Chang-hua climate

Name: Chang-hua
Address: TW

Chang-hua is warmest in July, with average highs of 30 °C, and coldest in January, when nights average 14 °C. August is the wettest month (303 mm) and November the driest (42 mm). Figures are 1991–2020 climate normals.

Across a full year Chang-hua averages 1,751 mm of rain and 236 days above 25 °C.

Taiwan · population 226,564 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month July 30 °C
Coldest month January 14 °C
Driest month November 42 mm
Wettest month August 303 mm
Least cloud January 43 % cloud
Hottest on record May 36 °C
Coldest on record January 4.4 °C
Warmest sea August 29 °C

What to expectChang-hua through the year

Chang-hua has a clear annual cycle: average daily highs run from 20 °C in January to 30 °C in July, a swing of 11 °C in mean temperature across the year.

Counted across a normal year, 236 days a year reach 25 °C, 65 of them reach 30 °C. The warmest reading in the 1991–2020 record is 36 °C, in May.

Rain is strongly seasonal. August averages 303 mm against 42 mm in November — 7.2 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Chang-hua is warmest in August at 29 °C and coldest in January at 19 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

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 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	20.2 °C	13.5 °C	16.3 °C	28.4 °C	4.4 °C	1	0
February	20.9 °C	14.1 °C	17.0 °C	31.0 °C	7.0 °C	4	0
March	23.2 °C	16.2 °C	19.2 °C	32.6 °C	7.0 °C	10	0
April	26.0 °C	19.4 °C	22.4 °C	33.8 °C	10.8 °C	20	1
May	28.3 °C	22.2 °C	25.1 °C	36.3 °C	15.8 °C	29	6
June	29.7 °C	23.8 °C	26.6 °C	35.3 °C	17.9 °C	30	13
July	30.3 °C	24.6 °C	27.3 °C	35.6 °C	21.7 °C	31	19
August	29.8 °C	24.4 °C	27.0 °C	34.5 °C	21.1 °C	31	13
September	29.3 °C	23.6 °C	26.3 °C	35.0 °C	16.0 °C	30	9
October	27.9 °C	21.7 °C	24.4 °C	34.8 °C	12.5 °C	29	3
November	25.7 °C	19.0 °C	21.8 °C	32.2 °C	10.9 °C	18	1
December	21.9 °C	15.4 °C	18.1 °C	30.6 °C	5.6 °C	4	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	52 mm	7	11 h/day	43 %	78 %	22 km/h	19.3 °C
February	73 mm	8	11 h/day	49 %	79 %	21 km/h	19.6 °C
March	115 mm	12	12 h/day	54 %	80 %	20 km/h	21.6 °C
April	152 mm	12	13 h/day	60 %	82 %	17 km/h	24.1 °C
May	235 mm	16	13 h/day	68 %	82 %	15 km/h	26.1 °C
June	283 mm	19	14 h/day	79 %	83 %	16 km/h	27.5 °C
July	248 mm	18	13 h/day	71 %	83 %	16 km/h	28.4 °C
August	303 mm	21	13 h/day	71 %	85 %	15 km/h	28.5 °C
September	144 mm	12	12 h/day	59 %	82 %	16 km/h	27.7 °C
October	56 mm	5	12 h/day	43 %	76 %	21 km/h	25.8 °C
November	42 mm	5	11 h/day	44 %	77 %	21 km/h	24.0 °C
December	48 mm	6	11 h/day	43 %	76 %	23 km/h	21.2 °C

How Chang-hua compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Chang-hua	30 °C	14 °C	1,751 mm	236
Taichung · Taiwan	29 °C	13 °C	2,260 mm	226
Chiayi City · Taiwan	30 °C	12 °C	2,910 mm	240
Hsinchu · Taiwan	30 °C	13 °C	1,604 mm	189
Bade · Taiwan	31 °C	12 °C	1,538 mm	189
Yongkang · Taiwan	30 °C	14 °C	1,988 mm	264
Tainan · Taiwan	30 °C	15 °C	1,955 mm	256

Where Chang-hua ranks

Ranking	Position	Value
Best beach destinations in Asia in October	13thof 50	96/100
Best beach destinations in Asia in November	27thof 50	93/100
Best beach destinations in the world in October	35thof 50	96/100
Best beach destinations in the world in November	42ndof 50	93/100

Planning a trip? See the best time to visit Chang-hua.

QuestionsCommon questions about Chang-hua’s climate

When is the best time to visit Chang-hua?

That depends on what you want, so the honest answer is a comparison rather than a single month. March, November, December sit closest to 20 °C on average, July is the warmest month and November the driest. The month-by-month table above has the full picture.

How hot does Chang-hua get?

In July, the warmest month, daily highs average 30 °C. About 65 days a year pass 30 °C. The highest value in the 1991–2020 record is 36 °C.

How cold does it get in winter?

Nights average 14 °C in January, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Chang-hua?

August, averaging 303 mm over 21 days with rain. The driest month is November with 42 mm. The year as a whole averages 1,751 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Chang-hua rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. 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.