Hayang in Summer
In summer (June, July and August), Hayang sees average daytime highs around 29°C and overnight lows near 20°C, with 518 mm of rain over about 36 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 19% of the time across summer, and the air most often feels oppressive.
Summer is Hayang's 3rd-best season to visit on our travel score. For the whole year in context, see Hayang's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 20°C
- Rainfall
- 518 mm
- 36 wet days
- Avg wind
- 8 km/h
- Travel score
- 5.3
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Hayang in Summer
Across summer, daytime highs hold fairly steady around 29°C.
A typical summer day in Hayang reaches about 29°C and drops to 20°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Hayang
Once humidity and wind are folded in, summer brings about 27 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.
Hayang 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° / -4° | 22 | 3.6 | 1.5 | 9.8 | 0.0 |
| Feb | 7° / -2° | 29 | 3.9 | 1.1 | 10.6 | 1.2 |
| Mar | 13° / 2° | 57 | 6.7 | 1.2 | 11.7 | 3.9 |
| Apr | 19° / 7° | 77 | 7.2 | 0.1 | 12.9 | 6.5 |
| May | 24° / 13° | 88 | 7.5 | 0 | 13.9 | 7.2 |
| Jun | 27° / 18° | 123 | 8.7 | 0 | 14.4 | 6.4 |
| Jul | 29° / 22° | 205 | 13.6 | 0 | 14.2 | 4.9 |
| Aug | 30° / 22° | 190 | 13.6 | 0 | 13.4 | 4.7 |
| Sep | 25° / 17° | 135 | 8.7 | 0 | 12.2 | 6.8 |
| Oct | 20° / 10° | 55 | 4.4 | 0 | 11.1 | 7.4 |
| Nov | 13° / 3° | 35 | 4.5 | 0.1 | 10.1 | 4.4 |
| Dec | 7° / -2° | 21 | 3.7 | 0.8 | 9.6 | 0.8 |
Cloud cover in Summer
The sky is clear or mostly clear about 19% of the time across summer.
Chance of precipitation in Summer
Hayang gets around 518 mm of rain over 36 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 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 18 min in early June to 12 h 48 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 4.7 kWh/m².
Hazard calendar for Hayang
In summer, Hayang overlaps its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
Hayang sits in the Pacific typhoon belt; the season peaks July–October.
Hayang's rainy season runs June–September, when most of the year's rain falls.
Is summer a good time to visit Hayang?
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 Hayang for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Hayang in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Hayang sees daytime highs around 29°C and nights near 20°C. Pack light clothes. Worth having: rain gear and sun protection. About 36 days see rain.
UV index in Hayang in Summer
Clear-sky midday UV across summer averages around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Hayang peaks around August 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 | 3 | 5 | 7 | 8 | 8 | 8 | 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 | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 9 | Very high |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Air quality in Hayang 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 Hayang is worst in March — around 66 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (August, 34 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) | 51 | 57 | 66 | 60 | 55 | 47 | 37 | 34 | 39 | 47 | 56 | 47 |
| Level | Poor | Unhealthy | Unhealthy | Unhealthy | Poor | Poor | Poor | Moderate | Poor | Poor | Unhealthy | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 51 | Poor |
| Feb | 57 | Unhealthy |
| Mar | 66 | Unhealthy |
| Apr | 60 | Unhealthy |
| May | 55 | Poor |
| Jun | 47 | Poor |
| Jul | 37 | Poor |
| Aug | 34 | Moderate |
| Sep | 39 | Poor |
| Oct | 47 | Poor |
| Nov | 56 | Unhealthy |
| Dec | 47 | Poor |
Where is Hayang?
Hayang sits at 35.9°N, 128.8°E, 57 m above sea level, in South Korea. The nearest listed city is Eisen, 12 km away.
Topography around Hayang
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hayang.
Within 3 km, the terrain around Hayang has significant variations in elevation — a maximum elevation change of 263 m around an average of 79 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,147 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,396 m.
The land around Hayang is covered by cropland (34%), trees (25%) and artificial surfaces (24%) within 3 km, trees (57%) and cropland (21%) within 16 km, and trees (68%) within 80 km.
South Korea travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / F
- 220 V · 60 Hz
- Prices
- ≈ 57% of US
- price level, 2025
- GDP per capita
- $36,227
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 99%
- of population, 2024
- Homicide rate
- 0.5
- per 100k, 2023
- Road deaths
- 8.6
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 522
- 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 Hayang (35.9133°, 128.82°, elevation 57 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.