Climate averages 1991–2020
Sumayl weather
in August.
A very hot, very dry month: the 2nd warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a very hot month in Sumayl: daytime highs average 39.2°C and nights cool to about 23.0°C. By daytime temperature it is the 2nd warmest of the 12 months.
Rain is very rare: less than 1 mm falls in a typical August (the driest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 34 min on an average August day.
The nearest other city in this atlas is Simele (0 km away). In August its highs average 39.1°C, about as warm as Sumayl, with almost no rain (under 1 mm).
Among the 59 cities listed in Iraq, Sumayl ranks joint 50th of 59 for the warmest August highs and joint 41st of 59 for the driest August (rainfall, lowest first). The mean August high of those 59 cities is 43.4°C; Sumayl is 4.2°C cooler than that mean.
From August to September, average highs fall by 5.0°C to 34.2°C, and monthly rainfall rises from under 1 mm to 1.0 mm.
The annual picture
August 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
Sumayl climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 10.1°C0.6°C | 0.6°C | 83 | 10.1 | 9.910 h |
| February | 11.9°C1.3°C | 1.3°C | 75 | 10.0 | 10.811 h |
| March | 16.3°C4.6°C | 4.6°C | 82 | 10.1 | 11.912 h |
| April | 21.9°C9.2°C | 9.2°C | 58 | 8.6 | 13.113 h |
| May | 28.4°C14.3°C | 14.3°C | 25 | 4.2 | 14.114 h |
| June | 35.5°C19.7°C | 19.7°C | 1.2 | 0.4 | 14.615 h |
| July | 39.7°C23.4°C | 23.4°C | 0.3 | 0.1 | 14.414 h |
| August, selected | 39.2°C23.0°C | 23.0°C | 0.2 | 0.0 | 13.614 h |
| September | 34.2°C18.6°C | 18.6°C | 1.0 | 0.3 | 12.512 h |
| October | 27.1°C13.7°C | 13.7°C | 24 | 3.3 | 11.311 h |
| November | 17.8°C6.8°C | 6.8°C | 52 | 6.2 | 10.210 h |
| December | 12.0°C2.4°C | 2.4°C | 75 | 8.8 | 9.710 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
August in nearby cities
- Simele in AugustIraq · 0 kmHigh 39.1°C · Low 22.7°C · 0.2 mm rain
- Dihok in AugustIraq · 12 kmHigh 39.0°C · Low 22.9°C · 0.4 mm rain
- Sīnah in AugustIraq · 18 kmHigh 38.9°C · Low 22.2°C · 0.4 mm rain
- Zaxo in AugustIraq · 35 kmHigh 38.9°C · Low 22.0°C · 0.5 mm rain
- Silopi in AugustTurkey · 55 kmHigh 38.5°C · Low 21.1°C · 0.3 mm rain
- Al Mawşil al Jadīdah in AugustIraq · 63 kmHigh 42.2°C · Low 26.9°C · 0.1 mm rain
- Cizre in AugustTurkey · 79 kmHigh 39.7°C · Low 22.9°C · 0.2 mm rain
- 'Ākra in AugustIraq · 93 kmHigh 38.8°C · Low 23.0°C · 0.3 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 Sumayl) is explained once on the Sumayl year overview and on the Sources, method and limits page.
Simele lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.