Very hot in Sep
37°C average high
avg high · 27° at night
25°C+ on almost every day · often 35°C+
Oman
Muscat weather in September
Is it warm? Yes. September in Muscat is very hot: afternoons average 36°C and nights 27°C. Most days (80%) peak between 34°C and 38°C.
Very hot · average high
36°C
25°C or more on almost every day. 35°C or more on about six in ten days.
- Average low27°overnight
- Sea31°average, 2023–2025
- Rainy days00 mm in the month
- SkyMostly clear16% cloud · 79% clear days
How warm it really gets
Every September afternoon from 2011–2025: 450 days. Most (80%) peaked between 34° and 38°.
September, year by year
The average September high in each year. The warmest, 2017, averaged 37°C; the coolest, 2016, 34°C.
Compared with home
Average September highs. Rain is rare: less than one wet day in a typical month.
- Muscat36°
- London19°
- Manchester17°
- Dublin17°
- Cork17°
- Belfast16°
- Glasgow16°
Warmer in September, not much further
Flying times are estimates from Dublin; Muscat is about 8h 15m.
Very hot in Sep
37°C average high
avg high · 24° at night
25°C+ on almost every day · often 35°C+
Very hot in Sep
39°C average high
avg high · 24° at night
25°C+ on almost every day · often 35°C+
Air: ERA5 reanalysis via Open-Meteo, 2011–2025. Sea: Copernicus Marine analysis via Open-Meteo, 2023–2025. Rainy day = 2 mm or more. Clear day = average cloud cover of 30% or less. These are averages of past weather, not a forecast. Methodology