Monthly Climate
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Best time to visit Kwai Chung

December is the best time to visit Kwai Chung for general sightseeing, with average highs of 20 °C and about 4 wet days. The comfortable season runs roughly November to March. The sea stays above 20 °C from March 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 January 24 mm
Warmth July 30 °C
Cooler weather January 19 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 December 95 20 °C 4 69
2 November 93 24 °C 5 89
3 January 92 19 °C 4 61
4 February 91 20 °C 6 61
5 March 86 23 °C 10 67
6 October 78 27 °C 7 92
7 April 71 26 °C 14 73
8 September 53 29 °C 17 70
9 May 52 28 °C 20 75
10 June 45 29 °C 23 71
11 August 43 30 °C 24 68
12 July 42 30 °C 23 68

For a beach holiday

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

Month Sea Air Sunshine Beach score
January 20 °C 19 °C 54 % 61
February 20 °C 20 °C 67 % 61
March 21 °C 23 °C 72 % 67
April 23 °C 26 °C 73 % 73
May 26 °C 28 °C 77 % 75
June 28 °C 29 °C 84 % 71
July 29 °C 30 °C 75 % 68
August 29 °C 30 °C 73 % 68
September 28 °C 29 °C 60 % 70
October 27 °C 27 °C 44 % 92
November 24 °C 24 °C 45 % 89
December 21 °C 20 °C 48 % 69

When to think twice

July scores lowest with about 23 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 18.9 °C 24 mm 54 %
February 20.2 °C 34 mm 67 %
March 22.9 °C 72 mm 72 %
April 25.8 °C 127 mm 73 %
May 28.1 °C 230 mm 77 %
June 29.4 °C 328 mm 84 %
July 30.1 °C 247 mm 75 %
August 30.1 °C 325 mm 73 %
September 29.3 °C 212 mm 60 %
October 27.3 °C 67 mm 44 %
November 24.2 °C 35 mm 45 %
December 20.1 °C 29 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.