Climate averages 1991–2020
Wādī as Sīr weather
in September.
A hot, very dry month: the 4th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Wādī as Sīr: daytime highs average 30.7°C and nights cool to about 18.4°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 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 24 min on an average September day.
The nearest other city in this atlas is Marj Al Hamam (6 km away). In September its highs average 28.9°C, 1.8°C cooler than Wādī as Sīr, with almost no rain (under 1 mm).
Among the 12 cities listed in Jordan, Wādī as Sīr ranks 8th of 12 for the warmest September highs and joint 3rd of 12 for the driest September (rainfall, lowest first). The mean September high of those 12 cities is 31.2°C; Wādī as Sīr is 0.5°C cooler than that mean.
From September to October, average highs fall by 4.4°C to 26.3°C, and monthly rainfall rises from under 1 mm to 4.9 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
Wādī as Sīr climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 12.4°C3.8°C | 3.8°C | 48 | 7.5 | 10.310 h |
| February | 13.6°C4.4°C | 4.4°C | 45 | 7.5 | 11.011 h |
| March | 17.5°C6.9°C | 6.9°C | 30 | 5.7 | 12.012 h |
| April | 22.7°C10.3°C | 10.3°C | 11 | 2.8 | 12.913 h |
| May | 27.7°C14.7°C | 14.7°C | 4.0 | 0.9 | 13.814 h |
| June | 31.0°C17.8°C | 17.8°C | 0.3 | 0.1 | 14.214 h |
| July | 32.9°C19.8°C | 19.8°C | 0 | 0.0 | 14.014 h |
| August | 33.0°C20.2°C | 20.2°C | 0 | 0.0 | 13.313 h |
| September, selected | 30.7°C18.4°C | 18.4°C | 0.6 | 0.2 | 12.412 h |
| October | 26.3°C15.0°C | 15.0°C | 4.9 | 1.3 | 11.411 h |
| November | 19.5°C9.4°C | 9.4°C | 15 | 3.4 | 10.611 h |
| December | 14.5°C5.4°C | 5.4°C | 29 | 5.3 | 10.110 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
- Marj Al Hamam in SeptemberJordan · 6 kmHigh 28.9°C · Low 17.2°C · 0.6 mm rain
- Amman in SeptemberJordan · 12 kmHigh 31.2°C · Low 19.0°C · 1.1 mm rain
- As Salţ in SeptemberJordan · 13 kmHigh 29.2°C · Low 17.0°C · 0.6 mm rain
- Khuraybat as Sūq in SeptemberJordan · 13 kmHigh 30.2°C · Low 18.3°C · 1.1 mm rain
- Russeifa in SeptemberJordan · 23 kmHigh 32.2°C · Low 19.3°C · 1.1 mm rain
- Mādabā in SeptemberJordan · 27 kmHigh 29.3°C · Low 18.6°C · 0.4 mm rain
- Zarqa in SeptemberJordan · 29 kmHigh 31.7°C · Low 17.3°C · 1.1 mm rain
- Jerusalem in SeptemberIsrael · 60 kmHigh 30.2°C · Low 17.8°C · 2.5 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 Wādī as Sīr) is explained once on the Wādī as Sīr year overview and on the Sources, method and limits page.
As Salţ and Marj Al Hamam lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.