May
May · October · April
Algeria · 1991–2020
May leads for comfortable weather in Hennaya: typically 25.8°C by day, 12.5°C at night, with 26 mm of rain. Based on measured 1991–2020 NOAA station history.
May · October · April
September · June · July
March · November · April
The weakest month is January, scoring 54 against May’s 89 — days reach only 17.1°C, 7° below the 24°C the score treats as ideal, and nights drop to 5.4°C.
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 | 17.1°C | 5.4°C | 52 mm | 6.9 | 10 h 03 | 54 | Good coverage |
| February | 17.6°C | 6.3°C | 41 mm | 5.8 | 10 h 52 | 60 | Good coverage |
| March | 20.1°C | 7.4°C | 44 mm | 5.2 | 11 h 52 | 70 | Strong coverage |
| April | 22.3°C | 9.2°C | 39 mm | 5.7 | 13 h 01 | 81 | Strong coverage |
| May | 25.8°C | 12.5°C | 26 mm | 3.7 | 13 h 58 | 89 | Strong coverage |
| June | 29.7°C | 16.1°C | 6 mm | 1.2 | 14 h 29 | 79 | Strong coverage |
| July | 33.2°C | 19.5°C | 1 mm | 0.4 | 14 h 17 | 62 | Strong coverage |
| August | 33.7°C | 20.1°C | 2 mm | 0.7 | 13 h 28 | 59 | Strong coverage |
| September | 29.7°C | 17.3°C | 16 mm | 2.5 | 12 h 21 | 77 | Strong coverage |
| October | 26.5°C | 13.6°C | 27 mm | 4.2 | 11 h 15 | 88 | Strong coverage |
| November | 21°C | 9°C | 44 mm | 5.6 | 10 h 17 | 76 | Good coverage |
| December | 17.9°C | 6.4°C | 39 mm | 6.1 | 9 h 49 | 61 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 28.0°C26 Jan 2024 | -2.4°C16 Jan 1985 | 57 mm20 Jan 1994 | 111 mm2009 · driest 0 mm in 1993 | 43 |
| February | 28.6°C25 Feb 2007 | -2.9°C17 Feb 2005 | 50 mm28 Feb 1993 | 97 mm1986 · driest 0 mm in 2020 | 43 |
| March | 35.8°C23 Mar 2024 | -4.3°C9 Mar 2012 | 73 mm20 Mar 1989 | 151 mm1995 · driest 1 mm in 2023 | 44 |
| April | 36.7°C6 Apr 2024 | 0.0°C12 Apr 1994 | 99 mm4 Apr 1987 | 109 mm1994 · driest 0 mm in 2023 | 44 |
| May | 42.1°C18 May 2006 | 3.6°C5 May 1992 | 38 mm4 May 1998 | 101 mm1984 · driest 0 mm in 2024 | 45 |
| June | 41.5°C28 Jun 2012 | 8.0°C8 Jun 2001 | 29 mm1 Jun 1992 | 55 mm1992 · driest 0 mm in 1991 | 44 |
| July | 47.0°C22 Jul 2009 | 7.5°C21 Jul 2007 | 8 mm22 Jul 2019 | 9 mm1987 · driest 0 mm in 1993 | 44 |
| August | 46.2°C24 Aug 2004 | 9.5°C18 Aug 1988 | 45 mm24 Aug 2002 | 45 mm2002 · driest 0 mm in 2009 | 44 |
| September | 44.2°C12 Sep 2022 | 9.0°C27 Sep 1995 | 30 mm15 Sep 2009 | 92 mm2009 · driest 0 mm in 2002 | 43 |
| October | 40.3°C2 Oct 2006 | 5.4°C26 Oct 1982 | 91 mm3 Oct 1987 | 126 mm1987 · driest 0 mm in 1983 | 43 |
| November | 35.0°C16 Nov 2009 | 0.5°C5 Nov 1986 | 94 mm30 Nov 1982 | 133 mm2012 · driest 0 mm in 1996 | 44 |
| December | 30.4°C9 Dec 2010 | -1.5°C27 Dec 2020 | 48 mm11 Dec 2003 | 105 mm2008 · driest 0 mm in 2015 | 43 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | <1 | 0 | <1 | 1 |
| February | <1 | 0 | <1 | 1 |
| March | 2 | <1 | <1 | 1 |
| April | 5 | <1 | 0 | <1 |
| May | 13 | 4 | 0 | <1 |
| June | 22 | 11 | 0 | <1 |
| July | 25 | 21 | 0 | 0 |
| August | 25 | 23 | 0 | <1 |
| September | 23 | 11 | 0 | <1 |
| October | 17 | 4 | 0 | <1 |
| November | 3 | <1 | 0 | 1 |
| December | <1 | 0 | <1 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 18% | 21% | 4% | 27% | 15.0–18.6°C |
| February | 20% | 22% | 5% | 22% | 15.3–20.0°C |
| March | 48% | 17% | 4% | 16% | 18.1–21.9°C |
| April | 64% | 19% | 3% | 21% | 20.2–24.4°C |
| May | 84% | 14% | 3% | 10% | 23.3–27.4°C |
| June | 95% | 5% | <1% | 2% | 27.7–31.4°C |
| July | 98% | 2% | 0% | 0% | 31.2–34.6°C |
| August | 98% | 2% | <1% | <1% | 31.4–35.1°C |
| September | 91% | 9% | 2% | 6% | 28.4–31.8°C |
| October | 86% | 13% | 2% | 10% | 24.1–28.8°C |
| November | 59% | 19% | 4% | 21% | 19.1–23.1°C |
| December | 26% | 18% | 3% | 15% | 16.3–19.8°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