Monthly Climate
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Best time to visit Cluj-Napoca

September is the best time to visit Cluj-Napoca for general sightseeing, with average highs of 20 °C and about 10 wet days. The comfortable season runs roughly May to September.

It depends what you are going for

One month rarely wins on everything. These are the best months on each measure taken on its own.

If you want Best month On that measure
Sightseeing and walking September comfort 85/100
The least cloud August 42 % average cloud cover
The least rain January 34 mm
Warmth August 25 °C
Cooler weather January 1.7 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days
1 September 85 20 °C 10
2 August 84 25 °C 12
3 June 81 23 °C 15
4 July 80 25 °C 15
5 May 76 20 °C 15
6 October 64 15 °C 8
7 April 62 15 °C 12
8 March 40 9.2 °C 10
9 November 39 8.5 °C 8
10 January 30 1.7 °C 8
11 February 30 4.2 °C 9
12 December 29 2.8 °C 9

When to think twice

December scores lowest with about 9 wet days and highs near 2.8 °C. That does not make it a bad month — it depends entirely on what you are travelling for. The numbers are all here; the judgement is yours.

The full year

Month Avg high Rainfall Cloud
January 1.7 °C 34 mm 65 %
February 4.2 °C 35 mm 66 %
March 9.2 °C 49 mm 61 %
April 15.1 °C 67 mm 58 %
May 19.7 °C 87 mm 58 %
June 23.1 °C 106 mm 54 %
July 24.8 °C 101 mm 48 %
August 25.0 °C 82 mm 42 %
September 20.1 °C 71 mm 52 %
October 14.7 °C 56 mm 55 %
November 8.5 °C 42 mm 62 %
December 2.8 °C 44 mm 66 %

Data sources and method

Normal period
1991–2020
Dataset version
era5-1991-2020-scores1.1
Last processed

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: comfort score, beach score, season boundaries. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.