Tanuma in Fall
In fall (September, October and November), Tanuma sees average daytime highs around 21°C and overnight lows near 13°C, with 510 mm of rain over about 39 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 34% of the time across fall, and the air most often feels dry.
Fall is Tanuma's best season of the year to visit on our travel score. For the whole year in context, see Tanuma's year-round climate.
- Avg daytime high
- 21°C
- 2nd-warmest season
- Avg overnight low
- 13°C
- Rainfall
- 510 mm
- 39 wet days
- Avg wind
- 6 km/h
- Travel score
- 5.4
- best season of the year
- Months
- Sep · Oct · Nov
Temperature in Tanuma in Fall
Over the season highs ease from about 28°C in early September to 13°C by late November.
A typical fall day in Tanuma reaches about 21°C and drops to 13°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Tanuma
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.
fall sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Tanuma 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 | 8° / -0° | 55 | 6.1 | 2 | 9.8 | 1.6 |
| Feb | 9° / 0° | 53 | 6.9 | 2.3 | 10.6 | 2.0 |
| Mar | 13° / 3° | 104 | 11.8 | 1.5 | 11.7 | 3.5 |
| Apr | 18° / 8° | 121 | 12.2 | 0.2 | 12.9 | 5.4 |
| May | 23° / 14° | 153 | 13.7 | 0 | 13.9 | 6.1 |
| Jun | 25° / 18° | 187 | 16.7 | 0 | 14.4 | 5.3 |
| Jul | 29° / 22° | 220 | 18.8 | 0 | 14.2 | 4.3 |
| Aug | 30° / 23° | 171 | 16.4 | 0 | 13.4 | 4.1 |
| Sep | 26° / 20° | 221 | 16.7 | 0 | 12.2 | 5.3 |
| Oct | 21° / 14° | 206 | 13.7 | 0 | 11.1 | 5.9 |
| Nov | 15° / 7° | 83 | 8.6 | 0 | 10.1 | 5.0 |
| Dec | 10° / 2° | 51 | 6.7 | 0.4 | 9.6 | 2.8 |
Cloud cover in Fall
The sky is clear or mostly clear about 34% of the time across fall.
Chance of precipitation in Fall
Tanuma gets around 510 mm of rain over 39 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 3.0 kWh/m².
Hazard calendar for Tanuma
In fall, Tanuma overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Tanuma's rainy season runs March–October, when most of the year's rain falls.
Is fall a good time to visit Tanuma?
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 Tanuma for sightseeing.
What to pack for Tanuma in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Tanuma sees daytime highs around 21°C and nights near 13°C. Pack rain gear. Worth having: light clothes and a warm layer. About 39 days see rain.
UV index in Tanuma 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 Tanuma peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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) | 2 | 4 | 4 | 7 | 8 | 9 | 10 | 9 | 8 | 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 | 2 | Moderate |
| Feb | 4 | Moderate |
| Mar | 4 | Moderate |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 10 | Very high |
| Aug | 9 | Very high |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Air quality in Tanuma 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 Tanuma 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 15 | 21 | 25 | 26 | 24 | 20 | 17 | 16 | 16 | 16 | 16 | 14 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 15 | Moderate |
| Feb | 21 | Moderate |
| Mar | 25 | Moderate |
| Apr | 26 | Moderate |
| May | 24 | Moderate |
| Jun | 20 | Moderate |
| Jul | 17 | Moderate |
| Aug | 16 | Moderate |
| Sep | 16 | Moderate |
| Oct | 16 | Moderate |
| Nov | 16 | Moderate |
| Dec | 14 | Moderate |
Where is Tanuma?
Tanuma sits at 36.4°N, 139.6°E, 66 m above sea level, in Japan. The nearest listed city is Sano, 6.0 km away.
Topography around Tanuma
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tanuma.
Within 3 km, the terrain around Tanuma has significant variations in elevation — a maximum elevation change of 278 m around an average of 91 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 688 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,552 m.
The land around Tanuma is covered by trees (41%) and artificial surfaces (32%) within 3 km, trees (47%), cropland (23%) and artificial surfaces (23%) within 16 km, and trees (57%) and artificial surfaces (21%) 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 Tanuma (36.3667°, 139.5833°, elevation 66 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.