Fukushima climate

Name: Fukushima
Address: JP

Fukushima is warmest in August, with average highs of 28 °C, and coldest in January, when nights average -3.6 °C. July is the wettest month (192 mm) and February the driest (55 mm). Figures are 1991–2020 climate normals.

Across a full year Fukushima averages 1,358 mm of rain, 74 days above 25 °C and 89 days below freezing.

Japan · population 294,237 · 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 28 °C
Coldest month January -3.6 °C
Driest month February 55 mm
Wettest month July 192 mm
Least cloud November 59 % cloud
Hottest on record August 38 °C
Coldest on record January -14 °C

What to expectFukushima through the year

Fukushima has a clear annual cycle: average daily highs run from 4.0 °C in January to 28 °C in August, a swing of 24 °C in mean temperature across the year.

Counted across a normal year, 74 days a year reach 25 °C, 21 of them reach 30 °C, 89 nights drop below freezing. The warmest reading in the 1991–2020 record is 38 °C, in August.

Rain is strongly seasonal. July averages 192 mm against 55 mm in February — 3.5 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	4.0 °C	69 mm	63 %
February	5.0 °C	55 mm	62 %
March	9.1 °C	91 mm	62 %
April	15.6 °C	100 mm	62 %
May	20.7 °C	106 mm	68 %
June	23.6 °C	138 mm	78 %
July	26.9 °C	192 mm	81 %
August	28.0 °C	163 mm	74 %
September	24.2 °C	173 mm	73 %
October	18.7 °C	143 mm	65 %
November	12.9 °C	68 mm	59 %
December	7.0 °C	59 mm	61 %

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	4.0 °C	-3.6 °C	-0.1 °C	12.4 °C	-14.1 °C	0	0	27
February	5.0 °C	-3.1 °C	0.6 °C	18.3 °C	-12.2 °C	0	0	24
March	9.1 °C	-0.1 °C	4.1 °C	22.6 °C	-12.4 °C	0	0	17
April	15.6 °C	5.2 °C	10.0 °C	28.1 °C	-7.8 °C	0	0	2
May	20.7 °C	10.7 °C	15.5 °C	32.1 °C	2.2 °C	4	0	0
June	23.6 °C	15.5 °C	19.4 °C	33.9 °C	7.5 °C	11	1	0
July	26.9 °C	19.8 °C	23.0 °C	35.4 °C	11.2 °C	21	7	0
August	28.0 °C	20.9 °C	24.1 °C	37.7 °C	13.1 °C	24	11	0
September	24.2 °C	17.2 °C	20.3 °C	33.3 °C	5.7 °C	12	2	0
October	18.7 °C	10.8 °C	14.3 °C	27.7 °C	0.6 °C	1	0	0
November	12.9 °C	4.6 °C	8.3 °C	23.4 °C	-3.9 °C	0	0	2
December	7.0 °C	-0.4 °C	2.9 °C	17.9 °C	-11.4 °C	0	0	17

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	69 mm	11	9.8 h/day	63 %	77 %	17 km/h
February	55 mm	10	11 h/day	62 %	75 %	18 km/h
March	91 mm	12	12 h/day	62 %	73 %	17 km/h
April	100 mm	11	13 h/day	62 %	73 %	16 km/h
May	106 mm	12	14 h/day	68 %	77 %	13 km/h
June	138 mm	15	15 h/day	78 %	83 %	10 km/h
July	192 mm	19	15 h/day	81 %	87 %	9.6 km/h
August	163 mm	16	14 h/day	74 %	86 %	9.4 km/h
September	173 mm	14	12 h/day	73 %	85 %	11 km/h
October	143 mm	11	11 h/day	65 %	82 %	12 km/h
November	68 mm	9	10 h/day	59 %	80 %	14 km/h
December	59 mm	11	9.6 h/day	61 %	78 %	16 km/h

How Fukushima 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
Fukushima	28 °C	-3.6 °C	1,358 mm	74
Kōriyama · Japan	28 °C	-3.4 °C	1,232 mm	70
Yamagata · Japan	27 °C	-5.5 °C	1,438 mm	58
Sendai · Japan	26 °C	-2.4 °C	1,319 mm	50
Iwaki · Japan	28 °C	1.1 °C	1,522 mm	65

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

QuestionsCommon questions about Fukushima’s climate

When is the best time to visit Fukushima?

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

How hot does Fukushima get?

In August, the warmest month, daily highs average 28 °C. About 21 days a year pass 30 °C. The highest value in the 1991–2020 record is 38 °C.

How cold does it get in winter?

Nights average -3.6 °C in January, the coldest month. A normal year has 89 nights below freezing.

Which month is wettest in Fukushima?

July, averaging 192 mm over 19 days with rain. The driest month is February with 55 mm. The year as a whole averages 1,358 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 Fukushima 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: 37.750°, 140.467° (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.