Khomeyni Shahr climate
Khomeyni Shahr (Iran) has a cold semi-arid climate (Köppen BSk). The average temperature over the year is 16 °C61 °F, and about 212 mm8.3 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Khomeyni Shahr climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 1049 | −327 | 338 | 291.1 |
| Feb | 1254 | −229 | 542 | 271.1 |
| Mar | 1864 | 235 | 1050 | 351.4 |
| Apr | 2373 | 744 | 1559 | 341.3 |
| May | 2985 | 1254 | 2170 | 110.4 |
| Jun | 3697 | 1864 | 2781 | 20.1 |
| Jul | 38101 | 2169 | 2985 | 10.1 |
| Aug | 3798 | 1967 | 2882 | 10.0 |
| Sep | 3391 | 1560 | 2475 | 10.0 |
| Oct | 2678 | 1050 | 1864 | 60.3 |
| Nov | 1762 | 236 | 1049 | 311.2 |
| Dec | 1153 | −129 | 541 | 341.3 |
| Year | 38101 | −327 | 1661 | 2128.3 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 61% | 39% | 3.4 | 10:13 |
| Feb | 58% | 38% | 4.4 | 10:59 |
| Mar | 52% | 40% | 5.6 | 11:53 |
| Apr | 49% | 48% | 6.3 | 12:57 |
| May | 37% | 37% | 7.4 | 13:49 |
| Jun | 20% | 19% | 8.4 | 14:17 |
| Jul | 18% | 26% | 7.9 | 14:06 |
| Aug | 18% | 22% | 7.6 | 13:21 |
| Sep | 20% | 20% | 6.5 | 12:19 |
| Oct | 31% | 29% | 5.0 | 11:18 |
| Nov | 51% | 38% | 3.7 | 10:26 |
| Dec | 60% | 37% | 3.1 | 10:00 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Khomeyni Shahr is like
The warmest month is July, with an average high of 38 °C101 °F and a low of 21 °C69 °F. The coldest is January, when highs average 10 °C49 °F and lows −3 °C27 °F. Seasons are strongly marked: the warmest month is on average 26.1 °C47 °F warmer than the coldest.
It is dry, with about 212 mm8.3 in of precipitation per year. The wettest three-month stretch is February–April, which brings 45% of the annual total. Months with less than 20 mm0.8 in on average: May–October. The wettest month is March (35 mm1.4 in), the driest is August (1 mm0.0 in).
Relative humidity ranges from 18% in August to 61% in January. The clearest skies (lowest average cloud amount, 19%) are typical of June. Average wind speed near the ground ranges from 7 km/h (4 mph) in October to 10 km/h (6 mph) in March. Daylight lasts from about 10.0 hours in December to 14.3 hours in June.
Best time to visit Khomeyni Shahr
Based on these averages, the most comfortable months for sightseeing and outdoor activities are April and May and October. Average highs then reach 23 °C73 °F to 29 °C85 °F. Precipitation is 6 mm0.3 in to 34 mm1.3 in per month.
The most challenging month is January, which is cold, with average highs of 10 °C49 °F.
Comfort score: months are ranked by how close they come to an ideal. That means an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Khomeyni Shahr
- Winter (December–February) — highs 1049 to 12 °C54 °F, lows −327 to −1 °C29 °F, about 30 mm1.2 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket, an extra layer for the cooler mornings and evenings and shoes with good grip, as frost is common.
- Spring (March–May) — highs 1864 to 29 °C85 °F, lows 235 to 12 °C54 °F, about 27 mm1.0 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 3697 to 38 °C101 °F, lows 1864 to 21 °C69 °F, about 1 mm0.1 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 1762 to 33 °C91 °F, lows 236 to 15 °C60 °F, about 13 mm0.5 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
How Khomeyni Shahr compares
The nearest larger place is Isfahan, about 13 km to the east. Compared with it, Khomeyni Shahr has practically the same average temperature. It receives 29% more precipitation (212 mm8.3 in vs 164 mm6.5 in). The difference is largest in May (0.8 °C1.4 °F cooler).
World Climates covers 82 places in Iran. By annual mean temperature, Khomeyni Shahr is the 45th warmest of them. By annual precipitation, it is the 54th wettest. See all of them on the Iran climate page.
Some places in other countries have a very similar pattern of temperature and rainfall. The closest matches are Shahrisabz (Uzbekistan, BSk), Samarkand (Uzbekistan, BSk) and Qarshi (Uzbekistan, BSk).
The same NASA POWER grid cell also contains Najafabad (pop. 235,281). Their long-term averages in this dataset are essentially the same as for Khomeyni Shahr, so they do not have separate pages.
Nearby places
- Climate in Isfahan 13 km · 16 °C62 °F · 164 mm6.5 in
- Climate in Shahin Shahr 19 km · 16 °C61 °F · 184 mm7.2 in
- Climate in Shahr-e Kord 75 km · 13 °C55 °F · 284 mm11 in
- Climate in Shahreza 81 km · 15 °C59 °F · 218 mm8.6 in
- Climate in Kashan 145 km · 20 °C67 °F · 156 mm6.2 in
- Climate in Kashan 147 km · 20 °C67 °F · 156 mm6.2 in
- Climate in Izeh 183 km · 22 °C71 °F · 284 mm11 in
- Climate in Masjed Soleyman 226 km · 26 °C79 °F · 289 mm11 in
Frequently asked questions
What is the warmest month in Khomeyni Shahr?
July is the warmest month in Khomeyni Shahr. Its average high is 38 °C (101 °F) and its average low is 21 °C (69 °F).
What is the coldest month in Khomeyni Shahr?
January is the coldest month. Its average high is 10 °C (49 °F) and its average low is -3 °C (27 °F).
When does it rain the most in Khomeyni Shahr?
March is the wettest month with about 35 mm (1.4 in) of precipitation. August is the driest with about 1 mm (0.0 in).
What is the best time to visit Khomeyni Shahr?
Judging by long-term averages, the most comfortable months are April and May and October.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station. So they can differ from airport records. The gaps are largest on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 1,916 m, while Khomeyni Shahr lies at about 1,595 m. Temperatures on this page were therefore adjusted by +2.1 °C3.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.