Shimotsuke in Summer
In summer (June, July and August), Shimotsuke sees average daytime highs around 27°C and overnight lows near 20°C, with 674 mm of rain over about 60 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 11% of the time across summer, and the air most often feels oppressive.
Summer is Shimotsuke's 3rd-best season to visit on our travel score. For the whole year in context, see Shimotsuke's year-round climate.
- Avg daytime high
- 27°C
- warmest season of the year
- Avg overnight low
- 20°C
- Rainfall
- 674 mm
- 60 wet days
- Avg wind
- 6 km/h
- Travel score
- 4.5
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Shimotsuke 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 Shimotsuke reaches about 27°C and drops to 20°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Shimotsuke
Once humidity and wind are folded in, summer brings about 25 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.
Shimotsuke 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 | 7° / -1° | 55 | 6.3 | 2.5 | 9.8 | 1.2 |
| Feb | 8° / -0° | 54 | 7.1 | 2.6 | 10.6 | 1.6 |
| Mar | 12° / 2° | 113 | 12.6 | 2.3 | 11.7 | 3.0 |
| Apr | 17° / 7° | 136 | 13.4 | 0.3 | 12.9 | 5.0 |
| May | 22° / 13° | 173 | 14.9 | 0 | 13.9 | 5.8 |
| Jun | 25° / 17° | 204 | 18.4 | 0 | 14.4 | 5.2 |
| Jul | 28° / 21° | 262 | 21.5 | 0 | 14.2 | 4.2 |
| Aug | 29° / 22° | 207 | 19.6 | 0 | 13.4 | 4.1 |
| Sep | 26° / 19° | 239 | 17.8 | 0 | 12.2 | 5.2 |
| Oct | 20° / 13° | 206 | 14.8 | 0 | 11.1 | 5.6 |
| Nov | 15° / 6° | 91 | 9.2 | 0 | 10.1 | 4.6 |
| Dec | 10° / 1° | 55 | 6.8 | 0.6 | 9.6 | 2.4 |
Cloud cover in Summer
The sky is clear or mostly clear about 11% of the time across summer.
Chance of precipitation in Summer
Shimotsuke gets around 674 mm of rain over 60 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 6 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 18 min in early June to 12 h 54 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 4.4 kWh/m².
Hazard calendar for Shimotsuke
In summer, Shimotsuke overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Shimotsuke's rainy season runs April–October, when most of the year's rain falls.
Is summer a good time to visit Shimotsuke?
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 Shimotsuke for sightseeing.
What to pack for Shimotsuke in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Shimotsuke sees daytime highs around 27°C and nights near 20°C. Pack light clothes and rain gear. About 60 days see rain.
Sea temperature near Shimotsuke in Summer
The nearest coast averages about 22°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 68 km away) is warmest in August at about 24°C and coldest in February near 13°C.
It's comfortable for a long swim from Jun 24 to Oct 28 — about 4.2 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 15 | 13 | 13 | 15 | 17 | 19 | 22 | 24 | 23 | 21 | 19 | 16 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Warm | Refreshing | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 15 | Bracing |
| Feb | 13 | Bracing |
| Mar | 13 | Bracing |
| Apr | 15 | Bracing |
| May | 17 | Cool |
| Jun | 19 | Cool |
| Jul | 22 | Refreshing |
| Aug | 24 | Warm |
| Sep | 23 | Refreshing |
| Oct | 21 | Refreshing |
| Nov | 19 | Cool |
| Dec | 16 | Cool |
UV index in Shimotsuke in Summer
Clear-sky midday UV across summer averages around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Shimotsuke peaks around July 17 at about 9 (very high) — 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 | 4 | 6 | 8 | 9 | 10 | 9 | 8 | 6 | 3 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 4 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 10 | Very high |
| Aug | 9 | Very high |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Air quality in Shimotsuke 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 Shimotsuke is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 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) | 10 | 13 | 19 | 21 | 20 | 16 | 14 | 13 | 11 | 11 | 10 | 9 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 13 | Moderate |
| Mar | 19 | Moderate |
| Apr | 21 | Moderate |
| May | 20 | Moderate |
| Jun | 16 | Moderate |
| Jul | 14 | Moderate |
| Aug | 13 | Moderate |
| Sep | 11 | Good |
| Oct | 11 | Good |
| Nov | 10 | Good |
| Dec | 9 | Good |
Where is Shimotsuke?
Shimotsuke sits at 36.4°N, 139.9°E, 66 m above sea level, in Japan. The nearest listed city is Kaminokawa, 5.0 km away.
Topography around Shimotsuke
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Shimotsuke.
Within 3 km, the terrain around Shimotsuke has only modest variations in elevation — a maximum elevation change of 34 m around an average of 60 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 218 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,553 m.
The land around Shimotsuke is covered by cropland (47%) and artificial surfaces (33%) within 3 km, cropland (45%) and artificial surfaces (34%) within 16 km, and trees (51%), cropland (21%) and artificial surfaces (20%) 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 Shimotsuke (36.4132°, 139.8662°, elevation 66 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.