Koch'ang weather in August
In August, Koch'ang sees average daytime highs of 29°C and overnight lows near 23°C, with 228 mm of rain across 16 wet days and about 13.3 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.
Highs ease over the month, from about 30°C in the first days to 28°C by the end. The sky is clear or mostly clear about 27% of the time in August, and the air most often feels oppressive.
Daylight stretches from about 13 h 48 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Koch'ang's 9th-clearest and 10th-windiest month. For the whole year in context, see Koch'ang's year-round climate.
- Daytime high
- 29°
- 1st warmest
- Overnight low
- 23°
- 12th coldest
- Rainfall
- 228 mm
- 16 wet days
- Daylight
- 13 h 18 min
- 5:57 AM – 7:18 PM
- Cloud cover
- 65%
- 9th clearest
- Wind
- 9 km/h
- 10th windiest
- Solar energy
- 4.76 kWh/m²
- Travel score
- 4.6
- out of 10
Koch'ang is human settlement in South Korea.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Highs ease over the month, from about 30°C in the first days to 28°C by the end.
A typical August day in Koch'ang reaches about 29°C in the afternoon and slips back to 23°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 32°C. Set against its neighbours, August runs about 1°C warmer than July and about 4°C warmer than September.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 24 |
| 2 | 30 | 24 |
| 3 | 30 | 24 |
| 4 | 30 | 24 |
| 5 | 30 | 24 |
| 6 | 30 | 24 |
| 7 | 30 | 24 |
| 8 | 30 | 24 |
| 9 | 30 | 24 |
| 10 | 30 | 24 |
| 11 | 30 | 24 |
| 12 | 30 | 24 |
| 13 | 30 | 24 |
| 14 | 30 | 23 |
| 15 | 30 | 23 |
| 16 | 30 | 23 |
| 17 | 29 | 23 |
| 18 | 29 | 23 |
| 19 | 29 | 23 |
| 20 | 29 | 23 |
| 21 | 29 | 23 |
| 22 | 29 | 23 |
| 23 | 29 | 22 |
| 24 | 29 | 22 |
| 25 | 29 | 22 |
| 26 | 28 | 22 |
| 27 | 28 | 22 |
| 28 | 28 | 22 |
| 29 | 28 | 21 |
| 30 | 28 | 21 |
| 31 | 28 | 21 |
How August really feels in Koch'ang
Once humidity and wind are folded in, August averages 21 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Koch'ang weather by month
How August compares with the rest of the year at a glance. August is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 4° / -3° | 28 | 5.9 | 4.1 | 9.9 | 0.0 |
| Feb | 6° / -2° | 33 | 5.4 | 1.7 | 10.7 | 0.7 |
| Mar | 11° / 2° | 55 | 7.3 | 1 | 11.7 | 3.2 |
| Apr | 17° / 7° | 81 | 7.5 | 0 | 12.9 | 5.9 |
| May | 22° / 13° | 88 | 7.8 | 0 | 13.8 | 7.1 |
| Jun | 26° / 18° | 147 | 9.6 | 0 | 14.3 | 6.6 |
| Jul | 29° / 23° | 238 | 15.6 | 0 | 14.1 | 4.9 |
| Aug | 29° / 23° | 228 | 16 | 0 | 13.3 | 4.6 |
| Sep | 26° / 18° | 150 | 9.5 | 0 | 12.2 | 6.8 |
| Oct | 20° / 11° | 57 | 5.5 | 0 | 11.1 | 7.3 |
| Nov | 14° / 5° | 47 | 6.9 | 0.2 | 10.1 | 4.2 |
| Dec | 7° / -1° | 31 | 6.5 | 2.9 | 9.7 | 0.9 |
Cloud cover in August
The sky is clear or mostly clear about 27% of the time in August.
Beyond those clear spells, partly cloudy skies cover about 16% of August, with mostly cloudy or overcast conditions the remaining 58%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 47 | 48 | 48 | 48 | 48 | 48 | 48 | 47 | 46 | 46 | 44 | 44 | 43 | 42 | 41 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 38 | 38 | 40 | 40 | 40 | 42 | 42 |
| Cloudier (%) | 53 | 52 | 52 | 52 | 52 | 52 | 52 | 53 | 54 | 54 | 56 | 56 | 57 | 58 | 59 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 62 | 62 | 60 | 60 | 60 | 58 | 58 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 47 | 53 |
| 2 | 48 | 52 |
| 3 | 48 | 52 |
| 4 | 48 | 52 |
| 5 | 48 | 52 |
| 6 | 48 | 52 |
| 7 | 48 | 52 |
| 8 | 47 | 53 |
| 9 | 46 | 54 |
| 10 | 46 | 54 |
| 11 | 44 | 56 |
| 12 | 44 | 56 |
| 13 | 43 | 57 |
| 14 | 42 | 58 |
| 15 | 41 | 59 |
| 16 | 39 | 61 |
| 17 | 39 | 61 |
| 18 | 39 | 61 |
| 19 | 39 | 61 |
| 20 | 39 | 61 |
| 21 | 39 | 61 |
| 22 | 39 | 61 |
| 23 | 39 | 61 |
| 24 | 39 | 61 |
| 25 | 38 | 62 |
| 26 | 38 | 62 |
| 27 | 40 | 60 |
| 28 | 40 | 60 |
| 29 | 40 | 60 |
| 30 | 42 | 58 |
| 31 | 42 | 58 |
Chance of precipitation in August
Koch'ang gets around 228 mm of rain over 16 wet days in August. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 51% and peaks near 53% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 49 | 50 | 50 | 50 | 51 | 51 | 51 | 51 | 51 | 51 | 52 | 52 | 52 | 52 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 52 | 52 | 51 | 50 | 50 | 49 | 47 | 46 |
| Rain chance (%) | |
|---|---|
| 1 | 49 |
| 2 | 50 |
| 3 | 50 |
| 4 | 50 |
| 5 | 51 |
| 6 | 51 |
| 7 | 51 |
| 8 | 51 |
| 9 | 51 |
| 10 | 51 |
| 11 | 52 |
| 12 | 52 |
| 13 | 52 |
| 14 | 52 |
| 15 | 53 |
| 16 | 53 |
| 17 | 53 |
| 18 | 53 |
| 19 | 53 |
| 20 | 53 |
| 21 | 53 |
| 22 | 53 |
| 23 | 53 |
| 24 | 52 |
| 25 | 52 |
| 26 | 51 |
| 27 | 50 |
| 28 | 50 |
| 29 | 49 |
| 30 | 47 |
| 31 | 46 |
Humidity in August
Most of August feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the oppressive band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 95% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 2 |
| Humid (%) | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 5 | 6 | 6 | 7 | 8 | 9 | 11 | 12 | 14 | 16 | 17 |
| Muggy (%) | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 11 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 20 | 21 | 23 | 24 | 26 | 27 | 29 | 31 | 32 | 34 | 35 | 36 | 37 | 38 | 39 |
| Oppressive (%) | 48 | 48 | 47 | 47 | 47 | 47 | 47 | 47 | 48 | 48 | 49 | 49 | 50 | 50 | 51 | 50 | 50 | 51 | 50 | 51 | 50 | 49 | 48 | 47 | 46 | 44 | 43 | 41 | 40 | 38 | 36 |
| Miserable (%) | 42 | 43 | 43 | 43 | 43 | 42 | 42 | 41 | 39 | 38 | 37 | 35 | 34 | 32 | 30 | 29 | 27 | 25 | 23 | 21 | 19 | 18 | 16 | 14 | 13 | 11 | 10 | 9 | 8 | 7 | 6 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|
| 1 | 0 | 0 | 9 | 48 | 42 |
| 2 | 0 | 1 | 9 | 48 | 43 |
| 3 | 0 | 1 | 9 | 47 | 43 |
| 4 | 0 | 1 | 10 | 47 | 43 |
| 5 | 0 | 1 | 10 | 47 | 43 |
| 6 | 0 | 1 | 10 | 47 | 42 |
| 7 | 0 | 1 | 10 | 47 | 42 |
| 8 | 0 | 1 | 11 | 47 | 41 |
| 9 | 0 | 1 | 11 | 48 | 39 |
| 10 | 0 | 2 | 12 | 48 | 38 |
| 11 | 0 | 2 | 13 | 49 | 37 |
| 12 | 0 | 2 | 14 | 49 | 35 |
| 13 | 0 | 2 | 15 | 50 | 34 |
| 14 | 0 | 2 | 16 | 50 | 32 |
| 15 | 0 | 2 | 17 | 51 | 30 |
| 16 | 0 | 3 | 18 | 50 | 29 |
| 17 | 0 | 3 | 20 | 50 | 27 |
| 18 | 0 | 3 | 21 | 51 | 25 |
| 19 | 0 | 4 | 23 | 50 | 23 |
| 20 | 0 | 4 | 24 | 51 | 21 |
| 21 | 0 | 5 | 26 | 50 | 19 |
| 22 | 0 | 6 | 27 | 49 | 18 |
| 23 | 0 | 6 | 29 | 48 | 16 |
| 24 | 0 | 7 | 31 | 47 | 14 |
| 25 | 1 | 8 | 32 | 46 | 13 |
| 26 | 1 | 9 | 34 | 44 | 11 |
| 27 | 1 | 11 | 35 | 43 | 10 |
| 28 | 1 | 12 | 36 | 41 | 9 |
| 29 | 1 | 14 | 37 | 40 | 8 |
| 30 | 2 | 16 | 38 | 38 | 7 |
| 31 | 2 | 17 | 39 | 36 | 6 |
Wind in August
Winds average 9 km/h in August.
Across August, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 10 | calm |
| 2 | 10 | calm |
| 3 | 9 | calm |
| 4 | 9 | calm |
| 5 | 9 | calm |
| 6 | 9 | calm |
| 7 | 9 | calm |
| 8 | 9 | calm |
| 9 | 9 | calm |
| 10 | 9 | calm |
| 11 | 9 | calm |
| 12 | 9 | calm |
| 13 | 9 | calm |
| 14 | 9 | calm |
| 15 | 9 | calm |
| 16 | 9 | calm |
| 17 | 9 | calm |
| 18 | 9 | calm |
| 19 | 9 | calm |
| 20 | 9 | calm |
| 21 | 9 | calm |
| 22 | 9 | calm |
| 23 | 9 | calm |
| 24 | 9 | calm |
| 25 | 9 | calm |
| 26 | 9 | calm |
| 27 | 9 | calm |
| 28 | 9 | calm |
| 29 | 9 | calm |
| 30 | 9 | calm |
| 31 | 9 | calm |
Sunrise & sunset in August
Daylight runs from about 13 h 48 min at the start of August to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 60 minutes over August. Sunrise moves from 5:45 AM to 6:09 AM, and sunset from 7:33 PM to 6:58 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.8 | 13.8 | 13.8 | 13.7 | 13.7 | 13.7 | 13.6 | 13.6 | 13.6 | 13.5 | 13.5 | 13.5 | 13.4 | 13.4 | 13.4 | 13.3 | 13.3 | 13.3 | 13.2 | 13.2 | 13.2 | 13.1 | 13.1 | 13.1 | 13.0 | 13.0 | 13.0 | 12.9 | 12.9 | 12.9 | 12.8 |
| Sunrise (AM) | 5:45 | 5:46 | 5:47 | 5:47 | 5:48 | 5:49 | 5:50 | 5:51 | 5:51 | 5:52 | 5:53 | 5:54 | 5:54 | 5:55 | 5:56 | 5:57 | 5:58 | 5:58 | 5:59 | 6:00 | 6:01 | 6:02 | 6:02 | 6:03 | 6:04 | 6:05 | 6:05 | 6:06 | 6:07 | 6:08 | 6:09 |
| Sunset (PM) | 7:33 | 7:33 | 7:32 | 7:31 | 7:30 | 7:29 | 7:28 | 7:27 | 7:26 | 7:25 | 7:24 | 7:22 | 7:21 | 7:20 | 7:19 | 7:18 | 7:17 | 7:15 | 7:14 | 7:13 | 7:11 | 7:10 | 7:09 | 7:08 | 7:06 | 7:05 | 7:03 | 7:02 | 7:01 | 6:59 | 6:58 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.8 | 5:45 | 7:33 |
| 2 | 13.8 | 5:46 | 7:33 |
| 3 | 13.8 | 5:47 | 7:32 |
| 4 | 13.7 | 5:47 | 7:31 |
| 5 | 13.7 | 5:48 | 7:30 |
| 6 | 13.7 | 5:49 | 7:29 |
| 7 | 13.6 | 5:50 | 7:28 |
| 8 | 13.6 | 5:51 | 7:27 |
| 9 | 13.6 | 5:51 | 7:26 |
| 10 | 13.5 | 5:52 | 7:25 |
| 11 | 13.5 | 5:53 | 7:24 |
| 12 | 13.5 | 5:54 | 7:22 |
| 13 | 13.4 | 5:54 | 7:21 |
| 14 | 13.4 | 5:55 | 7:20 |
| 15 | 13.4 | 5:56 | 7:19 |
| 16 | 13.3 | 5:57 | 7:18 |
| 17 | 13.3 | 5:58 | 7:17 |
| 18 | 13.3 | 5:58 | 7:15 |
| 19 | 13.2 | 5:59 | 7:14 |
| 20 | 13.2 | 6:00 | 7:13 |
| 21 | 13.2 | 6:01 | 7:11 |
| 22 | 13.1 | 6:02 | 7:10 |
| 23 | 13.1 | 6:02 | 7:09 |
| 24 | 13.1 | 6:03 | 7:08 |
| 25 | 13.0 | 6:04 | 7:06 |
| 26 | 13.0 | 6:05 | 7:05 |
| 27 | 13.0 | 6:05 | 7:03 |
| 28 | 12.9 | 6:06 | 7:02 |
| 29 | 12.9 | 6:07 | 7:01 |
| 30 | 12.9 | 6:08 | 6:59 |
| 31 | 12.8 | 6:09 | 6:58 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 4.76 kWh/m².
For context, solar energy here swings from a low near 2.24 kWh/m² to a high of 5.93 kWh/m² in May across the year — August's 4.76 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.8 | 4.7 | 4.7 | 4.7 | 4.6 | 4.6 | 4.6 | 4.6 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.1 | Bright |
| 2 | 5.1 | Bright |
| 3 | 5.1 | Bright |
| 4 | 5.1 | Bright |
| 5 | 5.1 | Bright |
| 6 | 5.0 | Bright |
| 7 | 5.0 | Bright |
| 8 | 5.0 | Bright |
| 9 | 5.0 | Bright |
| 10 | 4.9 | Bright |
| 11 | 4.9 | Bright |
| 12 | 4.9 | Bright |
| 13 | 4.8 | Bright |
| 14 | 4.8 | Bright |
| 15 | 4.8 | Bright |
| 16 | 4.8 | Bright |
| 17 | 4.7 | Bright |
| 18 | 4.7 | Bright |
| 19 | 4.7 | Bright |
| 20 | 4.6 | Bright |
| 21 | 4.6 | Bright |
| 22 | 4.6 | Bright |
| 23 | 4.6 | Bright |
| 24 | 4.5 | Bright |
| 25 | 4.5 | Bright |
| 26 | 4.5 | Bright |
| 27 | 4.5 | Bright |
| 28 | 4.5 | Bright |
| 29 | 4.5 | Bright |
| 30 | 4.5 | Bright |
| 31 | 4.5 | Bright |
Hazard calendar for Koch'ang
In August, Koch'ang sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
Koch'ang sits in the Pacific typhoon belt; the season peaks July–October.
Koch'ang's rainy season runs June–September, when most of the year's rain falls.
Is August a good time to visit Koch'ang?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is a reasonable time to visit Koch'ang for sightseeing.
What to pack for Koch'ang in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Koch'ang sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.
Sea temperature near Koch'ang in August
The nearest coast averages about 25°C in August — 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 February near 6°C.
It's comfortable for a long swim from Jun 26 to Oct 11 — 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) | 8 | 6 | 7 | 10 | 14 | 19 | 23 | 25 | 23 | 19 | 15 | 11 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Warm | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 8 | Bracing |
| Feb | 6 | Bracing |
| Mar | 7 | Bracing |
| Apr | 10 | Bracing |
| May | 14 | Bracing |
| Jun | 19 | Cool |
| Jul | 23 | Refreshing |
| Aug | 25 | Warm |
| Sep | 23 | Refreshing |
| Oct | 19 | Cool |
| Nov | 15 | Cool |
| Dec | 11 | Bracing |
UV index in Koch'ang in August
Clear-sky midday UV in August peaks 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 Koch'ang peaks around September 12 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. 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 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 7 | 7 | 8 | 8 | 7 | 8 | 5 | 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 | 2 | Moderate |
| Feb | 3 | Moderate |
| Mar | 5 | High |
| Apr | 7 | High |
| May | 7 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 7 | Very high |
| Sep | 8 | Very high |
| Oct | 5 | High |
| Nov | 4 | Moderate |
| Dec | 2 | Moderate |
Air quality in Koch'ang in August
Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.
Air quality in Koch'ang is worst in March — around 61 µg/m³ PM2.5 (unhealthy), about 2.1× the cleanest month (August, 28 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) | 41 | 48 | 61 | 54 | 45 | 39 | 29 | 28 | 33 | 35 | 38 | 34 |
| Level | Poor | Poor | Unhealthy | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate | Poor | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 41 | Poor |
| Feb | 48 | Poor |
| Mar | 61 | Unhealthy |
| Apr | 54 | Poor |
| May | 45 | Poor |
| Jun | 39 | Poor |
| Jul | 29 | Moderate |
| Aug | 28 | Moderate |
| Sep | 33 | Moderate |
| Oct | 35 | Moderate |
| Nov | 38 | Poor |
| Dec | 34 | Moderate |
Where is Koch'ang?
Koch'ang sits at 35.4°N, 126.7°E, 44 m above sea level, in South Korea. The nearest listed city is Jangseong, 17 km away.
Topography around Koch'ang
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Koch'ang.
Within 3 km, the terrain around Koch'ang has significant variations in elevation — a maximum elevation change of 403 m around an average of 91 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 730 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,720 m.
The land around Koch'ang is covered by trees (48%) and cropland (29%) within 3 km, trees (57%) and cropland (31%) within 16 km, and trees (40%), water (34%) and cropland (21%) 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 Koch'ang (35.4333°, 126.7°, elevation 44 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).