June
June · August · July
Switzerland · 1991–2020
June leads for comfortable weather in Wil: typically 23.9°C by day, 13.2°C at night, with 100 mm of rain. Based on measured 1991–2020 NOAA station history.
June · August · July
July · August · June
September · May · April
The weakest month is January, scoring 5 against June’s 80 — days reach only 3.9°C, 20° 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 | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 3.9°C | -1°C | 46 mm | 9.1 | 8 h 50 | 5 | Strong coverage |
| February | 5.8°C | -0.9°C | 45 mm | 8.6 | 10 h 10 | 5 | Strong coverage |
| March | 11.1°C | 2°C | 51 mm | 9.4 | 11 h 44 | 26 | Strong coverage |
| April | 16°C | 5.2°C | 57 mm | 9 | 13 h 33 | 47 | Strong coverage |
| May | 20.3°C | 9.5°C | 89 mm | 10.5 | 15 h 05 | 63 | Strong coverage |
| June | 23.9°C | 13.2°C | 100 mm | 11.5 | 15 h 56 | 80 | Strong coverage |
| July | 25.7°C | 15°C | 96 mm | 11.7 | 15 h 36 | 78 | Strong coverage |
| August | 25.3°C | 14.8°C | 98 mm | 11 | 14 h 15 | 79 | Strong coverage |
| September | 20.3°C | 11.1°C | 69 mm | 9.2 | 12 h 30 | 70 | Strong coverage |
| October | 14.6°C | 7.3°C | 63 mm | 9.2 | 10 h 46 | 46 | Strong coverage |
| November | 8.2°C | 2.9°C | 57 mm | 9.1 | 9 h 14 | 17 | Strong coverage |
| December | 4.5°C | -0.1°C | 63 mm | 10.6 | 8 h 28 | 5 | Strong coverage |
What has changed
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 17.1°C1 Jan 2023 | -19.0°C12 Jan 1987 | 30 mm27 Jan 2025 | 134 mm2016 · driest 2 mm in 1997 | 54 |
| February | 19.4°C23 Feb 2017 | -13.7°C10 Feb 1986 | 30 mm3 Feb 2020 | 113 mm1990 · driest 13 mm in 2023 | 54 |
| March | 24.4°C22 Mar 1974 | -12.5°C1 Mar 2005 | 39 mm4 Mar 2006 | 146 mm2001 · driest 15 mm in 1984 | 54 |
| April | 30.7°C28 Apr 2012 | -3.5°C12 Apr 1986 | 49 mm9 Apr 1986 | 138 mm1989 · driest 7 mm in 2018 | 54 |
| May | 32.2°C29 May 2017 | -0.6°C3 May 1979 | 77 mm31 May 2024 | 223 mm2024 · driest 15 mm in 1992 | 54 |
| June | 37.9°C27 Jun 2026 | 4.4°C7 Jun 1986 | 63 mm14 Jun 2015 | 230 mm1975 · driest 29 mm in 2023 | 54 |
| July | 36.9°C25 Jul 2019 | 7.6°C22 Jul 1980 | 77 mm8 Jul 2017 | 217 mm2021 · driest 18 mm in 1983 | 53 |
| August | 36.5°C1 Aug 2018 | 6.8°C25 Aug 1980 | 85 mm26 Aug 2022 | 211 mm2022 · driest 14 mm in 1991 | 53 |
| September | 30.9°C1 Sep 2009 | 2.4°C25 Sep 2002 | 68 mm20 Sep 2000 | 165 mm1984 · driest 23 mm in 2021 | 53 |
| October | 25.9°C13 Oct 2023 | -3.8°C25 Oct 2003 | 49 mm7 Oct 1973 | 143 mm1981 · driest 6 mm in 1985 | 53 |
| November | 22.0°C8 Nov 1982 | -9.0°C26 Nov 1989 | 50 mm22 Nov 1972 | 181 mm1972 · driest 1 mm in 2011 | 54 |
| December | 16.8°C16 Dec 1989 | -13.7°C3 Dec 1973 | 37 mm24 Dec 1995 | 159 mm2011 · driest 3 mm in 2016 | 54 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 19 | 1 |
| February | 0 | 0 | 17 | 1 |
| March | 0 | 0 | 8 | 1 |
| April | 1 | 0 | 2 | 1 |
| May | 6 | <1 | 0 | 3 |
| June | 13 | 4 | 0 | 3 |
| July | 18 | 6 | 0 | 3 |
| August | 17 | 5 | 0 | 3 |
| September | 5 | <1 | 0 | 2 |
| October | <1 | 0 | <1 | 2 |
| November | 0 | 0 | 5 | 1 |
| December | 0 | 0 | 16 | 2 |
The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 89); on 2011–2025 it is June (85). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 31% | 4% | 38% | 0.6–5.9°C |
| February | 0% | 31% | 5% | 40% | 2.4–9.5°C |
| March | 3% | 29% | 3% | 36% | 8.1–13.4°C |
| April | 18% | 32% | 5% | 44% | 12.2–18.0°C |
| May | 38% | 37% | 8% | 52% | 16.6–22.3°C |
| June | 51% | 40% | 11% | 56% | 20.5–26.7°C |
| July | 58% | 37% | 11% | 51% | 22.7–28.2°C |
| August | 61% | 36% | 10% | 48% | 22.3–26.9°C |
| September | 41% | 30% | 8% | 36% | 18.3–22.6°C |
| October | 8% | 27% | 5% | 35% | 11.8–17.1°C |
| November | <1% | 31% | 5% | 40% | 5.4–9.7°C |
| December | 0% | 33% | 5% | 43% | 2.1–6.5°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