Odawara climate

Name: Odawara
Address: JP

Odawara is warmest in August, with average highs of 28 °C, and coldest in January, when nights average 2.5 °C. September is the wettest month (264 mm) and December the driest (88 mm). Figures are 1991–2020 climate normals.

Across a full year Odawara averages 2,137 mm of rain, 71 days above 25 °C and 10 days below freezing.

Japan · population 188,856 · 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 2.5 °C
Driest month December 88 mm
Wettest month September 264 mm
Least cloud January 45 % cloud
Hottest on record August 35 °C
Coldest on record February -9.1 °C
Warmest sea August 26 °C

What to expectOdawara through the year

Odawara has a clear annual cycle: average daily highs run from 8.7 °C in January to 28 °C in August, a swing of 20 °C in mean temperature across the year.

Counted across a normal year, 71 days a year reach 25 °C, 5 of them reach 30 °C, 10 nights drop below freezing. The warmest reading in the 1991–2020 record is 35 °C, in August.

Rain is strongly seasonal. September averages 264 mm against 88 mm in December — 3.0 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Odawara is warmest in August at 26 °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	8.7 °C	96 mm	45 %
February	9.2 °C	110 mm	54 %
March	12.0 °C	180 mm	62 %
April	16.2 °C	177 mm	66 %
May	20.1 °C	184 mm	73 %
June	22.8 °C	247 mm	85 %
July	26.3 °C	232 mm	79 %
August	27.6 °C	184 mm	70 %
September	24.9 °C	264 mm	72 %
October	20.1 °C	247 mm	66 %
November	15.6 °C	128 mm	57 %
December	11.1 °C	88 mm	46 %

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	8.7 °C	2.5 °C	5.5 °C	17.5 °C	-4.7 °C	0	0	4
February	9.2 °C	2.7 °C	5.8 °C	19.5 °C	-9.1 °C	0	0	4
March	12.0 °C	5.6 °C	8.7 °C	21.6 °C	-1.8 °C	0	0	1
April	16.2 °C	10.0 °C	13.1 °C	24.3 °C	-0.7 °C	0	0	0
May	20.1 °C	14.6 °C	17.3 °C	27.4 °C	7.3 °C	1	0	0
June	22.8 °C	18.4 °C	20.6 °C	29.6 °C	11.3 °C	5	0	0
July	26.3 °C	22.2 °C	24.2 °C	32.3 °C	16.6 °C	22	1	0
August	27.6 °C	23.4 °C	25.4 °C	34.5 °C	16.9 °C	28	4	0
September	24.9 °C	20.5 °C	22.6 °C	33.3 °C	13.3 °C	15	1	0
October	20.1 °C	15.5 °C	17.7 °C	29.7 °C	7.2 °C	1	0	0
November	15.6 °C	10.2 °C	12.8 °C	22.9 °C	1.7 °C	0	0	0
December	11.1 °C	5.2 °C	8.1 °C	21.7 °C	-3.4 °C	0	0	1

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	96 mm	10	10 h/day	45 %	67 %	11 km/h	16.3 °C
February	110 mm	11	11 h/day	54 %	68 %	11 km/h	15.3 °C
March	180 mm	15	12 h/day	62 %	72 %	13 km/h	15.6 °C
April	177 mm	14	13 h/day	66 %	76 %	13 km/h	16.8 °C
May	184 mm	14	14 h/day	73 %	80 %	12 km/h	18.9 °C
June	247 mm	18	15 h/day	85 %	86 %	11 km/h	21.3 °C
July	232 mm	17	14 h/day	79 %	87 %	11 km/h	23.9 °C
August	184 mm	16	14 h/day	70 %	86 %	11 km/h	26.1 °C
September	264 mm	16	12 h/day	72 %	82 %	11 km/h	25.3 °C
October	247 mm	14	11 h/day	66 %	78 %	11 km/h	23.0 °C
November	128 mm	11	10 h/day	57 %	75 %	10 km/h	20.8 °C
December	88 mm	10	9.8 h/day	46 %	69 %	11 km/h	18.4 °C

How Odawara 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
Odawara	28 °C	2.5 °C	2,137 mm	71
Hadano · Japan	28 °C	1.2 °C	1,862 mm	82
Atsugi · Japan	28 °C	1.8 °C	1,863 mm	74
Fujisawa · Japan	28 °C	3.1 °C	1,601 mm	72
Numazu · Japan	29 °C	3.1 °C	2,119 mm	91
Aihara · Japan	28 °C	-1.5 °C	1,881 mm	80
Machida · Japan	28 °C	0.4 °C	1,619 mm	75

Where Odawara ranks

Ranking	Position	Value
The coolest places in Asia in June	46th of 50	23 °C

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

QuestionsCommon questions about Odawara’s climate

When is the best time to visit Odawara?

That depends on what you want, so the honest answer is a comparison rather than a single month. June, September, October 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 Odawara get?

In August, the warmest month, daily highs average 28 °C. About 5 days a year pass 30 °C. The highest value in the 1991–2020 record is 35 °C.

How cold does it get in winter?

Nights average 2.5 °C in January, the coldest month. A normal year has 10 nights below freezing.

Which month is wettest in Odawara?

September, averaging 264 mm over 16 days with rain. The driest month is December with 88 mm. The year as a whole averages 2,137 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 Odawara 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: 35.256°, 139.160° (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.