June
June · August · September
Slovakia · 1991–2020
June leads for comfortable weather in Stupava: typically 25°C by day, 14.7°C at night, with 70 mm of rain. Based on measured 1991–2020 NOAA station history.
June · August · September
August · July · June
September · April · May
The weakest month is January, scoring 5 against June’s 86 — days reach only 3.6°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 | 3.6°C | -1.3°C | 42 mm | 8.7 | 8 h 44 | 5 | Strong coverage |
| February | 6°C | -0.4°C | 38 mm | 7.1 | 10 h 07 | 9 | Strong coverage |
| March | 11°C | 2.7°C | 52 mm | 8.7 | 11 h 44 | 27 | Strong coverage |
| April | 17°C | 6.7°C | 42 mm | 6.5 | 13 h 35 | 58 | Strong coverage |
| May | 21.2°C | 11.1°C | 79 mm | 9.4 | 15 h 10 | 72 | Strong coverage |
| June | 25°C | 14.7°C | 70 mm | 8.4 | 16 h 03 | 86 | Strong coverage |
| July | 27.1°C | 16.4°C | 78 mm | 8.9 | 15 h 42 | 76 | Strong coverage |
| August | 26.8°C | 16.2°C | 69 mm | 7.9 | 14 h 19 | 79 | Strong coverage |
| September | 21°C | 12.1°C | 64 mm | 7.4 | 12 h 31 | 77 | Strong coverage |
| October | 14.7°C | 7.6°C | 47 mm | 7.2 | 10 h 44 | 51 | Strong coverage |
| November | 8.7°C | 3.7°C | 46 mm | 7.6 | 9 h 09 | 24 | Strong coverage |
| December | 4.1°C | -0.4°C | 47 mm | 8.6 | 8 h 21 | 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 | 18.7°C29 Jan 2002 | -22.2°C16 Jan 1893 | 27 mm15 Jan 1974 | 103 mm2013 · driest 3 mm in 1990 | 171 |
| February | 20.6°C23 Feb 1903 | -26.0°C11 Feb 1929 | 62 mm4 Feb 1921 | 112 mm1999 · driest 1 mm in 2003 | 172 |
| March | 25.5°C31 Mar 1989 | -16.3°C2 Mar 1886 | 43 mm22 Mar 1971 | 142 mm2009 · driest 2 mm in 1921 | 172 |
| April | 30.0°C30 Apr 2012 | -8.1°C4 Apr 1900 | 48 mm14 Apr 1915 | 148 mm1921 · driest 2 mm in 1946 | 172 |
| May | 34.0°C30 May 1856 | -1.6°C4 May 1864 | 93 mm10 May 1951 | 189 mm2014 · driest 10 mm in 1979 | 172 |
| June | 39.7°C28 Jun 2026 | 3.2°C3 Jun 1928 | 78 mm25 Jun 1979 | 193 mm1965 · driest 8 mm in 1917 | 172 |
| July | 38.3°C8 Jul 1957 | 6.9°C8 Jul 1939 | 81 mm17 Jul 2021 | 244 mm1997 · driest 6 mm in 1983 | 172 |
| August | 38.5°C8 Aug 2013 | 6.5°C29 Aug 1864 | 114 mm17 Aug 2024 | 242 mm1938 · driest 14 mm in 1990 | 171 |
| September | 33.5°C17 Sep 2015 | -0.6°C26 Sep 1875 | 102 mm14 Sep 2024 | 242 mm2024 · driest 5 mm in 1956 | 171 |
| October | 27.8°C2 Oct 1956 | -9.1°C31 Oct 1920 | 70 mm26 Oct 1930 | 212 mm1930 · driest 0 mm in 1965 | 171 |
| November | 21.7°C3 Nov 1970 | -14.3°C27 Nov 1892 | 49 mm14 Nov 1905 | 136 mm1905 · driest 0 mm in 2011 | 170 |
| December | 19.1°C7 Dec 1868 | -20.7°C21 Dec 1927 | 50 mm23 Dec 1947 | 120 mm1947 · driest 3 mm in 1972 | 169 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 19 | <1 |
| February | 0 | 0 | 15 | <1 |
| March | 0 | 0 | 7 | 1 |
| April | 1 | 0 | <1 | 1 |
| May | 7 | <1 | 0 | 2 |
| June | 16 | 4 | 0 | 2 |
| July | 22 | 8 | 0 | 3 |
| August | 20 | 8 | 0 | 2 |
| September | 5 | <1 | 0 | 2 |
| October | <1 | 0 | 1 | 1 |
| November | 0 | 0 | 6 | 1 |
| December | 0 | 0 | 15 | 1 |
The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 94); on 2011–2025 it is June (87). 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% | 26% | 3% | 29% | -1.4–5.8°C |
| February | 0% | 26% | 3% | 28% | 0.0–8.2°C |
| March | 2% | 25% | 4% | 28% | 5.8–12.9°C |
| April | 16% | 26% | 4% | 31% | 11.9–17.8°C |
| May | 41% | 29% | 7% | 33% | 17.2–22.6°C |
| June | 59% | 30% | 7% | 36% | 20.9–25.9°C |
| July | 66% | 30% | 8% | 36% | 22.7–28.3°C |
| August | 66% | 28% | 6% | 31% | 22.2–27.5°C |
| September | 44% | 24% | 5% | 26% | 17.8–22.8°C |
| October | 8% | 23% | 5% | 25% | 11.9–16.4°C |
| November | <1% | 26% | 5% | 31% | 4.7–10.1°C |
| December | 0% | 27% | 4% | 35% | 0.1–6.3°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