Climate averages 1991–2020

Ōtawara weather
in March.

A cool, wet month: the 9th warmest and the 5th driest of the year.

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

Average high 10.0°C Daytime mean, March
Average low -0.1°C Night-time mean, March
Rainfall 104 mm 13 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Ōtawara · average highYear overview

March is a cool month in Ōtawara: daytime highs average 10.0°C and nights cool to about -0.1°C. By daytime temperature it is the 9th warmest of the 12 months.

Expect about 104 mm of rain on roughly 13 days, which makes March a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 56 min on an average March day.

The nearest other city in this atlas is Nasushiobara (13 km away). In March its highs average 9.3°C, 0.7°C cooler than Ōtawara, with 111 mm of rain.

Among the 303 cities listed in Japan, Ōtawara ranks joint 243rd of 303 for the warmest March highs and joint 59th of 303 for the driest March (rainfall, lowest first). The mean March high of those 303 cities is 11.5°C; Ōtawara is 1.4°C cooler than that mean.

From March to April, average highs rise by 5.7°C to 15.7°C, and monthly rainfall rises from 104 mm to 121 mm.

The annual picture

March 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. -5051015202530 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 2500

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

Every month, side by side

Ōtawara climate table

1991–2020
Monthly climate averages for Ōtawara, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 5.3°C-2.9°C-2.9°C547.19.910 h
February 6.2°C-2.6°C-2.6°C547.610.811 h
March, selected 10.0°C-0.1°C-0.1°C10412.511.912 h
April 15.7°C4.9°C4.9°C12112.413.113 h
May 20.6°C10.3°C10.3°C14213.414.114 h
June 23.5°C15.2°C15.2°C16316.214.615 h
July 26.8°C19.5°C19.5°C21219.714.414 h
August 27.9°C20.7°C20.7°C16216.713.614 h
September 24.0°C17.0°C17.0°C19315.312.512 h
October 18.6°C10.8°C10.8°C16912.911.311 h
November 13.3°C4.3°C4.3°C808.410.210 h
December 8.1°C-0.3°C-0.3°C516.89.710 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

March in nearby cities

Distance from Ōtawara

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 Ōtawara) is explained once on the Ōtawara year overview and on the Sources, method and limits page.