Climate averages 1991–2020

Tokorozawa weather
in October.

A mild, very wet month: the 6th warmest and the wettest of the year.

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

Average high 19.8°C Daytime mean, October
Average low 12.8°C Night-time mean, October
Rainfall 215 mm 14 days with ≥1 mm
Daylight 11 h Sunrise to sunset, per day
Every month in Tokorozawa · average highYear overview

October is a mild month in Tokorozawa: daytime highs average 19.8°C and nights cool to about 12.8°C. By daytime temperature it is the 6th warmest of the 12 months.

Expect about 215 mm of rain on roughly 14 days, which makes October a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 19 min on an average October day.

The nearest other city in this atlas is Sayama (8 km away). In October its highs average 19.9°C, about as warm as Tokorozawa, with 215 mm of rain.

Among the 303 cities listed in Japan, Tokorozawa ranks joint 221st of 303 for the warmest October highs and joint 253rd of 303 for the driest October (rainfall, lowest first). The mean October high of those 303 cities is 20.4°C; Tokorozawa is 0.6°C cooler than that mean.

From October to November, average highs fall by 5.1°C to 14.7°C, and monthly rainfall falls from 215 mm to 92 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. -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 2500

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

Every month, side by side

Tokorozawa climate table

1991–2020
Monthly climate averages for Tokorozawa, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 7.3°C-2.4°C-2.4°C697.510.010 h
February 8.3°C-1.7°C-1.7°C668.510.911 h
March 11.8°C1.8°C1.8°C12013.211.912 h
April 16.9°C7.1°C7.1°C12312.813.113 h
May 21.4°C12.5°C12.5°C13913.114.014 h
June 24.0°C17.0°C17.0°C17715.414.515 h
July 27.7°C21.2°C21.2°C18216.414.314 h
August 29.0°C22.4°C22.4°C14215.413.514 h
September 25.2°C18.9°C18.9°C20414.912.412 h
October, selected 19.8°C12.8°C12.8°C21513.711.311 h
November 14.7°C6.4°C6.4°C9210.210.310 h
December 9.8°C0.6°C0.6°C617.49.810 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

October in nearby cities

Distance from Tokorozawa

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

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