September · Turkey
Best time to visit Blue Mosque in September Weather, crowds & prices
Weather in Blue Mosque in September
Average temperature 23°C, 34 mm of rain, about 17 days with 6+ hours of sunshine and 68% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
8.9/10
Ranked #3 of 12 months
- Avg temp
- 23°C
- Rainfall
- 34 mm
- Humidity
- 68%
- Days with 6h+ sun
- 17
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Blue Mosque scores 8.9/10 for sightseeing and cultural travel - one of the top 12-month picks (#3). Expect around 23°C, 34 mm of rain, and roughly 17 days with 6+ hours of sunshine this month.
Sultan Ahmed Mosque, better known as the Blue Mosque, faces Hagia Sophia across Sultanahmet square in Istanbul.
September in Blue Mosque — one of the year's strongest windows (3rd)
At 23°C (73°F) this is comfortable city weather in September, with sightseeing easiest before lunch and after the afternoon peak.
With around 34 mm of rain, any showers tend to pass through rather than settle in; about 17 days with 6+ hours of sunshine and 12.3 hours of daylight fill the rest.
On our climate-comfort scale this is one of the strongest months of the year for Blue Mosque at 8.9/10 (3rd of 12), just behind May at 9.6/10.
Pack light clothing, a hat and real sun protection.
Expect mid-season pricing, and crowds are moderate.
Frequently asked
- What is the weather like in Blue Mosque in September?
- In September, Blue Mosque averages 23°C, 34 mm of rain, and about 17 days with 6+ hours of sunshine. Its climate-comfort score is 8.9/10.
- Is September a good time to visit Blue Mosque?
- September earns a 8.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Blue Mosque in September?
- Expect about 34 mm of rain in September. Average humidity is 68% and there are about 17 days with 6+ hours of sunshine.
Curated in Blue Mosque
Tickets & experiences
Things to do in Blue Mosque
Blue Mosque, Turkey. Live activities and tours from GetYourGuide, matched to this destination.