Kamogawa in Summer
In summer (June, July and August), Kamogawa sees average daytime highs around 24°C and overnight lows near 22°C, with 471 mm of rain over about 35 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Over the season highs climb from about 21°C in early June to 26°C by late August. The sky is clear or mostly clear about 25% of the time across summer, and the air most often feels oppressive.
Summer is Kamogawa's best season of the year to visit on our travel score. For the whole year in context, see Kamogawa's year-round climate.
- Avg daytime high
- 24°C
- warmest season of the year
- Avg overnight low
- 22°C
- Rainfall
- 471 mm
- 35 wet days
- Avg wind
- 19 km/h
- Travel score
- 6.3
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Kamogawa in Summer
Over the season highs climb from about 21°C in early June to 26°C by late August.
A typical summer day in Kamogawa reaches about 24°C and drops to 22°C overnight. The warmest of the three months is August, the coolest June.
Kamogawa 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 | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 11° / 7° | 104 | 10 | 9.9 | 2.6 |
| Feb | 11° / 7° | 104 | 10.7 | 10.7 | 2.5 |
| Mar | 13° / 9° | 176 | 14.9 | 11.7 | 3.3 |
| Apr | 16° / 13° | 143 | 12.1 | 12.9 | 4.8 |
| May | 19° / 17° | 158 | 11.5 | 13.8 | 5.9 |
| Jun | 22° / 20° | 220 | 13.7 | 14.3 | 5.7 |
| Jul | 25° / 23° | 149 | 11.5 | 14.1 | 6.5 |
| Aug | 26° / 25° | 103 | 9.5 | 13.3 | 6.7 |
| Sep | 25° / 23° | 211 | 14.6 | 12.2 | 6.0 |
| Oct | 21° / 18° | 253 | 14.5 | 11.1 | 5.9 |
| Nov | 17° / 14° | 160 | 13.4 | 10.2 | 5.2 |
| Dec | 13° / 9° | 103 | 11 | 9.7 | 3.8 |
Cloud cover in Summer
The sky is clear or mostly clear about 25% of the time across summer.
Chance of precipitation in Summer
Kamogawa gets around 471 mm of rain over 35 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 19 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 12 min 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 5.3 kWh/m².
Hazard calendar for Kamogawa
In summer, Kamogawa overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Kamogawa sits in the Pacific typhoon belt; the season peaks July–October.
Is summer a good time to visit Kamogawa?
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 Kamogawa for sightseeing.
What to pack for Kamogawa in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Kamogawa sees daytime highs around 24°C and nights near 22°C. Pack rain gear. Worth having: light clothes, sun protection and a windbreaker. About 35 days see rain.
Sea temperature near Kamogawa 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 16°C.
It's comfortable for a long swim from May 26 to Dec 3 — about 6.3 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 17 | 16 | 16 | 17 | 19 | 22 | 24 | 26 | 26 | 23 | 21 | 19 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Refreshing | Refreshing | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 17 | Cool |
| Feb | 16 | Cool |
| Mar | 16 | Cool |
| Apr | 17 | Cool |
| May | 19 | Cool |
| Jun | 22 | Refreshing |
| Jul | 24 | Refreshing |
| Aug | 26 | Warm |
| Sep | 26 | Warm |
| Oct | 23 | Refreshing |
| Nov | 21 | Refreshing |
| Dec | 19 | Cool |
UV index in Kamogawa 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 Kamogawa peaks around August 10 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 | 10 | 8 | 6 | 4 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Very high | Extreme | 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 | 10 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 2 | Moderate |
Air quality in Kamogawa 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 Kamogawa is worst in April — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (September, 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 | 22 | 21 | 16 | 12 | 11 | 11 | 14 | 14 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 17 | Moderate |
| Mar | 21 | Moderate |
| Apr | 22 | Moderate |
| May | 21 | Moderate |
| Jun | 16 | Moderate |
| Jul | 12 | Good |
| Aug | 11 | Good |
| Sep | 11 | Good |
| Oct | 14 | Moderate |
| Nov | 14 | Moderate |
| Dec | 13 | Moderate |
Where is Kamogawa?
Kamogawa sits at 35.1°N, 140.1°E, 20 m above sea level, in Japan. The nearest listed city is Minamibōsō, 17 km away.
Topography around Kamogawa
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kamogawa.
Within 3 km, the terrain around Kamogawa has only modest variations in elevation — a maximum elevation change of 242 m around an average of 27 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 404 m; within 80 km, large variations in elevation — a maximum elevation change of 728 m.
The land around Kamogawa is covered by water (41%) and trees (28%) within 3 km, trees (50%) and water (43%) within 16 km, and water (62%) 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 Kamogawa (35.0969°, 140.1003°, elevation 20 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.