Romania in September: where is it warmest?
In September, Bucharest is the warmest place with 24 °C by day, Brașov the coolest with 19 °C. 14 of 14 destinations have good holiday weather.
All destinations in September, warmest first
Long-term averages for the month: daytime high, sea, sunshine and rainy days.
| Place | Score | Air | Sea | Sun | Rain days |
|---|---|---|---|---|---|
| Bucharest | 89 | 24° | – | 7 h | 6 |
| Craiova | 89 | 24° | – | 7 h | 6 |
| Constanța | 91 | 23° | 22° | 8 h | 6 |
| Arad | 84 | 23° | – | 7 h | 8 |
| Timișoara | 82 | 23° | – | 7 h | 9 |
| Iași | 85 | 22° | – | 7 h | 7 |
| Oradea | 83 | 22° | – | 7 h | 9 |
| Târgoviște | 85 | 21° | – | 7 h | 7 |
| Sighișoara | 80 | 21° | – | 6 h | 9 |
| Târgu Mureș | 80 | 21° | – | 6 h | 9 |
| Alba Iulia | 80 | 21° | – | 6 h | 9 |
| Cluj-Napoca | 79 | 20° | – | 6 h | 10 |
| Sibiu | 78 | 20° | – | 6 h | 9 |
| Brașov | 79 | 19° | – | 6 h | 9 |
Romania in September: quick answers
Romania in September: where is it warmest?
The warmest places in September are Bucharest (24 °C), Craiova (24 °C) and Constanța (23 °C).
Romania in September: where is the sea warmest?
The sea is warmest at Constanța (22 °C).
Romania in September: where is the weather best?
The best holiday weather in September – warm, sunny and dry – is in Constanța, Bucharest and Craiova.
Romania month by month
Romania: weather & best time to visit
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences