Shirahama in Fall
In fall (September, October and November), Shirahama sees average daytime highs around 22°C and overnight lows near 18°C, with 559 mm of rain over about 33 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 15°C by late November. The sky is clear or mostly clear about 41% of the time across fall, and the air most often feels dry.
Fall is Shirahama's best season of the year to visit on our travel score. For the whole year in context, see Shirahama's year-round climate.
- Avg daytime high
- 22°C
- 2nd-warmest season
- Avg overnight low
- 18°C
- Rainfall
- 559 mm
- 33 wet days
- Avg wind
- 18 km/h
- Travel score
- 6.2
- best season of the year
- Months
- Sep · Oct · Nov
Temperature in Shirahama in Fall
Over the season highs ease from about 27°C in early September to 15°C by late November.
A typical fall day in Shirahama reaches about 22°C and drops to 18°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Shirahama
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.
Shirahama 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 | 10° / 6° | 95 | 11.6 | 0.5 | 10 | 2.3 |
| Feb | 11° / 6° | 104 | 11.1 | 0.5 | 10.7 | 2.4 |
| Mar | 13° / 9° | 151 | 12.3 | 0 | 11.7 | 3.7 |
| Apr | 17° / 13° | 158 | 11.1 | 0 | 12.8 | 5.4 |
| May | 21° / 17° | 177 | 11 | 0 | 13.7 | 6.2 |
| Jun | 24° / 21° | 293 | 15.4 | 0 | 14.2 | 5.6 |
| Jul | 27° / 24° | 246 | 14.4 | 0 | 14 | 5.7 |
| Aug | 28° / 25° | 146 | 13.3 | 0 | 13.3 | 5.6 |
| Sep | 26° / 23° | 215 | 13.3 | 0 | 12.2 | 6.1 |
| Oct | 22° / 18° | 217 | 11.2 | 0 | 11.2 | 6.6 |
| Nov | 17° / 14° | 127 | 8.8 | 0 | 10.3 | 5.8 |
| Dec | 13° / 9° | 97 | 10.1 | 0.1 | 9.8 | 3.6 |
Cloud cover in Fall
The sky is clear or mostly clear about 41% of the time across fall.
Chance of precipitation in Fall
Shirahama gets around 559 mm of rain over 33 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 18 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 42 min in early September to 9 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 3.6 kWh/m².
Hazard calendar for Shirahama
In fall, Shirahama overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Shirahama sits in the Pacific typhoon belt; the season peaks July–October.
Is fall a good time to visit Shirahama?
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 Shirahama for sightseeing.
What to pack for Shirahama in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Shirahama sees daytime highs around 22°C and nights near 18°C. Worth packing: light clothes and rain gear. About 33 days see rain.
Sea temperature near Shirahama in Fall
The nearest coast averages about 25°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 28°C and coldest in February near 17°C.
It's comfortable for a long swim from May 4 to Dec 22 — about 7.7 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 18 | 17 | 18 | 19 | 21 | 23 | 26 | 28 | 27 | 25 | 23 | 20 |
| Comfort | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Warm | Warm | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 18 | Cool |
| Feb | 17 | Cool |
| Mar | 18 | Cool |
| Apr | 19 | Cool |
| May | 21 | Refreshing |
| Jun | 23 | Refreshing |
| Jul | 26 | Warm |
| Aug | 28 | Warm |
| Sep | 27 | Warm |
| Oct | 25 | Warm |
| Nov | 23 | Refreshing |
| Dec | 20 | Refreshing |
UV index in Shirahama in Fall
Clear-sky midday UV across fall averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Shirahama peaks around July 11 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 4 | 6 | 7 | 9 | 10 | 11 | 9 | 10 | 6 | 4 | 3 |
| Level | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 6 | High |
| Apr | 7 | Very high |
| May | 9 | Very high |
| Jun | 10 | Extreme |
| Jul | 11 | Extreme |
| Aug | 9 | Very high |
| Sep | 10 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Shirahama 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 Shirahama is worst in April — around 19 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 10 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 | 15 | 19 | 19 | 17 | 14 | 10 | 10 | 10 | 10 | 11 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 15 | Moderate |
| Mar | 19 | Moderate |
| Apr | 19 | Moderate |
| May | 17 | Moderate |
| Jun | 14 | Moderate |
| Jul | 10 | Good |
| Aug | 10 | Good |
| Sep | 10 | Good |
| Oct | 10 | Good |
| Nov | 11 | Good |
| Dec | 10 | Good |
Where is Shirahama?
Shirahama sits at 33.7°N, 135.3°E, 13 m above sea level, in Japan. The nearest listed city is Tanabe, 6.0 km away.
Topography around Shirahama
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Shirahama.
Within 3 km, the terrain around Shirahama has only modest variations in elevation — a maximum elevation change of 148 m around an average of 22 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 789 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,877 m.
The land around Shirahama is covered by water (57%) and trees (26%) within 3 km, water (53%) and trees (41%) within 16 km, and water (54%) and trees (43%) 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 Shirahama (33.6833°, 135.35°, elevation 13 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.