Honchō in Fall
In fall (September, October and November), Honchō sees average daytime highs around 15°C and overnight lows near 9°C, with 356 mm of precipitation 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 23°C in early September to 5°C by late November. The sky is clear or mostly clear about 27% of the time across fall, and the air most often feels dry.
Fall is Honchō's 2nd-best season to visit on our travel score. For the whole year in context, see Honchō's year-round climate.
- Avg daytime high
- 15°C
- 2nd-warmest season
- Avg overnight low
- 9°C
- Precipitation
- 356 mm
- 37 wet days
- Avg wind
- 12 km/h
- Travel score
- 3.8
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Honchō in Fall
Over the season highs ease from about 23°C in early September to 5°C by late November.
A typical fall day in Honchō reaches about 15°C and drops to 9°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Honchō
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 17 that feel at or below 0°C.
The story in fall is cold — wind chill drags the overnight "feels like" below the raw low.
Honchō 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.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | -1° / -5° | 52 | 7.8 | 9.1 | 9.3 | 0.0 |
| Feb | -0° / -6° | 49 | 7.1 | 7.2 | 10.3 | 0.0 |
| Mar | 3° / -3° | 64 | 10.1 | 7.7 | 11.7 | 0.0 |
| Apr | 9° / 3° | 73 | 9.8 | 2.3 | 13.1 | 1.9 |
| May | 14° / 8° | 92 | 11.1 | 0.1 | 14.3 | 4.0 |
| Jun | 18° / 12° | 86 | 9.7 | 0 | 15 | 5.5 |
| Jul | 21° / 16° | 128 | 11.6 | 0 | 14.7 | 6.0 |
| Aug | 23° / 19° | 167 | 12.7 | 0 | 13.7 | 6.2 |
| Sep | 21° / 16° | 170 | 13.4 | 0 | 12.3 | 5.8 |
| Oct | 15° / 9° | 104 | 11.9 | 0.1 | 10.9 | 4.4 |
| Nov | 8° / 3° | 82 | 11.6 | 2.6 | 9.6 | 1.3 |
| Dec | 2° / -3° | 68 | 9.6 | 9.1 | 9 | 0.0 |
Cloud cover in Fall
The sky is clear or mostly clear about 27% of the time across fall.
Chance of precipitation in Fall
Honchō gets around 356 mm of rain and snow over 37 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 12 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 13 hours in early September to 9 h 12 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.0 kWh/m².
Hazard calendar for Honchō
In fall, Honchō overlaps its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
Honchō sits in the Pacific typhoon belt; the season peaks July–October.
Honchō's rainy season runs May–November, when most of the year's rain falls.
Is fall a good time to visit Honchō?
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.
fall is a weaker month for outdoor sightseeing in Honchō.
What to pack for Honchō in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Honchō sees daytime highs around 15°C and nights near 9°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 37 days see rain.
Sea temperature near Honchō in Fall
The nearest coast averages about 16°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 26 km away) is warmest in August at about 21°C and coldest in February near 4°C.
It's comfortable for a long swim from Aug 7 to Sep 16 — about 1.3 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 7 | 4 | 4 | 6 | 9 | 14 | 18 | 21 | 20 | 17 | 12 | 9 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 7 | Bracing |
| Feb | 4 | Bracing |
| Mar | 4 | Bracing |
| Apr | 6 | Bracing |
| May | 9 | Bracing |
| Jun | 14 | Bracing |
| Jul | 18 | Cool |
| Aug | 21 | Refreshing |
| Sep | 20 | Refreshing |
| Oct | 17 | Cool |
| Nov | 12 | Bracing |
| Dec | 9 | Bracing |
UV index in Honchō in Fall
Clear-sky midday UV across fall averages around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Honchō peaks around August 18 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 5 | 8 | 7 | 5 | 9 | 6 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | Very high | High | Moderate | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 3 | Moderate |
| Apr | 5 | High |
| May | 8 | Very high |
| Jun | 7 | High |
| Jul | 5 | Moderate |
| Aug | 9 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Honchō in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Honchō is worst in April — around 17 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (December, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 11 | 16 | 17 | 14 | 9 | 8 | 8 | 8 | 9 | 8 | 6 |
| Level | Good | Good | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 11 | Good |
| Mar | 16 | Moderate |
| Apr | 17 | Moderate |
| May | 14 | Moderate |
| Jun | 9 | Good |
| Jul | 8 | Good |
| Aug | 8 | Good |
| Sep | 8 | Good |
| Oct | 9 | Good |
| Nov | 8 | Good |
| Dec | 6 | Good |
Where is Honchō?
Honchō sits at 41.9°N, 140.7°E, 72 m above sea level, in Japan. The nearest listed city is Kamiiso, 9.0 km away.
Topography around Honchō
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Honchō.
Within 3 km, the terrain around Honchō has significant variations in elevation — a maximum elevation change of 527 m around an average of 110 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,164 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,258 m.
The land around Honchō is covered by trees (39%) and cropland (35%) within 3 km, trees (68%) within 16 km, and water (62%) and trees (35%) within 80 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
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 Honchō (41.8944°, 140.6939°, elevation 72 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.