July
July · June · August
Japan · 1991–2020
July leads for comfortable weather in Niseko: typically 23.2°C by day, 16.6°C at night, with 110 mm of rain. Based on measured 1991–2020 NOAA station history.
July · June · August
July · August · June
June · May · July
The weakest month is January, scoring 5 against July’s 77 — days reach only 0.1°C, 24° below the 24°C the score treats as ideal.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 0.1°C | -5.3°C | 130 mm | 23.8 | 7.6°C | 9 h 21 | 5 | Good coverage |
| February | 0.7°C | -4.8°C | 101 mm | 20.3 | 6.3°C | 10 h 28 | 5 | Good coverage |
| March | 4.1°C | -2.2°C | 85 mm | 16.7 | 6.3°C | 11 h 47 | 5 | Strong coverage |
| April | 10.5°C | 2.2°C | 67 mm | 9.6 | 7.8°C | 13 h 19 | 22 | Good coverage |
| May | 16.1°C | 7.5°C | 72 mm | 9.1 | 10.5°C | 14 h 37 | 50 | Good coverage |
| June | 19.4°C | 12°C | 78 mm | 9 | 14.7°C | 15 h 19 | 68 | Good coverage |
| July | 23.2°C | 16.6°C | 110 mm | 10.9 | 18.8°C | 15 h 02 | 77 | Good coverage |
| August | 24.7°C | 18.1°C | 161 mm | 11.9 | 21.7°C | 13 h 55 | 66 | Good coverage |
| September | 21.7°C | 14.3°C | 167 mm | 12.7 | 21.2°C | 12 h 26 | 64 | Good coverage |
| October | 15.7°C | 7.7°C | 163 mm | 16.2 | 17.3°C | 10 h 58 | 30 | Good coverage |
| November | 8.9°C | 1.6°C | 173 mm | 20 | 13.0°C | 9 h 41 | 5 | Good coverage |
| December | 2.4°C | -2.9°C | 150 mm | 23.8 | 9.6°C | 9 h 03 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 8.0°C20 Jan 2010 | -14.9°C14 Jan 1967 | 44 mm31 Jan 1970 | 210 mm2018 · driest 45 mm in 2020 | 75 |
| February | 11.2°C23 Feb 1967 | -14.1°C17 Feb 1978 | 46 mm23 Feb 2004 | 174 mm2004 · driest 22 mm in 1989 | 75 |
| March | 17.5°C28 Mar 2018 | -11.0°C4 Mar 1951 | 74 mm10 Mar 2015 | 215 mm2015 · driest 0 mm in 2026 | 75 |
| April | 27.7°C21 Apr 1998 | -4.9°C1 Apr 1976 | 49 mm13 Apr 1998 | 161 mm1964 · driest 0 mm in 2025 | 75 |
| May | 29.0°C27 May 2019 | -0.9°C3 May 1955 | 116 mm2 May 1998 | 188 mm1955 · driest 0 mm in 2025 | 75 |
| June | 29.2°C28 Jun 2010 | 3.9°C1 Jun 1981 | 101 mm6 Jun 1994 | 149 mm2016 · driest 0 mm in 2025 | 75 |
| July | 32.4°C31 Jul 2000 | 8.1°C6 Jul 1979 | 158 mm25 Jul 1961 | 406 mm1961 · driest 0 mm in 2025 | 75 |
| August | 33.5°C6 Aug 2010 | 10.8°C22 Aug 1956 | 206 mm3 Aug 1962 | 506 mm1962 · driest 0 mm in 2025 | 74 |
| September | 32.2°C5 Sep 1998 | 4.8°C28 Sep 1964 | 157 mm2 Sep 2011 | 376 mm1965 · driest 0 mm in 2025 | 74 |
| October | 25.6°C3 Oct 2025 | -0.5°C31 Oct 1955 | 88 mm15 Oct 1991 | 235 mm2021 · driest 0 mm in 2025 | 74 |
| November | 20.6°C3 Nov 2003 | -8.7°C29 Nov 1971 | 55 mm21 Nov 1972 | 264 mm2012 · driest 0 mm in 2025 | 74 |
| December | 15.1°C1 Dec 1953 | -13.0°C24 Dec 1984 | 33 mm6 Dec 2009 | 255 mm1956 · driest 0 mm in 2025 | 74 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 16 | 3 |
| February | 0 | 0 | 15 | 2 |
| March | 0 | 0 | 14 | 1 |
| April | 0 | 0 | 3 | 2 |
| May | <1 | 0 | 0 | 2 |
| June | 2 | 0 | 0 | 2 |
| July | 7 | <1 | 0 | 3 |
| August | 13 | 1 | 0 | 4 |
| September | 3 | <1 | 0 | 4 |
| October | 0 | 0 | 0 | 5 |
| November | 0 | 0 | 5 | 5 |
| December | 0 | 0 | 13 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 72% | 8% | 90% | -2.0–1.2°C |
| February | 0% | 64% | 6% | 83% | -1.9–1.9°C |
| March | 0% | 46% | 5% | 57% | 2.0–5.4°C |
| April | 1% | 33% | 8% | 37% | 8.2–11.9°C |
| May | 11% | 32% | 8% | 32% | 13.3–17.4°C |
| June | 26% | 30% | 7% | 30% | 16.7–20.2°C |
| July | 55% | 29% | 10% | 31% | 20.0–24.4°C |
| August | 64% | 35% | 14% | 43% | 22.7–26.5°C |
| September | 45% | 41% | 16% | 54% | 20.0–22.8°C |
| October | 4% | 47% | 18% | 64% | 14.0–16.6°C |
| November | 0% | 61% | 17% | 86% | 6.6–9.9°C |
| December | 0% | 72% | 12% | 93% | 0.6–4.3°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page