Qaşr-e Shīrīn, Iran Climate
The warmest month is July, with an average high of 43°C; the coldest is January, with an average low of 3°C. A normal year brings 301 mm of precipitation.
Temperature through the year
The normal daily high and low. The line marks today.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
Normals for Sep 27
- Normal high
- 36°C
- Normal low
- 21°C
- Reanalysis high
- 40°Cin 2004
- Reanalysis low
- 18°Cin 1992
- Chance of a wet day
- 2%
- Daylight
- 11 h 59 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Warmest | Coldest | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | 14°C | 3°C | 24°C (2000) | -5°C (2012) | 47 mm | 9.3 |
| February | 15°C | 4°C | 25°C (2010) | -5°C (2017) | 45 mm | 8.5 |
| March | 20°C | 7°C | 33°C (2008) | -3°C (1997) | 50 mm | 9.3 |
| April | 26°C | 12°C | 38°C (2008) | 0°C (1997) | 39 mm | 6.0 |
| May | 33°C | 18°C | 44°C (1999) | 8°C (2005) | 16 mm | 3.1 |
| June | 40°C | 24°C | 48°C (2017) | 16°C (2002) | 0 mm | 0.0 |
| July | 43°C | 27°C | 48°C (2020) | 21°C (1992) | 0 mm | 0.0 |
| August | 43°C | 27°C | 48°C (2003) | 20°C (2000) | 0 mm | 0.0 |
| September | 38°C | 23°C | 46°C (2017) | 12°C (2009) | 0 mm | 0.0 |
| October | 31°C | 18°C | 40°C (1999) | 8°C (2005) | 19 mm | 3.1 |
| November | 21°C | 10°C | 32°C (2001) | -2°C (1993) | 45 mm | 6.0 |
| December | 16°C | 5°C | 28°C (2010) | -4°C (1994) | 40 mm | 6.2 |
| Year | 28°C | 15°C | 301 mm | 52 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
301 mm in a normal year, most in March.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Qaşr-e Shīrīn.
Days with a mean dew point of 18°C or more are rare here in every month.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | -1°C | 60% | 100% | 0% | 0% | 0% | 0% | 0% |
| February | 0°C | 57% | 100% | 0% | 0% | 0% | 0% | 0% |
| March | 2°C | 51% | 100% | 0% | 0% | 0% | 0% | 0% |
| April | 6°C | 46% | 99% | 1% | 0% | 0% | 0% | 0% |
| May | 6°C | 34% | 96% | 4% | 0% | 0% | 0% | 0% |
| June | 3°C | 18% | 100% | 0% | 0% | 0% | 0% | 0% |
| July | 3°C | 15% | 100% | 0% | 0% | 0% | 0% | 0% |
| August | 3°C | 15% | 100% | 0% | 0% | 0% | 0% | 0% |
| September | 1°C | 17% | 100% | 0% | 0% | 0% | 0% | 0% |
| October | 2°C | 28% | 99% | 1% | 0% | 0% | 0% | 0% |
| November | 2°C | 46% | 99% | 1% | 0% | 0% | 0% | 0% |
| December | 0°C | 57% | 100% | 0% | 0% | 0% | 0% | 0% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is August, with the sky 10 percent covered on average; the cloudiest is April, at 54 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is July, averaging 13.3 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 17, with 14 h 28 min of daylight; the shortest is Dec 19, with 9 h 50 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Qaşr-e Shīrīn in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Nearby
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.