Katsuren-haebaru in Fall
In fall (September, October and November), Katsuren-haebaru sees average daytime highs around 26°C and overnight lows near 24°C, with 441 mm of rain over about 36 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs ease from about 28°C in early September to 22°C by late November. The sky is clear or mostly clear about 38% of the time across fall, and the air most often feels oppressive.
Fall is Katsuren-haebaru's best season of the year to visit on our travel score. For the whole year in context, see Katsuren-haebaru's year-round climate.
- Avg daytime high
- 26°C
- 2nd-warmest season
- Avg overnight low
- 24°C
- Rainfall
- 441 mm
- 36 wet days
- Avg wind
- 26 km/h
- Travel score
- 6.3
- best season of the year
- Months
- Sep · Oct · Nov
Temperature in Katsuren-haebaru in Fall
Over the season highs ease from about 28°C in early September to 22°C by late November.
A typical fall day in Katsuren-haebaru reaches about 26°C and drops to 24°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Katsuren-haebaru
Once humidity and wind are folded in, fall brings about 13 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Katsuren-haebaru 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 | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 19° / 17° | 103 | 11.7 | 10.5 | 5.7 |
| Feb | 19° / 17° | 96 | 11.4 | 11.1 | 5.6 |
| Mar | 20° / 18° | 128 | 12.7 | 11.8 | 5.9 |
| Apr | 22° / 20° | 150 | 12.7 | 12.6 | 6.1 |
| May | 24° / 23° | 207 | 13.8 | 13.3 | 6.1 |
| Jun | 27° / 26° | 218 | 15.8 | 13.6 | 5.4 |
| Jul | 29° / 27° | 126 | 11.4 | 13.5 | 5.5 |
| Aug | 29° / 27° | 178 | 14.8 | 12.9 | 5.1 |
| Sep | 28° / 27° | 199 | 14.2 | 12.2 | 5.7 |
| Oct | 26° / 25° | 141 | 11.6 | 11.4 | 6.5 |
| Nov | 24° / 22° | 101 | 10.6 | 10.7 | 6.7 |
| Dec | 21° / 19° | 113 | 11.2 | 10.4 | 6.1 |
Cloud cover in Fall
The sky is clear or mostly clear about 38% of the time across fall.
Chance of precipitation in Fall
Katsuren-haebaru gets around 441 mm of rain over 36 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 26 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 30 min in early September to 10 h 30 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 4.1 kWh/m².
Hazard calendar for Katsuren-haebaru
In fall, Katsuren-haebaru overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Katsuren-haebaru sits in the Pacific typhoon belt; the season peaks July–October.
Is fall a good time to visit Katsuren-haebaru?
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 Katsuren-haebaru for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Katsuren-haebaru in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Katsuren-haebaru sees daytime highs around 26°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection and a windbreaker. About 36 days see rain.
Sea temperature near Katsuren-haebaru in Fall
The nearest coast averages about 27°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 29°C and coldest in February near 22°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 22 | 22 | 22 | 23 | 25 | 27 | 29 | 29 | 28 | 27 | 25 | 24 |
| Comfort | Refreshing | Refreshing | Refreshing | Refreshing | Warm | Warm | Tropical | Tropical | Tropical | Warm | Warm | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 22 | Refreshing |
| Feb | 22 | Refreshing |
| Mar | 22 | Refreshing |
| Apr | 23 | Refreshing |
| May | 25 | Warm |
| Jun | 27 | Warm |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 28 | Tropical |
| Oct | 27 | Warm |
| Nov | 25 | Warm |
| Dec | 24 | Refreshing |
UV index in Katsuren-haebaru in Fall
Clear-sky midday UV across fall averages around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Katsuren-haebaru peaks around July 11 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 5 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 5 | 7 | 9 | 8 | 10 | 12 | 12 | 11 | 11 | 8 | 7 | 5 |
| Level | High | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 5 | High |
| Feb | 7 | Very high |
| Mar | 9 | Very high |
| Apr | 8 | Very high |
| May | 10 | Very high |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 11 | Extreme |
| Oct | 8 | Very high |
| Nov | 7 | High |
| Dec | 5 | Moderate |
Air quality in Katsuren-haebaru 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 Katsuren-haebaru is worst in March — around 17 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (July, 8 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) | 12 | 14 | 17 | 16 | 13 | 9 | 8 | 10 | 9 | 9 | 10 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 14 | Moderate |
| Mar | 17 | Moderate |
| Apr | 16 | Moderate |
| May | 13 | Moderate |
| Jun | 9 | Good |
| Jul | 8 | Good |
| Aug | 10 | Good |
| Sep | 9 | Good |
| Oct | 9 | Good |
| Nov | 10 | Good |
| Dec | 10 | Good |
Where is Katsuren-haebaru?
Katsuren-haebaru sits at 26.3°N, 127.9°E, 9 m above sea level, in Japan. The nearest listed city is Gushikawa, 3.0 km away.
Topography around Katsuren-haebaru
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Katsuren-haebaru.
Within 3 km, the terrain around Katsuren-haebaru has only modest variations in elevation — a maximum elevation change of 97 m around an average of 14 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 358 m; within 80 km, significant variations in elevation — a maximum elevation change of 491 m.
The land around Katsuren-haebaru is covered by water (47%), artificial surfaces (24%) and trees (22%) within 3 km, water (64%) within 16 km, and water (91%) 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 Katsuren-haebaru (26.3329°, 127.874°, elevation 9 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.