Hamhŭng weather in September
In September, Hamhŭng sees average daytime highs of 23°C and overnight lows near 14°C, with 131 mm of rain across 9.4 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 3rd-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 36% of the time in September, and the air most often feels dry.
Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Hamhŭng's 8th-clearest and 10th-windiest month. For the whole year in context, see Hamhŭng's year-round climate.
- Daytime high
- 23°
- 4th warmest
- Overnight low
- 14°
- 9th coldest
- Rainfall
- 131 mm
- 9.4 wet days
- Daylight
- 12 h 18 min
- 6:16 AM – 6:32 PM
- Cloud cover
- 56%
- 8th clearest
- Wind
- 6 km/h
- 10th windiest
- Solar energy
- 4.31 kWh/m²
- Travel score
- 6.8
- out of 10
Hamhŭng is city in North Korea.
- Density
- 1,694/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in September
Highs ease over the month, from about 24°C in the first days to 21°C by the end.
A typical September day in Hamhŭng 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, September runs about 4°C cooler than August and about 5°C warmer than October.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 25 | 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 | 21 | 21 | 20 |
| Avg low (°C) | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 25 | 17 |
| 2 | 25 | 17 |
| 3 | 24 | 17 |
| 4 | 24 | 17 |
| 5 | 24 | 16 |
| 6 | 24 | 16 |
| 7 | 24 | 16 |
| 8 | 24 | 16 |
| 9 | 24 | 15 |
| 10 | 23 | 15 |
| 11 | 23 | 15 |
| 12 | 23 | 15 |
| 13 | 23 | 15 |
| 14 | 23 | 14 |
| 15 | 23 | 14 |
| 16 | 23 | 14 |
| 17 | 22 | 14 |
| 18 | 22 | 13 |
| 19 | 22 | 13 |
| 20 | 22 | 13 |
| 21 | 22 | 13 |
| 22 | 22 | 13 |
| 23 | 22 | 12 |
| 24 | 21 | 12 |
| 25 | 21 | 12 |
| 26 | 21 | 12 |
| 27 | 21 | 11 |
| 28 | 21 | 11 |
| 29 | 21 | 11 |
| 30 | 20 | 11 |
How September really feels in Hamhŭng
Once humidity and wind are folded in, September 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.
September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Hamhŭng weather by month
How September compares with the rest of the year at a glance. September is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 0° / -10° | 41 | 6.7 | 7.4 | 9.5 | 0.0 |
| Feb | 2° / -8° | 36 | 6.1 | 6.1 | 10.4 | 0.0 |
| Mar | 8° / -2° | 48 | 7.5 | 5.5 | 11.7 | 1.3 |
| Apr | 15° / 4° | 60 | 7.3 | 1.1 | 13 | 4.8 |
| May | 20° / 10° | 88 | 8.4 | 0 | 14.2 | 6.6 |
| Jun | 24° / 15° | 105 | 10.6 | 0 | 14.8 | 6.6 |
| Jul | 26° / 19° | 226 | 15.7 | 0 | 14.5 | 5.6 |
| Aug | 26° / 20° | 243 | 16.1 | 0 | 13.6 | 5.6 |
| Sep | 23° / 14° | 131 | 9.4 | 0 | 12.3 | 6.8 |
| Oct | 17° / 7° | 67 | 7.8 | 0.1 | 10.9 | 6.0 |
| Nov | 9° / 0° | 76 | 8.9 | 3.1 | 9.8 | 2.0 |
| Dec | 2° / -7° | 44 | 6.4 | 5.8 | 9.2 | 0.0 |
Cloud cover in September
The sky is clear or mostly clear about 36% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 51%. 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 41 | 41 | 42 | 42 | 43 | 43 | 44 | 44 | 45 | 44 | 45 | 46 | 47 | 48 | 48 | 50 | 50 | 50 | 51 | 53 | 53 | 54 | 55 | 56 | 56 | 57 | 58 | 58 | 58 | 59 |
| Cloudier (%) | 59 | 59 | 58 | 58 | 57 | 57 | 56 | 56 | 55 | 56 | 55 | 54 | 53 | 52 | 52 | 50 | 50 | 50 | 49 | 47 | 47 | 46 | 45 | 44 | 44 | 43 | 42 | 42 | 42 | 41 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 41 | 59 |
| 2 | 41 | 59 |
| 3 | 42 | 58 |
| 4 | 42 | 58 |
| 5 | 43 | 57 |
| 6 | 43 | 57 |
| 7 | 44 | 56 |
| 8 | 44 | 56 |
| 9 | 45 | 55 |
| 10 | 44 | 56 |
| 11 | 45 | 55 |
| 12 | 46 | 54 |
| 13 | 47 | 53 |
| 14 | 48 | 52 |
| 15 | 48 | 52 |
| 16 | 50 | 50 |
| 17 | 50 | 50 |
| 18 | 50 | 50 |
| 19 | 51 | 49 |
| 20 | 53 | 47 |
| 21 | 53 | 47 |
| 22 | 54 | 46 |
| 23 | 55 | 45 |
| 24 | 56 | 44 |
| 25 | 56 | 44 |
| 26 | 57 | 43 |
| 27 | 58 | 42 |
| 28 | 58 | 42 |
| 29 | 58 | 42 |
| 30 | 59 | 41 |
Chance of precipitation in September
Hamhŭng gets around 131 mm of rain over 9.4 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 32% and peaks near 43% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 43 | 42 | 40 | 39 | 39 | 38 | 37 | 36 | 35 | 35 | 34 | 33 | 33 | 32 | 31 | 31 | 30 | 30 | 29 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 26 | 25 | 25 | 25 |
| Rain chance (%) | |
|---|---|
| 1 | 43 |
| 2 | 42 |
| 3 | 40 |
| 4 | 39 |
| 5 | 39 |
| 6 | 38 |
| 7 | 37 |
| 8 | 36 |
| 9 | 35 |
| 10 | 35 |
| 11 | 34 |
| 12 | 33 |
| 13 | 33 |
| 14 | 32 |
| 15 | 31 |
| 16 | 31 |
| 17 | 30 |
| 18 | 30 |
| 19 | 29 |
| 20 | 28 |
| 21 | 28 |
| 22 | 27 |
| 23 | 27 |
| 24 | 26 |
| 25 | 26 |
| 26 | 26 |
| 27 | 26 |
| 28 | 25 |
| 29 | 25 |
| 30 | 25 |
Humidity in September
Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the dry band about 36% of days. Sticky, muggy-or-worse air turns up on roughly 9% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 7 | 8 | 9 | 10 | 11 | 13 | 14 | 16 | 18 | 20 | 23 | 25 | 28 | 30 | 33 | 36 | 38 | 41 | 44 | 46 | 49 | 52 | 54 | 57 | 61 | 64 | 66 | 70 | 71 | 74 |
| Comfortable (%) | 22 | 23 | 25 | 26 | 27 | 29 | 30 | 31 | 32 | 33 | 33 | 34 | 34 | 34 | 34 | 34 | 35 | 35 | 35 | 34 | 34 | 33 | 33 | 32 | 31 | 29 | 28 | 26 | 25 | 23 |
| Humid (%) | 37 | 38 | 38 | 38 | 38 | 38 | 37 | 37 | 36 | 35 | 34 | 33 | 31 | 30 | 28 | 26 | 24 | 22 | 20 | 18 | 16 | 14 | 12 | 10 | 8 | 7 | 6 | 4 | 4 | 3 |
| Muggy (%) | 29 | 27 | 25 | 23 | 21 | 19 | 17 | 15 | 13 | 11 | 10 | 8 | 7 | 6 | 5 | 4 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Oppressive (%) | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 7 | 22 | 37 | 29 | 5 |
| 2 | 8 | 23 | 38 | 27 | 4 |
| 3 | 9 | 25 | 38 | 25 | 4 |
| 4 | 10 | 26 | 38 | 23 | 3 |
| 5 | 11 | 27 | 38 | 21 | 3 |
| 6 | 13 | 29 | 38 | 19 | 2 |
| 7 | 14 | 30 | 37 | 17 | 2 |
| 8 | 16 | 31 | 37 | 15 | 1 |
| 9 | 18 | 32 | 36 | 13 | 1 |
| 10 | 20 | 33 | 35 | 11 | 1 |
| 11 | 23 | 33 | 34 | 10 | 1 |
| 12 | 25 | 34 | 33 | 8 | 0 |
| 13 | 28 | 34 | 31 | 7 | 0 |
| 14 | 30 | 34 | 30 | 6 | 0 |
| 15 | 33 | 34 | 28 | 5 | 0 |
| 16 | 36 | 34 | 26 | 4 | 0 |
| 17 | 38 | 35 | 24 | 3 | 0 |
| 18 | 41 | 35 | 22 | 3 | 0 |
| 19 | 44 | 35 | 20 | 2 | 0 |
| 20 | 46 | 34 | 18 | 2 | 0 |
| 21 | 49 | 34 | 16 | 1 | 0 |
| 22 | 52 | 33 | 14 | 1 | 0 |
| 23 | 54 | 33 | 12 | 1 | 0 |
| 24 | 57 | 32 | 10 | 1 | 0 |
| 25 | 61 | 31 | 8 | 0 | 0 |
| 26 | 64 | 29 | 7 | 0 | 0 |
| 27 | 66 | 28 | 6 | 0 | 0 |
| 28 | 70 | 26 | 4 | 0 | 0 |
| 29 | 71 | 25 | 4 | 0 | 0 |
| 30 | 74 | 23 | 3 | 0 | 0 |
Wind in September
Winds average 6 km/h in September.
Across September, daily wind ranges from about 6 km/h on the calmest days to 7 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| 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 |
| 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 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
Sunrise & sunset in September
Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 78 minutes over September. Sunrise moves from 6:02 AM to 6:30 AM, and sunset from 6:57 PM to 6:08 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.9 | 12.9 | 12.8 | 12.8 | 12.7 | 12.7 | 12.7 | 12.6 | 12.6 | 12.5 | 12.5 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.1 | 12.1 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.8 | 11.8 | 11.7 | 11.7 | 11.6 |
| Sunrise (AM) | 6:02 | 6:03 | 6:04 | 6:05 | 6:06 | 6:07 | 6:08 | 6:09 | 6:10 | 6:11 | 6:12 | 6:13 | 6:14 | 6:14 | 6:15 | 6:16 | 6:17 | 6:18 | 6:19 | 6:20 | 6:21 | 6:22 | 6:23 | 6:24 | 6:25 | 6:26 | 6:27 | 6:28 | 6:29 | 6:30 |
| Sunset (PM) | 6:57 | 6:56 | 6:54 | 6:52 | 6:51 | 6:49 | 6:47 | 6:46 | 6:44 | 6:42 | 6:41 | 6:39 | 6:37 | 6:35 | 6:34 | 6:32 | 6:30 | 6:28 | 6:27 | 6:25 | 6:23 | 6:22 | 6:20 | 6:18 | 6:16 | 6:15 | 6:13 | 6:11 | 6:10 | 6:08 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.9 | 6:02 | 6:57 |
| 2 | 12.9 | 6:03 | 6:56 |
| 3 | 12.8 | 6:04 | 6:54 |
| 4 | 12.8 | 6:05 | 6:52 |
| 5 | 12.7 | 6:06 | 6:51 |
| 6 | 12.7 | 6:07 | 6:49 |
| 7 | 12.7 | 6:08 | 6:47 |
| 8 | 12.6 | 6:09 | 6:46 |
| 9 | 12.6 | 6:10 | 6:44 |
| 10 | 12.5 | 6:11 | 6:42 |
| 11 | 12.5 | 6:12 | 6:41 |
| 12 | 12.4 | 6:13 | 6:39 |
| 13 | 12.4 | 6:14 | 6:37 |
| 14 | 12.3 | 6:14 | 6:35 |
| 15 | 12.3 | 6:15 | 6:34 |
| 16 | 12.3 | 6:16 | 6:32 |
| 17 | 12.2 | 6:17 | 6:30 |
| 18 | 12.2 | 6:18 | 6:28 |
| 19 | 12.1 | 6:19 | 6:27 |
| 20 | 12.1 | 6:20 | 6:25 |
| 21 | 12.0 | 6:21 | 6:23 |
| 22 | 12.0 | 6:22 | 6:22 |
| 23 | 11.9 | 6:23 | 6:20 |
| 24 | 11.9 | 6:24 | 6:18 |
| 25 | 11.9 | 6:25 | 6:16 |
| 26 | 11.8 | 6:26 | 6:15 |
| 27 | 11.8 | 6:27 | 6:13 |
| 28 | 11.7 | 6:28 | 6:11 |
| 29 | 11.7 | 6:29 | 6:10 |
| 30 | 11.6 | 6:30 | 6:08 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 4.31 kWh/m².
For context, solar energy here swings from a low near 2.27 kWh/m² to a high of 5.92 kWh/m² in May across the year — September's 4.31 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.1 | 4.1 |
| 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 |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.4 | Bright |
| 2 | 4.4 | Bright |
| 3 | 4.4 | Bright |
| 4 | 4.4 | Bright |
| 5 | 4.4 | Bright |
| 6 | 4.4 | Bright |
| 7 | 4.4 | Bright |
| 8 | 4.4 | Bright |
| 9 | 4.4 | Bright |
| 10 | 4.4 | Bright |
| 11 | 4.4 | Bright |
| 12 | 4.3 | Bright |
| 13 | 4.3 | Bright |
| 14 | 4.3 | Bright |
| 15 | 4.3 | Bright |
| 16 | 4.3 | Bright |
| 17 | 4.3 | Bright |
| 18 | 4.3 | Bright |
| 19 | 4.3 | Bright |
| 20 | 4.3 | Bright |
| 21 | 4.3 | Bright |
| 22 | 4.3 | Bright |
| 23 | 4.2 | Bright |
| 24 | 4.2 | Bright |
| 25 | 4.2 | Bright |
| 26 | 4.2 | Bright |
| 27 | 4.2 | Bright |
| 28 | 4.2 | Bright |
| 29 | 4.1 | Bright |
| 30 | 4.1 | Bright |
Hazard calendar for Hamhŭng
In September, Hamhŭng sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
Hamhŭng sits in the Pacific typhoon belt; the season peaks July–October.
Hamhŭng's rainy season runs July–September, when most of the year's rain falls.
Is September a good time to visit Hamhŭng?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a reasonable time to visit Hamhŭng for sightseeing.
What to pack for Hamhŭng in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Hamhŭng sees daytime highs around 23°C and nights near 14°C. Worth packing: light clothes and rain gear. About 9 days see rain.
Sea temperature near Hamhŭng in September
The nearest coast averages about 22°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 29 km away) is warmest in August at about 24°C and coldest in February near 4°C.
It's comfortable for a long swim from Jul 5 to Sep 28 — about 2.8 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 5 | 4 | 5 | 8 | 12 | 18 | 22 | 24 | 22 | 18 | 13 | 8 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing | Refreshing | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 5 | Bracing |
| Feb | 4 | Bracing |
| Mar | 5 | Bracing |
| Apr | 8 | Bracing |
| May | 12 | Bracing |
| Jun | 18 | Cool |
| Jul | 22 | Refreshing |
| Aug | 24 | Refreshing |
| Sep | 22 | Refreshing |
| Oct | 18 | Cool |
| Nov | 13 | Bracing |
| Dec | 8 | Bracing |
UV index in Hamhŭng in September
Clear-sky midday UV in September 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 Hamhŭng peaks around August 20 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 21 at about 2 (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 | 3 | 4 | 5 | 7 | 7 | 6 | 8 | 7 | 4 | 2 | 2 |
| Level | Low | Moderate | Moderate | High | Very high | High | High | Very high | Very high | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 5 | High |
| May | 7 | Very high |
| Jun | 7 | High |
| Jul | 6 | High |
| Aug | 8 | Very high |
| Sep | 7 | Very high |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in Hamhŭng in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Hamhŭng is worst in March — around 96 µg/m³ PM2.5 (unhealthy), about 2.3× the cleanest month (July, 43 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) | 95 | 96 | 96 | 80 | 64 | 51 | 43 | 46 | 62 | 83 | 87 | 84 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Poor | Poor | Unhealthy | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 95 | Unhealthy |
| Feb | 96 | Unhealthy |
| Mar | 96 | Unhealthy |
| Apr | 80 | Unhealthy |
| May | 64 | Unhealthy |
| Jun | 51 | Poor |
| Jul | 43 | Poor |
| Aug | 46 | Poor |
| Sep | 62 | Unhealthy |
| Oct | 83 | Unhealthy |
| Nov | 87 | Unhealthy |
| Dec | 84 | Unhealthy |
Where is Hamhŭng?
Hamhŭng sits at 39.9°N, 127.5°E, 16 m above sea level, in North Korea. The nearest listed city is Hŭngnam, 12 km away.
Topography around Hamhŭng
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Hamhŭng.
Within 3 km, the terrain around Hamhŭng has significant variations in elevation — a maximum elevation change of 302 m around an average of 29 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 595 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,400 m.
The land around Hamhŭng is covered by artificial surfaces (47%) and cropland (22%) within 3 km, cropland (50%) and trees (27%) within 16 km, and trees (58%) and water (24%) 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 Hamhŭng (39.9183°, 127.5364°, elevation 16 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).