Haenam in Summer
In summer (June, July and August), Haenam sees average daytime highs around 25°C and overnight lows near 22°C, with 577 mm of rain over about 34 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 26°C by late August. The sky is clear or mostly clear about 27% of the time across summer, and the air most often feels oppressive.
Summer is Haenam's best season of the year to visit on our travel score. For the whole year in context, see Haenam's year-round climate.
- Avg daytime high
- 25°C
- warmest season of the year
- Avg overnight low
- 22°C
- Rainfall
- 577 mm
- 34 wet days
- Avg wind
- 14 km/h
- Travel score
- 6.3
- best season of the year
- Months
- Jun · Jul · Aug
Temperature in Haenam in Summer
Over the season highs climb from about 20°C in early June to 26°C by late August.
A typical summer day in Haenam reaches about 25°C and drops to 22°C overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Haenam
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.
Haenam 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 | 6° / 2° | 37 | 6.7 | 2.5 | 9.9 | 0.4 |
| Feb | 7° / 3° | 42 | 6.2 | 1.5 | 10.7 | 0.9 |
| Mar | 10° / 6° | 73 | 7.5 | 0.4 | 11.7 | 2.4 |
| Apr | 14° / 10° | 94 | 7.9 | 0 | 12.8 | 4.4 |
| May | 18° / 15° | 104 | 7.6 | 0 | 13.8 | 6.2 |
| Jun | 22° / 19° | 172 | 9.6 | 0 | 14.3 | 6.4 |
| Jul | 26° / 23° | 223 | 12.3 | 0 | 14.1 | 6.2 |
| Aug | 27° / 25° | 182 | 11.6 | 0 | 13.3 | 6.3 |
| Sep | 24° / 21° | 140 | 8.5 | 0 | 12.2 | 7.1 |
| Oct | 20° / 16° | 57 | 4.7 | 0 | 11.1 | 7.2 |
| Nov | 14° / 10° | 50 | 6.6 | 0 | 10.2 | 4.5 |
| Dec | 8° / 4° | 37 | 6.4 | 1.3 | 9.7 | 1.7 |
Cloud cover in Summer
The sky is clear or mostly clear about 27% of the time across summer.
Chance of precipitation in Summer
Haenam gets around 577 mm of rain over 34 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 14 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 06 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 5.2 kWh/m².
Hazard calendar for Haenam
In summer, Haenam overlaps its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
Haenam sits in the Pacific typhoon belt; the season peaks July–October.
Haenam's rainy season runs May–September, when most of the year's rain falls.
Is summer a good time to visit Haenam?
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 Haenam for sightseeing.
What to pack for Haenam in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Haenam sees daytime highs around 25°C and nights near 22°C. Pack light clothes. Worth having: rain gear and sun protection. About 34 days see rain.
Sea temperature near Haenam 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 30 km away) is warmest in August at about 25°C and coldest in March near 11°C.
It's comfortable for a long swim from Jun 28 to Oct 14 — about 3.6 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 | 11 | 12 | 15 | 18 | 22 | 25 | 23 | 20 | 16 | 14 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Warm | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 12 | Bracing |
| Feb | 11 | Bracing |
| Mar | 11 | Bracing |
| Apr | 12 | Bracing |
| May | 15 | Bracing |
| Jun | 18 | Cool |
| Jul | 22 | Refreshing |
| Aug | 25 | Warm |
| Sep | 23 | Refreshing |
| Oct | 20 | Cool |
| Nov | 16 | Cool |
| Dec | 14 | Bracing |
UV index in Haenam 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 Haenam peaks around August 14 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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) | 3 | 4 | 6 | 7 | 8 | 8 | 8 | 9 | 8 | 6 | 4 | 2 |
| Level | Moderate | Moderate | High | High | Very high | Very high | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 6 | High |
| 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 | 4 | Moderate |
| Dec | 2 | Moderate |
Air quality in Haenam 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 Haenam is worst in March — around 43 µg/m³ PM2.5 (poor), about 2.4× the cleanest month (July, 18 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) | 31 | 36 | 43 | 37 | 30 | 25 | 18 | 18 | 22 | 24 | 27 | 26 |
| Level | Moderate | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 31 | Moderate |
| Feb | 36 | Poor |
| Mar | 43 | Poor |
| Apr | 37 | Poor |
| May | 30 | Moderate |
| Jun | 25 | Moderate |
| Jul | 18 | Moderate |
| Aug | 18 | Moderate |
| Sep | 22 | Moderate |
| Oct | 24 | Moderate |
| Nov | 27 | Moderate |
| Dec | 26 | Moderate |
Where is Haenam?
Haenam sits at 34.6°N, 126.6°E, 39 m above sea level, in South Korea. The nearest listed city is Yeongam, 27 km away.
Topography around Haenam
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Haenam.
Within 3 km, the terrain around Haenam has significant variations in elevation — a maximum elevation change of 462 m around an average of 123 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 666 m; within 80 km, large variations in elevation — a maximum elevation change of 1,172 m.
The land around Haenam is covered by trees (59%) and cropland (24%) within 3 km, trees (48%) and cropland (40%) within 16 km, and water (57%) and trees (27%) 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 Haenam (34.5711°, 126.5989°, elevation 39 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.