Nayoro in Summer
In summer (June, July and August), Nayoro sees average daytime highs around 21°C and overnight lows near 13°C, with 376 mm of rain over about 42 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 18°C in early June to 22°C by late August. The sky is clear or mostly clear about 15% of the time across summer, and the air most often feels dry.
Summer is Nayoro's best season of the year to visit on our travel score. For the whole year in context, see Nayoro's year-round climate.
- Avg daytime high
- 21°C
- warmest season of the year
- Avg overnight low
- 13°C
- Rainfall
- 376 mm
- 42 wet days
- Avg wind
- 8 km/h
- Travel score
- 5.7
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Nayoro in Summer
Over the season highs climb from about 18°C in early June to 22°C by late August.
A typical summer day in Nayoro reaches about 21°C and drops to 13°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Nayoro
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.
Nayoro 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 | -5° / -12° | 61 | 14.7 | 19.1 | 9 | 0.0 |
| Feb | -4° / -12° | 52 | 12.5 | 16.3 | 10.2 | 0.0 |
| Mar | 1° / -7° | 69 | 14.2 | 15.6 | 11.6 | 0.0 |
| Apr | 8° / -1° | 74 | 13.5 | 7.8 | 13.2 | 1.3 |
| May | 15° / 5° | 89 | 12.9 | 0.9 | 14.6 | 4.1 |
| Jun | 19° / 10° | 91 | 12.8 | 0 | 15.3 | 5.4 |
| Jul | 22° / 14° | 136 | 14.6 | 0 | 15 | 5.8 |
| Aug | 23° / 15° | 149 | 14.5 | 0 | 13.8 | 5.8 |
| Sep | 19° / 10° | 139 | 14.9 | 0 | 12.3 | 5.2 |
| Oct | 13° / 4° | 116 | 15.6 | 1.4 | 10.8 | 3.0 |
| Nov | 4° / -3° | 114 | 18.2 | 14.1 | 9.4 | 0.3 |
| Dec | -3° / -9° | 90 | 18 | 21.8 | 8.7 | 0.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 15% of the time across summer.
Chance of precipitation in Summer
Nayoro gets around 376 mm of rain over 42 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 h 06 min in early June to 13 h 06 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 4.6 kWh/m².
Hazard calendar for Nayoro
In summer, Nayoro overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Nayoro sits in the Pacific typhoon belt; the season peaks July–October.
Is summer a good time to visit Nayoro?
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 Nayoro for sightseeing.
What to pack for Nayoro in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Nayoro sees daytime highs around 21°C and nights near 13°C. Pack rain gear. Worth having: light clothes and sun protection. About 42 days see rain.
Sea temperature near Nayoro in Summer
The nearest coast averages about 14°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 45 km away) is warmest in August at about 18°C and coldest in February near -0°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 0 | 0 | 0 | 2 | 5 | 10 | 14 | 18 | 17 | 13 | 7 | 3 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 0 | Bracing |
| Feb | 0 | Bracing |
| Mar | 0 | Bracing |
| Apr | 2 | Bracing |
| May | 5 | Bracing |
| Jun | 10 | Bracing |
| Jul | 14 | Bracing |
| Aug | 18 | Cool |
| Sep | 17 | Cool |
| Oct | 13 | Bracing |
| Nov | 7 | Bracing |
| Dec | 3 | Bracing |
UV index in Nayoro in Summer
Clear-sky midday UV across summer averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Nayoro peaks around August 14 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 6 | 7 | 7 | 7 | 8 | 6 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | Very high | High | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 3 | Moderate |
| Apr | 6 | High |
| May | 7 | Very high |
| Jun | 7 | High |
| Jul | 7 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Nayoro 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 Nayoro is worst in April — around 17 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 7 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) | 7 | 10 | 15 | 17 | 15 | 10 | 10 | 8 | 7 | 9 | 8 | 7 |
| Level | Good | Good | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 10 | Good |
| Mar | 15 | Moderate |
| Apr | 17 | Moderate |
| May | 15 | Moderate |
| Jun | 10 | Good |
| Jul | 10 | Good |
| Aug | 8 | Good |
| Sep | 7 | Good |
| Oct | 9 | Good |
| Nov | 8 | Good |
| Dec | 7 | Good |
Where is Nayoro?
Nayoro sits at 44.4°N, 142.5°E, 97 m above sea level, in Japan. The nearest listed city is Minamishibetsuchō, 23 km away.
Topography around Nayoro
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Nayoro.
Within 3 km, the terrain around Nayoro has only modest variations in elevation — a maximum elevation change of 173 m around an average of 109 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 916 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,225 m.
The land around Nayoro is covered by cropland (39%), artificial surfaces (26%) and trees (25%) within 3 km, trees (71%) and cropland (23%) within 16 km, and trees (68%) and water (21%) 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 Nayoro (44.3506°, 142.4578°, elevation 97 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.