Climate averages 1991–2020

Honjō weather
in July.

A warm, very wet month: the 2nd warmest and one of the wettest of the year.

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

Average high 27.5°C Daytime mean, July
Average low 20.8°C Night-time mean, July
Rainfall 199 mm 18 days with ≥1 mm
Daylight 14 h Sunrise to sunset, per day
Every month in Honjō · average highYear overview

July is a warm month in Honjō: daytime highs average 27.5°C and nights cool to about 20.8°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 199 mm of rain on roughly 18 days, which makes July a very wet month (one of the wettest months of the year). Daylight, from sunrise to sunset, lasts about 14 h 22 min on an average July day.

The nearest other city in this atlas is Isesaki (9 km away). In July its highs average 27.2°C, about as warm as Honjō, with 199 mm of rain.

Among the 303 cities listed in Japan, Honjō ranks joint 203rd of 303 for the warmest July highs and joint 142nd of 303 for the driest July (rainfall, lowest first). The mean July high of those 303 cities is 27.9°C; Honjō is 0.4°C cooler than that mean.

From July to August, average highs rise by 1.1°C to 28.6°C, and monthly rainfall falls from 199 mm to 152 mm.

The annual picture

July 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 2000

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

Every month, side by side

Honjō climate table

1991–2020
Monthly climate averages for Honjō, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 6.8°C-2.0°C-2.0°C546.510.010 h
February 7.8°C-1.5°C-1.5°C547.310.811 h
March 11.6°C1.5°C1.5°C9911.911.912 h
April 16.9°C6.6°C6.6°C11111.713.113 h
May 21.5°C12.0°C12.0°C13212.914.114 h
June 24.0°C16.6°C16.6°C17316.414.615 h
July, selected 27.5°C20.8°C20.8°C19917.814.414 h
August 28.6°C21.9°C21.9°C15216.013.514 h
September 24.8°C18.4°C18.4°C19916.112.412 h
October 19.4°C12.3°C12.3°C18712.811.311 h
November 14.4°C5.8°C5.8°C697.810.310 h
December 9.4°C0.8°C0.8°C476.69.710 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

July in nearby cities

Distance from Honjō

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

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