Muikamachi in Summer
In summer (June, July and August), Muikamachi sees average daytime highs around 24°C and overnight lows near 16°C, with 605 mm of rain over about 56 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 20°C in early June to 24°C by late August. The sky is clear or mostly clear about 13% of the time across summer, and the air most often feels muggy.
Summer is Muikamachi's best season of the year to visit on our travel score. For the whole year in context, see Muikamachi's year-round climate.
- Avg daytime high
- 24°C
- warmest season of the year
- Avg overnight low
- 16°C
- Rainfall
- 605 mm
- 56 wet days
- Avg wind
- 5 km/h
- Travel score
- 5.2
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Muikamachi in Summer
Over the season highs climb from about 20°C in early June to 24°C by late August.
A typical summer day in Muikamachi reaches about 24°C and drops to 16°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Muikamachi
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Muikamachi 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 | -1° / -7° | 213 | 25.2 | 25.4 | 9.7 | 0.0 |
| Feb | 1° / -6° | 167 | 20.8 | 20.6 | 10.6 | 0.0 |
| Mar | 4° / -4° | 168 | 21.1 | 18.3 | 11.7 | 0.1 |
| Apr | 11° / 1° | 134 | 16.7 | 6.2 | 12.9 | 2.1 |
| May | 17° / 8° | 145 | 15.2 | 0.6 | 14 | 4.8 |
| Jun | 21° / 13° | 179 | 17.3 | 0 | 14.5 | 5.0 |
| Jul | 24° / 17° | 249 | 21.1 | 0 | 14.3 | 5.0 |
| Aug | 26° / 18° | 177 | 18 | 0 | 13.4 | 5.5 |
| Sep | 22° / 14° | 188 | 16.3 | 0 | 12.3 | 5.3 |
| Oct | 16° / 8° | 177 | 16.3 | 0.5 | 11 | 4.1 |
| Nov | 9° / 1° | 144 | 18.2 | 7.4 | 10 | 1.5 |
| Dec | 3° / -5° | 190 | 22.9 | 20.1 | 9.5 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 13% of the time across summer.
Chance of precipitation in Summer
Muikamachi gets around 605 mm of rain over 56 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 5 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 24 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 4.9 kWh/m².
Hazard calendar for Muikamachi
In summer, Muikamachi overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Muikamachi sits in the Pacific typhoon belt; the season peaks July–October.
Is summer a good time to visit Muikamachi?
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 Muikamachi for sightseeing.
What to pack for Muikamachi in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Muikamachi sees daytime highs around 24°C and nights near 16°C. Pack rain gear. Worth having: light clothes and sun protection. About 56 days see rain.
Sea temperature near Muikamachi in Summer
The nearest coast averages about 23°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 41 km away) is warmest in August at about 27°C and coldest in March near 10°C.
It's comfortable for a long swim from Jun 21 to Oct 31 — about 4.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 12 | 11 | 10 | 11 | 15 | 20 | 23 | 27 | 25 | 22 | 18 | 15 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Warm | Warm | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 12 | Bracing |
| Feb | 11 | Bracing |
| Mar | 10 | Bracing |
| Apr | 11 | Bracing |
| May | 15 | Bracing |
| Jun | 20 | Cool |
| Jul | 23 | Refreshing |
| Aug | 27 | Warm |
| Sep | 25 | Warm |
| Oct | 22 | Refreshing |
| Nov | 18 | Cool |
| Dec | 15 | Cool |
UV index in Muikamachi 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 Muikamachi peaks around August 12 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 | 5 | 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 | 5 | Moderate |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 10 | Very high |
| Aug | 10 | Very high |
| Sep | 8 | Very high |
| Oct | 5 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Air quality in Muikamachi 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 Muikamachi is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 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) | 11 | 14 | 19 | 21 | 20 | 18 | 15 | 13 | 12 | 12 | 11 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 14 | Moderate |
| Mar | 19 | Moderate |
| Apr | 21 | Moderate |
| May | 20 | Moderate |
| Jun | 18 | Moderate |
| Jul | 15 | Moderate |
| Aug | 13 | Moderate |
| Sep | 12 | Good |
| Oct | 12 | Good |
| Nov | 11 | Good |
| Dec | 10 | Good |
Where is Muikamachi?
Muikamachi sits at 37.1°N, 138.9°E, 162 m above sea level, in Japan. The nearest listed city is Minamiuonuma, 2.0 km away.
Topography around Muikamachi
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Muikamachi.
Within 3 km, the terrain around Muikamachi has significant variations in elevation — a maximum elevation change of 461 m around an average of 231 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,862 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,551 m.
The land around Muikamachi is covered by trees (43%) and cropland (33%) within 3 km, trees (77%) within 16 km, and trees (75%) 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 Muikamachi (37.0667°, 138.8833°, elevation 162 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.