September · Romania
Best time to visit Cluj-Napoca in September Weather, crowds & prices
Weather in Cluj-Napoca in September
Average temperature 18°C, 81 mm of rain, about 11 days with 6+ hours of sunshine and 67% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
7.9/10
Ranked #5 of 12 months
- Avg temp
- 18°C
- Rainfall
- 81 mm
- Humidity
- 67%
- Days with 6h+ sun
- 11
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Cluj-Napoca scores 7.9/10 for sightseeing and cultural travel - an above-average month (#5 of 12). Expect around 18°C, 81 mm of rain, and roughly 11 days with 6+ hours of sunshine this month.
Cluj-Napoca mixes a grand Habsburg square with Romania's liveliest student scene and quick trips into Transylvania.
September holds up well in Cluj-Napoca — 5th best month
Temperatures hover around 18°C (64°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 81 mm of rain this month — a flexible day or two helps — with about 11 days with 6+ hours of sunshine and 12.3 hours of daylight to work around it.
That is 7.9/10 on the same scale — 5th of 12 months, versus 9.2/10 for the best month here.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Budget for mid-season pricing, and crowds are moderate.
Frequently asked
- What is the weather like in Cluj-Napoca in September?
- In September, Cluj-Napoca averages 18°C, 81 mm of rain, and about 11 days with 6+ hours of sunshine. Its climate-comfort score is 7.9/10.
- Is September a good time to visit Cluj-Napoca?
- September earns a 7.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Cluj-Napoca in September?
- Expect about 81 mm of rain in September. Average humidity is 67% and there are about 11 days with 6+ hours of sunshine.
Curated in Cluj-Napoca
Tickets & experiences
Things to do in Cluj-Napoca
Cluj-Napoca, Romania. Live activities and tours from GetYourGuide, matched to this destination.