July
July · August · June
France · 1991–2020
July leads for comfortable weather in Desvres: typically 22.7°C by day, 12.9°C at night, with 63 mm of rain. Based on measured 1991–2020 NOAA station history.
July · August · June
July · August · June
June · September · May
The weakest month is December, scoring 6 against July’s 82 — days reach only 7.6°C, 16° 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 | 7.2°C | 1.8°C | 65 mm | 11.7 | 8.9°C | 8 h 25 | 9 | Strong coverage |
| February | 8°C | 1.9°C | 52 mm | 10.1 | 7.9°C | 9 h 56 | 15 | Strong coverage |
| March | 11.2°C | 3.5°C | 53 mm | 10 | 7.9°C | 11 h 42 | 28 | Strong coverage |
| April | 14.7°C | 5.1°C | 46 mm | 8.6 | 9.3°C | 13 h 43 | 45 | Strong coverage |
| May | 17.7°C | 8.1°C | 58 mm | 9.4 | 11.4°C | 15 h 28 | 58 | Strong coverage |
| June | 20.5°C | 10.8°C | 62 mm | 9 | 13.8°C | 16 h 27 | 72 | Strong coverage |
| July | 22.7°C | 12.9°C | 63 mm | 9.3 | 16.1°C | 16 h 03 | 82 | Strong coverage |
| August | 22.8°C | 13.2°C | 83 mm | 10 | 17.7°C | 14 h 32 | 80 | Strong coverage |
| September | 19.8°C | 10.7°C | 63 mm | 9.7 | 17.5°C | 12 h 33 | 68 | Strong coverage |
| October | 15.5°C | 8.2°C | 77 mm | 11.9 | 15.7°C | 10 h 37 | 46 | Strong coverage |
| November | 10.7°C | 5°C | 81 mm | 12.6 | 13.3°C | 8 h 52 | 23 | Strong coverage |
| December | 7.6°C | 2.2°C | 89 mm | 13.1 | 10.8°C | 7 h 59 | 6 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 20.0°C24 Jan 1978 | -17.3°C17 Jan 1985 | 58 mm5 Jan 1982 | 169 mm2021 · driest 3 mm in 1997 | 49 |
| February | 20.0°C6 Feb 1978 | -12.0°C10 Feb 1986 | 33 mm13 Feb 2002 | 144 mm2020 · driest 0 mm in 1986 | 48 |
| March | 25.2°C31 Mar 2021 | -9.8°C4 Mar 2005 | 30 mm7 Mar 1989 | 169 mm2001 · driest 1 mm in 1993 | 49 |
| April | 26.4°C19 Apr 2018 | -3.6°C11 Apr 2003 | 32 mm3 Apr 1978 | 129 mm2000 · driest 3 mm in 1995 | 49 |
| May | 31.4°C27 May 2005 | -0.4°C9 May 1984 | 45 mm19 May 2017 | 110 mm2006 · driest 3 mm in 1990 | 49 |
| June | 35.2°C18 Jun 2022 | 2.0°C1 Jun 1975 | 61 mm6 Jun 2002 | 146 mm2021 · driest 3 mm in 1973 | 48 |
| July | 41.3°C25 Jul 2019 | 0.0°C2 Jul 1977 | 57 mm24 Jul 2023 | 140 mm2012 · driest 0 mm in 1974 | 49 |
| August | 37.3°C10 Aug 2003 | 3.6°C22 Aug 1998 | 155 mm12 Aug 1992 | 209 mm1992 · driest 1 mm in 1973 | 49 |
| September | 33.1°C10 Sep 2023 | 1.9°C30 Sep 2018 | 40 mm26 Sep 1975 | 166 mm2017 · driest 8 mm in 1997 | 49 |
| October | 27.8°C1 Oct 2011 | -4.6°C28 Oct 2002 | 40 mm15 Oct 1976 | 206 mm2000 · driest 7 mm in 1985 | 49 |
| November | 21.1°C7 Nov 2015 | -6.9°C24 Nov 1998 | 44 mm14 Nov 2010 | 188 mm2022 · driest 2 mm in 1995 | 49 |
| December | 20.0°C12 Dec 1977 | -11.1°C29 Dec 1996 | 36 mm23 Dec 2012 | 179 mm2011 · driest 14 mm in 1987 | 48 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 7 | 2 |
| February | 0 | 0 | 7 | 1 |
| March | 0 | 0 | 4 | 1 |
| April | <1 | 0 | 2 | 1 |
| May | 2 | 0 | 0 | 2 |
| June | 4 | <1 | 0 | 2 |
| July | 8 | 2 | 0 | 2 |
| August | 7 | 2 | 0 | 2 |
| September | 3 | <1 | 0 | 2 |
| October | <1 | 0 | <1 | 3 |
| November | 0 | 0 | 2 | 3 |
| December | 0 | 0 | 7 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 39% | 6% | 51% | 4.4–9.4°C |
| February | <1% | 35% | 4% | 48% | 5.0–10.7°C |
| March | 1% | 35% | 4% | 45% | 8.4–13.0°C |
| April | 9% | 29% | 4% | 36% | 12.0–16.2°C |
| May | 23% | 31% | 5% | 41% | 14.7–19.5°C |
| June | 39% | 30% | 6% | 39% | 18.3–22.5°C |
| July | 58% | 29% | 5% | 36% | 20.1–25.1°C |
| August | 59% | 30% | 7% | 40% | 20.3–25.2°C |
| September | 36% | 33% | 7% | 46% | 17.1–21.9°C |
| October | 8% | 38% | 8% | 52% | 13.4–17.9°C |
| November | <1% | 42% | 9% | 59% | 8.8–12.9°C |
| December | <1% | 41% | 8% | 59% | 5.3–9.7°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