027 2206 Overcast 96% cloud 09:00 5.4 68 6 3 2B SW 0.16 0 1026 2447 Overcast 90% cloud 12:00 7.5 63 5 3 1B SW 0 0 1022 2580 Clear 18% cloud 15:00 8.1 65 2 1 1B NW 0 0 1019 2426 Cloudy 78% cloud 18:00 5.5 82 6 3 2B NW 0.33 0 1021 2292 Cloudy 73% cloud 21:00 3.8 89 14 8 3B NW 0.79 0 1022 1956 Cloudy 74% cloud Tuesday, 10/11 00:00 2.1 81 21 11 4B NW 0 0 1022 1607 Cloudy 55% cloud 03:00 1.3 73 18 10 3B W 0 0 1022 1565 Partly cloudy 33% cloud 06:00 0.4 71 18 10 3B W 0 0 1023 1299 Partly cloudy 27% cloud 09:00 1.7 65 21 11 4B NW 0 0 1025 1327 Partly cloudy 34% cloud 12:00 3.2 58 15 8 3B NW 0 0 1024 1426 Partly cloudy 25% cloud 15:00 2.8 51 13 7 3B NW 0 0 1025 1435 Clear 11% cloud 18:00 -0.2 64 8 4 2B NW 0 0 1028 1071 Clear 10% cloud 21:00 -1.1 67 8 4 2B W 0 0 1029 < 802 Clear 2% cloud Wednesday, 11/11 03:00 -1.4 71 6 3 2B W 0 0 1030 < 802 Clear 1% cloud 09:00 3.2 56 2 1 1B SW 0 0 1030 2120 Clear 0% cloud 15:00 7 54 1 1 0B NE 0 0 1026 2668 Clear 0% cloud 21:00 2.8 71 4 2 1B SE 0 0 1029 2605 Clear 0% cloud Thursday, 12/11 03:00 2.6 65 3 1 1B SW 0 0 1027 2702 Clear 0% cloud 09:00 7.8 46 2 1 1B S 0 0 1027 2749 Clear 0% cloud 15:00 10 49 2 1 1B E 0 0 1023 2773 Clear 0% cloud 21:00 5.3 65 4 2 1B W 0 0 1024 2852 Clear 0% cloud Friday, 13/11 03:00 4.4 54 7 4 2B W 0 0 1022 2861 Clear 0% cloud 09:00 9.3 37 5 2 1B W 0 0 1021 3015 Clear 0% cloud 15:00 11.7 38 2 1 1B NW 0 0 1017 2873 Clear 0% cloud 21:00 3.5 71 11 6 2B W 0 0 1018 2368 Clear 0% cloud Saturday, 14/11 03:00 1.7 66 17 9 3B W 0 0 1017 1824 Clear 14% cloud 09:00 6.5 68 18 10 3B W 0 0 1021 3037 Clear 15% cloud 15:00 9.3 47 10 5 2B NW 0 0 1019 3087 Clear 3% cloud 21:00 3.8 72 6 3 2B W 0 0 1023 3103 Cloudy 57% cloud |
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Forecast table times: Asia/Tokyo.
Coordinates: 36.3339879°N, 138.6487035°E · Requested elevation: 1156 m. Model terrain: 799 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
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) uses additional 600/500 hPa temperatures when available and 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.