Hyesan weather in August
In August, Hyesan sees average daytime highs of 23°C and overnight lows near 14°C, with 136 mm of rain across 14.2 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.
Highs ease over the month, from about 24°C in the first days to 21°C by the end. The sky is clear or mostly clear about 19% of the time in August, and the air most often feels humid.
Daylight stretches from about 14 h 18 min at the start of August to 13 hours by month's end. Set against the rest of the year, August is Hyesan's 10th-clearest and 12th-windiest month. For the whole year in context, see Hyesan's year-round climate.
- Daytime high
- 23°
- 2nd warmest
- Overnight low
- 14°
- 11th coldest
- Rainfall
- 136 mm
- 14.2 wet days
- Daylight
- 13 h 42 min
- 5:41 AM – 7:22 PM
- Cloud cover
- 67%
- 10th clearest
- Wind
- 6 km/h
- 12th windiest
- Solar energy
- 4.65 kWh/m²
- Travel score
- 6.0
- out of 10
Hyesan is city in North Korea.
- Density
- 696/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Highs ease over the month, from about 24°C in the first days to 21°C by the end.
A typical August day in Hyesan reaches about 23°C in the afternoon and slips back to 14°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 26°C. Set against its neighbours, August runs on par with July and about 5°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) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 |
| Avg low (°C) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 24 | 15 |
| 2 | 24 | 15 |
| 3 | 24 | 15 |
| 4 | 24 | 15 |
| 5 | 24 | 15 |
| 6 | 24 | 15 |
| 7 | 24 | 15 |
| 8 | 24 | 15 |
| 9 | 24 | 15 |
| 10 | 24 | 15 |
| 11 | 24 | 15 |
| 12 | 24 | 15 |
| 13 | 24 | 14 |
| 14 | 23 | 14 |
| 15 | 23 | 14 |
| 16 | 23 | 14 |
| 17 | 23 | 14 |
| 18 | 23 | 14 |
| 19 | 23 | 13 |
| 20 | 23 | 13 |
| 21 | 22 | 13 |
| 22 | 22 | 13 |
| 23 | 22 | 12 |
| 24 | 22 | 12 |
| 25 | 22 | 12 |
| 26 | 22 | 12 |
| 27 | 22 | 12 |
| 28 | 21 | 11 |
| 29 | 21 | 11 |
| 30 | 21 | 11 |
| 31 | 21 | 11 |
How August really feels in Hyesan
Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Hyesan weather by month
How August compares with the rest of the year at a glance. August is the 2nd-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 | -10° / -22° | 11 | 3.2 | 5 | 9.4 | 0.0 |
| Feb | -6° / -19° | 18 | 4.6 | 6.1 | 10.3 | 0.0 |
| Mar | 1° / -11° | 33 | 7.9 | 8.5 | 11.7 | 0.0 |
| Apr | 10° / -2° | 56 | 10.5 | 7.1 | 13.1 | 2.0 |
| May | 16° / 5° | 95 | 14.9 | 2 | 14.3 | 4.5 |
| Jun | 20° / 10° | 97 | 15.5 | 0 | 14.9 | 5.4 |
| Jul | 23° / 14° | 164 | 17.3 | 0 | 14.7 | 5.6 |
| Aug | 23° / 14° | 136 | 14.2 | 0 | 13.7 | 6.0 |
| Sep | 18° / 7° | 71 | 7.9 | 0.1 | 12.3 | 6.1 |
| Oct | 11° / -1° | 43 | 7.6 | 3 | 10.9 | 2.9 |
| Nov | 1° / -10° | 38 | 7.7 | 7.4 | 9.7 | 0.0 |
| Dec | -8° / -20° | 18 | 5.2 | 7 | 9.1 | 0.0 |
Cloud cover in August
The sky is clear or mostly clear about 19% of the time in August.
Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 61%. Skies tend to open up as the month goes on.
| 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 (%) | 33 | 34 | 34 | 36 | 36 | 37 | 37 | 38 | 38 | 38 | 38 | 38 | 39 | 39 | 39 | 39 | 39 | 38 | 39 | 39 | 39 | 40 | 40 | 40 | 42 | 42 | 42 | 43 | 44 | 44 | 45 |
| Cloudier (%) | 67 | 66 | 66 | 64 | 64 | 63 | 63 | 62 | 62 | 62 | 62 | 62 | 61 | 61 | 61 | 61 | 61 | 62 | 61 | 61 | 61 | 60 | 60 | 60 | 58 | 58 | 58 | 57 | 56 | 56 | 55 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 33 | 67 |
| 2 | 34 | 66 |
| 3 | 34 | 66 |
| 4 | 36 | 64 |
| 5 | 36 | 64 |
| 6 | 37 | 63 |
| 7 | 37 | 63 |
| 8 | 38 | 62 |
| 9 | 38 | 62 |
| 10 | 38 | 62 |
| 11 | 38 | 62 |
| 12 | 38 | 62 |
| 13 | 39 | 61 |
| 14 | 39 | 61 |
| 15 | 39 | 61 |
| 16 | 39 | 61 |
| 17 | 39 | 61 |
| 18 | 38 | 62 |
| 19 | 39 | 61 |
| 20 | 39 | 61 |
| 21 | 39 | 61 |
| 22 | 40 | 60 |
| 23 | 40 | 60 |
| 24 | 40 | 60 |
| 25 | 42 | 58 |
| 26 | 42 | 58 |
| 27 | 42 | 58 |
| 28 | 43 | 57 |
| 29 | 44 | 56 |
| 30 | 44 | 56 |
| 31 | 45 | 55 |
Chance of precipitation in August
Hyesan gets around 136 mm of rain over 14.2 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 46% and peaks near 56% on the wettest days. The odds ease toward the end of the month.
| 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 (%) | 56 | 56 | 56 | 55 | 55 | 54 | 53 | 52 | 51 | 51 | 50 | 49 | 48 | 47 | 46 | 46 | 45 | 44 | 43 | 42 | 41 | 41 | 40 | 39 | 39 | 38 | 38 | 37 | 37 | 36 | 36 |
| Rain chance (%) | |
|---|---|
| 1 | 56 |
| 2 | 56 |
| 3 | 56 |
| 4 | 55 |
| 5 | 55 |
| 6 | 54 |
| 7 | 53 |
| 8 | 52 |
| 9 | 51 |
| 10 | 51 |
| 11 | 50 |
| 12 | 49 |
| 13 | 48 |
| 14 | 47 |
| 15 | 46 |
| 16 | 46 |
| 17 | 45 |
| 18 | 44 |
| 19 | 43 |
| 20 | 42 |
| 21 | 41 |
| 22 | 41 |
| 23 | 40 |
| 24 | 39 |
| 25 | 39 |
| 26 | 38 |
| 27 | 38 |
| 28 | 37 |
| 29 | 37 |
| 30 | 36 |
| 31 | 36 |
Humidity in August
Most of August feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the humid band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 7% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 4 | 4 | 5 | 5 | 6 | 7 | 8 | 9 | 10 | 12 | 13 | 15 | 17 | 19 | 22 | 24 | 27 | 30 | 33 | 36 | 39 | 42 | 45 | 48 | 51 | 54 | 56 | 59 | 61 | 64 | 67 |
| Comfortable (%) | 28 | 28 | 28 | 29 | 29 | 30 | 30 | 31 | 32 | 32 | 33 | 34 | 35 | 36 | 36 | 37 | 37 | 37 | 37 | 37 | 36 | 36 | 35 | 34 | 33 | 32 | 31 | 29 | 28 | 26 | 24 |
| Humid (%) | 55 | 56 | 55 | 54 | 54 | 52 | 51 | 50 | 48 | 46 | 44 | 41 | 39 | 37 | 34 | 32 | 29 | 27 | 24 | 22 | 21 | 19 | 17 | 16 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| Muggy (%) | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 5 | 4 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 4 | 28 | 55 | 13 |
| 2 | 4 | 28 | 56 | 12 |
| 3 | 5 | 28 | 55 | 12 |
| 4 | 5 | 29 | 54 | 12 |
| 5 | 6 | 29 | 54 | 11 |
| 6 | 7 | 30 | 52 | 11 |
| 7 | 8 | 30 | 51 | 11 |
| 8 | 9 | 31 | 50 | 10 |
| 9 | 10 | 32 | 48 | 10 |
| 10 | 12 | 32 | 46 | 10 |
| 11 | 13 | 33 | 44 | 10 |
| 12 | 15 | 34 | 41 | 9 |
| 13 | 17 | 35 | 39 | 9 |
| 14 | 19 | 36 | 37 | 8 |
| 15 | 22 | 36 | 34 | 8 |
| 16 | 24 | 37 | 32 | 7 |
| 17 | 27 | 37 | 29 | 7 |
| 18 | 30 | 37 | 27 | 6 |
| 19 | 33 | 37 | 24 | 6 |
| 20 | 36 | 37 | 22 | 5 |
| 21 | 39 | 36 | 21 | 4 |
| 22 | 42 | 36 | 19 | 3 |
| 23 | 45 | 35 | 17 | 3 |
| 24 | 48 | 34 | 16 | 2 |
| 25 | 51 | 33 | 14 | 2 |
| 26 | 54 | 32 | 13 | 1 |
| 27 | 56 | 31 | 12 | 1 |
| 28 | 59 | 29 | 11 | 1 |
| 29 | 61 | 28 | 10 | 1 |
| 30 | 64 | 26 | 9 | 1 |
| 31 | 67 | 24 | 8 | 1 |
Wind in August
Winds average 6 km/h in August, the calmest month.
Across August, daily wind ranges from about 6 km/h on the calmest days to 6 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) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| 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 | 6 | calm |
| 2 | 6 | calm |
| 3 | 6 | calm |
| 4 | 6 | calm |
| 5 | 6 | calm |
| 6 | 6 | calm |
| 7 | 6 | calm |
| 8 | 6 | calm |
| 9 | 6 | calm |
| 10 | 6 | calm |
| 11 | 6 | calm |
| 12 | 6 | calm |
| 13 | 6 | calm |
| 14 | 6 | calm |
| 15 | 6 | calm |
| 16 | 6 | calm |
| 17 | 6 | calm |
| 18 | 6 | calm |
| 19 | 6 | calm |
| 20 | 6 | calm |
| 21 | 6 | calm |
| 22 | 6 | calm |
| 23 | 6 | calm |
| 24 | 6 | calm |
| 25 | 6 | calm |
| 26 | 6 | calm |
| 27 | 6 | calm |
| 28 | 6 | calm |
| 29 | 6 | calm |
| 30 | 6 | calm |
| 31 | 6 | calm |
Sunrise & sunset in August
Daylight runs from about 14 h 18 min at the start of August to 13 hours by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 78 minutes over August. Sunrise moves from 5:26 AM to 5:57 AM, and sunset from 7:41 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) | 14.3 | 14.2 | 14.2 | 14.1 | 14.1 | 14.1 | 14.0 | 14.0 | 14.0 | 13.9 | 13.9 | 13.8 | 13.8 | 13.8 | 13.7 | 13.7 | 13.6 | 13.6 | 13.5 | 13.5 | 13.5 | 13.4 | 13.4 | 13.3 | 13.3 | 13.2 | 13.2 | 13.2 | 13.1 | 13.1 | 13.0 |
| Sunrise (AM) | 5:26 | 5:27 | 5:28 | 5:29 | 5:30 | 5:31 | 5:32 | 5:33 | 5:34 | 5:35 | 5:36 | 5:37 | 5:38 | 5:39 | 5:40 | 5:41 | 5:42 | 5:43 | 5:44 | 5:45 | 5:46 | 5:47 | 5:48 | 5:49 | 5:51 | 5:52 | 5:53 | 5:54 | 5:55 | 5:56 | 5:57 |
| Sunset (PM) | 7:41 | 7:40 | 7:39 | 7:37 | 7:36 | 7:35 | 7:34 | 7:33 | 7:31 | 7:30 | 7:29 | 7:27 | 7:26 | 7:25 | 7:23 | 7:22 | 7:20 | 7:19 | 7:17 | 7:16 | 7:14 | 7:13 | 7:11 | 7:09 | 7:08 | 7:06 | 7:05 | 7:03 | 7:01 | 7:00 | 6:58 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.3 | 5:26 | 7:41 |
| 2 | 14.2 | 5:27 | 7:40 |
| 3 | 14.2 | 5:28 | 7:39 |
| 4 | 14.1 | 5:29 | 7:37 |
| 5 | 14.1 | 5:30 | 7:36 |
| 6 | 14.1 | 5:31 | 7:35 |
| 7 | 14.0 | 5:32 | 7:34 |
| 8 | 14.0 | 5:33 | 7:33 |
| 9 | 14.0 | 5:34 | 7:31 |
| 10 | 13.9 | 5:35 | 7:30 |
| 11 | 13.9 | 5:36 | 7:29 |
| 12 | 13.8 | 5:37 | 7:27 |
| 13 | 13.8 | 5:38 | 7:26 |
| 14 | 13.8 | 5:39 | 7:25 |
| 15 | 13.7 | 5:40 | 7:23 |
| 16 | 13.7 | 5:41 | 7:22 |
| 17 | 13.6 | 5:42 | 7:20 |
| 18 | 13.6 | 5:43 | 7:19 |
| 19 | 13.5 | 5:44 | 7:17 |
| 20 | 13.5 | 5:45 | 7:16 |
| 21 | 13.5 | 5:46 | 7:14 |
| 22 | 13.4 | 5:47 | 7:13 |
| 23 | 13.4 | 5:48 | 7:11 |
| 24 | 13.3 | 5:49 | 7:09 |
| 25 | 13.3 | 5:51 | 7:08 |
| 26 | 13.2 | 5:52 | 7:06 |
| 27 | 13.2 | 5:53 | 7:05 |
| 28 | 13.2 | 5:54 | 7:03 |
| 29 | 13.1 | 5:55 | 7:01 |
| 30 | 13.1 | 5:56 | 7:00 |
| 31 | 13.0 | 5:57 | 6:58 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 4.65 kWh/m².
For context, solar energy here swings from a low near 2.21 kWh/m² to a high of 5.68 kWh/m² in May across the year — August's 4.65 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) | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 | 4.6 |
| 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 | 4.7 | Bright |
| 2 | 4.7 | Bright |
| 3 | 4.7 | Bright |
| 4 | 4.7 | Bright |
| 5 | 4.7 | Bright |
| 6 | 4.7 | Bright |
| 7 | 4.7 | Bright |
| 8 | 4.7 | Bright |
| 9 | 4.7 | Bright |
| 10 | 4.7 | Bright |
| 11 | 4.7 | Bright |
| 12 | 4.7 | Bright |
| 13 | 4.6 | Bright |
| 14 | 4.6 | Bright |
| 15 | 4.6 | Bright |
| 16 | 4.6 | Bright |
| 17 | 4.6 | Bright |
| 18 | 4.6 | Bright |
| 19 | 4.6 | Bright |
| 20 | 4.6 | Bright |
| 21 | 4.6 | Bright |
| 22 | 4.6 | Bright |
| 23 | 4.6 | Bright |
| 24 | 4.6 | Bright |
| 25 | 4.6 | Bright |
| 26 | 4.6 | Bright |
| 27 | 4.6 | Bright |
| 28 | 4.6 | Bright |
| 29 | 4.6 | Bright |
| 30 | 4.6 | Bright |
| 31 | 4.6 | Bright |
Hazard calendar for Hyesan
In August, Hyesan sits inside its rainy season season. The full year is below, with each hazard's peak months called out.
Hyesan's rainy season runs May–August, when most of the year's rain falls.
Is August a good time to visit Hyesan?
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 Hyesan for sightseeing.
What to pack for Hyesan in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Hyesan sees daytime highs around 23°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 14 days see rain.
UV index in Hyesan in August
Clear-sky midday UV in August peaks 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 Hyesan peaks around August 18 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) | 2 | 2 | 4 | 6 | 7 | 7 | 6 | 9 | 7 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | High | Very high | Very high | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 7 | Very high |
| Jun | 7 | Very high |
| Jul | 6 | High |
| Aug | 9 | Very high |
| Sep | 7 | Very high |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Air quality in Hyesan 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 Hyesan is worst in March — around 36 µg/m³ PM2.5 (poor), about 2.4× the cleanest month (August, 15 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) | 28 | 29 | 36 | 34 | 29 | 22 | 18 | 15 | 18 | 26 | 23 | 25 |
| Level | Moderate | Moderate | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 28 | Moderate |
| Feb | 29 | Moderate |
| Mar | 36 | Poor |
| Apr | 34 | Moderate |
| May | 29 | Moderate |
| Jun | 22 | Moderate |
| Jul | 18 | Moderate |
| Aug | 15 | Moderate |
| Sep | 18 | Moderate |
| Oct | 26 | Moderate |
| Nov | 23 | Moderate |
| Dec | 25 | Moderate |
Where is Hyesan?
Hyesan sits at 41.4°N, 128.2°E, 709 m above sea level, in North Korea. The nearest listed city is Hyesan-dong, 1.0 km away.
Topography around Hyesan
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hyesan.
Within 3 km, the terrain around Hyesan has significant variations in elevation — a maximum elevation change of 366 m around an average of 790 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 990 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,277 m.
The land around Hyesan is covered by cropland (33%), artificial surfaces (27%) and trees (22%) within 3 km, trees (48%) and grassland (28%) within 16 km, and trees (85%) within 80 km.
North Korea travel facts
- Travel advisory
- Level 4
- Do Not Travel
- Power plugs
- Type C / F
- 220 V · 50 Hz
- Safe drinking water
- 67%
- of population, 2023
- Road deaths
- 24.2
- per 100k/yr, 2019
- Income group
- Low
- World Bank
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 Hyesan (41.4017°, 128.1778°, elevation 709 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. 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).