Nanto-shi in Fall
In fall (September, October and November), Nanto-shi sees average daytime highs around 19°C and overnight lows near 10°C, with 711 mm of precipitation over about 54 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 27°C in early September to 10°C by late November. The sky is clear or mostly clear about 18% of the time across fall, and the air most often feels dry.
Fall is Nanto-shi's 2nd-best season to visit on our travel score. For the whole year in context, see Nanto-shi's year-round climate.
- Avg daytime high
- 19°C
- 2nd-warmest season
- Avg overnight low
- 10°C
- Precipitation
- 711 mm
- 54 wet days
- Avg wind
- 6 km/h
- Travel score
- 4.3
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Nanto-shi in Fall
Over the season highs ease from about 27°C in early September to 10°C by late November.
A typical fall day in Nanto-shi reaches about 19°C and drops to 10°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Nanto-shi
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 7 that feel at or below 0°C.
The story in fall is cold — wind chill drags the overnight "feels like" below the raw low.
Nanto-shi 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 | 3° / -4° | 230 | 24.2 | 22.1 | 9.8 | 0.0 |
| Feb | 4° / -4° | 179 | 20.2 | 17.6 | 10.6 | 0.0 |
| Mar | 8° / -1° | 207 | 20.2 | 12.9 | 11.7 | 1.2 |
| Apr | 15° / 4° | 175 | 15.8 | 3.2 | 12.9 | 3.9 |
| May | 21° / 10° | 186 | 15.4 | 0.1 | 13.9 | 5.6 |
| Jun | 24° / 16° | 247 | 18.1 | 0 | 14.4 | 5.3 |
| Jul | 28° / 20° | 332 | 21.7 | 0 | 14.2 | 4.4 |
| Aug | 29° / 21° | 249 | 20.4 | 0 | 13.4 | 4.3 |
| Sep | 24° / 16° | 289 | 18.5 | 0 | 12.2 | 5.2 |
| Oct | 19° / 10° | 223 | 17 | 0.2 | 11.1 | 5.0 |
| Nov | 13° / 4° | 199 | 18.4 | 4.3 | 10.1 | 2.7 |
| Dec | 6° / -2° | 237 | 22.8 | 16.3 | 9.5 | 0.4 |
Cloud cover in Fall
The sky is clear or mostly clear about 18% of the time across fall.
Chance of precipitation in Fall
Nanto-shi gets around 711 mm of rain and snow over 54 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 6 km/h across fall.
Sunrise & sunset in Fall
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.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.3 kWh/m².
Hazard calendar for Nanto-shi
In fall, Nanto-shi overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Nanto-shi sits in the Pacific typhoon belt; the season peaks July–October.
Is fall a good time to visit Nanto-shi?
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 reasonable time to visit Nanto-shi for sightseeing.
What to pack for Nanto-shi in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Nanto-shi sees daytime highs around 19°C and nights near 10°C. Pack rain gear. Worth having: light clothes and a warm layer. About 54 days see rain.
Sea temperature near Nanto-shi in Fall
The nearest coast averages about 22°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 27°C and coldest in March near 11°C.
It's comfortable for a long swim from Jun 17 to Nov 3 — about 4.6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 13 | 11 | 11 | 12 | 16 | 20 | 24 | 27 | 25 | 22 | 19 | 16 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Warm | Warm | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 13 | Bracing |
| Feb | 11 | Bracing |
| Mar | 11 | Bracing |
| Apr | 12 | Bracing |
| May | 16 | Cool |
| Jun | 20 | Cool |
| Jul | 24 | Refreshing |
| Aug | 27 | Warm |
| Sep | 25 | Warm |
| Oct | 22 | Refreshing |
| Nov | 19 | Cool |
| Dec | 16 | Cool |
UV index in Nanto-shi in Fall
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 Nanto-shi peaks around July 20 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 4 | 5 | 7 | 9 | 10 | 10 | 10 | 9 | 6 | 3 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 9 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 10 | Very high |
| Sep | 9 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Air quality in Nanto-shi 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 Nanto-shi is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 9 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) | 10 | 13 | 20 | 21 | 20 | 18 | 14 | 12 | 10 | 10 | 10 | 9 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 13 | Moderate |
| Mar | 20 | Moderate |
| Apr | 21 | Moderate |
| May | 20 | Moderate |
| Jun | 18 | Moderate |
| Jul | 14 | Moderate |
| Aug | 12 | Good |
| Sep | 10 | Good |
| Oct | 10 | Good |
| Nov | 10 | Good |
| Dec | 9 | Good |
Where is Nanto-shi?
Nanto-shi sits at 36.6°N, 136.9°E, 70 m above sea level, in Japan. The nearest listed city is Fukumitsu, 4.0 km away.
Topography around Nanto-shi
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Nanto-shi.
Within 3 km, the terrain around Nanto-shi has only modest variations in elevation — a maximum elevation change of 62 m around an average of 72 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,138 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,132 m.
The land around Nanto-shi is covered by cropland (72%) and artificial surfaces (20%) within 3 km, trees (63%) and cropland (25%) within 16 km, and trees (57%) and water (30%) 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 Nanto-shi (36.5692°, 136.9116°, elevation 70 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.