June
June · July · September
Japan · 1991–2020
June leads for comfortable weather in Ebetsu: typically 21.7°C by day, 13.1°C at night, with 74 mm of rain. Based on measured 1991–2020 NOAA station history.
June · July · September
July · August · June
May · June · October
The weakest month is January, scoring 5 against June’s 79 — days reach only -0.3°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 | -0.3°C | -7.1°C | 123 mm | 20.5 | 6.7°C | 9 h 19 | 5 | Strong coverage |
| February | 0.5°C | -6.8°C | 109 mm | 18 | 5.4°C | 10 h 27 | 5 | Good coverage |
| March | 4.7°C | -2.9°C | 94 mm | 17.2 | 5.4°C | 11 h 47 | 5 | Strong coverage |
| April | 11.9°C | 2.9°C | 60 mm | 9.8 | 7.1°C | 13 h 20 | 29 | Good coverage |
| May | 18.2°C | 8.7°C | 58 mm | 8.9 | 10.2°C | 14 h 38 | 61 | Good coverage |
| June | 21.7°C | 13.1°C | 74 mm | 8 | 14.4°C | 15 h 21 | 79 | Good coverage |
| July | 25.4°C | 17.6°C | 97 mm | 8.3 | 18.7°C | 15 h 04 | 77 | Good coverage |
| August | 26.4°C | 18.7°C | 136 mm | 9.3 | 21.5°C | 13 h 57 | 66 | Good coverage |
| September | 22.9°C | 14.5°C | 143 mm | 11 | 20.8°C | 12 h 27 | 73 | Good coverage |
| October | 16.4°C | 7.4°C | 125 mm | 12.9 | 17.0°C | 10 h 57 | 40 | Good coverage |
| November | 8.6°C | 1.2°C | 134 mm | 17.4 | 12.5°C | 9 h 39 | 5 | Good coverage |
| December | 2°C | -4.4°C | 136 mm | 19.1 | 9.0°C | 9 h 00 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 8.4°C8 Jan 1983 | -20.9°C24 Jan 1954 | 60 mm31 Jan 1970 | 219 mm1991 · driest 52 mm in 2020 | 75 |
| February | 10.8°C28 Feb 1953 | -19.6°C21 Feb 1953 | 98 mm14 Feb 1972 | 268 mm1972 · driest 28 mm in 1989 | 75 |
| March | 16.4°C28 Mar 2018 | -17.1°C5 Mar 1965 | 82 mm21 Mar 1975 | 162 mm1994 · driest 26 mm in 1954 | 75 |
| April | 28.0°C21 Apr 1998 | -8.0°C3 Apr 1960 | 59 mm23 Apr 1990 | 141 mm1959 · driest 0 mm in 2025 | 75 |
| May | 34.2°C27 May 2019 | -2.2°C4 May 1957 | 48 mm13 May 1968 | 116 mm1972 · driest 0 mm in 2025 | 75 |
| June | 32.9°C25 Jun 2025 | 2.5°C9 Jun 1954 | 70 mm6 Jun 1967 | 169 mm2017 · driest 0 mm in 2025 | 75 |
| July | 36.0°C31 Jul 2000 | 7.0°C4 Jul 1968 | 93 mm14 Jul 1999 | 194 mm2000 · driest 0 mm in 2025 | 75 |
| August | 36.2°C7 Aug 1994 | 8.8°C19 Aug 1971 | 207 mm23 Aug 1981 | 644 mm1981 · driest 0 mm in 2025 | 74 |
| September | 32.7°C2 Sep 1990 | 0.8°C28 Sep 1964 | 131 mm10 Sep 1965 | 481 mm1965 · driest 0 mm in 2025 | 74 |
| October | 27.6°C3 Oct 2025 | -3.0°C26 Oct 1961 | 103 mm19 Oct 1979 | 245 mm1979 · driest 0 mm in 2025 | 74 |
| November | 22.4°C3 Nov 2003 | -12.0°C27 Nov 1955 | 83 mm24 Nov 1988 | 266 mm1972 · driest 0 mm in 2025 | 74 |
| December | 14.8°C4 Dec 1989 | -20.2°C7 Dec 1953 | 56 mm23 Dec 2016 | 207 mm2012 · driest 25 mm in 2020 | 74 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 16 | 3 |
| February | 0 | 0 | 16 | 3 |
| March | 0 | 0 | 14 | 2 |
| April | <1 | 0 | 3 | 1 |
| May | 2 | <1 | 0 | 2 |
| June | 7 | <1 | 0 | 2 |
| July | 16 | 3 | 0 | 3 |
| August | 19 | 4 | 0 | 4 |
| September | 7 | <1 | 0 | 4 |
| October | <1 | 0 | 0 | 3 |
| November | 0 | 0 | 6 | 4 |
| December | 0 | 0 | 15 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 58% | 11% | 82% | -2.3–0.9°C |
| February | 0% | 56% | 10% | 79% | -1.8–1.9°C |
| March | 0% | 47% | 7% | 61% | 2.7–5.8°C |
| April | 4% | 33% | 6% | 33% | 9.5–14.0°C |
| May | 28% | 30% | 6% | 30% | 16.0–19.6°C |
| June | 49% | 28% | 8% | 30% | 19.9–23.0°C |
| July | 67% | 28% | 9% | 27% | 23.0–27.2°C |
| August | 67% | 33% | 14% | 38% | 24.3–28.5°C |
| September | 54% | 37% | 14% | 46% | 21.1–24.2°C |
| October | 11% | 41% | 12% | 53% | 14.8–17.3°C |
| November | 0% | 48% | 12% | 68% | 6.5–9.8°C |
| December | 0% | 53% | 11% | 75% | 0.1–3.7°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