Al Hillah climate
Al Hillah (Iraq) has a hot desert climate (Köppen BWh). The average temperature over the year is 24 °C76 °F, and about 147 mm5.8 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Al Hillah climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 1661 | 338 | 1049 | 281.1 | 3 |
| Feb | 1967 | 541 | 1254 | 230.9 | 2 |
| Mar | 2577 | 1050 | 1864 | 200.8 | 0 |
| Apr | 3188 | 1560 | 2374 | 180.7 | 0 |
| May | 38101 | 2272 | 3086 | 60.2 | 0 |
| Jun | 44111 | 2781 | 3596 | 00.0 | 0 |
| Jul | 46115 | 3085 | 38100 | 00.0 | 0 |
| Aug | 46115 | 2984 | 38100 | 00.0 | 0 |
| Sep | 42107 | 2577 | 3392 | 10.0 | 0 |
| Oct | 3595 | 1967 | 2781 | 100.4 | 0 |
| Nov | 2475 | 1151 | 1763 | 230.9 | 0 |
| Dec | 1864 | 541 | 1152 | 190.7 | 2 |
| Year | 46115 | 338 | 2476 | 1475.8 | 7 |
“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 | 59% | 41% | 3.2 | 10:14 |
| Feb | 54% | 40% | 4.1 | 10:59 |
| Mar | 43% | 41% | 5.3 | 11:54 |
| Apr | 36% | 43% | 6.1 | 12:56 |
| May | 25% | 35% | 7.1 | 13:49 |
| Jun | 17% | 16% | 8.0 | 14:16 |
| Jul | 16% | 16% | 7.6 | 14:05 |
| Aug | 17% | 16% | 7.1 | 13:20 |
| Sep | 19% | 19% | 6.1 | 12:19 |
| Oct | 27% | 33% | 4.5 | 11:19 |
| Nov | 45% | 39% | 3.4 | 10:27 |
| Dec | 57% | 41% | 2.9 | 10:02 |
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 Hillah is like
The warmest month is July, with an average high of 46 °C115 °F and a low of 30 °C85 °F. The coldest is January, when highs average 16 °C61 °F and lows 3 °C38 °F. Seasons are strongly marked: the warmest month is on average 28.1 °C50.6 °F warmer than the coldest.
It is very dry, with only 147 mm5.8 in of precipitation in an average year. The wettest three-month stretch is January–March, which brings 48% of the annual total. Months with less than 20 mm0.8 in on average: March–October and December. The wettest month is January (28 mm1.1 in), the driest is July (0 mm0.0 in).
Relative humidity ranges from 16% in July to 59% in January. The clearest skies (lowest average cloud amount, 16%) are typical of July. Average wind speed near the ground ranges from 7 km/h (4 mph) in November to 13 km/h (8 mph) in July. Daylight lasts from about 10.0 hours in December to 14.3 hours in June.
Best time to visit Al Hillah
Based on these averages, the most comfortable months for sightseeing and outdoor activities are February and March and November: average highs of 19 °C67 °F to 25 °C77 °F with 20 mm0.8 in to 23 mm0.9 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 Hillah
- Winter (December–February) — highs 1661 to 19 °C67 °F, lows 338 to 5 °C41 °F, about 23 mm0.9 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 °C101 °F, lows 1050 to 22 °C72 °F, about 15 mm0.6 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 2781 to 30 °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 1151 to 25 °C77 °F, about 11 mm0.4 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water.
How Al Hillah compares
Compared with Karbala, about 41 km to the northwest, Al Hillah is on average 0.5 °C0.9 °F warmer and receives 22% more precipitation (147 mm5.8 in vs 120 mm4.7 in). The difference is largest in June (1 °C1.8 °F warmer).
Of the 39 places in Iraq covered by World Climates, Al Hillah is the 15th warmest by annual mean temperature and the 25th 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), Khorramshahr (Iran, BWh) and Behbahan (Iran, BSh).
The same NASA POWER grid cell also contains Al Hindiyah (pop. 139,578) and Abu Gharaq (pop. 108,212). Their long-term averages in this dataset are essentially the same as for Al Hillah, so they do not have separate pages.
Nearby places
- Al-Musayab 37 km · 24 °C75 °F · 181 mm7.1 in
- Karbala 41 km · 24 °C75 °F · 120 mm4.7 in
- Najaf 49 km · 25 °C76 °F · 105 mm4.1 in
- Al Mahmudiyah 67 km · 24 °C76 °F · 181 mm7.1 in
- Al Diwaniyah 71 km · 25 °C77 °F · 147 mm5.8 in
- Baghdad 98 km · 24 °C75 °F · 201 mm7.9 in
- Al Fallujah 115 km · 23 °C74 °F · 140 mm5.5 in
- Al-Kut 131 km · 25 °C77 °F · 238 mm9.4 in
Frequently asked questions
What is the warmest month in Al Hillah?
July is the warmest month in Al Hillah, with an average high of 46 °C (115 °F) and an average low of 30 °C (85 °F).
What is the coldest month in Al Hillah?
January is the coldest month, with an average high of 16 °C (61 °F) and an average low of 3 °C (38 °F).
When does it rain the most in Al Hillah?
January is the wettest month with about 28 mm (1.1 in) of precipitation; July is the driest with about 0 mm (0.0 in).
What is the best time to visit Al Hillah?
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.