Nizwa weather in September
September in Nizwa: sweltering, dry — not the time — 41°C afternoons.
Updated September 2026 · climate normals from ERA5 reanalysis
#8 of 12 months in Nizwa · #1292 of 1413 destinations to visit in September · comfort 47/100 (tier F)
- Days
- 40°C
- Nights
- 25°C
- Wet days
- 1
- Sun
- 11.1 h
- Humidity
- 38%
- Daylight
- 12 h
Traveller notes on Nizwa in September
Other months in Nizwa
Forum posters are direct that July is really hot in Nizwa, with one poster describing conditions as dangerously and uncomfortably hot given much sun exposure - even at night, temperatures only 'cool' into the mid-30sC. Posters cite daytime highs around 38C in Nizwa itself, with the nearby desert running hotter still, sometimes above 45C. Posters consistently recommend Jebel Akhdar as a real escape valve, sitting some 15-20C cooler than Nizwa at its summit - a genuinely different climate just a short drive up. Posters generally suggest winter, spring or autumn instead for anyone wanting to properly enjoy the region, treating a July visit to Nizwa itself as something to endure rather than savor unless paired with time up the mountain.
Nizwa's forum calls January pleasantly warm, and genuinely a touch warmer inland than on the Omani coast — regulars put the interior a couple of degrees above the coast's roughly 25°C. December and January are the busiest months to visit, so a slightly quieter trip is easier to find in February.
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Nizwa climate normals — September
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Nizwa in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 3 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Nizwa's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherNizwa's weather peaks December–February, best around January.
Best weatherFair weatherToughest weather
What's on in Nizwa in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
The interior summer
1 Jun – 10 Sep · usuallyExtreme heatInterior Oman is hotter than the coast and drier with it; forts open early and empty by ten. The mountain above town runs several degrees cooler, which is where everyone goes.
- Nature
Pomegranates on Jebel Akhdar
1 Sep – 20 Oct · usuallyHarvestThe mountain terraces come good in early autumn: pomegranates, walnuts and the last apricots, sold at the roadside on the way up. Walking weather returns at the same time.
Nearby, and something's on
Within 300 km of Nizwa — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Nizwa?
Nizwa in September — FAQ
- Is September a good time to visit Nizwa?
- September in Nizwa: sweltering, dry — not the time — 41°C afternoons. It ranks #8 of 12 months for Nizwa on SeasonMap's comfort score (47/100).
- What is the weather like in Nizwa in September?
- In September, Nizwa averages a daily high of 39.6°C and a low of 25.3°C, with about 2.8 mm of rain over roughly 0.6 rainy days.
- What is the air quality in Nizwa in September?
- Nizwa has a mean US Air Quality Index of about 78 in September.
Within 300 km: Muscat's Turtle nesting at Ras al-Jinz around 15 May – 30 Sep.