Ōmamachō-ōmama in Fall
In fall (September, October and November), Ōmamachō-ōmama sees average daytime highs around 18°C and overnight lows near 11°C, with 438 mm of precipitation over about 38 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 26°C in early September to 11°C by late November. The sky is clear or mostly clear about 33% of the time across fall, and the air most often feels dry.
Fall is Ōmamachō-ōmama's best season of the year to visit on our travel score. For the whole year in context, see Ōmamachō-ōmama's year-round climate.
- Avg daytime high
- 18°C
- 2nd-warmest season
- Avg overnight low
- 11°C
- Precipitation
- 438 mm
- 38 wet days
- Avg wind
- 5 km/h
- Travel score
- 4.9
- best season of the year
- Months
- Sep · Oct · Nov
Temperature in Ōmamachō-ōmama in Fall
Over the season highs ease from about 26°C in early September to 11°C by late November.
A typical fall day in Ōmamachō-ōmama reaches about 18°C and drops to 11°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Ōmamachō-ōmama
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.
Ōmamachō-ōmama 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 | 5° / -2° | 51 | 7.2 | 5.5 | 9.8 | 0.1 |
| Feb | 6° / -2° | 51 | 8.3 | 5.9 | 10.6 | 0.4 |
| Mar | 10° / 1° | 99 | 12.4 | 5.4 | 11.7 | 2.0 |
| Apr | 15° / 6° | 114 | 12.7 | 1.3 | 12.9 | 4.4 |
| May | 20° / 11° | 136 | 14.3 | 0 | 13.9 | 5.6 |
| Jun | 23° / 16° | 173 | 18.4 | 0 | 14.4 | 5.1 |
| Jul | 27° / 20° | 217 | 21.3 | 0 | 14.2 | 4.7 |
| Aug | 28° / 21° | 174 | 20.2 | 0 | 13.4 | 4.7 |
| Sep | 24° / 17° | 204 | 17.2 | 0 | 12.2 | 5.4 |
| Oct | 18° / 11° | 168 | 13.4 | 0 | 11.1 | 5.4 |
| Nov | 13° / 5° | 66 | 7.8 | 0.3 | 10.1 | 3.9 |
| Dec | 8° / 0° | 45 | 7 | 3.3 | 9.6 | 1.3 |
Cloud cover in Fall
The sky is clear or mostly clear about 33% of the time across fall.
Chance of precipitation in Fall
Ōmamachō-ōmama gets around 438 mm of rain and snow over 38 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 5 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 3.1 kWh/m².
Hazard calendar for Ōmamachō-ōmama
In fall, Ōmamachō-ōmama overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Ōmamachō-ōmama's rainy season runs March–October, when most of the year's rain falls.
Is fall a good time to visit Ōmamachō-ōmama?
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 Ōmamachō-ōmama for sightseeing.
What to pack for Ōmamachō-ōmama in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Ōmamachō-ōmama sees daytime highs around 18°C and nights near 11°C. Pack rain gear. Worth having: light clothes and a warm layer. About 38 days see rain.
UV index in Ōmamachō-ōmama 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 Ōmamachō-ōmama 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 4 | 5 | 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 | 5 | 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 Ōmamachō-ōmama 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 Ōmamachō-ōmama is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.3× 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 | 19 | 21 | 20 | 16 | 14 | 13 | 11 | 11 | 10 | 9 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 13 | Moderate |
| Mar | 19 | Moderate |
| Apr | 21 | Moderate |
| May | 20 | Moderate |
| Jun | 16 | Moderate |
| Jul | 14 | Moderate |
| Aug | 13 | Moderate |
| Sep | 11 | Good |
| Oct | 11 | Good |
| Nov | 10 | Good |
| Dec | 9 | Good |
Where is Ōmamachō-ōmama?
Ōmamachō-ōmama sits at 36.4°N, 139.3°E, 182 m above sea level, in Japan. The nearest listed city is Midori, 2.0 km away.
Topography around Ōmamachō-ōmama
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ōmamachō-ōmama.
Within 3 km, the terrain around Ōmamachō-ōmama has significant variations in elevation — a maximum elevation change of 321 m around an average of 210 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,779 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,552 m.
The land around Ōmamachō-ōmama is covered by artificial surfaces (42%) and trees (41%) within 3 km, trees (56%) and artificial surfaces (25%) within 16 km, and trees (67%) 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 Ōmamachō-ōmama (36.4318°, 139.2753°, elevation 182 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.