Monthly Climate
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Best time to visit Donghai

December is the best time to visit Donghai for general sightseeing, with average highs of 21 °C and about 4 wet days. The comfortable season runs roughly November to March. The sea stays above 20 °C from March to November.

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 December comfort 96/100
A beach holiday October sea 26 °C
The least cloud November 44 % average cloud cover
The least rain January 26 mm
Warmth August 30 °C
Cooler weather January 20 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 December 96 21 °C 4 67
2 January 93 20 °C 4 60
3 November 93 25 °C 5 91
4 February 92 21 °C 6 59
5 March 88 23 °C 10 65
6 October 79 28 °C 6 94
7 April 76 26 °C 12 75
8 May 54 28 °C 20 75
9 September 52 30 °C 17 70
10 June 46 29 °C 25 72
11 August 43 30 °C 25 68
12 July 43 30 °C 24 68

For a beach holiday

October scores highest, with a sea temperature of 26 °C and air temperatures around 28 °C. The sea is above 20 °C from March to November.

Month Sea Air Sunshine Beach score
January 19 °C 20 °C 49 % 60
February 19 °C 21 °C 63 % 59
March 20 °C 23 °C 69 % 65
April 22 °C 26 °C 73 % 75
May 25 °C 28 °C 78 % 75
June 28 °C 29 °C 85 % 72
July 28 °C 30 °C 76 % 68
August 28 °C 30 °C 75 % 68
September 28 °C 30 °C 62 % 70
October 26 °C 28 °C 45 % 94
November 23 °C 25 °C 44 % 91
December 20 °C 21 °C 45 % 67

When to think twice

July scores lowest with about 24 wet days and highs near 30 °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 19.6 °C 26 mm 49 %
February 20.6 °C 40 mm 63 %
March 23.2 °C 62 mm 69 %
April 26.0 °C 124 mm 73 %
May 28.2 °C 229 mm 78 %
June 29.3 °C 332 mm 85 %
July 30.3 °C 287 mm 76 %
August 30.3 °C 343 mm 75 %
September 29.7 °C 205 mm 62 %
October 28.0 °C 56 mm 45 %
November 25.1 °C 41 mm 44 %
December 20.8 °C 31 mm 45 %

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.