Al-Musayab climate
Al-Musayab (Iraq) has a hot desert climate (Köppen BWh). The average temperature over the year is 24 °C75 °F, and about 181 mm7.1 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Al-Musayab climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 1661 | 337 | 949 | 341.3 | 4 |
| Feb | 1966 | 541 | 1253 | 301.2 | 2 |
| Mar | 2577 | 949 | 1763 | 261.0 | 0 |
| Apr | 3188 | 1559 | 2373 | 220.9 | 0 |
| May | 38100 | 2171 | 3086 | 70.3 | 0 |
| Jun | 44111 | 2780 | 3595 | 00.0 | 0 |
| Jul | 46115 | 2985 | 38100 | 00.0 | 0 |
| Aug | 46115 | 2984 | 3799 | 00.0 | 0 |
| Sep | 42107 | 2576 | 3392 | 10.0 | 0 |
| Oct | 3594 | 1966 | 2780 | 110.4 | 0 |
| Nov | 2475 | 1051 | 1763 | 261.0 | 0 |
| Dec | 1763 | 541 | 1152 | 240.9 | 2 |
| Year | 46115 | 337 | 2475 | 1817.1 | 8 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 61% | 41% | 3.2 | 10:13 |
| Feb | 56% | 40% | 4.1 | 10:58 |
| Mar | 46% | 41% | 5.3 | 11:53 |
| Apr | 38% | 43% | 6.1 | 12:57 |
| May | 27% | 35% | 7.1 | 13:50 |
| Jun | 17% | 16% | 8.0 | 14:18 |
| Jul | 16% | 16% | 7.6 | 14:06 |
| Aug | 17% | 16% | 7.1 | 13:21 |
| Sep | 19% | 19% | 6.1 | 12:19 |
| Oct | 27% | 33% | 4.5 | 11:18 |
| Nov | 46% | 39% | 3.4 | 10:25 |
| Dec | 58% | 41% | 2.9 | 9:00 |
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 Al-Musayab is like
The warmest month is July, with an average high of 46 °C115 °F and a low of 29 °C85 °F. The coldest is January, when highs average 16 °C61 °F and lows 3 °C37 °F. Seasons are strongly marked: the warmest month is on average 28.3 °C50.9 °F warmer than the coldest.
It is dry, with about 181 mm7.1 in of precipitation per year. The wettest three-month stretch is January–March, which brings 50% of the annual total. Months with less than 20 mm0.8 in on average: May–October. The wettest month is January (34 mm1.3 in), the driest is June (0 mm0.0 in).
Relative humidity ranges from 16% in July to 61% in January. The clearest skies (lowest average cloud amount, 16%) are typical of July. Average wind speed near the ground ranges from 6 km/h (4 mph) in November to 10 km/h (7 mph) in July. Daylight lasts from about 10.0 hours in December to 14.3 hours in June.
Best time to visit Al-Musayab
Based on these averages, the most comfortable months for sightseeing and outdoor activities are February and March and November: average highs of 19 °C66 °F to 25 °C77 °F with 26 mm1.0 in to 30 mm1.2 in of precipitation per month.
The most challenging month is August, 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 Al-Musayab
- Winter (December–February) — highs 1661 to 19 °C66 °F, lows 337 to 5 °C41 °F, about 29 mm1.1 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Spring (March–May) — highs 2577 to 38 °C100 °F, lows 949 to 21 °C71 °F, about 18 mm0.7 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 44111 to 46 °C115 °F, lows 2780 to 29 °C85 °F, about 0 mm0.0 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
- Autumn (September–November) — highs 2475 to 42 °C107 °F, lows 1051 to 25 °C76 °F, about 13 mm0.5 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Al-Musayab compares
Compared with Karbala, about 31 km to the southwest, Al-Musayab has practically the same average temperature and receives 50% more precipitation (181 mm7.1 in vs 120 mm4.7 in). The difference is largest in July (0.9 °C1.6 °F warmer).
Of the 39 places in Iraq covered by World Climates, Al-Musayab is the 17th warmest by annual mean temperature and the 23rd wettest by annual precipitation. See all of them on the Iraq climate page.
Places in other countries with the most similar temperature and rainfall pattern: Dezful (Iran, BSh), Behbahan (Iran, BSh) and Kazerun (Iran, BSh).
The same NASA POWER grid cell also contains Nahiyat al Iskandariyah (pop. 100,600). Their long-term averages in this dataset are essentially the same as for Al-Musayab, so they do not have separate pages.
Nearby places
- Karbala 31 km · 24 °C75 °F · 120 mm4.7 in
- Al Mahmudiyah 32 km · 24 °C76 °F · 181 mm7.1 in
- Al Hillah 37 km · 24 °C76 °F · 147 mm5.8 in
- Baghdad 63 km · 24 °C75 °F · 201 mm7.9 in
- Al Fallujah 79 km · 23 °C74 °F · 140 mm5.5 in
- Najaf 84 km · 25 °C76 °F · 105 mm4.1 in
- Al Diwaniyah 106 km · 25 °C77 °F · 147 mm5.8 in
- Baqubah 112 km · 24 °C74 °F · 227 mm9.0 in
Frequently asked questions
What is the warmest month in Al-Musayab?
July is the warmest month in Al-Musayab, with an average high of 46 °C (115 °F) and an average low of 29 °C (85 °F).
What is the coldest month in Al-Musayab?
January is the coldest month, with an average high of 16 °C (61 °F) and an average low of 3 °C (37 °F).
When does it rain the most in Al-Musayab?
January is the wettest month with about 34 mm (1.3 in) of precipitation; June is the driest with about 0 mm (0.0 in).
What is the best time to visit Al-Musayab?
Judging by long-term averages, the most comfortable months are February and March and November.
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.