July
July · August · June
Germany · 1991–2020
July leads for comfortable weather in Heiden: typically 24.5°C by day, 12.9°C at night, with 81 mm of rain. Based on measured 1991–2020 NOAA station history.
July · August · June
July · August · June
May · September · June
The weakest month is January, scoring 5 against July’s 81 — days reach only 5.5°C, 18° 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 | 5.5°C | 0.5°C | 74 mm | 13.3 | 8 h 15 | 5 | Good coverage |
| February | 6.5°C | 0.4°C | 62 mm | 11.5 | 9 h 51 | 5 | Good coverage |
| March | 10.3°C | 1.9°C | 63 mm | 11.1 | 11 h 41 | 20 | Good coverage |
| April | 16°C | 4.6°C | 44 mm | 8.7 | 13 h 48 | 48 | Good coverage |
| May | 19.4°C | 8.1°C | 55 mm | 9.7 | 15 h 37 | 64 | Good coverage |
| June | 22.5°C | 11.2°C | 71 mm | 10.5 | 16 h 40 | 76 | Good coverage |
| July | 24.5°C | 12.9°C | 81 mm | 10.8 | 16 h 15 | 81 | Good coverage |
| August | 23.7°C | 12.3°C | 79 mm | 10.7 | 14 h 38 | 81 | Good coverage |
| September | 20.3°C | 9.5°C | 74 mm | 10.3 | 12 h 34 | 66 | Good coverage |
| October | 15.3°C | 7.2°C | 73 mm | 11.5 | 10 h 33 | 44 | Good coverage |
| November | 9.8°C | 3.8°C | 72 mm | 12.2 | 8 h 44 | 19 | Good coverage |
| December | 6.4°C | 1.7°C | 85 mm | 14 | 7 h 48 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 16.3°C1 Jan 2023 | -18.4°C6 Jan 2009 | 31 mm5 Jan 2025 | 115 mm2012 · driest 26 mm in 2006 | 22 |
| February | 19.6°C27 Feb 2019 | -16.1°C12 Feb 2021 | 29 mm22 Feb 2017 | 135 mm2020 · driest 17 mm in 2012 | 22 |
| March | 24.7°C31 Mar 2021 | -16.2°C4 Mar 2005 | 27 mm9 Mar 2013 | 116 mm2023 · driest 7 mm in 2025 | 22 |
| April | 29.5°C19 Apr 2018 | -5.4°C1 Apr 2013 | 27 mm19 Apr 2005 | 90 mm2024 · driest 1 mm in 2007 | 22 |
| May | 33.7°C29 May 2017 | -0.6°C5 May 2010 | 30 mm7 May 2007 | 135 mm2021 · driest 16 mm in 2020 | 22 |
| June | 38.8°C26 Jun 2026 | 3.1°C1 Jun 2005 | 77 mm1 Jun 2016 | 185 mm2016 · driest 14 mm in 2010 | 23 |
| July | 39.4°C25 Jul 2019 | 5.3°C10 Jul 2015 | 67 mm29 Jul 2005 | 156 mm2023 · driest 23 mm in 2022 | 22 |
| August | 37.2°C7 Aug 2018 | 3.8°C25 Aug 2025 | 45 mm26 Aug 2010 | 204 mm2010 · driest 8 mm in 2022 | 22 |
| September | 33.2°C15 Sep 2020 | 0.6°C30 Sep 2018 | 43 mm10 Sep 2013 | 147 mm2013 · driest 6 mm in 2016 | 22 |
| October | 27.7°C13 Oct 2018 | -4.0°C28 Oct 2012 | 44 mm7 Oct 2009 | 148 mm2023 · driest 20 mm in 2022 | 22 |
| November | 20.1°C1 Nov 2014 | -7.2°C20 Nov 2022 | 25 mm18 Nov 2004 | 150 mm2023 · driest 6 mm in 2011 | 22 |
| December | 16.9°C31 Dec 2022 | -14.2°C19 Dec 2009 | 30 mm24 Dec 2013 | 163 mm2023 · driest 24 mm in 2016 | 22 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 13 | 2 |
| February | 0 | 0 | 12 | 1 |
| March | 0 | 0 | 10 | 1 |
| April | 1 | 0 | 4 | <1 |
| May | 4 | <1 | <1 | 1 |
| June | 9 | 1 | 0 | 2 |
| July | 13 | 4 | 0 | 3 |
| August | 10 | 3 | 0 | 3 |
| September | 4 | <1 | 0 | 2 |
| October | <1 | 0 | 1 | 2 |
| November | 0 | 0 | 5 | 2 |
| December | 0 | 0 | 11 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 43% | 6% | 57% | 3.2–7.8°C |
| February | 0% | 39% | 5% | 51% | 3.7–9.6°C |
| March | 2% | 37% | 5% | 48% | 8.8–13.8°C |
| April | 15% | 33% | 3% | 41% | 13.2–19.0°C |
| May | 36% | 34% | 5% | 44% | 16.7–21.4°C |
| June | 52% | 35% | 7% | 46% | 21.2–25.4°C |
| July | 58% | 37% | 8% | 50% | 22.0–27.3°C |
| August | 58% | 36% | 7% | 46% | 21.8–25.9°C |
| September | 40% | 35% | 8% | 47% | 18.2–23.4°C |
| October | 9% | 35% | 6% | 46% | 13.9–17.5°C |
| November | <1% | 42% | 7% | 58% | 8.4–11.7°C |
| December | 0% | 44% | 7% | 62% | 4.4–8.1°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