Nagoya climate

Name: Nagoya
Address: JP

Nagoya is warmest in August, with average highs of 31 °C, and coldest in January, when nights average -0.6 °C. July is the wettest month (198 mm) and January the driest (54 mm). Figures are 1991–2020 climate normals.

Across a full year Nagoya averages 1,519 mm of rain, 113 days above 25 °C and 56 days below freezing.

Japan · population 2,332,176 · 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 August 31 °C
Coldest month January -0.6 °C
Driest month January 54 mm
Wettest month July 198 mm
Least cloud December 42 % cloud
Hottest on record August 39 °C
Coldest on record December -8.9 °C

What to expectNagoya through the year

Nagoya has a clear annual cycle: average daily highs run from 8.1 °C in January to 31 °C in August, a swing of 23 °C in mean temperature across the year.

Counted across a normal year, 113 days a year reach 25 °C, 39 of them reach 30 °C, 56 nights drop below freezing. The warmest reading in the 1991–2020 record is 39 °C, in August.

Rain is strongly seasonal. July averages 198 mm against 54 mm in January — 3.7 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	8.1 °C	54 mm	44 %
February	9.2 °C	64 mm	48 %
March	13.0 °C	110 mm	52 %
April	18.2 °C	123 mm	56 %
May	22.8 °C	145 mm	64 %
June	25.9 °C	190 mm	77 %
July	29.3 °C	198 mm	71 %
August	30.8 °C	119 mm	59 %
September	27.2 °C	198 mm	61 %
October	21.6 °C	177 mm	53 %
November	15.9 °C	84 mm	46 %
December	10.5 °C	56 mm	42 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C	Days below 0 °C
January	8.1 °C	-0.6 °C	3.2 °C	17.2 °C	-5.4 °C	0	0	21
February	9.2 °C	-0.1 °C	4.0 °C	19.1 °C	-6.7 °C	0	0	17
March	13.0 °C	2.9 °C	7.6 °C	22.9 °C	-3.6 °C	0	0	8
April	18.2 °C	8.2 °C	12.9 °C	27.9 °C	-0.9 °C	1	0	0
May	22.8 °C	13.3 °C	17.8 °C	31.5 °C	3.1 °C	6	0	0
June	25.9 °C	18.2 °C	21.8 °C	34.4 °C	10.7 °C	19	2	0
July	29.3 °C	22.4 °C	25.5 °C	38.3 °C	15.5 °C	29	13	0
August	30.8 °C	23.4 °C	26.7 °C	38.6 °C	16.6 °C	31	20	0
September	27.2 °C	19.7 °C	23.0 °C	37.0 °C	9.0 °C	23	4	0
October	21.6 °C	13.3 °C	17.0 °C	30.0 °C	3.6 °C	4	0	0
November	15.9 °C	7.0 °C	11.0 °C	25.8 °C	-0.5 °C	0	0	0
December	10.5 °C	1.7 °C	5.6 °C	21.3 °C	-8.9 °C	0	0	10

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	54 mm	6	10 h/day	44 %	72 %	18 km/h
February	64 mm	7	11 h/day	48 %	70 %	18 km/h
March	110 mm	10	12 h/day	52 %	70 %	19 km/h
April	123 mm	11	13 h/day	56 %	71 %	19 km/h
May	145 mm	10	14 h/day	64 %	74 %	17 km/h
June	190 mm	14	15 h/day	77 %	79 %	15 km/h
July	198 mm	14	14 h/day	71 %	82 %	14 km/h
August	119 mm	12	13 h/day	59 %	79 %	14 km/h
September	198 mm	12	12 h/day	61 %	79 %	15 km/h
October	177 mm	10	11 h/day	53 %	78 %	14 km/h
November	84 mm	7	10 h/day	46 %	77 %	14 km/h
December	56 mm	6	9.8 h/day	42 %	75 %	16 km/h

How Nagoya 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
Nagoya	31 °C	-0.6 °C	1,519 mm	113
Ichinomiya · Japan	30 °C	-0.9 °C	1,884 mm	109
Toyota · Japan	31 °C	0.03 °C	1,878 mm	115
Anjō · Japan	31 °C	-0.08 °C	1,493 mm	111

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

QuestionsCommon questions about Nagoya’s climate

When is the best time to visit Nagoya?

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

How hot does Nagoya get?

In August, the warmest month, daily highs average 31 °C. About 39 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 -0.6 °C in January, the coldest month. A normal year has 56 nights below freezing.

Which month is wettest in Nagoya?

July, averaging 198 mm over 14 days with rain. The driest month is January with 54 mm. The year as a whole averages 1,519 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 Nagoya 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: 35.181°, 136.906° (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.