Climate averages 1991–2020
Umm Qaşr weather
in September.
A very hot, very dry month: the 4th warmest and the joint 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a very hot month in Umm Qaşr: daytime highs average 42.7°C and nights cool to about 27.4°C. By daytime temperature it is the 4th warmest of the 12 months.
Rain is very rare: less than 1 mm falls in a typical September (the joint 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 22 min on an average September day.
The nearest other city in this atlas is Az Zubayr (45 km away). In September its highs average 42.9°C, about as warm as Umm Qaşr, with almost no rain (under 1 mm).
Among the 59 cities listed in Iraq, Umm Qaşr ranks joint 6th of 59 for the warmest September highs and joint 2nd of 59 for the driest September (rainfall, lowest first). The mean September high of those 59 cities is 39.2°C; Umm Qaşr is 3.5°C warmer than that mean.
From September to October, average highs fall by 6.6°C to 36.1°C, and monthly rainfall rises from under 1 mm to 3.8 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Umm Qaşr climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.9°C7.8°C | 7.8°C | 35 | 4.8 | 10.410 h |
| February | 20.9°C9.4°C | 9.4°C | 16 | 3.3 | 11.111 h |
| March | 26.3°C13.5°C | 13.5°C | 20 | 3.1 | 12.012 h |
| April | 33.0°C19.4°C | 19.4°C | 7.5 | 1.4 | 12.913 h |
| May | 40.1°C25.5°C | 25.5°C | 2.8 | 0.5 | 13.614 h |
| June | 44.7°C29.9°C | 29.9°C | 0.1 | 0.0 | 14.014 h |
| July | 46.3°C31.9°C | 31.9°C | 0 | 0.0 | 13.914 h |
| August | 46.3°C31.3°C | 31.3°C | 0.1 | 0.0 | 13.213 h |
| September, selected | 42.7°C27.4°C | 27.4°C | 0.1 | 0.0 | 12.412 h |
| October | 36.1°C21.9°C | 21.9°C | 3.8 | 0.7 | 11.511 h |
| November | 25.9°C14.9°C | 14.9°C | 33 | 3.5 | 10.711 h |
| December | 19.7°C9.5°C | 9.5°C | 30 | 4.6 | 10.310 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Az Zubayr in SeptemberIraq · 45 kmHigh 42.9°C · Low 27.4°C · 0.4 mm rain
- Abū al-Kahṣīb in SeptemberIraq · 45 kmHigh 42.9°C · Low 27.5°C · 0.5 mm rain
- Abadan in SeptemberIran · 50 kmHigh 42.5°C · Low 27.4°C · 0.1 mm rain
- Khorramshahr in SeptemberIran · 52 kmHigh 42.8°C · Low 27.5°C · 0.3 mm rain
- Al Fāw in SeptemberIraq · 54 kmHigh 38.1°C · Low 29.3°C · 0 mm rain
- Basrah in SeptemberIraq · 54 kmHigh 43.0°C · Low 27.6°C · 0.4 mm rain
- Kuwait City in SeptemberKuwait · 75 kmHigh 40.0°C · Low 28.2°C · 0.1 mm rain
- Ḩawallī in SeptemberKuwait · 79 kmHigh 39.9°C · Low 28.1°C · 0.1 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Umm Qaşr) is explained once on the Umm Qaşr year overview and on the Sources, method and limits page.