Climate averages 1991–2020

Odawara weather
in December.

A cool, wet month: the 10th warmest and the driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 11.6°C Daytime mean, December
Average low 4.9°C Night-time mean, December
Rainfall 94 mm 11 days with ≥1 mm
Daylight 10 h Sunrise to sunset, per day
Every month in Odawara · average highYear overview

December is a cool month in Odawara: daytime highs average 11.6°C and nights cool to about 4.9°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 94 mm of rain on roughly 11 days, which makes December a wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 9 h 50 min on an average December day.

The nearest other city in this atlas is Hadano (14 km away). In December its highs average 10.8°C, 0.7°C cooler than Odawara, with 94 mm of rain.

Among the 303 cities listed in Japan, Odawara ranks joint 28th of 303 for the warmest December highs and joint 256th of 303 for the driest December (rainfall, lowest first). The mean December high of those 303 cities is 9.5°C; Odawara is 2.1°C warmer than that mean.

From December to January, average highs fall by 2.6°C to 9.0°C, and monthly rainfall rises from 94 mm to 97 mm.

The annual picture

December in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -505101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 3000

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Odawara climate table

1991–2020
Monthly climate averages for Odawara, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 9.0°C2.0°C2.0°C9710.010.110 h
February 9.6°C1.9°C1.9°C10811.410.911 h
March 12.9°C4.9°C4.9°C18616.311.912 h
April 17.6°C9.6°C9.6°C17614.413.113 h
May 21.8°C14.5°C14.5°C18113.514.014 h
June 24.5°C18.7°C18.7°C23115.914.514 h
July 28.3°C22.7°C22.7°C20014.714.314 h
August 29.4°C23.9°C23.9°C15413.513.513 h
September 26.1°C20.8°C20.8°C24115.512.412 h
October 21.1°C15.6°C15.6°C26715.511.311 h
November 16.4°C10.0°C10.0°C14113.110.310 h
December, selected 11.6°C4.9°C4.9°C9410.99.810 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

December in nearby cities

Distance from Odawara

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Odawara) is explained once on the Odawara year overview and on the Sources, method and limits page.

Hiratsuka and Hadano lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.