Monthly Climate
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Best time to visit Chang-hua

December is the best time to visit Chang-hua for general sightseeing, with average highs of 22 °C and about 6 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 90/100
A beach holiday October sea 26 °C
The least cloud January 43 % average cloud cover
The least rain November 42 mm
Warmth July 30 °C
Cooler weather January 20 °C

Ranked by comfort

# Month Comfort / 100 Avg high Wet days Beach
1 December 90 22 °C 6 73
2 January 87 20 °C 7 57
3 February 87 21 °C 8 59
4 November 85 26 °C 5 93
5 March 81 23 °C 12 65
6 October 76 28 °C 5 96
7 April 75 26 °C 12 78
8 September 60 29 °C 12 78
9 May 60 28 °C 16 75
10 June 50 30 °C 19 71
11 July 48 30 °C 18 67
12 August 47 30 °C 21 69

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 December.

Month Sea Air Sunshine Beach score
January 19 °C 20 °C 43 % 57
February 20 °C 21 °C 49 % 59
March 22 °C 23 °C 54 % 65
April 24 °C 26 °C 60 % 78
May 26 °C 28 °C 68 % 75
June 28 °C 30 °C 79 % 71
July 28 °C 30 °C 71 % 67
August 29 °C 30 °C 71 % 69
September 28 °C 29 °C 59 % 78
October 26 °C 28 °C 43 % 96
November 24 °C 26 °C 44 % 93
December 21 °C 22 °C 43 % 73

When to think twice

August scores lowest with about 21 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 20.2 °C 52 mm 43 %
February 20.9 °C 73 mm 49 %
March 23.2 °C 115 mm 54 %
April 26.0 °C 152 mm 60 %
May 28.3 °C 235 mm 68 %
June 29.7 °C 283 mm 79 %
July 30.3 °C 248 mm 71 %
August 29.8 °C 303 mm 71 %
September 29.3 °C 144 mm 59 %
October 27.9 °C 56 mm 43 %
November 25.7 °C 42 mm 44 %
December 21.9 °C 48 mm 43 %

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.