Climate averages 1991–2020
Diyarb Najm weather
in September.
A very hot, very dry month: the 4th warmest and the joint 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a very hot month in Diyarb Najm: daytime highs average 34.3°C and nights cool to about 20.7°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 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 23 min on an average September day.
The nearest other city in this atlas is As Sinbillāwayn (14 km away). In September its highs average 34.1°C, about as warm as Diyarb Najm, with almost no rain (under 1 mm).
Among the 107 cities listed in Egypt, Diyarb Najm ranks joint 64th of 107 for the warmest September highs and joint 48th of 107 for the driest September (rainfall, lowest first). The mean September high of those 107 cities is 34.6°C; Diyarb Najm is 0.2°C cooler than that mean.
From September to October, average highs fall by 3.4°C to 30.9°C, and monthly rainfall rises from under 1 mm to 2.5 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
Diyarb Najm climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.3°C8.8°C | 8.8°C | 6.0 | 1.7 | 10.410 h |
| February | 20.6°C9.0°C | 9.0°C | 6.8 | 2.2 | 11.111 h |
| March | 24.1°C10.7°C | 10.7°C | 5.5 | 1.1 | 12.012 h |
| April | 28.4°C13.3°C | 13.3°C | 2.4 | 0.6 | 12.913 h |
| May | 32.5°C16.6°C | 16.6°C | 0.9 | 0.3 | 13.714 h |
| June | 35.5°C19.6°C | 19.6°C | 0.1 | 0.0 | 14.114 h |
| July | 36.0°C21.4°C | 21.4°C | 0 | 0.0 | 13.914 h |
| August | 35.8°C21.9°C | 21.9°C | 0 | 0.0 | 13.313 h |
| September, selected | 34.3°C20.7°C | 20.7°C | 0.1 | 0.0 | 12.412 h |
| October | 30.9°C18.3°C | 18.3°C | 2.5 | 0.5 | 11.411 h |
| November | 25.6°C14.6°C | 14.6°C | 4.0 | 1.0 | 10.611 h |
| December | 21.0°C10.8°C | 10.8°C | 3.6 | 1.0 | 10.210 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
- As Sinbillāwayn in SeptemberEgypt · 14 kmHigh 34.1°C · Low 20.6°C · 0.2 mm rain
- Hihyā in SeptemberEgypt · 17 kmHigh 34.4°C · Low 20.7°C · 0.1 mm rain
- Mīt Ghamr in SeptemberEgypt · 18 kmHigh 34.5°C · Low 20.7°C · 0.2 mm rain
- Zefta in SeptemberEgypt · 19 kmHigh 34.4°C · Low 20.6°C · 0.2 mm rain
- Zagazig in SeptemberEgypt · 19 kmHigh 34.5°C · Low 20.6°C · 0.1 mm rain
- Abū Kabīr in SeptemberEgypt · 22 kmHigh 34.3°C · Low 20.6°C · 0.1 mm rain
- Minyā al Qamḩ in SeptemberEgypt · 28 kmHigh 34.7°C · Low 20.5°C · 0.1 mm rain
- Al Mansurah in SeptemberEgypt · 32 kmHigh 34.1°C · Low 20.6°C · 0.2 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 Diyarb Najm) is explained once on the Diyarb Najm year overview and on the Sources, method and limits page.
Hihyā lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.