Bucharest weather in September
September is one of the best months to visit Bucharest: highs of 26°C (78°F) and about 52 mm (2.0 in) of rain on average. Nights average 13°C (56°F) and cloud cover 51% (NASA POWER, 2001–2025 averages). It is the 5th wettest month of the year and the 4th warmest. Compared with August, it is cooler and about as wet; October brings highs of 18°C (65°F) and 56 mm (2.2 in) of rain.
Figures are long-term averages for Bucharest, the largest city in Bucharest. See below for other places.
Is September a good time to visit Bucharest?
best month Weather score 81/100.
Yes. September is one of the best months for weather in Bucharest.
Does it rain a lot in Bucharest in September?
No, it is usually dry: about 52 mm (2.0 in) falls in an average September. It is the 5th wettest month of the year.
How warm is Bucharest in September?
Days average 26°C (78°F) and nights 13°C (56°F).
Bucharest weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 2°C (36°F) | -5°C (22°F) | 44 mm | 74% | least pleasant |
| February | 6°C (42°F) | -4°C (26°F) | 34 mm | 73% | least pleasant |
| March | 12°C (54°F) | 1°C (33°F) | 39 mm | 64% | fair |
| April | 18°C (65°F) | 6°C (42°F) | 43 mm | 59% | best |
| May | 24°C (75°F) | 12°C (53°F) | 65 mm | 58% | best |
| June | 29°C (83°F) | 16°C (61°F) | 79 mm | 53% | best |
| July | 32°C (89°F) | 19°C (65°F) | 67 mm | 41% | best |
| August | 32°C (89°F) | 18°C (65°F) | 46 mm | 36% | best |
| September | 26°C (78°F) | 13°C (56°F) | 52 mm | 51% | best |
| October | 18°C (65°F) | 7°C (44°F) | 56 mm | 58% | best |
| November | 11°C (51°F) | 2°C (35°F) | 42 mm | 70% | fair |
| December | 4°C (39°F) | -3°C (26°F) | 48 mm | 73% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Bucharest in September
Weather can differ a lot within Bucharest: coasts, hills and mountains each have their own climate.