Yawatahama in Summer
In summer (June, July and August), Yawatahama sees average daytime highs around 30°C and overnight lows near 22°C, with 605 mm of rain over about 43 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Over the season highs climb from about 26°C in early June to 31°C by late August. The sky is clear or mostly clear about 22% of the time across summer, and the air most often feels oppressive.
Summer is Yawatahama's 3rd-best season to visit on our travel score. For the whole year in context, see Yawatahama's year-round climate.
- Avg daytime high
- 30°C
- warmest season of the year
- Avg overnight low
- 22°C
- Rainfall
- 605 mm
- 43 wet days
- Avg wind
- 8 km/h
- Travel score
- 4.4
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Yawatahama in Summer
Over the season highs climb from about 26°C in early June to 31°C by late August.
A typical summer day in Yawatahama reaches about 30°C and drops to 22°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Yawatahama
Once humidity and wind are folded in, summer brings about 56 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Yawatahama weather by month
How the three summer months (June, July and August) 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° / 3° | 63 | 10 | 1.4 | 10 | 2.2 |
| Feb | 11° / 3° | 74 | 9.8 | 1.3 | 10.8 | 2.7 |
| Mar | 15° / 6° | 113 | 11.9 | 0.2 | 11.7 | 4.2 |
| Apr | 20° / 11° | 125 | 10.6 | 0 | 12.8 | 6.1 |
| May | 24° / 15° | 146 | 10.8 | 0 | 13.7 | 6.7 |
| Jun | 27° / 19° | 263 | 14.9 | 0 | 14.2 | 5.5 |
| Jul | 30° / 24° | 210 | 14.9 | 0 | 14 | 4.1 |
| Aug | 32° / 24° | 131 | 12.7 | 0 | 13.2 | 3.7 |
| Sep | 29° / 21° | 172 | 12.7 | 0 | 12.2 | 5.3 |
| Oct | 23° / 15° | 138 | 8.4 | 0 | 11.2 | 7.2 |
| Nov | 18° / 9° | 81 | 8.5 | 0 | 10.3 | 6.0 |
| Dec | 12° / 5° | 78 | 10.3 | 0.6 | 9.8 | 3.4 |
Cloud cover in Summer
The sky is clear or mostly clear about 22% of the time across summer.
Chance of precipitation in Summer
Yawatahama gets around 605 mm of rain over 43 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 hours in early June to 12 h 48 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.0 kWh/m².
Hazard calendar for Yawatahama
In summer, Yawatahama overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Yawatahama sits in the Pacific typhoon belt; the season peaks July–October.
Is summer a good time to visit Yawatahama?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Yawatahama for sightseeing.
What to pack for Yawatahama in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Yawatahama sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 43 days see rain.
Sea temperature near Yawatahama in Summer
The nearest coast averages about 24°C across summer — 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 26°C and coldest in February near 15°C.
It's comfortable for a long swim from Jun 3 to Nov 25 — about 5.8 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 16 | 15 | 15 | 16 | 18 | 21 | 24 | 26 | 25 | 23 | 21 | 18 |
| Comfort | Cool | Bracing | Bracing | Cool | Cool | Refreshing | Warm | Warm | Warm | Refreshing | Refreshing | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 16 | Cool |
| Feb | 15 | Bracing |
| Mar | 15 | Bracing |
| Apr | 16 | Cool |
| May | 18 | Cool |
| Jun | 21 | Refreshing |
| Jul | 24 | Warm |
| Aug | 26 | Warm |
| Sep | 25 | Warm |
| Oct | 23 | Refreshing |
| Nov | 21 | Refreshing |
| Dec | 18 | Cool |
UV index in Yawatahama in Summer
Clear-sky midday UV across summer averages around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Yawatahama peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 | 8 | 10 | 10 | 9 | 10 | 7 | 4 | 3 |
| Level | Moderate | Moderate | High | Very high | Very high | Extreme | Very high | 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 | 8 | Very high |
| Jun | 10 | Extreme |
| Jul | 10 | Very high |
| Aug | 9 | Very high |
| Sep | 10 | Very high |
| Oct | 7 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Yawatahama in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Yawatahama is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 11 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) | 14 | 17 | 21 | 23 | 21 | 19 | 15 | 15 | 12 | 11 | 12 | 11 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 17 | Moderate |
| Mar | 21 | Moderate |
| Apr | 23 | Moderate |
| May | 21 | Moderate |
| Jun | 19 | Moderate |
| Jul | 15 | Moderate |
| Aug | 15 | Moderate |
| Sep | 12 | Moderate |
| Oct | 11 | Good |
| Nov | 12 | Good |
| Dec | 11 | Good |
Where is Yawatahama?
Yawatahama sits at 33.5°N, 132.4°E, 9 m above sea level, in Japan. The nearest listed city is Ōzu, 12 km away.
Topography around Yawatahama
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Yawatahama.
Within 3 km, the terrain around Yawatahama has significant variations in elevation — a maximum elevation change of 566 m around an average of 147 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 812 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,895 m.
The land around Yawatahama is covered by trees (82%) within 3 km, trees (59%) and water (35%) within 16 km, and water (51%) and trees (45%) 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 Yawatahama (33.4574°, 132.4328°, 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.