Climate averages 1991–2020

Hachinohe weather
in October.

A mild, wet month: the 6th warmest and the 9th driest of the year.

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

Average high 17.2°C Daytime mean, October
Average low 9.5°C Night-time mean, October
Rainfall 102 mm 9 days with ≥1 mm
Daylight 11 h Sunrise to sunset, per day
Every month in Hachinohe · average highYear overview

October is a mild month in Hachinohe: daytime highs average 17.2°C and nights cool to about 9.5°C. By daytime temperature it is the 6th warmest of the 12 months.

Expect about 102 mm of rain on roughly 9 days, which makes October a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 10 min on an average October day.

The nearest other city in this atlas is Aomori (74 km away). In October its highs average 16.6°C, 0.5°C cooler than Hachinohe, with 112 mm of rain.

Among the 303 cities listed in Japan, Hachinohe ranks joint 281st of 303 for the warmest October highs and joint 20th of 303 for the driest October (rainfall, lowest first). The mean October high of those 303 cities is 20.4°C; Hachinohe is 3.2°C cooler than that mean.

From October to November, average highs fall by 6.6°C to 10.6°C, and monthly rainfall falls from 102 mm to 54 mm.

The annual picture

October 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. -10-5051015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly precipitation

Average total · mm
Average monthly precipitation totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

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

Every month, side by side

Hachinohe climate table

1991–2020
Monthly climate averages for Hachinohe, 1991–2020
MonthAverage highHigh / lowAverage lowPrecipitation mm/monthWet days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 1.1°C-5.6°C-5.6°C467.49.610 h
February 1.9°C-5.8°C-5.8°C487.510.611 h
March 6.4°C-2.2°C-2.2°C7210.611.912 h
April 13.0°C3.6°C3.6°C7811.913.313 h
May 18.3°C9.2°C9.2°C8811.414.414 h
June 21.4°C13.6°C13.6°C9110.715.015 h
July 24.8°C18.2°C18.2°C13213.414.815 h
August 26.3°C19.6°C19.6°C13213.013.814 h
September 22.9°C16.0°C16.0°C12711.212.513 h
October, selected 17.2°C9.5°C9.5°C1029.211.211 h
November 10.6°C3.1°C3.1°C549.010.010 h
December 3.9°C-2.5°C-2.5°C508.09.39 h

Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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

October in nearby cities

Distance from Hachinohe

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