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Weather in Bucharest in September 2025

Weather in Bucharest in September 2025, day by day: highs, lows, rainfall and departure from the historical average.

Month summary

max
25.8°
Monthly normal: 25.3°
min
15.1°
Monthly normal: 14.3°
Warmest day
35.4°
3 sep
Coldest day
9°
28 sep
Monthly rainfall
21.3 mm
Monthly normal: 33.3 mm
Days with rain
5
Omstandighedenmaxmin Departure from averageregenWindstoten tot
1 sep Onbewolkt 28.3°17° -0.5° 0 mm30 km/h
2 sep Overwegend onbewolkt 33.2°18.8° +4° 0 mm27 km/h
3 sep Overwegend onbewolkt 35.4°20.8° +6.5° 0 mm40 km/h
4 sep Bewolkt 32.3°20.2° +6.7° 0 mm38 km/h
5 sep Bewolkt 30.6°17.8° +4.5° 0 mm35 km/h
6 sep Bewolkt 29.8°16.8° +3.7° 0 mm24 km/h
7 sep Bewolkt 29.7°16.1° +2.4° 0 mm30 km/h
8 sep Bewolkt 29.3°17.2° +2.2° 0 mm26 km/h
9 sep Bewolkt 30.5°17.6° +2.5° 0 mm23 km/h
10 sep Bewolkt 29.4°18.5° +1.8° 0 mm41 km/h
11 sep Zware motregen 27.9°18.7° +1° 2 mm36 km/h
12 sep Lichte regen 26.9°18.7° -0.1° 4.1 mm26 km/h
13 sep Lichte motregen 25.2°17.8° -2.1° 0.2 mm32 km/h
14 sep Bewolkt 24.3°14.9° -2.7° 0 mm32 km/h
15 sep Bewolkt 26.5°13.9° -0.6° 0 mm25 km/h
16 sep Onbewolkt 27.2°15.9° 0° 0 mm20 km/h
17 sep Matige regen 20.1°14.6° -6.5° 8.4 mm24 km/h
18 sep Half bewolkt 22.2°11° -2.9° 0 mm27 km/h
19 sep Bewolkt 23.7°9.9° +0.5° 0 mm26 km/h
20 sep Bewolkt 26.8°15.3° +4.3° 0 mm21 km/h
21 sep Overwegend onbewolkt 27.8°14.5° +5.8° 0 mm23 km/h
22 sep Onbewolkt 26°13.6° +3.5° 0 mm31 km/h
23 sep Onbewolkt 26.2°12.7° +3.3° 0 mm23 km/h
24 sep Overwegend onbewolkt 25.6°12.8° +1.4° 0 mm37 km/h
25 sep Bewolkt 19.5°13.4° -3.3° 0 mm49 km/h
26 sep Lichte motregen 17°12.8° -5.9° 0.2 mm43 km/h
27 sep Bewolkt 18.9°11.8° -3.4° 0 mm32 km/h
28 sep Bewolkt 19.6°9° -3.3° 0 mm23 km/h
29 sep Lichte motregen 16.5°11.3° -5.4° 4.3 mm23 km/h
30 sep Zware motregen 18.2°10.1° -3.2° 2.1 mm21 km/h

ERA5 reanalysis data (Copernicus/ECMWF) via Open-Meteo, hourly resolution since 1940. For analysis: download the full series as CSV or query the API.