Xiamen climate

Name: Xiamen
Address: CN

Xiamen is warmest in July, with average highs of 31 °C, and coldest in January, when nights average 10.0 °C. August is the wettest month (247 mm) and January the driest (40 mm). Figures are 1991–2020 climate normals.

Across a full year Xiamen averages 1,421 mm of rain, 198 days above 25 °C and 0 days below freezing.

China · population 4,617,251 · 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 31 °C
Coldest month January 10.0 °C
Driest month January 40 mm
Wettest month August 247 mm
Least cloud October 42 % cloud
Hottest on record August 39 °C
Coldest on record January -0.2 °C
Warmest sea August 28 °C

What to expectXiamen through the year

Xiamen has a clear annual cycle: average daily highs run from 17 °C in January to 31 °C in July, a swing of 15 °C in mean temperature across the year.

Counted across a normal year, 198 days a year reach 25 °C, 74 of them reach 30 °C, 0 nights drop below freezing. The warmest reading in the 1991–2020 record is 39 °C, in August.

Rain is strongly seasonal. August averages 247 mm against 40 mm in January — 6.1 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Xiamen is warmest in August at 28 °C and coldest in February at 15 °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	17.3 °C	40 mm	49 %
February	17.8 °C	64 mm	61 %
March	20.2 °C	90 mm	66 %
April	23.9 °C	104 mm	69 %
May	26.9 °C	179 mm	75 %
June	29.1 °C	243 mm	84 %
July	31.0 °C	186 mm	70 %
August	30.7 °C	247 mm	68 %
September	29.8 °C	134 mm	58 %
October	27.7 °C	43 mm	42 %
November	23.9 °C	50 mm	45 %
December	19.2 °C	42 mm	45 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	17.3 °C	10.0 °C	13.2 °C	26.7 °C	-0.2 °C	0	0
February	17.8 °C	10.8 °C	13.9 °C	28.1 °C	2.2 °C	1	0
March	20.2 °C	13.3 °C	16.3 °C	29.4 °C	3.4 °C	3	0
April	23.9 °C	17.4 °C	20.2 °C	32.9 °C	8.5 °C	12	1
May	26.9 °C	21.3 °C	23.7 °C	35.4 °C	13.8 °C	24	4
June	29.1 °C	24.5 °C	26.4 °C	36.6 °C	17.6 °C	29	10
July	31.0 °C	25.7 °C	28.0 °C	37.5 °C	23.2 °C	31	21
August	30.7 °C	25.5 °C	27.8 °C	38.7 °C	21.7 °C	31	20
September	29.8 °C	24.0 °C	26.6 °C	36.5 °C	17.1 °C	29	14
October	27.7 °C	20.7 °C	23.7 °C	36.0 °C	12.9 °C	27	4
November	23.9 °C	16.8 °C	19.8 °C	31.7 °C	7.3 °C	11	0
December	19.2 °C	11.9 °C	15.1 °C	29.3 °C	0.2 °C	0	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	40 mm	6	11 h/day	49 %	72 %	17 km/h	15.8 °C
February	64 mm	8	11 h/day	61 %	75 %	17 km/h	15.0 °C
March	90 mm	11	12 h/day	66 %	78 %	17 km/h	16.5 °C
April	104 mm	11	13 h/day	69 %	80 %	16 km/h	19.6 °C
May	179 mm	16	13 h/day	75 %	83 %	16 km/h	23.2 °C
June	243 mm	19	14 h/day	84 %	87 %	17 km/h	26.0 °C
July	186 mm	17	14 h/day	70 %	84 %	17 km/h	27.3 °C
August	247 mm	19	13 h/day	68 %	85 %	15 km/h	27.5 °C
September	134 mm	12	12 h/day	58 %	78 %	16 km/h	27.4 °C
October	43 mm	4	12 h/day	42 %	68 %	20 km/h	24.8 °C
November	50 mm	5	11 h/day	45 %	69 %	19 km/h	21.5 °C
December	42 mm	5	11 h/day	45 %	69 %	18 km/h	18.2 °C

How Xiamen 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
Xiamen	31 °C	10.0 °C	1,421 mm	198
Zhangzhou · China	32 °C	9.2 °C	1,477 mm	219
Jinjiang · China	31 °C	9.9 °C	1,271 mm	189
Quanzhou · China	32 °C	9.4 °C	1,344 mm	202
Longyan · China	31 °C	7.5 °C	1,720 mm	202
Huanggang · China	30 °C	11 °C	1,602 mm	214
Putian · China	31 °C	8.7 °C	1,479 mm	179

Where Xiamen ranks

Ranking	Position	Value
Best beach destinations in Asia in October	7th of 50	98/100
Best beach destinations in the world in October	20th of 50	98/100

Planning a trip? See the best time to visit Xiamen.

QuestionsCommon questions about Xiamen’s climate

When is the best time to visit Xiamen?

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

How hot does Xiamen get?

In July, the warmest month, daily highs average 31 °C. About 74 days a year pass 30 °C. The highest value in the 1991–2020 record is 39 °C.

How cold does it get in winter?

Nights average 10.0 °C in January, the coldest month. A normal year has 0 nights below freezing.

Which month is wettest in Xiamen?

August, averaging 247 mm over 19 days with rain. The driest month is January with 40 mm. The year as a whole averages 1,421 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 Xiamen 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
Data point: 24.480°, 118.082° (the coordinates the reanalysis values are taken for)
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.