Nishinoomote in Summer
In summer (June, July and August), Nishinoomote sees average daytime highs around 27°C and overnight lows near 26°C, with 740 mm of rain over about 45 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 24°C in early June to 28°C by late August. The sky is clear or mostly clear about 28% of the time across summer, and the air most often feels miserable.
Summer is Nishinoomote's 3rd-best season to visit on our travel score. For the whole year in context, see Nishinoomote's year-round climate.
- Avg daytime high
- 27°C
- warmest season of the year
- Avg overnight low
- 26°C
- Rainfall
- 740 mm
- 45 wet days
- Avg wind
- 23 km/h
- Travel score
- 5.5
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Nishinoomote in Summer
Over the season highs climb from about 24°C in early June to 28°C by late August.
A typical summer day in Nishinoomote reaches about 27°C and drops to 26°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Nishinoomote
Once humidity and wind are folded in, summer brings about 49 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.
Nishinoomote 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 | 14° / 11° | 105 | 10.1 | 10.2 | 4.2 |
| Feb | 15° / 12° | 112 | 10.4 | 10.9 | 4.2 |
| Mar | 17° / 14° | 178 | 14.3 | 11.8 | 4.9 |
| Apr | 20° / 17° | 187 | 12 | 12.7 | 5.8 |
| May | 22° / 21° | 203 | 12.3 | 13.5 | 6.2 |
| Jun | 25° / 23° | 422 | 18.4 | 14 | 5.2 |
| Jul | 28° / 26° | 181 | 12.7 | 13.8 | 5.8 |
| Aug | 28° / 27° | 138 | 13.9 | 13.1 | 5.4 |
| Sep | 27° / 26° | 213 | 15 | 12.2 | 5.8 |
| Oct | 24° / 22° | 155 | 11.7 | 11.2 | 6.8 |
| Nov | 21° / 18° | 130 | 10.7 | 10.4 | 6.3 |
| Dec | 17° / 14° | 96 | 9.2 | 10 | 5.3 |
Cloud cover in Summer
The sky is clear or mostly clear about 28% of the time across summer.
Chance of precipitation in Summer
Nishinoomote gets around 740 mm of rain over 45 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 48 min 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 5.3 kWh/m².
Hazard calendar for Nishinoomote
In summer, Nishinoomote overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Nishinoomote sits in the Pacific typhoon belt; the season peaks July–October.
Is summer a good time to visit Nishinoomote?
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 Nishinoomote for sightseeing.
What to pack for Nishinoomote in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Nishinoomote sees daytime highs around 27°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection and a windbreaker. About 45 days see rain.
Sea temperature near Nishinoomote in Summer
The nearest coast averages about 27°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 17 km away) is warmest in August at about 29°C and coldest in February near 19°C.
It's comfortable for a long swim from Mar 22 to Jan 20 — about 10 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 20 | 19 | 20 | 21 | 23 | 25 | 27 | 29 | 28 | 26 | 24 | 22 |
| Comfort | Refreshing | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Tropical | Warm | Warm | Warm | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 20 | Refreshing |
| Feb | 19 | Cool |
| Mar | 20 | Cool |
| Apr | 21 | Refreshing |
| May | 23 | Refreshing |
| Jun | 25 | Warm |
| Jul | 27 | Warm |
| Aug | 29 | Tropical |
| Sep | 28 | Warm |
| Oct | 26 | Warm |
| Nov | 24 | Warm |
| Dec | 22 | Refreshing |
UV index in Nishinoomote 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 Nishinoomote peaks around June 22 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 4 (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) | 4 | 5 | 7 | 9 | 9 | 11 | 11 | 10 | 10 | 7 | 5 | 4 |
| Level | Moderate | High | High | Very high | Very high | Extreme | Extreme | Very high | Extreme | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 5 | High |
| Mar | 7 | High |
| Apr | 9 | Very high |
| May | 9 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 10 | Very high |
| Sep | 10 | Extreme |
| Oct | 7 | High |
| Nov | 5 | Moderate |
| Dec | 4 | Moderate |
Air quality in Nishinoomote 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 Nishinoomote is worst in April — around 19 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (July, 9 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 | 16 | 18 | 19 | 17 | 13 | 9 | 10 | 9 | 10 | 10 | 10 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Moderate |
| Feb | 16 | Moderate |
| Mar | 18 | Moderate |
| Apr | 19 | Moderate |
| May | 17 | Moderate |
| Jun | 13 | Moderate |
| Jul | 9 | Good |
| Aug | 10 | Good |
| Sep | 9 | Good |
| Oct | 10 | Good |
| Nov | 10 | Good |
| Dec | 10 | Good |
Where is Nishinoomote?
Nishinoomote sits at 30.7°N, 131.0°E, 38 m above sea level, in Japan. The nearest listed city is Yakushima, 51 km away.
Topography around Nishinoomote
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Nishinoomote.
Within 3 km, the terrain around Nishinoomote has only modest variations in elevation — a maximum elevation change of 164 m around an average of 40 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 286 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,893 m.
The land around Nishinoomote is covered by trees (50%) and water (33%) within 3 km, water (72%) and trees (24%) within 16 km, and water (85%) 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 Nishinoomote (30.7333°, 131°, elevation 38 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.