Bandar-e Mahshahr climate
Bandar-e Mahshahr (Iran) has a hot desert climate (Köppen BWh). The average temperature over the year is 27 °C80 °F, and about 186 mm7.3 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Bandar-e Mahshahr climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 1966 | 846 | 1356 | 381.5 |
| Feb | 2170 | 949 | 1560 | 170.7 |
| Mar | 2780 | 1456 | 2068 | 180.7 |
| Apr | 3290 | 1966 | 2678 | 150.6 |
| May | 40104 | 2578 | 3391 | 40.1 |
| Jun | 45113 | 2984 | 3798 | 60.2 |
| Jul | 46115 | 3188 | 39102 | 30.1 |
| Aug | 46114 | 3188 | 38101 | 20.1 |
| Sep | 42108 | 2781 | 3595 | 00.0 |
| Oct | 3696 | 2374 | 2985 | 70.3 |
| Nov | 2679 | 1660 | 2170 | 361.4 |
| Dec | 2069 | 1050 | 1559 | 391.5 |
| Year | 46115 | 846 | 2780 | 1867.3 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 60% | 52% | 3.3 | 10:22 |
| Feb | 54% | 51% | 4.3 | 11:04 |
| Mar | 44% | 46% | 5.4 | 11:54 |
| Apr | 38% | 55% | 6.1 | 12:53 |
| May | 25% | 39% | 7.3 | 13:41 |
| Jun | 17% | 25% | 8.1 | 14:07 |
| Jul | 19% | 29% | 7.6 | 13:56 |
| Aug | 23% | 27% | 7.2 | 13:15 |
| Sep | 23% | 29% | 6.4 | 12:18 |
| Oct | 31% | 36% | 5.0 | 11:22 |
| Nov | 47% | 50% | 3.6 | 10:34 |
| Dec | 58% | 51% | 3.1 | 10:11 |
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 Bandar-e Mahshahr is like
The warmest month is July, with an average high of 46 °C115 °F and a low of 31 °C88 °F. The coldest is January, when highs average 19 °C66 °F and lows 8 °C46 °F. Seasons are strongly marked: the warmest month is on average 25.5 °C45.8 °F warmer than the coldest.
It is dry, with about 186 mm7.3 in of precipitation per year. The wettest three-month stretch is November–January, which brings 61% of the annual total. Months with less than 20 mm0.8 in on average: February–October. The wettest month is December (39 mm1.5 in), the driest is September (0 mm0.0 in).
Relative humidity ranges from 17% in June to 60% in January. The clearest skies (lowest average cloud amount, 25%) are typical of June. Average wind speed near the ground ranges from 9 km/h (6 mph) in October to 13 km/h (8 mph) in June. Daylight lasts from about 10.2 hours in December to 14.1 hours in June.
Best time to visit Bandar-e Mahshahr
Based on these averages, the most comfortable months for sightseeing and outdoor activities are November–March: average highs of 19 °C66 °F to 27 °C80 °F with 17 mm0.7 in to 39 mm1.5 in of precipitation per month.
The most challenging month is July, which is hot, with average highs of 46 °C115 °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 Bandar-e Mahshahr
- Winter (December–February) — highs 1966 to 21 °C70 °F, lows 846 to 10 °C50 °F, about 31 mm1.2 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.
- Spring (March–May) — highs 2780 to 40 °C104 °F, lows 1456 to 25 °C78 °F, about 12 mm0.5 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Summer (June–August) — highs 45113 to 46 °C115 °F, lows 2984 to 31 °C88 °F, about 4 mm0.1 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 2679 to 42 °C108 °F, lows 1660 to 27 °C81 °F, about 15 mm0.6 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Bandar-e Mahshahr compares
Compared with Khorramshahr, about 97 km to the west, Bandar-e Mahshahr has practically the same average temperature and receives 56% more precipitation (186 mm7.3 in vs 119 mm4.7 in). The difference is largest in December (1.3 °C2.3 °F warmer).
Of the 82 places in Iran covered by World Climates, Bandar-e Mahshahr is the 5th warmest by annual mean temperature and the 61st 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: Abu al-Kahsib (Iraq, BWh), Al Qurnah (Iraq, BWh) and Al Madinah (Iraq, BWh).
Nearby places
- Al Faw 94 km · 26 °C79 °F · 89 mm3.5 in
- Khorramshahr 97 km · 27 °C80 °F · 119 mm4.7 in
- Ahvaz 97 km · 27 °C80 °F · 197 mm7.8 in
- Behbahan 101 km · 26 °C78 °F · 308 mm12 in
- Abu al-Kahsib 126 km · 27 °C80 °F · 119 mm4.7 in
- Umm Qaşr 135 km · 27 °C80 °F · 84 mm3.3 in
- Basrah 135 km · 27 °C80 °F · 86 mm3.4 in
- Masjed Soleyman 154 km · 26 °C79 °F · 289 mm11 in
Frequently asked questions
What is the warmest month in Bandar-e Mahshahr?
July is the warmest month in Bandar-e Mahshahr, with an average high of 46 °C (115 °F) and an average low of 31 °C (88 °F).
What is the coldest month in Bandar-e Mahshahr?
January is the coldest month, with an average high of 19 °C (66 °F) and an average low of 8 °C (46 °F).
When does it rain the most in Bandar-e Mahshahr?
December is the wettest month with about 39 mm (1.5 in) of precipitation; September is the driest with about 0 mm (0.0 in).
What is the best time to visit Bandar-e Mahshahr?
Judging by long-term averages, the most comfortable months are November–March.
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.