Tochigi climate

Name: Tochigi
Address: JP

Tochigi is warmest in August, with average highs of 29 °C, and coldest in January, when nights average -1.9 °C. July is the wettest month (253 mm) and December the driest (53 mm). Figures are 1991–2020 climate normals.

Across a full year Tochigi averages 1,777 mm of rain, 93 days above 25 °C and 71 days below freezing.

Japan · population 159,056 · 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 29 °C
Coldest month January -1.9 °C
Driest month December 53 mm
Wettest month July 253 mm
Least cloud January 40 % cloud
Hottest on record July 36 °C
Coldest on record January -15 °C

What to expectTochigi through the year

Tochigi has a clear annual cycle: average daily highs run from 7.2 °C in January to 29 °C in August, a swing of 23 °C in mean temperature across the year.

Counted across a normal year, 93 days a year reach 25 °C, 29 of them reach 30 °C, 71 nights drop below freezing. The warmest reading in the 1991–2020 record is 36 °C, in July.

Rain is strongly seasonal. July averages 253 mm against 53 mm in December — 4.7 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	7.2 °C	55 mm	40 %
February	8.2 °C	57 mm	47 %
March	12.1 °C	109 mm	55 %
April	17.5 °C	132 mm	60 %
May	22.1 °C	174 mm	69 %
June	24.8 °C	207 mm	82 %
July	28.2 °C	253 mm	80 %
August	29.4 °C	200 mm	72 %
September	25.6 °C	244 mm	72 %
October	20.2 °C	206 mm	63 %
November	14.8 °C	87 mm	49 %
December	9.6 °C	53 mm	40 %

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	7.2 °C	-1.9 °C	2.1 °C	16.5 °C	-15.5 °C	0	0	25
February	8.2 °C	-1.1 °C	3.1 °C	20.0 °C	-12.0 °C	0	0	20
March	12.1 °C	2.0 °C	6.7 °C	23.8 °C	-7.5 °C	0	0	10
April	17.5 °C	7.3 °C	12.1 °C	28.4 °C	-5.5 °C	0	0	1
May	22.1 °C	12.6 °C	17.1 °C	31.5 °C	2.1 °C	6	0	0
June	24.8 °C	17.2 °C	20.7 °C	34.0 °C	9.5 °C	14	2	0
July	28.2 °C	21.2 °C	24.4 °C	36.4 °C	14.2 °C	25	10	0
August	29.4 °C	22.4 °C	25.5 °C	36.2 °C	15.6 °C	28	14	0
September	25.6 °C	18.9 °C	21.9 °C	34.3 °C	8.8 °C	17	3	0
October	20.2 °C	12.7 °C	16.2 °C	31.1 °C	3.0 °C	2	0	0
November	14.8 °C	6.1 °C	10.1 °C	22.7 °C	-5.0 °C	0	0	1
December	9.6 °C	0.6 °C	4.6 °C	22.1 °C	-8.2 °C	0	0	15

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	55 mm	6	10.0 h/day	40 %	70 %	14 km/h
February	57 mm	8	11 h/day	47 %	69 %	15 km/h
March	109 mm	13	12 h/day	55 %	71 %	15 km/h
April	132 mm	13	13 h/day	60 %	74 %	16 km/h
May	174 mm	15	14 h/day	69 %	77 %	14 km/h
June	207 mm	19	15 h/day	82 %	82 %	12 km/h
July	253 mm	21	14 h/day	80 %	85 %	11 km/h
August	200 mm	18	14 h/day	72 %	83 %	11 km/h
September	244 mm	17	12 h/day	72 %	83 %	12 km/h
October	206 mm	14	11 h/day	63 %	81 %	11 km/h
November	87 mm	9	10 h/day	49 %	78 %	11 km/h
December	53 mm	6	9.7 h/day	40 %	74 %	12 km/h

How Tochigi 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
Tochigi	29 °C	-1.9 °C	1,777 mm	93
Oyama · Japan	30 °C	-1.8 °C	1,576 mm	96
Utsunomiya · Japan	28 °C	-2.5 °C	1,399 mm	80
Ōta · Japan	30 °C	-1.6 °C	1,478 mm	93

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

QuestionsCommon questions about Tochigi’s climate

When is the best time to visit Tochigi?

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

How hot does Tochigi get?

In August, the warmest month, daily highs average 29 °C. About 29 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 -1.9 °C in January, the coldest month. A normal year has 71 nights below freezing.

Which month is wettest in Tochigi?

July, averaging 253 mm over 21 days with rain. The driest month is December with 53 mm. The year as a whole averages 1,777 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 Tochigi 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: 36.383°, 139.733° (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.