Monthly Climate
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Best time to visit Zhongshan

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

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 95/100
A beach holiday October sea 27 °C
The least cloud October 44 % average cloud cover
The least rain December 31 mm
Warmth July 31 °C
Cooler weather January 19 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 December 95 20 °C 4 67
2 November 93 25 °C 5 90
3 January 92 19 °C 5 55
4 February 90 21 °C 8 53
5 March 83 24 °C 11 62
6 October 76 28 °C 7 91
7 April 66 27 °C 15 71
8 September 51 30 °C 17 68
9 May 49 29 °C 20 74
10 June 41 30 °C 23 69
11 August 41 31 °C 24 64
12 July 39 31 °C 21 65

For a beach holiday

October scores highest, with a sea temperature of 27 °C and air temperatures around 28 °C. The sea is above 20 °C from April to December.

Month Sea Air Sunshine Beach score
January 18 °C 19 °C 56 % 55
February 18 °C 21 °C 68 % 53
March 20 °C 24 °C 74 % 62
April 22 °C 27 °C 73 % 71
May 26 °C 29 °C 77 % 74
June 28 °C 30 °C 83 % 69
July 29 °C 31 °C 75 % 65
August 29 °C 31 °C 72 % 64
September 28 °C 30 °C 59 % 68
October 27 °C 28 °C 44 % 91
November 23 °C 25 °C 45 % 90
December 20 °C 20 °C 48 % 67

When to think twice

July scores lowest with about 21 wet days and highs near 31 °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 19.2 °C 31 mm 56 %
February 20.7 °C 42 mm 68 %
March 23.6 °C 80 mm 74 %
April 26.7 °C 140 mm 73 %
May 29.0 °C 249 mm 77 %
June 30.4 °C 290 mm 83 %
July 31.1 °C 223 mm 75 %
August 31.0 °C 298 mm 72 %
September 30.0 °C 207 mm 59 %
October 28.0 °C 63 mm 44 %
November 24.7 °C 34 mm 45 %
December 20.4 °C 31 mm 48 %

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.