Monthly climate guide

Belgrade weather in September

September in Belgrade is typically warm, with average daytime highs around 26°C (79°F) and night-time lows near 14°C (57°F). The month usually brings about 51 mm of rain (some rain) and is a mix of sun and cloud. Daytime highs are 5°C cooler than August and 7°C warmer than October.

What stands out in September

September brings early autumn to Belgrade.
It cools down fast from here: October is about 7°C cooler.
Expect a big gap between day and night — about 12°C.

Avg high

26°C

79°F

Avg low

14°C

57°F

Rainfall

51 mm

some rain

Humidity

58%

relative

Sky

52%

cloud · a mix of sun and cloud

Live Belgrade forecast Where else to go in September

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Belgrade weather by month

Low → high °C Rain (mm)

Show the monthly averages as a table

Average monthly climate in Belgrade
Month	Avg high	Avg low	Rain	Humidity	Cloud cover
January	4°C / 40°F	-3°C / 26°F	49 mm	88%	77%
February	7°C / 45°F	-2°C / 29°F	47 mm	83%	74%
March	13°C / 56°F	2°C / 36°F	52 mm	75%	64%
April	19°C / 66°F	7°C / 44°F	46 mm	69%	60%
May	23°C / 73°F	11°C / 53°F	97 mm	70%	63%
June	28°C / 82°F	16°C / 61°F	78 mm	65%	52%
July	31°C / 87°F	18°C / 65°F	66 mm	55%	41%
August	32°C / 89°F	18°C / 65°F	46 mm	52%	33%
September	26°C / 79°F	14°C / 57°F	51 mm	58%	52%
October	20°C / 67°F	8°C / 46°F	50 mm	69%	56%
November	13°C / 55°F	3°C / 38°F	35 mm	81%	68%
December	6°C / 43°F	-1°C / 30°F	41 mm	87%	74%

What to pack for September

T-shirts plus a light layer for the evening
Comfortable trainers or sandals for long walks
An extra layer — evenings are noticeably cooler than afternoons
A small travel umbrella, just in case

Full season-by-season packing guide →

Is September a good time to visit Belgrade?

Compare the months in the chart above to find your ideal window.

Best time to visit Belgrade →

Other Serbia cities in September

Novi Sad

26° / 14°C · 50 mm

Niš

25° / 12°C · 43 mm

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Belgrade weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/serbia/belgrade/september

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Belgrade in September: quick answers

Is September a good time to visit Belgrade?

Yes. September is one of the best months for Belgrade, with highs around 26°C and about 51 mm of rain.

How warm is Belgrade in September?

Average highs are about 26°C (79°F) and average lows about 14°C (57°F), based on 10 years of daily data.

Does it rain a lot in Belgrade in September?

Belgrade typically gets around 51 mm of rain in September — some rain.

Figures are long-term averages for the area around Belgrade (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.