Monthly Climate
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Best time to visit Constanţa

September is the best time to visit Constanţa for general sightseeing, with average highs of 22 °C and about 6 wet days. The comfortable season runs roughly May to June. The sea stays above 20 °C from June 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 94/100
A beach holiday August sea 25 °C
The least cloud August 28 % average cloud cover
The least rain February 33 mm
Warmth August 27 °C
Cooler weather January 4.7 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 September 94 22 °C 6 77
2 May 87 20 °C 8 40
3 June 87 24 °C 9 73
4 August 85 27 °C 5 95
5 July 83 27 °C 6 92
6 October 80 17 °C 6 42
7 April 65 14 °C 8 16
8 November 57 11 °C 6 18
9 March 46 9.7 °C 8 15
10 February 34 6.3 °C 6 19
11 December 34 6.3 °C 7 16
12 January 31 4.7 °C 7 18

For a beach holiday

August scores highest, with a sea temperature of 25 °C and air temperatures around 27 °C. The sea is above 20 °C from June to September.

Month Sea Air Sunshine Beach score
January 6.9 °C 4.7 °C 68 % 18
February 5.8 °C 6.3 °C 65 % 19
March 6.5 °C 9.7 °C 61 % 15
April 9.6 °C 14 °C 54 % 16
May 16 °C 20 °C 49 % 40
June 21 °C 24 °C 42 % 73
July 24 °C 27 °C 30 % 92
August 25 °C 27 °C 28 % 95
September 22 °C 22 °C 43 % 77
October 18 °C 17 °C 56 % 42
November 14 °C 11 °C 65 % 18
December 9.6 °C 6.3 °C 65 % 16

When to think twice

January scores lowest with about 7 wet days and highs near 4.7 °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 4.7 °C 41 mm 68 %
February 6.3 °C 33 mm 65 %
March 9.7 °C 43 mm 61 %
April 14.2 °C 39 mm 54 %
May 19.8 °C 49 mm 49 %
June 24.4 °C 58 mm 42 %
July 26.9 °C 41 mm 30 %
August 27.0 °C 36 mm 28 %
September 22.3 °C 50 mm 43 %
October 16.9 °C 44 mm 56 %
November 11.4 °C 42 mm 65 %
December 6.3 °C 43 mm 65 %

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.