Mishōhirajō in Summer
In summer (June, July and August), Mishōhirajō sees average daytime highs around 25°C and overnight lows near 23°C, with 656 mm of rain over about 39 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 22°C in early June to 27°C by late August. The sky is clear or mostly clear about 26% of the time across summer, and the air most often feels oppressive.
Summer is Mishōhirajō's 2nd-best season to visit on our travel score. For the whole year in context, see Mishōhirajō's year-round climate.
- Avg daytime high
- 25°C
- warmest season of the year
- Avg overnight low
- 23°C
- Rainfall
- 656 mm
- 39 wet days
- Avg wind
- 15 km/h
- Travel score
- 6.0
- 2nd-best season
- Months
- Jun · Jul · Aug
Temperature in Mishōhirajō in Summer
Over the season highs climb from about 22°C in early June to 27°C by late August.
A typical summer day in Mishōhirajō reaches about 25°C and drops to 23°C overnight. The warmest of the three months is August, the coolest June.
Mishōhirajō 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° / 7° | 87 | 11.7 | 0.8 | 10.1 | 2.3 |
| Feb | 11° / 7° | 93 | 10.8 | 0.4 | 10.8 | 2.6 |
| Mar | 14° / 10° | 135 | 12.4 | 0 | 11.7 | 3.8 |
| Apr | 17° / 13° | 146 | 10.7 | 0 | 12.8 | 5.4 |
| May | 20° / 17° | 172 | 10.7 | 0 | 13.7 | 6.2 |
| Jun | 23° / 21° | 306 | 14.9 | 0 | 14.1 | 5.7 |
| Jul | 26° / 24° | 210 | 12.2 | 0 | 14 | 6.2 |
| Aug | 27° / 25° | 141 | 12.1 | 0 | 13.2 | 6.2 |
| Sep | 26° / 23° | 204 | 13.4 | 0 | 12.2 | 6.3 |
| Oct | 22° / 19° | 164 | 9.7 | 0 | 11.2 | 6.9 |
| Nov | 17° / 14° | 103 | 9.2 | 0 | 10.3 | 5.8 |
| Dec | 13° / 9° | 100 | 10.4 | 0.2 | 9.9 | 3.6 |
Cloud cover in Summer
The sky is clear or mostly clear about 26% of the time across summer.
Chance of precipitation in Summer
Mishōhirajō gets around 656 mm of rain over 39 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 15 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 hours in early June to 12 h 42 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 5.1 kWh/m².
Hazard calendar for Mishōhirajō
In summer, Mishōhirajō overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Mishōhirajō sits in the Pacific typhoon belt; the season peaks July–October.
Is summer a good time to visit Mishōhirajō?
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 Mishōhirajō for sightseeing.
What to pack for Mishōhirajō in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Mishōhirajō sees daytime highs around 25°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 39 days see rain.
Sea temperature near Mishōhirajō in Summer
The nearest coast averages about 26°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 28°C and coldest in February near 18°C.
It's comfortable for a long swim from May 1 to Dec 23 — about 7.8 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 19 | 18 | 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 | 19 | Cool |
| Feb | 18 | 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 Mishōhirajō 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 Mishōhirajō peaks around June 23 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 — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 5 | 6 | 7 | 8 | 11 | 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 | 5 | Moderate |
| Mar | 6 | High |
| Apr | 7 | Very high |
| May | 8 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 9 | Very high |
| Sep | 10 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Mishōhirajō 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 Mishōhirajō is worst in April — around 20 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 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) | 13 | 15 | 19 | 20 | 18 | 15 | 11 | 11 | 10 | 10 | 11 | 10 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 13 | Moderate |
| Feb | 15 | Moderate |
| Mar | 19 | Moderate |
| Apr | 20 | Moderate |
| May | 18 | Moderate |
| Jun | 15 | Moderate |
| Jul | 11 | Good |
| Aug | 11 | Good |
| Sep | 10 | Good |
| Oct | 10 | Good |
| Nov | 11 | Good |
| Dec | 10 | Good |
Where is Mishōhirajō?
Mishōhirajō sits at 33.0°N, 132.6°E, 10 m above sea level, in Japan. The nearest listed city is Sukumo, 16 km away.
Topography around Mishōhirajō
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mishōhirajō.
Within 3 km, the terrain around Mishōhirajō has significant variations in elevation — a maximum elevation change of 305 m around an average of 59 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,052 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,529 m.
The land around Mishōhirajō is covered by trees (67%) within 3 km, trees (49%) and water (48%) within 16 km, and water (62%) and trees (36%) 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 Mishōhirajō (32.9637°, 132.5661°, elevation 10 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.