Mombetsu in Fall
In fall (September, October and November), Mombetsu sees average daytime highs around 13°C and overnight lows near 6°C, with 279 mm of precipitation over about 35 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 22°C in early September to 3°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 Mombetsu's 2nd-best season to visit on our travel score. For the whole year in context, see Mombetsu's year-round climate.
- Avg daytime high
- 13°C
- 2nd-warmest season
- Avg overnight low
- 6°C
- Precipitation
- 279 mm
- 35 wet days
- Avg wind
- 12 km/h
- Travel score
- 3.5
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Mombetsu in Fall
Over the season highs ease from about 22°C in early September to 3°C by late November.
A typical fall day in Mombetsu reaches about 13°C and drops to 6°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Mombetsu
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 33 that feel at or below 0°C.
The story in fall is cold — wind chill drags the overnight "feels like" below the raw low.
Mombetsu 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 | -4° / -11° | 64 | 10.3 | 12.2 | 9 | 0.0 |
| Feb | -3° / -11° | 49 | 9.2 | 11.7 | 10.2 | 0.0 |
| Mar | 2° / -6° | 61 | 11.6 | 11.6 | 11.6 | 0.0 |
| Apr | 9° / -0° | 67 | 11.5 | 6.3 | 13.2 | 1.7 |
| May | 15° / 6° | 81 | 11.6 | 1.3 | 14.6 | 4.2 |
| Jun | 18° / 10° | 80 | 11.4 | 0 | 15.3 | 5.4 |
| Jul | 22° / 15° | 110 | 12.1 | 0 | 15 | 6.0 |
| Aug | 23° / 16° | 133 | 13.4 | 0 | 13.8 | 6.1 |
| Sep | 20° / 12° | 121 | 12.3 | 0 | 12.3 | 5.8 |
| Oct | 14° / 6° | 85 | 11 | 0.4 | 10.8 | 4.0 |
| Nov | 6° / -1° | 72 | 11.2 | 5.7 | 9.4 | 0.7 |
| Dec | -1° / -7° | 72 | 9.7 | 10.5 | 8.7 | 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
Mombetsu gets around 279 mm of rain and snow over 35 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 h 06 min in early September to 8 h 54 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 2.9 kWh/m².
Hazard calendar for Mombetsu
In fall, Mombetsu overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Mombetsu sits in the Pacific typhoon belt; the season peaks July–October.
Is fall a good time to visit Mombetsu?
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 Mombetsu.
What to pack for Mombetsu in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Mombetsu sees daytime highs around 13°C and nights near 6°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 35 days see rain.
Sea temperature near Mombetsu in Fall
The nearest coast averages about 12°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 17°C and coldest in February near -1°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 0 | -1 | 0 | 2 | 5 | 10 | 14 | 17 | 17 | 13 | 7 | 3 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 0 | Bracing |
| Feb | -1 | Bracing |
| Mar | 0 | Bracing |
| Apr | 2 | Bracing |
| May | 5 | Bracing |
| Jun | 10 | Bracing |
| Jul | 14 | Bracing |
| Aug | 17 | Cool |
| Sep | 17 | Cool |
| Oct | 13 | Bracing |
| Nov | 7 | Bracing |
| Dec | 3 | Bracing |
UV index in Mombetsu 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 Mombetsu peaks around August 14 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 | 7 | 7 | 7 | 8 | 6 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | High | High | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 3 | Moderate |
| Apr | 5 | High |
| May | 7 | High |
| Jun | 7 | High |
| Jul | 7 | High |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Mombetsu?
Mombetsu sits at 44.4°N, 143.4°E, 16 m above sea level, in Japan. The nearest listed city is Engaru, 37 km away.
Topography around Mombetsu
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mombetsu.
Within 3 km, the terrain around Mombetsu has significant variations in elevation — a maximum elevation change of 340 m around an average of 40 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 420 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,956 m.
The land around Mombetsu is covered by water (41%), trees (28%) and artificial surfaces (22%) within 3 km, water (50%) and trees (37%) within 16 km, and trees (58%) and water (32%) 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 Mombetsu (44.3525°, 143.3525°, elevation 16 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.