Qarchak climate
Qarchak (Iran) has a hot semi-arid climate (Köppen BSh). The average temperature over the year is 18 °C65 °F, and about 334 mm13 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Qarchak climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 949 | 032 | 540 | 371.4 |
| Feb | 1253 | 235 | 744 | 361.4 |
| Mar | 1864 | 643 | 1254 | 351.4 |
| Apr | 2373 | 1152 | 1763 | 331.3 |
| May | 3086 | 1762 | 2374 | 130.5 |
| Jun | 3697 | 2271 | 2984 | 90.3 |
| Jul | 38101 | 2576 | 3189 | 100.4 |
| Aug | 3798 | 2374 | 3086 | 120.5 |
| Sep | 3290 | 2067 | 2678 | 220.9 |
| Oct | 2577 | 1457 | 1967 | 411.6 |
| Nov | 1660 | 643 | 1152 | 491.9 |
| Dec | 1151 | 236 | 643 | 361.4 |
| Year | 38101 | 032 | 1865 | 33413 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 62% | 53% | 2.7 | 10:01 |
| Feb | 59% | 54% | 3.5 | 10:51 |
| Mar | 52% | 57% | 4.7 | 11:52 |
| Apr | 50% | 58% | 5.7 | 13:03 |
| May | 40% | 48% | 7.0 | 14:01 |
| Jun | 28% | 33% | 8.0 | 14:32 |
| Jul | 27% | 35% | 7.6 | 14:19 |
| Aug | 28% | 27% | 7.1 | 13:29 |
| Sep | 32% | 25% | 6.0 | 12:21 |
| Oct | 45% | 37% | 4.4 | 11:13 |
| Nov | 58% | 51% | 3.0 | 10:15 |
| Dec | 62% | 51% | 2.5 | 9:46 |
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 Qarchak is like
The warmest month is July, with an average high of 38 °C101 °F and a low of 25 °C76 °F. The coldest is January, when highs average 9 °C49 °F and lows 0 °C32 °F. Seasons are strongly marked: the warmest month is on average 26.7 °C48.1 °F warmer than the coldest.
It is dry, with about 334 mm13 in of precipitation per year. The wettest three-month stretch is October–December, which brings 38% of the annual total. Months with less than 20 mm0.8 in on average: May–August. The wettest month is November (49 mm1.9 in), the driest is June (9 mm0.3 in).
Relative humidity ranges from 27% in July to 62% in December. The clearest skies (lowest average cloud amount, 25%) are typical of September. Average wind speed near the ground ranges from 5 km/h (3 mph) in December to 9 km/h (6 mph) in July. Daylight lasts from about 9.8 hours in December to 14.5 hours in June.
Best time to visit Qarchak
Based on these averages, the most comfortable months for sightseeing and outdoor activities are April and May and October: average highs of 23 °C73 °F to 30 °C86 °F with 13 mm0.5 in to 41 mm1.6 in of precipitation per month.
The most challenging month is July, which is hot, with average highs of 38 °C101 °F.
Comfort score: months are ranked by how close they come to 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 Qarchak
- Winter (December–February) — highs 949 to 12 °C53 °F, lows 032 to 2 °C36 °F, about 36 mm1.4 in of precipitation a month. Pack a warm coat, layers and closed shoes.
- Spring (March–May) — highs 1864 to 30 °C86 °F, lows 643 to 17 °C62 °F, about 27 mm1.1 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 2271 to 25 °C76 °F, about 10 mm0.4 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 1660 to 32 °C90 °F, lows 643 to 20 °C67 °F, about 38 mm1.5 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 Qarchak compares
Compared with Tehran, about 33 km to the northwest, Qarchak is on average 1.2 °C2.1 °F warmer and receives 7% more precipitation (334 mm13 in vs 311 mm12 in). The difference is largest in December (1.5 °C2.7 °F warmer).
Of the 82 places in Iran covered by World Climates, Qarchak is the 34th warmest by annual mean temperature and the 19th wettest by annual precipitation. See all of them on the Iran climate page.
Places in other countries with the most similar temperature and rainfall pattern: Andijon (Uzbekistan, BWk), MSila (Algeria, BSh) and Bou Saâda (Algeria, BSh).
The same NASA POWER grid cell also contains Pakdasht (pop. 236,319), Varamin (pop. 225,628) and Pardis (pop. 114,249). Their long-term averages in this dataset are essentially the same as for Qarchak, so they do not have separate pages.
Nearby places
- Tehran 33 km · 17 °C62 °F · 311 mm12 in
- Karaj 69 km · 14 °C58 °F · 509 mm20 in
- Nazarabad 105 km · 16 °C60 °F · 426 mm17 in
- Qom 108 km · 19 °C66 °F · 207 mm8.1 in
- Saveh 120 km · 18 °C65 °F · 248 mm9.8 in
- Amol 135 km · 19 °C67 °F · 647 mm25 in
- Chalus 137 km · 21 °C70 °F · 799 mm31 in
- Kashan 159 km · 20 °C67 °F · 156 mm6.2 in
Frequently asked questions
What is the warmest month in Qarchak?
July is the warmest month in Qarchak, with an average high of 38 °C (101 °F) and an average low of 25 °C (76 °F).
What is the coldest month in Qarchak?
January is the coldest month, with an average high of 9 °C (49 °F) and an average low of 0 °C (32 °F).
When does it rain the most in Qarchak?
November is the wettest month with about 49 mm (1.9 in) of precipitation; June is the driest with about 9 mm (0.3 in).
What is the best time to visit Qarchak?
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 — most of all 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 1,555 m, while Qarchak lies at about 962 m. Temperatures on this page were therefore adjusted by +3.9 °C6.9 °F using the standard lapse rate of 6.5 °C per 1,000 m.