Honjō in Fall

In fall (September, October and November), Honjō sees average daytime highs around 21°C and overnight lows near 13°C, with 455 mm of rain over about 37 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.

Over the season highs ease from about 28°C in early September to 13°C by late November. The sky is clear or mostly clear about 36% of the time across fall, and the air most often feels dry.

Fall is Honjō's best season of the year to visit on our travel score. For the whole year in context, see Honjō's year-round climate.

Avg daytime high
21°C
2nd-warmest season
Avg overnight low
13°C
Rainfall
455 mm
37 wet days
Avg wind
6 km/h
Travel score
5.5
best season of the year
Months
Sep · Oct · Nov

Temperature in Honjō in Fall

Average highAverage lowShaded bands: 10–90% of days

Over the season highs ease from about 28°C in early September to 13°C by late November.

A typical fall day in Honjō reaches about 21°C and drops to 13°C overnight. The warmest of the three months is September, the coolest November.

10°20°30°SepOctNov

How fall really feels in Honjō

Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

fall sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Honjō weather by month

How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 546.52.39.81.6
Feb / 537.22.510.62.0
Mar13° / 9911.91.511.73.4
Apr18° / 11111.70.212.95.5
May23° / 14°13212.9013.96.2
Jun25° / 18°17316.4014.45.4
Jul29° / 22°19917.8014.24.4
Aug30° / 23°15216.1013.44.2
Sep26° / 20°19916.1012.25.5
Oct21° / 14°18712.8011.16.0
Nov15° / 697.8010.15.1
Dec11° / 476.60.49.62.9

Cloud cover in Fall

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time across fall.

0%25%50%75%100%SepOctNov

Chance of precipitation in Fall

Any precipitation

Honjō gets around 455 mm of rain over 37 wet days across fall. The line is the day-by-day chance of measurable precipitation.

0%20%40%60%SepOctNov

Humidity in Fall

DryComfortableHumidMuggyOppressiveMiserable

Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

0%25%50%75%100%SepOctNov

Wind in Fall

Winds average 6 km/h across fall.

0246810SepOctNov

Sunrise & sunset in Fall

DaylightNight

Daylight runs from about 12 h 48 min in early September to 9 h 42 min by late November. The lit band spans sunrise to sunset each day.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMSepOctNov

Solar energy in Fall

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day across fall, about 3.0 kWh/m².

01234SepOctNov
Planning a trip in fall

Is fall a good time to visit Honjō?

Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.

5.5
Sightseeing
1st-best month of the year
3.1
Beach & pool
2nd-best month of the year

fall is a reasonable time to visit Honjō for sightseeing.

What to pack for Honjō in Fall

From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In fall, Honjō sees daytime highs around 21°C and nights near 13°C. Pack rain gear. Worth having: light clothes and a warm layer. About 37 days see rain.

rain gearlight clothesa warm layer

UV index in Honjō in Fall

LowModerateHighVery highExtreme

Clear-sky midday UV across fall averages around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Honjō peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 16UV 9Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Honjō in Fall

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.

Air quality in Honjō is worst in April — around 26 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 14 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1426 µg/m³Dec 1814 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb21Moderate
Mar25Moderate
Apr26Moderate
May24Moderate
Jun20Moderate
Jul17Moderate
Aug16Moderate
Sep16Moderate
Oct16Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Honjō?

Honjō sits at 36.2°N, 139.2°E, 59 m above sea level, in Japan. The nearest listed city is Ishigami, 4.0 km away.

Topography around Honjō

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Honjō.

Within 3 km, the terrain around Honjō has only modest variations in elevation — a maximum elevation change of 80 m around an average of 55 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 570 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,855 m.

The land around Honjō is covered by artificial surfaces (54%) and cropland (28%) within 3 km, artificial surfaces (43%) and cropland (30%) within 16 km, and trees (64%) and artificial surfaces (20%) within 80 km.

3 km
80 m
16 km
570 m
80 km
2,855 m
treesgrasslandcroplandartificial surfacesbare terrainwater
Fall weather nearby: Ishigami 4.0 km · Sakai-nakajima 6.0 km · Kodamachō-kodamaminami 8.0 km · Isesaki 9.0 km · Fukayachō 9.0 km · Tamamura 10 km · Fujioka 11 km · Yorii 14 km

Japan travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
100 V · 50 / 60 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$35,951
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.2
per 100k, 2023
Road deaths
3.6
per 100k/yr, 2019
Income group
High
World Bank
English
Very low
EF EPI 446
Religion
Shintoism 49%Buddhism 46%other 4%Christianity 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Honjō (36.2378°, 139.1902°, elevation 59 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.