July
July · August · June
Germany · 1991–2020
July leads for comfortable weather in Merzen: typically 23.6°C by day, 12.7°C at night, with 80 mm of rain. Based on measured 1991–2020 NOAA station history.
July · August · June
July · August · June
September · May · June
The weakest month is January, scoring 5 against July’s 80 — days reach only 4.7°C, 19° 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 | 4.7°C | -0.1°C | 83 mm | 13.4 | 8 h 09 | 5 | Strong coverage |
| February | 5.7°C | -0.1°C | 64 mm | 11.3 | 9 h 48 | 5 | Strong coverage |
| March | 9.6°C | 1.6°C | 63 mm | 11.4 | 11 h 41 | 17 | Strong coverage |
| April | 14.6°C | 4.1°C | 45 mm | 9.2 | 13 h 50 | 43 | Strong coverage |
| May | 18.5°C | 7.7°C | 55 mm | 10.1 | 15 h 42 | 60 | Strong coverage |
| June | 21.3°C | 10.7°C | 67 mm | 10.4 | 16 h 47 | 72 | Strong coverage |
| July | 23.6°C | 12.7°C | 80 mm | 11.5 | 16 h 21 | 80 | Strong coverage |
| August | 23.3°C | 12.6°C | 79 mm | 11.2 | 14 h 42 | 80 | Strong coverage |
| September | 19.2°C | 9.6°C | 71 mm | 10.5 | 12 h 35 | 63 | Strong coverage |
| October | 14.1°C | 6.3°C | 75 mm | 11.7 | 10 h 31 | 38 | Strong coverage |
| November | 8.7°C | 3.2°C | 72 mm | 12.7 | 8 h 39 | 14 | Strong coverage |
| December | 5.3°C | 0.8°C | 85 mm | 14.1 | 7 h 41 | 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 | 16.3°C1 Jan 2023 | -25.2°C8 Jan 1985 | 38 mm5 Jan 1992 | 159 mm2004 · driest 8 mm in 1996 | 65 |
| February | 19.0°C27 Feb 2026 | -20.4°C25 Feb 1963 | 33 mm28 Feb 1990 | 169 mm2002 · driest 7 mm in 1986 | 65 |
| March | 24.1°C31 Mar 2021 | -18.0°C1 Mar 1963 | 33 mm12 Mar 1992 | 152 mm1994 · driest 4 mm in 2025 | 65 |
| April | 30.4°C21 Apr 1968 | -6.6°C29 Apr 1976 | 28 mm7 Apr 1998 | 123 mm1998 · driest 1 mm in 2007 | 66 |
| May | 31.6°C29 May 2018 | -4.0°C4 May 1967 | 29 mm6 May 1984 | 129 mm2007 · driest 9 mm in 1989 | 66 |
| June | 36.5°C26 Jun 2026 | -1.1°C2 Jun 1975 | 89 mm29 Jun 1981 | 170 mm1985 · driest 8 mm in 2010 | 66 |
| July | 39.2°C25 Jul 2019 | 0.6°C7 Jul 1964 | 43 mm29 Jul 2005 | 173 mm1993 · driest 13 mm in 1983 | 65 |
| August | 36.8°C19 Aug 2012 | 1.0°C22 Aug 1964 | 64 mm16 Aug 2015 | 190 mm2010 · driest 10 mm in 1983 | 65 |
| September | 32.6°C13 Sep 1999 | -2.0°C30 Sep 1969 | 39 mm15 Sep 1968 | 155 mm2001 · driest 10 mm in 2006 | 65 |
| October | 26.8°C13 Oct 2018 | -6.2°C31 Oct 1966 | 56 mm27 Oct 1998 | 292 mm1998 · driest 14 mm in 1995 | 65 |
| November | 20.2°C1 Nov 2014 | -14.5°C30 Nov 1973 | 41 mm15 Nov 2015 | 157 mm2015 · driest 4 mm in 2011 | 65 |
| December | 16.1°C31 Dec 2022 | -18.5°C23 Dec 1963 | 39 mm13 Dec 2003 | 208 mm2023 · driest 8 mm in 1963 | 65 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 15 | 2 |
| February | 0 | 0 | 14 | 2 |
| March | 0 | 0 | 10 | 2 |
| April | <1 | 0 | 4 | <1 |
| May | 3 | <1 | <1 | 1 |
| June | 6 | 1 | 0 | 2 |
| July | 11 | 3 | 0 | 3 |
| August | 10 | 3 | 0 | 2 |
| September | 3 | <1 | 0 | 2 |
| October | <1 | 0 | 2 | 2 |
| November | 0 | 0 | 6 | 2 |
| December | 0 | 0 | 12 | 3 |
The best month has moved. On the 1961–1990 numbers the strongest month here was July (scoring 81); on 2011–2025 it is August (90). 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% | 42% | 6% | 56% | 0.8–7.3°C |
| February | 0% | 37% | 5% | 48% | 2.1–8.9°C |
| March | <1% | 36% | 4% | 48% | 5.6–12.0°C |
| April | 9% | 33% | 3% | 42% | 11.2–16.3°C |
| May | 26% | 34% | 5% | 44% | 15.3–20.3°C |
| June | 42% | 35% | 7% | 46% | 19.0–23.3°C |
| July | 51% | 37% | 8% | 47% | 20.0–25.8°C |
| August | 54% | 35% | 7% | 46% | 20.4–25.2°C |
| September | 27% | 34% | 6% | 43% | 16.7–20.7°C |
| October | 6% | 35% | 6% | 47% | 11.7–16.2°C |
| November | <1% | 41% | 6% | 57% | 6.5–10.5°C |
| December | 0% | 43% | 8% | 60% | 1.0–7.4°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