Bandar-e Deylam, Iran Climate
The warmest month is August, with an average high of 40°C; the coldest is January, with an average low of 13°C. A normal year brings 237 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 24
- Normal high
- 36°C
- Normal low
- 29°C
- Reanalysis high
- 40°Cin 2019
- Reanalysis low
- 26°Cin 1996
- Chance of a wet day
- 1%
- Daylight
- 12 h 05 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 | 18°C | 13°C | 23°C (1994) | 6°C (2012) | 50 mm | 6.2 |
| February | 19°C | 13°C | 25°C (2020) | 5°C (2017) | 28 mm | 5.7 |
| March | 23°C | 16°C | 32°C (2018) | 8°C (1992) | 25 mm | 3.1 |
| April | 28°C | 21°C | 36°C (2008) | 12°C (1997) | 15 mm | 3.0 |
| May | 34°C | 26°C | 41°C (2020) | 19°C (2003) | 6 mm | 0.0 |
| June | 38°C | 30°C | 44°C (2018) | 25°C (1993) | 3 mm | 0.0 |
| July | 40°C | 32°C | 47°C (2018) | 26°C (1994) | 0 mm | 0.0 |
| August | 40°C | 32°C | 45°C (2018) | 28°C (1991) | 3 mm | 0.0 |
| September | 37°C | 30°C | 44°C (2016) | 25°C (2016) | 0 mm | 0.0 |
| October | 33°C | 27°C | 39°C (2018) | 20°C (2018) | 6 mm | 0.0 |
| November | 26°C | 20°C | 33°C (2006) | 12°C (1992) | 48 mm | 6.0 |
| December | 20°C | 15°C | 26°C (1998) | 7°C (2006) | 53 mm | 6.2 |
| Year | 30°C | 23°C | 237 mm | 30 |
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.
237 mm in a normal year, most in December.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Bandar-e Deylam.
The muggiest month is August, when 69 percent of days are muggy or worse, with a mean dew point of 18°C or more.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | 8°C | 64% | 88% | 11% | 1% | 0% | 0% | 0% |
| February | 8°C | 62% | 89% | 10% | 1% | 0% | 0% | 0% |
| March | 10°C | 58% | 78% | 18% | 4% | 0% | 0% | 0% |
| April | 13°C | 53% | 41% | 37% | 20% | 2% | 0% | 0% |
| May | 15°C | 43% | 13% | 44% | 34% | 9% | 1% | 0% |
| June | 16°C | 37% | 3% | 35% | 45% | 14% | 3% | 0% |
| July | 19°C | 40% | 0% | 4% | 43% | 32% | 13% | 7% |
| August | 21°C | 44% | 0% | 2% | 28% | 29% | 21% | 19% |
| September | 18°C | 43% | 2% | 23% | 33% | 21% | 15% | 7% |
| October | 16°C | 46% | 20% | 32% | 22% | 20% | 6% | 0% |
| November | 12°C | 53% | 58% | 20% | 15% | 6% | 1% | 0% |
| December | 10°C | 61% | 79% | 14% | 7% | 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 June, with the sky 15 percent covered on average; the cloudiest is January, at 56 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 June, averaging 17.3 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 16, with 14 h 05 min of daylight; the shortest is Dec 20, with 10 h 12 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 Bandar-e Deylam 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.