Neihu climate

Name: Neihu
Address: TW

Neihu is warmest in July, with average highs of 31 °C, and coldest in January, when nights average 14 °C. August is the wettest month (309 mm) and January the driest (88 mm). Figures are 1991–2020 climate normals.

Across a full year Neihu averages 2,134 mm of rain and 189 days above 25 °C.

Taiwan · population 274,538 · 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 14 °C
Driest month January 88 mm
Wettest month August 309 mm
Least cloud September 63 % cloud
Hottest on record July 37 °C
Coldest on record January 4.5 °C
Warmest sea August 29 °C

What to expectNeihu through the year

Neihu has a clear annual cycle: average daily highs run from 18 °C in January to 31 °C in July, a swing of 13 °C in mean temperature across the year.

Counted across a normal year, 189 days a year reach 25 °C, 72 of them reach 30 °C. The warmest reading in the 1991–2020 record is 37 °C, in July.

Rain is strongly seasonal. August averages 309 mm against 88 mm in January — 3.5 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Neihu is warmest in August at 29 °C and coldest in February at 18 °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	17.9 °C	88 mm	74 %
February	18.7 °C	96 mm	73 %
March	20.9 °C	108 mm	72 %
April	24.2 °C	134 mm	72 %
May	27.1 °C	205 mm	74 %
June	29.5 °C	256 mm	82 %
July	31.0 °C	228 mm	68 %
August	30.5 °C	309 mm	64 %
September	28.6 °C	256 mm	63 %
October	25.4 °C	216 mm	67 %
November	22.8 °C	134 mm	70 %
December	19.3 °C	106 mm	73 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	17.9 °C	14.1 °C	15.9 °C	27.1 °C	4.5 °C	0	0
February	18.7 °C	14.4 °C	16.4 °C	27.4 °C	7.0 °C	1	0
March	20.9 °C	16.2 °C	18.3 °C	29.4 °C	5.7 °C	4	0
April	24.2 °C	19.3 °C	21.5 °C	31.8 °C	9.2 °C	14	0
May	27.1 °C	22.5 °C	24.6 °C	34.4 °C	15.1 °C	24	4
June	29.5 °C	24.9 °C	27.1 °C	35.4 °C	19.0 °C	29	15
July	31.0 °C	26.1 °C	28.5 °C	36.6 °C	22.9 °C	31	24
August	30.5 °C	26.0 °C	28.1 °C	34.6 °C	23.0 °C	31	21
September	28.6 °C	24.7 °C	26.4 °C	36.0 °C	18.7 °C	29	7
October	25.4 °C	22.3 °C	23.7 °C	34.0 °C	15.5 °C	17	1
November	22.8 °C	19.6 °C	21.1 °C	29.5 °C	11.2 °C	7	0
December	19.3 °C	15.9 °C	17.5 °C	28.1 °C	6.3 °C	1	0

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	88 mm	14	11 h/day	74 %	80 %	15 km/h	18.5 °C
February	96 mm	13	11 h/day	73 %	82 %	15 km/h	17.9 °C
March	108 mm	14	12 h/day	72 %	83 %	14 km/h	19.7 °C
April	134 mm	16	13 h/day	72 %	84 %	13 km/h	22.9 °C
May	205 mm	19	13 h/day	74 %	85 %	12 km/h	25.6 °C
June	256 mm	21	14 h/day	82 %	86 %	10 km/h	27.3 °C
July	228 mm	18	14 h/day	68 %	84 %	11 km/h	28.5 °C
August	309 mm	21	13 h/day	64 %	85 %	12 km/h	28.6 °C
September	256 mm	17	12 h/day	63 %	84 %	15 km/h	27.6 °C
October	216 mm	16	12 h/day	67 %	81 %	17 km/h	25.4 °C
November	134 mm	15	11 h/day	70 %	82 %	17 km/h	23.3 °C
December	106 mm	15	11 h/day	73 %	80 %	16 km/h	20.6 °C

How Neihu 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
Neihu	31 °C	14 °C	2,134 mm	189
Taipei · Taiwan	31 °C	14 °C	2,077 mm	189
Xizhi · Taiwan	31 °C	15 °C	2,361 mm	185
Keelung · Taiwan	31 °C	15 °C	2,471 mm	185
Danshui · Taiwan	31 °C	14 °C	1,593 mm	184
Taoyuan · Taiwan	30 °C	13 °C	1,522 mm	178
Bade · Taiwan	31 °C	12 °C	1,538 mm	189

Where Neihu ranks

Ranking	Position	Value
Best beach destinations in Asia in May	50th of 50	75/100

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

QuestionsCommon questions about Neihu’s climate

When is the best time to visit Neihu?

That depends on what you want, so the honest answer is a comparison rather than a single month. March, April, 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 Neihu get?

In July, the warmest month, daily highs average 31 °C. About 72 days a year pass 30 °C. The highest value in the 1991–2020 record is 37 °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 Neihu?

August, averaging 309 mm over 21 days with rain. The driest month is January with 88 mm. The year as a whole averages 2,134 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 Neihu 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: 25.081°, 121.588° (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.