Muscat weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Fair
Best time to visit: November – March
What is the weather like in Muscat in September?
In September, Muscat is very hot: daytime highs average 35 °C, and even at night it stays warm at around 27 °C. The sea averages 30.3 °C – almost as warm as a bath. With around 10 hours of sunshine a day, there is plenty of sun. It hardly ever rains. On about 30 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is a so-so month for a holiday in Muscat.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 50 | 52 | 62 |
| Day | 35° | 35° | 33° |
| Night | 28° | 27° | 25° |
| Sea | 31° | 30° | 30° |
| Sun | 10 h | 10 h | 10 h |
| Rain days | 0 | 0 | 1 |
More details for September
- Daylight
- 12 h 19 min05:52 – 18:11
- UV index
- 10 · very highclear sky, noon (estimate)
- Muggy days
- 27 daysdew point 18 °C or more
- Wind
- 15 km/haverage daily peak
- Cloud cover
- 11 %on average
- Hot days
- 30 days30 °C or more
- Time zone
- UTC+4Asia/Muscat
How the score comes together
- Temperatureweight 50 %4 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
Muscat in September: quick answers
Is Muscat hot in September?
Yes. In September, Muscat is very hot: daytime highs average 35 °C and nights stay around 27 °C. On about 30 days the thermometer climbs to 30 °C or more.
Can you swim in Muscat in September?
Yes. In September the sea averages 30.3 °C – almost as warm as a bath.
Does it rain much in Muscat in September?
It hardly ever rains.
Muscat month by month
The whole year in MuscatAll destinations: Oman
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)