May
Other strong months: September and October
Iran · 1991–2020
For Āz̄arshahr, May has the most comfortable weather in our climate comparison. Typical daytime highs are 23.6°C, nights average 11.2°C, and rainfall totals about 31 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Other strong months: September and October
Other strong months: May and April
Make the answer personal
Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.
2 months fit your choices for Āz̄arshahr
January has the lowest comfort score at 5 out of 100, compared with May at 89. The main reason is that days reach only 3.6°C, 20° below the 24°C the score treats as ideal.
Quick answers
These answers come from the same measured monthly climate record shown on this page.
May is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 23.6°C and 31 mm of rain.
August is hottest in this record, with a typical daytime high of 33.6°C and a night-time low of 20.3°C.
September has the lowest monthly rainfall total at 4 mm.
No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.
Month by month
The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 3.6°C | -5°C | 16 mm | 3.1 | 9 h 49 | 5 | Strong coverage |
| February | 6.6°C | -2.8°C | 18 mm | 3.5 | 10 h 44 | 10 | Strong coverage |
| March | 12°C | 1.1°C | 39 mm | 4.9 | 11 h 50 | 33 | Strong coverage |
| April | 17.9°C | 6.4°C | 52 mm | 6.4 | 13 h 07 | 59 | Strong coverage |
| May | 23.6°C | 11.2°C | 31 mm | 5.8 | 14 h 11 | 89 | Strong coverage |
| June | 30°C | 16.5°C | 27 mm | 2.2 | 14 h 46 | 77 | Strong coverage |
| July | 33.5°C | 20.3°C | 19 mm | 1.5 | 14 h 32 | 59 | Strong coverage |
| August | 33.6°C | 20.3°C | 5 mm | 0.6 | 13 h 37 | 59 | Strong coverage |
| September | 28.9°C | 15.3°C | 4 mm | 1.1 | 12 h 23 | 83 | Strong coverage |
| October | 21.5°C | 8.9°C | 17 mm | 2.7 | 11 h 09 | 81 | Strong coverage |
| November | 12.3°C | 2.3°C | 27 mm | 3.9 | 10 h 05 | 38 | Strong coverage |
| December | 5.6°C | -2.9°C | 21 mm | 4.4 | 9 h 34 | 6 | Strong coverage |
What has changed
Each bar shows the difference between the 2011–2025 average daytime high and the 1961–1990 average for the same month at the same station. A blank month does not have enough older observations for a reliable comparison.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 16.0°C6 Jan 1966 | -25.0°C22 Jan 1964 | 24 mm8 Jan 2006 | 57 mm2024 · driest 1 mm in 1992 | 75 |
| February | 19.2°C16 Feb 2021 | -22.0°C3 Feb 1967 | 28 mm6 Feb 2021 | 83 mm2018 · driest 0 mm in 1994 | 75 |
| March | 25.4°C5 Mar 2004 | -19.0°C3 Mar 1985 | 103 mm16 Mar 1992 | 131 mm2006 · driest 0 mm in 1995 | 75 |
| April | 31.0°C28 Apr 2008 | -12.0°C5 Apr 1965 | 112 mm13 Apr 1991 | 120 mm1991 · driest 1 mm in 1993 | 75 |
| May | 34.4°C31 May 2024 | 0.0°C19 May 2010 | 27 mm1 May 2004 | 69 mm2024 · driest 1 mm in 1995 | 75 |
| June | 39.8°C24 Jun 2021 | 4.0°C5 Jun 1957 | 164 mm25 Jun 1992 | 186 mm1992 · driest 0 mm in 2006 | 74 |
| July | 42.0°C26 Jul 1966 | 7.0°C12 Jul 1958 | 201 mm6 Jul 1996 | 209 mm1996 · driest 0 mm in 2022 | 75 |
| August | 41.5°C4 Aug 2025 | 10.0°C27 Aug 1959 | 37 mm13 Aug 2020 | 52 mm2020 · driest 0 mm in 2006 | 75 |
| September | 38.1°C3 Sep 2024 | 4.0°C27 Sep 1956 | 9 mm20 Sep 2018 | 26 mm2008 · driest 0 mm in 1997 | 74 |
| October | 30.6°C1 Oct 2002 | -8.7°C22 Oct 2005 | 57 mm30 Oct 1996 | 68 mm2006 · driest 0 mm in 2003 | 74 |
| November | 23.4°C1 Nov 2005 | -17.0°C30 Nov 1953 | 102 mm2 Nov 2008 | 111 mm2008 · driest 0 mm in 2010 | 74 |
| December | 21.8°C10 Dec 1998 | -19.5°C6 Dec 1994 | 26 mm7 Dec 2018 | 90 mm2018 · driest 0 mm in 1989 | 74 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 23 | <1 |
| February | 0 | 0 | 19 | <1 |
| March | 0 | 0 | 10 | <1 |
| April | 2 | <1 | 1 | 1 |
| May | 12 | 1 | 0 | <1 |
| June | 26 | 16 | 0 | <1 |
| July | 30 | 27 | 0 | <1 |
| August | 30 | 27 | 0 | <1 |
| September | 25 | 13 | 0 | 0 |
| October | 6 | <1 | 0 | <1 |
| November | 0 | 0 | 7 | <1 |
| December | 0 | 0 | 18 | <1 |
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | 0% | 12% | 1% | 9% | -1.6–6.4°C |
| February | 0% | 13% | 1% | 10% | 1.1–9.2°C |
| March | 5% | 17% | 2% | 15% | 7.8–14.5°C |
| April | 35% | 20% | 4% | 22% | 14.9–20.5°C |
| May | 70% | 21% | 3% | 21% | 20.8–25.4°C |
| June | 93% | 8% | 1% | 5% | 26.9–31.2°C |
| July | 95% | 5% | <1% | <1% | 31.3–34.9°C |
| August | 98% | 2% | <1% | <1% | 31.5–34.9°C |
| September | 95% | 4% | 0% | 3% | 26.8–30.2°C |
| October | 67% | 9% | 1% | 6% | 18.7–23.1°C |
| November | 3% | 13% | 2% | 10% | 10.2–14.4°C |
| December | 0% | 13% | 1% | 12% | 1.7–8.4°C |
A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.
The evidence behind this page
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The weather comparison for Āz̄arshahr is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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