Climate averages 1991–2020
Ras Al Khaimah weather
in September.
A very hot, very dry month: the 4th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a very hot month in Ras Al Khaimah: daytime highs average 37.4°C and nights cool to about 29.4°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 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 20 min on an average September day.
The nearest other city in this atlas is Ajman (63 km away). In September its highs average 38.9°C, 1.5°C warmer than Ras Al Khaimah, with almost no rain (under 1 mm).
Among the 13 cities listed in the United Arab Emirates, Ras Al Khaimah ranks 12th of 13 for the warmest September highs and joint 2nd of 13 for the driest September (rainfall, lowest first). The mean September high of those 13 cities is 39.1°C; Ras Al Khaimah is 1.7°C cooler than that mean.
From September to October, average highs fall by 2.7°C to 34.6°C, and monthly rainfall stays under 1 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
Ras Al Khaimah climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 22.9°C17.1°C | 17.1°C | 28 | 3.7 | 10.711 h |
| February | 24.3°C17.6°C | 17.6°C | 15 | 2.5 | 11.311 h |
| March | 27.4°C19.7°C | 19.7°C | 21 | 2.6 | 12.012 h |
| April | 32.5°C24.3°C | 24.3°C | 6.1 | 0.8 | 12.813 h |
| May | 37.0°C28.3°C | 28.3°C | 0 | 0.0 | 13.413 h |
| June | 38.9°C30.1°C | 30.1°C | 0.8 | 0.1 | 13.714 h |
| July | 39.1°C30.9°C | 30.9°C | 1.6 | 0.1 | 13.614 h |
| August | 38.9°C31.0°C | 31.0°C | 0.1 | 0.0 | 13.013 h |
| September, selected | 37.4°C29.4°C | 29.4°C | 0.2 | 0.1 | 12.312 h |
| October | 34.6°C27.4°C | 27.4°C | 0.5 | 0.1 | 11.612 h |
| November | 29.4°C23.1°C | 23.1°C | 3.6 | 0.9 | 10.911 h |
| December | 25.2°C19.4°C | 19.4°C | 13 | 2.4 | 10.611 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
- Ajman in SeptemberUnited Arab Emirates · 63 kmHigh 38.9°C · Low 27.3°C · 0.1 mm rain
- Sharjah in SeptemberUnited Arab Emirates · 73 kmHigh 39.1°C · Low 27.0°C · 0.3 mm rain
- Reef Al Fujairah City in SeptemberUnited Arab Emirates · 78 kmHigh 37.6°C · Low 27.7°C · 0.6 mm rain
- Fujairah in SeptemberUnited Arab Emirates · 85 kmHigh 35.8°C · Low 27.9°C · 0.7 mm rain
- Warīsān in SeptemberUnited Arab Emirates · 88 kmHigh 40.3°C · Low 26.5°C · 0.3 mm rain
- Dubai in SeptemberUnited Arab Emirates · 102 kmHigh 40.4°C · Low 26.3°C · 0.6 mm rain
- Jebel Ali in SeptemberUnited Arab Emirates · 121 kmHigh 39.4°C · Low 26.7°C · 0.2 mm rain
- Bandar Abbas in SeptemberIran · 159 kmHigh 37.8°C · Low 28.1°C · 1.6 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 Ras Al Khaimah) is explained once on the Ras Al Khaimah year overview and on the Sources, method and limits page.