Nizwa weather in September 2026

Q: How hot is it in Nizwa in September?

Daytime temperatures usually reach 36°C in Nizwa in September with extreme heat and humidity, falling to 26°C at night.

Q: How sunny is it in Nizwa in September?

There are normally 10 hours of bright sunshine each day in Nizwa in September - that's 79% of daylight hours.

Q: How warm is the sea around Nizwa in September?

The average sea temperature around Nizwa in September is 30°C.

Q: Does it ever rain in Nizwa in September?

There are usually no days with some rain in Nizwa in September and the average monthly rainfall is 0mm.

Expect daytime maximum temperatures of 35°C in Nizwa, Oman in September and very high heat and humidity based on long-term weather averages. There are 10 hours of sunshine per day on average.

35
35°C max day temperature
10
10 hours of sunshine per day
1
1 day with some rainfall
23
23°C min night temperature
12
12 hours of daylight per day
VH
Very High heat & humidity
1
1 mm of monthly rainfall
11
11+ (Extreme) UV index

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The September weather guide for Oman (Nizwa) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)