Ishikawa in Summer
In summer (June, July and August), Ishikawa sees average daytime highs around 28°C and overnight lows near 27°C, with 524 mm of rain over about 41 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 28°C by late August. The sky is clear or mostly clear about 32% of the time across summer, and the air most often feels miserable.
Summer is Ishikawa's weakest season of the year to visit on our travel score. For the whole year in context, see Ishikawa's year-round climate.
- Avg daytime high
- 28°C
- warmest season of the year
- Avg overnight low
- 27°C
- Rainfall
- 524 mm
- 41 wet days
- Avg wind
- 23 km/h
- Travel score
- 5.4
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Ishikawa in Summer
Over the season highs climb from about 26°C in early June to 28°C by late August.
A typical summer day in Ishikawa reaches about 28°C and drops to 27°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Ishikawa
Once humidity and wind are folded in, summer brings about 70 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.
Ishikawa 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 | 19° / 17° | 103 | 12 | 10.5 | 5.6 |
| Feb | 19° / 17° | 99 | 11.7 | 11.1 | 5.5 |
| Mar | 20° / 18° | 134 | 13.2 | 11.8 | 5.8 |
| Apr | 22° / 20° | 158 | 13.2 | 12.6 | 6.0 |
| May | 24° / 23° | 207 | 14.1 | 13.3 | 6.1 |
| Jun | 27° / 26° | 224 | 15.5 | 13.6 | 5.4 |
| Jul | 28° / 27° | 124 | 10.9 | 13.5 | 5.6 |
| Aug | 29° / 27° | 175 | 14.4 | 12.9 | 5.2 |
| Sep | 28° / 27° | 188 | 13.4 | 12.2 | 5.8 |
| Oct | 26° / 25° | 139 | 11.8 | 11.4 | 6.5 |
| Nov | 23° / 22° | 100 | 10.7 | 10.7 | 6.7 |
| Dec | 21° / 19° | 110 | 11.3 | 10.4 | 6.1 |
Cloud cover in Summer
The sky is clear or mostly clear about 32% of the time across summer.
Chance of precipitation in Summer
Ishikawa gets around 524 mm of rain over 41 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 23 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 30 min in early June to 12 h 36 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 6.0 kWh/m².
Hazard calendar for Ishikawa
In summer, Ishikawa overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Ishikawa sits in the Pacific typhoon belt; the season peaks July–October.
Is summer a good time to visit Ishikawa?
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 Ishikawa for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Ishikawa in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Ishikawa sees daytime highs around 28°C and nights near 27°C. Pack light clothes, rain gear and sun protection. Worth having: a windbreaker. About 41 days see rain.
Sea temperature near Ishikawa in Summer
The nearest coast averages about 28°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 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 Ishikawa in Summer
Clear-sky midday UV across summer averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ishikawa 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 Ishikawa 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 Ishikawa 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 Ishikawa?
Ishikawa sits at 26.4°N, 127.8°E, 11 m above sea level, in Japan. The nearest listed city is Uruma, 6.0 km away.
Topography around Ishikawa
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ishikawa.
Within 3 km, the terrain around Ishikawa has only modest variations in elevation — a maximum elevation change of 192 m around an average of 45 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 Ishikawa is covered by trees (54%) within 3 km, water (63%) and trees (22%) within 16 km, and water (92%) 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 Ishikawa (26.4233°, 127.8214°, elevation 11 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.