AU
Level 4Do not travel
Do not travel
Iran · Month guide
Iran in September
Around 33 °C with 6 mm of rain and 8.9 hours of sun a day.
September is a challenging month for Iran overall; regional choices matter most. Around 33 °C with 6 mm of rain and 8.9 hours of sun a day. Use the regional grid below to find where this month works best — national averages hide the swings between coast, highlands, and inland.
Acceptable
Iran · September
What the weather usually does
Iran · typical month
- Day / night19 – 33 °CYear range 1 – 37 °C
- Rainfall6 mmYear range 4 – 47 mm
- Sunshine8.9 hr / dayYear range 6.8 – 9.9 hr / day
What’s open · September
Things to do in Iran in September
Nothing in Iran shuts for the season, and 1 thing below is at its best in September.
- At its bestPersepolis
spring and autumn, when the site sits between about 15 and 25 °C
Sources: adventureiran.com, surfiran.com
Opening seasons are checked by hand against the operators and parks themselves, not derived from the climate figures on this page. Last reviewed 2026-08-28. Dates move — confirm before you book.
31 regions · current month
Iran, taken apart
- Alborz27°C now · 3–32 °C yr
- Ardabil25°C now · 5–29 °C yr
- Bushehr39°C now · 20–42 °C yr
- Chaharmahal and Bakhtiari29°C now · 4–33 °C yr
- East Azerbaijan26°C now · 3–31 °C yr
- Fars34°C now · 14–38 °C yr
- Gilan24°C now · 8–27 °C yr
- Golestan30°C now · 11–34 °C yr
- Hamadan30°C now · 6–35 °C yr
- Hormozgan37°C now · 21–39 °C yr
- Ilam37°C now · 13–41 °C yr
- Isfahan33°C now · 11–38 °C yr
- Kerman35°C now · 16–39 °C yr
- Kermanshah33°C now · 9–38 °C yr
- Khuzestan42°C now · 17–45 °C yr
- Kohgiluyeh and Boyer-Ahmad34°C now · 11–37 °C yr
- Kurdistan30°C now · 4–35 °C yr
- Lorestan32°C now · 7–36 °C yr
- Markazi30°C now · 7–35 °C yr
- Mazandaran23°C now · 6–26 °C yr
- North Khorasan28°C now · 7–33 °C yr
- Qazvin28°C now · 5–32 °C yr
- Qom34°C now · 11–39 °C yr
- Razavi Khorasan31°C now · 9–36 °C yr
- Semnan33°C now · 11–38 °C yr
- Sistan and Baluchestan37°C now · 19–40 °C yr
- South Khorasan34°C now · 13–38 °C yr
- Tehran28°C now · 5–33 °C yr
- West Azerbaijan27°C now · 2–32 °C yr
- Yazd35°C now · 14–40 °C yr
- Zanjan28°C now · 4–32 °C yr
Safety · 6 governments
What the governments say about Iran
Combined advisory · most-cautious-wins
Do not travel
Highest level across 6 governments · Advisory last changed
See breakdown by countryHide breakdown
CA
Level 4Do not travel
Do not travel
DE
Level 4Do not travel
Do not travel
NL
Level 4Do not travel
Do not travel
UK
Level 4Do not travel
Do not travel
US
Level 4Do not travel
Do not travel
Climate at a glance · 10-year ERA5
A decade of weather, in one page
— daytime high— overnight low▬ typical range
View data table
| Month | Average daytime high (°C) | Average overnight low (°C) | Typical low | Typical high |
|---|---|---|---|---|
| January | 12.2 | 0.8 | -3.6 | 16.4 |
| February | 14.3 | 2.8 | -2.3 | 20.2 |
| March | 19.5 | 7.7 | 3.2 | 25.1 |
| April | 25.0 | 12.6 | 7.8 | 30.2 |
| May | 30.6 | 17.5 | 14.1 | 35.2 |
| June | 35.8 | 22.0 | 19.3 | 38.2 |
| July | 37.3 | 24.3 | 22.7 | 38.9 |
| August | 35.9 | 22.5 | 19.5 | 38.5 |
| September | 33.1 | 18.8 | 15.6 | 36.1 |
| October | 26.8 | 13.0 | 8.6 | 30.7 |
| November | 19.1 | 6.9 | 2.0 | 24.6 |
| December | 14.2 | 2.7 | -1.1 | 18.8 |
View data table
| Month | Rainfall (mm) |
|---|---|
| January | 38 |
| February | 40 |
| March | 47 |
| April | 35 |
| May | 22 |
| June | 6 |
| July | 7 |
| August | 4 |
| September | 6 |
| October | 13 |
| November | 26 |
| December | 32 |
View data table
| Month | Sunshine hours (hr / day) |
|---|---|
| January | 7.3 |
| February | 7.9 |
| March | 8.2 |
| April | 8.8 |
| May | 9.4 |
| June | 9.9 |
| July | 9.3 |
| August | 9.4 |
| September | 8.9 |
| October | 8.4 |
| November | 7.3 |
| December | 6.8 |
— average▬ typical range
View data table
| Month | Average wind speed (km/h) | Typical low | Typical high |
|---|---|---|---|
| January | 8.4 | 6.1 | 11.8 |
| February | 9.1 | 6.5 | 13.2 |
| March | 10.2 | 7.3 | 14.4 |
| April | 10.1 | 7.8 | 13.4 |
| May | 10.3 | 8.3 | 12.8 |
| June | 11.2 | 9.2 | 13.5 |
| July | 11.9 | 9.8 | 14.2 |
| August | 11.3 | 9.2 | 13.7 |
| September | 9.6 | 8.0 | 11.6 |
| October | 8.4 | 6.8 | 10.8 |
| November | 7.6 | 5.9 | 10.5 |
| December | 7.5 | 5.7 | 11.0 |
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Sea surface temperature for Iran is part of the Premium map and its district-level detail. See what Premium includes.
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Humidity
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