Gapyeong weather in September
In September, Gapyeong sees average daytime highs of 24°C and overnight lows near 15°C, with 133 mm of rain across 8.6 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 26°C in the first days to 22°C by the end. The sky is clear or mostly clear about 32% of the time in September, and the air most often feels comfortable.
Daylight stretches from about 12 h 54 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Gapyeong's 9th-clearest and 11th-windiest month. For the whole year in context, see Gapyeong's year-round climate.
- Daytime high
- 24°
- 4th warmest
- Overnight low
- 15°
- 9th coldest
- Rainfall
- 133 mm
- 8.6 wet days
- Daylight
- 12 h 12 min
- 6:17 AM – 6:31 PM
- Cloud cover
- 59%
- 9th clearest
- Wind
- 7 km/h
- 11th windiest
- Solar energy
- 4.12 kWh/m²
- Travel score
- 6.9
- out of 10
Temperature in September
Highs ease over the month, from about 26°C in the first days to 22°C by the end.
A typical September day in Gapyeong reaches about 24°C in the afternoon and slips back to 15°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 28°C. Set against its neighbours, September runs about 4°C cooler than August and about 6°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) | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 |
| Avg low (°C) | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 26 | 18 |
| 2 | 26 | 18 |
| 3 | 26 | 18 |
| 4 | 26 | 18 |
| 5 | 26 | 18 |
| 6 | 26 | 17 |
| 7 | 26 | 17 |
| 8 | 26 | 17 |
| 9 | 25 | 17 |
| 10 | 25 | 17 |
| 11 | 25 | 16 |
| 12 | 25 | 16 |
| 13 | 25 | 16 |
| 14 | 25 | 16 |
| 15 | 25 | 16 |
| 16 | 24 | 15 |
| 17 | 24 | 15 |
| 18 | 24 | 15 |
| 19 | 24 | 15 |
| 20 | 24 | 14 |
| 21 | 24 | 14 |
| 22 | 23 | 14 |
| 23 | 23 | 14 |
| 24 | 23 | 13 |
| 25 | 23 | 13 |
| 26 | 23 | 13 |
| 27 | 23 | 13 |
| 28 | 22 | 12 |
| 29 | 22 | 12 |
| 30 | 22 | 12 |
How September really feels in Gapyeong
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.
Gapyeong 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 | 1° / -8° | 22 | 3.8 | 3.3 | 9.7 | 0.0 |
| Feb | 4° / -5° | 28 | 4.5 | 2.9 | 10.5 | 0.2 |
| Mar | 10° / -0° | 44 | 6.6 | 2.5 | 11.7 | 2.5 |
| Apr | 17° / 5° | 80 | 8.1 | 0.2 | 12.9 | 5.6 |
| May | 22° / 11° | 107 | 8.7 | 0 | 14 | 6.9 |
| Jun | 26° / 17° | 132 | 10.1 | 0 | 14.6 | 6.5 |
| Jul | 28° / 21° | 339 | 18.1 | 0 | 14.4 | 4.9 |
| Aug | 28° / 21° | 283 | 17 | 0 | 13.5 | 5.0 |
| Sep | 24° / 15° | 133 | 8.6 | 0 | 12.3 | 6.9 |
| Oct | 19° / 8° | 56 | 5.7 | 0 | 11 | 6.7 |
| Nov | 10° / 1° | 50 | 7 | 0.8 | 10 | 2.7 |
| Dec | 3° / -5° | 26 | 5.1 | 3 | 9.4 | 0.0 |
Cloud cover in September
The sky is clear or mostly clear about 32% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 52%. 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 | 42 | 42 | 43 | 43 | 44 | 44 | 44 | 44 | 46 | 46 | 47 | 47 | 47 | 49 | 49 | 50 | 51 | 51 | 52 | 52 | 53 | 53 | 53 | 53 | 53 | 53 | 54 | 54 | 54 |
| Cloudier (%) | 59 | 58 | 58 | 57 | 57 | 56 | 56 | 56 | 56 | 54 | 54 | 53 | 53 | 53 | 51 | 51 | 50 | 49 | 49 | 48 | 48 | 47 | 47 | 47 | 47 | 47 | 47 | 46 | 46 | 46 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 41 | 59 |
| 2 | 42 | 58 |
| 3 | 42 | 58 |
| 4 | 43 | 57 |
| 5 | 43 | 57 |
| 6 | 44 | 56 |
| 7 | 44 | 56 |
| 8 | 44 | 56 |
| 9 | 44 | 56 |
| 10 | 46 | 54 |
| 11 | 46 | 54 |
| 12 | 47 | 53 |
| 13 | 47 | 53 |
| 14 | 47 | 53 |
| 15 | 49 | 51 |
| 16 | 49 | 51 |
| 17 | 50 | 50 |
| 18 | 51 | 49 |
| 19 | 51 | 49 |
| 20 | 52 | 48 |
| 21 | 52 | 48 |
| 22 | 53 | 47 |
| 23 | 53 | 47 |
| 24 | 53 | 47 |
| 25 | 53 | 47 |
| 26 | 53 | 47 |
| 27 | 53 | 47 |
| 28 | 54 | 46 |
| 29 | 54 | 46 |
| 30 | 54 | 46 |
Chance of precipitation in September
Gapyeong gets around 133 mm of rain over 8.6 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 30% 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 | 41 | 39 | 38 | 37 | 36 | 35 | 34 | 33 | 32 | 32 | 31 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 25 | 24 | 24 | 23 | 23 | 22 | 22 | 21 | 21 | 21 |
| Rain chance (%) | |
|---|---|
| 1 | 43 |
| 2 | 42 |
| 3 | 41 |
| 4 | 39 |
| 5 | 38 |
| 6 | 37 |
| 7 | 36 |
| 8 | 35 |
| 9 | 34 |
| 10 | 33 |
| 11 | 32 |
| 12 | 32 |
| 13 | 31 |
| 14 | 31 |
| 15 | 30 |
| 16 | 29 |
| 17 | 28 |
| 18 | 27 |
| 19 | 26 |
| 20 | 25 |
| 21 | 25 |
| 22 | 24 |
| 23 | 24 |
| 24 | 23 |
| 25 | 23 |
| 26 | 22 |
| 27 | 22 |
| 28 | 21 |
| 29 | 21 |
| 30 | 21 |
Humidity in September
Most of September feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the comfortable band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 17% 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 (%) | 3 | 3 | 4 | 4 | 5 | 7 | 8 | 9 | 11 | 13 | 15 | 17 | 20 | 22 | 25 | 27 | 30 | 32 | 35 | 38 | 40 | 43 | 45 | 47 | 51 | 52 | 55 | 57 | 60 | 63 |
| Comfortable (%) | 16 | 17 | 19 | 20 | 21 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 33 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 34 | 34 | 33 | 32 | 30 | 29 |
| Humid (%) | 34 | 36 | 36 | 37 | 38 | 38 | 38 | 38 | 37 | 36 | 35 | 34 | 33 | 31 | 29 | 27 | 25 | 24 | 22 | 20 | 19 | 17 | 15 | 14 | 12 | 11 | 10 | 9 | 8 | 7 |
| Muggy (%) | 30 | 29 | 27 | 25 | 24 | 23 | 22 | 21 | 19 | 18 | 17 | 16 | 15 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 1 |
| Oppressive (%) | 17 | 15 | 14 | 13 | 12 | 10 | 9 | 8 | 6 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 3 | 16 | 34 | 30 | 17 |
| 2 | 3 | 17 | 36 | 29 | 15 |
| 3 | 4 | 19 | 36 | 27 | 14 |
| 4 | 4 | 20 | 37 | 25 | 13 |
| 5 | 5 | 21 | 38 | 24 | 12 |
| 6 | 7 | 23 | 38 | 23 | 10 |
| 7 | 8 | 24 | 38 | 22 | 9 |
| 8 | 9 | 25 | 38 | 21 | 8 |
| 9 | 11 | 26 | 37 | 19 | 6 |
| 10 | 13 | 27 | 36 | 18 | 5 |
| 11 | 15 | 28 | 35 | 17 | 4 |
| 12 | 17 | 29 | 34 | 16 | 4 |
| 13 | 20 | 30 | 33 | 15 | 3 |
| 14 | 22 | 31 | 31 | 13 | 3 |
| 15 | 25 | 32 | 29 | 12 | 2 |
| 16 | 27 | 33 | 27 | 11 | 2 |
| 17 | 30 | 33 | 25 | 10 | 1 |
| 18 | 32 | 34 | 24 | 9 | 1 |
| 19 | 35 | 34 | 22 | 8 | 1 |
| 20 | 38 | 35 | 20 | 7 | 1 |
| 21 | 40 | 35 | 19 | 6 | 0 |
| 22 | 43 | 35 | 17 | 5 | 0 |
| 23 | 45 | 35 | 15 | 4 | 0 |
| 24 | 47 | 35 | 14 | 4 | 0 |
| 25 | 51 | 34 | 12 | 3 | 0 |
| 26 | 52 | 34 | 11 | 3 | 0 |
| 27 | 55 | 33 | 10 | 2 | 0 |
| 28 | 57 | 32 | 9 | 2 | 0 |
| 29 | 60 | 30 | 8 | 2 | 0 |
| 30 | 63 | 29 | 7 | 1 | 0 |
Wind in September
Winds average 7 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) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 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 |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 7 | calm |
| 2 | 7 | calm |
| 3 | 7 | calm |
| 4 | 7 | calm |
| 5 | 7 | calm |
| 6 | 7 | calm |
| 7 | 7 | calm |
| 8 | 7 | calm |
| 9 | 7 | calm |
| 10 | 7 | calm |
| 11 | 7 | calm |
| 12 | 7 | calm |
| 13 | 7 | calm |
| 14 | 7 | calm |
| 15 | 7 | calm |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 6 | calm |
| 25 | 6 | calm |
| 26 | 6 | calm |
| 27 | 6 | calm |
| 28 | 6 | calm |
| 29 | 6 | calm |
| 30 | 6 | calm |
Sunrise & sunset in September
Daylight runs from about 12 h 54 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 72 minutes over September. Sunrise moves from 6:04 AM to 6:30 AM, and sunset from 6:55 PM to 6:09 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 | 12.8 | 12.8 | 12.7 | 12.7 | 12.7 | 12.6 | 12.6 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.2 | 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 | 11.7 |
| Sunrise (AM) | 6:04 | 6:05 | 6:06 | 6:07 | 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 | 6:21 | 6:22 | 6:23 | 6:24 | 6:25 | 6:26 | 6:27 | 6:28 | 6:29 | 6:30 |
| Sunset (PM) | 6:55 | 6:54 | 6:52 | 6:51 | 6:49 | 6:48 | 6:46 | 6:44 | 6:43 | 6:41 | 6:40 | 6:38 | 6:36 | 6:35 | 6:33 | 6:31 | 6:30 | 6:28 | 6:27 | 6:25 | 6:23 | 6:22 | 6:20 | 6:19 | 6:17 | 6:15 | 6:14 | 6:12 | 6:11 | 6:09 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.9 | 6:04 | 6:55 |
| 2 | 12.8 | 6:05 | 6:54 |
| 3 | 12.8 | 6:06 | 6:52 |
| 4 | 12.7 | 6:07 | 6:51 |
| 5 | 12.7 | 6:07 | 6:49 |
| 6 | 12.7 | 6:08 | 6:48 |
| 7 | 12.6 | 6:09 | 6:46 |
| 8 | 12.6 | 6:10 | 6:44 |
| 9 | 12.5 | 6:11 | 6:43 |
| 10 | 12.5 | 6:12 | 6:41 |
| 11 | 12.4 | 6:13 | 6:40 |
| 12 | 12.4 | 6:14 | 6:38 |
| 13 | 12.4 | 6:14 | 6:36 |
| 14 | 12.3 | 6:15 | 6:35 |
| 15 | 12.3 | 6:16 | 6:33 |
| 16 | 12.2 | 6:17 | 6:31 |
| 17 | 12.2 | 6:18 | 6:30 |
| 18 | 12.2 | 6:19 | 6:28 |
| 19 | 12.1 | 6:20 | 6:27 |
| 20 | 12.1 | 6:21 | 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 | 6:19 |
| 25 | 11.9 | 6:25 | 6:17 |
| 26 | 11.8 | 6:26 | 6:15 |
| 27 | 11.8 | 6:27 | 6:14 |
| 28 | 11.7 | 6:28 | 6:12 |
| 29 | 11.7 | 6:29 | 6:11 |
| 30 | 11.7 | 6:30 | 6:09 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 4.12 kWh/m².
For context, solar energy here swings from a low near 2.34 kWh/m² to a high of 5.7 kWh/m² in May across the year — September's 4.12 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) | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
| 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 | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.1 | Bright |
| 2 | 4.1 | Bright |
| 3 | 4.1 | Bright |
| 4 | 4.1 | Bright |
| 5 | 4.1 | Bright |
| 6 | 4.1 | Bright |
| 7 | 4.1 | Bright |
| 8 | 4.1 | Bright |
| 9 | 4.1 | Bright |
| 10 | 4.1 | Bright |
| 11 | 4.1 | Bright |
| 12 | 4.1 | Bright |
| 13 | 4.1 | Bright |
| 14 | 4.1 | Bright |
| 15 | 4.1 | Bright |
| 16 | 4.1 | Bright |
| 17 | 4.1 | Bright |
| 18 | 4.1 | Bright |
| 19 | 4.1 | Bright |
| 20 | 4.1 | Bright |
| 21 | 4.1 | Bright |
| 22 | 4.1 | Bright |
| 23 | 4.1 | Bright |
| 24 | 4.1 | Bright |
| 25 | 4.0 | Bright |
| 26 | 4.0 | Bright |
| 27 | 4.0 | Bright |
| 28 | 4.0 | Bright |
| 29 | 4.0 | Moderate |
| 30 | 4.0 | Moderate |
Hazard calendar for Gapyeong
In September, Gapyeong sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Gapyeong sits in the Pacific typhoon belt; the season peaks July–October.
Gapyeong's rainy season runs July–August, when most of the year's rain falls.
Is September a good time to visit Gapyeong?
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 Gapyeong for sightseeing.
What to pack for Gapyeong in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Gapyeong sees daytime highs around 24°C and nights near 15°C. Worth packing: light clothes and rain gear. About 9 days see rain.
UV index in Gapyeong in September
Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Gapyeong peaks around August 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).
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 | 4 | 6 | 6 | 7 | 7 | 9 | 8 | 5 | 3 | 2 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | Very high | Very high | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 6 | High |
| Jun | 7 | Very high |
| Jul | 7 | Very high |
| Aug | 9 | Very high |
| Sep | 8 | Very high |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Gapyeong 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 Gapyeong is worst in March — around 123 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 106 | 108 | 123 | 104 | 96 | 91 | 79 | 78 | 97 | 115 | 118 | 100 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 106 | Unhealthy |
| Feb | 108 | Unhealthy |
| Mar | 123 | Unhealthy |
| Apr | 104 | Unhealthy |
| May | 96 | Unhealthy |
| Jun | 91 | Unhealthy |
| Jul | 79 | Unhealthy |
| Aug | 78 | Unhealthy |
| Sep | 97 | Unhealthy |
| Oct | 115 | Unhealthy |
| Nov | 118 | Unhealthy |
| Dec | 100 | Unhealthy |
Where is Gapyeong?
Gapyeong sits at 37.8°N, 127.5°E, 67 m above sea level, in South Korea. The nearest listed city is Chuncheon, 20 km away.
Topography around Gapyeong
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Gapyeong.
Within 3 km, the terrain around Gapyeong has significant variations in elevation — a maximum elevation change of 365 m around an average of 125 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,213 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,466 m.
The land around Gapyeong is covered by trees (61%) within 3 km, trees (87%) within 16 km, and trees (73%) 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 Gapyeong (37.831°, 127.5106°, elevation 67 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). 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).