Gyeongsan-si weather in September
In September, Gyeongsan-si sees average daytime highs of 26°C and overnight lows near 17°C, with 135 mm of rain across 8.7 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.
Highs ease over the month, from about 28°C in the first days to 24°C by the end. The sky is clear or mostly clear about 28% of the time in September, and the air most often feels humid.
Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Gyeongsan-si's 9th-clearest and 10th-windiest month. For the whole year in context, see Gyeongsan-si's year-round climate.
- Daytime high
- 26°
- 4th warmest
- Overnight low
- 17°
- 9th coldest
- Rainfall
- 135 mm
- 8.7 wet days
- Daylight
- 12 h 12 min
- 6:13 AM – 6:26 PM
- Cloud cover
- 62%
- 9th clearest
- Wind
- 8 km/h
- 10th windiest
- Solar energy
- 3.94 kWh/m²
- Travel score
- 6.8
- out of 10
Gyeongsan-si is city in North Gyeongsang Province, South Korea.
- Density
- 649/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 28°C in the first days to 24°C by the end.
A typical September day in Gyeongsan-si reaches about 26°C in the afternoon and slips back to 17°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 29°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) | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 |
| Avg low (°C) | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 13 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 20 |
| 2 | 28 | 20 |
| 3 | 28 | 19 |
| 4 | 28 | 19 |
| 5 | 27 | 19 |
| 6 | 27 | 19 |
| 7 | 27 | 19 |
| 8 | 27 | 18 |
| 9 | 27 | 18 |
| 10 | 27 | 18 |
| 11 | 26 | 18 |
| 12 | 26 | 18 |
| 13 | 26 | 17 |
| 14 | 26 | 17 |
| 15 | 26 | 17 |
| 16 | 26 | 17 |
| 17 | 26 | 16 |
| 18 | 25 | 16 |
| 19 | 25 | 16 |
| 20 | 25 | 16 |
| 21 | 25 | 16 |
| 22 | 25 | 15 |
| 23 | 25 | 15 |
| 24 | 25 | 15 |
| 25 | 24 | 15 |
| 26 | 24 | 14 |
| 27 | 24 | 14 |
| 28 | 24 | 14 |
| 29 | 24 | 14 |
| 30 | 24 | 13 |
How September really feels in Gyeongsan-si
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.
Gyeongsan-si 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 | 5° / -4° | 22 | 3.3 | 1 | 9.8 | 0.2 |
| Feb | 8° / -2° | 29 | 4 | 0.9 | 10.6 | 1.6 |
| Mar | 13° / 2° | 60 | 6.7 | 1 | 11.7 | 4.2 |
| Apr | 20° / 7° | 77 | 7.2 | 0.1 | 12.9 | 6.7 |
| May | 25° / 13° | 88 | 7 | 0 | 13.9 | 7.3 |
| Jun | 28° / 18° | 127 | 8.8 | 0 | 14.4 | 6.3 |
| Jul | 29° / 22° | 200 | 13.3 | 0 | 14.2 | 4.7 |
| Aug | 30° / 22° | 187 | 13.6 | 0 | 13.4 | 4.5 |
| Sep | 26° / 17° | 135 | 8.7 | 0 | 12.2 | 6.8 |
| Oct | 21° / 10° | 55 | 4.6 | 0 | 11.1 | 7.5 |
| Nov | 14° / 3° | 36 | 4.5 | 0.1 | 10.1 | 4.8 |
| Dec | 7° / -2° | 22 | 3.2 | 0.5 | 9.6 | 1.3 |
Cloud cover in September
The sky is clear or mostly clear about 28% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 57%. 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 (%) | 37 | 39 | 38 | 38 | 38 | 38 | 38 | 39 | 39 | 38 | 39 | 41 | 41 | 42 | 42 | 43 | 43 | 44 | 44 | 46 | 46 | 47 | 47 | 47 | 48 | 49 | 49 | 49 | 49 | 52 |
| Cloudier (%) | 63 | 61 | 62 | 62 | 62 | 62 | 62 | 61 | 61 | 62 | 61 | 59 | 59 | 58 | 58 | 57 | 57 | 56 | 56 | 54 | 54 | 53 | 53 | 53 | 52 | 51 | 51 | 51 | 51 | 48 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 37 | 63 |
| 2 | 39 | 61 |
| 3 | 38 | 62 |
| 4 | 38 | 62 |
| 5 | 38 | 62 |
| 6 | 38 | 62 |
| 7 | 38 | 62 |
| 8 | 39 | 61 |
| 9 | 39 | 61 |
| 10 | 38 | 62 |
| 11 | 39 | 61 |
| 12 | 41 | 59 |
| 13 | 41 | 59 |
| 14 | 42 | 58 |
| 15 | 42 | 58 |
| 16 | 43 | 57 |
| 17 | 43 | 57 |
| 18 | 44 | 56 |
| 19 | 44 | 56 |
| 20 | 46 | 54 |
| 21 | 46 | 54 |
| 22 | 47 | 53 |
| 23 | 47 | 53 |
| 24 | 47 | 53 |
| 25 | 48 | 52 |
| 26 | 49 | 51 |
| 27 | 49 | 51 |
| 28 | 49 | 51 |
| 29 | 49 | 51 |
| 30 | 52 | 48 |
Chance of precipitation in September
Gyeongsan-si gets around 135 mm of rain over 8.7 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 29% and peaks near 39% 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 (%) | 39 | 39 | 38 | 37 | 37 | 36 | 36 | 35 | 35 | 34 | 33 | 32 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 24 | 23 | 23 | 23 | 22 | 22 | 21 | 21 | 20 |
| Rain chance (%) | |
|---|---|
| 1 | 39 |
| 2 | 39 |
| 3 | 38 |
| 4 | 37 |
| 5 | 37 |
| 6 | 36 |
| 7 | 36 |
| 8 | 35 |
| 9 | 35 |
| 10 | 34 |
| 11 | 33 |
| 12 | 32 |
| 13 | 32 |
| 14 | 31 |
| 15 | 30 |
| 16 | 29 |
| 17 | 28 |
| 18 | 27 |
| 19 | 26 |
| 20 | 25 |
| 21 | 24 |
| 22 | 24 |
| 23 | 23 |
| 24 | 23 |
| 25 | 23 |
| 26 | 22 |
| 27 | 22 |
| 28 | 21 |
| 29 | 21 |
| 30 | 20 |
Humidity in September
Most of September feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the humid band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 25% 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 (%) | 1 | 2 | 2 | 3 | 4 | 4 | 5 | 6 | 8 | 9 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 | 43 | 45 | 48 | 50 |
| Comfortable (%) | 12 | 13 | 14 | 15 | 16 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 28 | 29 | 30 | 30 | 31 | 31 | 31 | 31 | 30 | 29 | 29 | 28 |
| Humid (%) | 31 | 32 | 34 | 35 | 36 | 37 | 37 | 38 | 38 | 38 | 37 | 36 | 36 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 |
| Muggy (%) | 30 | 29 | 28 | 27 | 26 | 25 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 13 | 12 | 11 | 10 | 9 | 8 | 8 | 7 | 6 | 6 | 5 | 5 | 4 |
| Oppressive (%) | 24 | 22 | 21 | 19 | 18 | 16 | 15 | 14 | 12 | 11 | 10 | 9 | 8 | 8 | 7 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 | 1 |
| Miserable (%) | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 1 | 12 | 31 | 30 | 24 | 2 |
| 2 | 2 | 13 | 32 | 29 | 22 | 2 |
| 3 | 2 | 14 | 34 | 28 | 21 | 1 |
| 4 | 3 | 15 | 35 | 27 | 19 | 1 |
| 5 | 4 | 16 | 36 | 26 | 18 | 1 |
| 6 | 4 | 16 | 37 | 25 | 16 | 1 |
| 7 | 5 | 17 | 37 | 25 | 15 | 1 |
| 8 | 6 | 18 | 38 | 24 | 14 | 0 |
| 9 | 8 | 19 | 38 | 23 | 12 | 0 |
| 10 | 9 | 20 | 38 | 22 | 11 | 0 |
| 11 | 10 | 21 | 37 | 21 | 10 | 0 |
| 12 | 12 | 22 | 36 | 20 | 9 | 0 |
| 13 | 14 | 23 | 36 | 19 | 8 | 0 |
| 14 | 16 | 24 | 34 | 18 | 8 | 0 |
| 15 | 18 | 25 | 33 | 17 | 7 | 0 |
| 16 | 20 | 26 | 32 | 16 | 6 | 0 |
| 17 | 22 | 27 | 31 | 15 | 5 | 0 |
| 18 | 24 | 28 | 30 | 13 | 5 | 0 |
| 19 | 26 | 28 | 29 | 12 | 4 | 0 |
| 20 | 28 | 29 | 28 | 11 | 4 | 0 |
| 21 | 30 | 30 | 27 | 10 | 3 | 0 |
| 22 | 32 | 30 | 25 | 9 | 3 | 0 |
| 23 | 34 | 31 | 24 | 8 | 3 | 0 |
| 24 | 36 | 31 | 23 | 8 | 2 | 0 |
| 25 | 38 | 31 | 22 | 7 | 2 | 0 |
| 26 | 40 | 31 | 21 | 6 | 2 | 0 |
| 27 | 43 | 30 | 20 | 6 | 1 | 0 |
| 28 | 45 | 29 | 19 | 5 | 1 | 0 |
| 29 | 48 | 29 | 18 | 5 | 1 | 0 |
| 30 | 50 | 28 | 17 | 4 | 1 | 0 |
Wind in September
Winds average 8 km/h in September.
Across September, daily wind ranges from about 7 km/h on the calmest days to 8 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) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 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 | 8 | calm |
| 2 | 8 | calm |
| 3 | 8 | calm |
| 4 | 8 | calm |
| 5 | 8 | calm |
| 6 | 8 | calm |
| 7 | 8 | calm |
| 8 | 8 | calm |
| 9 | 8 | calm |
| 10 | 8 | calm |
| 11 | 8 | calm |
| 12 | 8 | calm |
| 13 | 8 | calm |
| 14 | 8 | calm |
| 15 | 8 | calm |
| 16 | 8 | calm |
| 17 | 8 | calm |
| 18 | 8 | calm |
| 19 | 8 | calm |
| 20 | 8 | calm |
| 21 | 8 | calm |
| 22 | 8 | calm |
| 23 | 8 | calm |
| 24 | 8 | calm |
| 25 | 8 | calm |
| 26 | 8 | calm |
| 27 | 8 | calm |
| 28 | 8 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
Sunrise & sunset in September
Daylight runs from about 12 h 48 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 66 minutes over September. Sunrise moves from 6:01 AM to 6:24 AM, and sunset from 6:49 PM to 6:05 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) | 12.8 | 12.8 | 12.7 | 12.7 | 12.6 | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 | 11.8 | 11.8 | 11.8 | 11.7 | 11.7 |
| Sunrise (AM) | 6:01 | 6:02 | 6:02 | 6:03 | 6:04 | 6:05 | 6:06 | 6:06 | 6:07 | 6:08 | 6:09 | 6:10 | 6:10 | 6:11 | 6:12 | 6:13 | 6:13 | 6:14 | 6:15 | 6:16 | 6:17 | 6:17 | 6:18 | 6:19 | 6:20 | 6:21 | 6:21 | 6:22 | 6:23 | 6:24 |
| Sunset (PM) | 6:49 | 6:47 | 6:46 | 6:44 | 6:43 | 6:41 | 6:40 | 6:38 | 6:37 | 6:35 | 6:34 | 6:32 | 6:31 | 6:29 | 6:28 | 6:26 | 6:25 | 6:23 | 6:21 | 6:20 | 6:18 | 6:17 | 6:15 | 6:14 | 6:12 | 6:11 | 6:09 | 6:08 | 6:06 | 6:05 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.8 | 6:01 | 6:49 |
| 2 | 12.8 | 6:02 | 6:47 |
| 3 | 12.7 | 6:02 | 6:46 |
| 4 | 12.7 | 6:03 | 6:44 |
| 5 | 12.6 | 6:04 | 6:43 |
| 6 | 12.6 | 6:05 | 6:41 |
| 7 | 12.6 | 6:06 | 6:40 |
| 8 | 12.5 | 6:06 | 6:38 |
| 9 | 12.5 | 6:07 | 6:37 |
| 10 | 12.5 | 6:08 | 6:35 |
| 11 | 12.4 | 6:09 | 6:34 |
| 12 | 12.4 | 6:10 | 6:32 |
| 13 | 12.3 | 6:10 | 6:31 |
| 14 | 12.3 | 6:11 | 6:29 |
| 15 | 12.3 | 6:12 | 6:28 |
| 16 | 12.2 | 6:13 | 6:26 |
| 17 | 12.2 | 6:13 | 6:25 |
| 18 | 12.1 | 6:14 | 6:23 |
| 19 | 12.1 | 6:15 | 6:21 |
| 20 | 12.1 | 6:16 | 6:20 |
| 21 | 12.0 | 6:17 | 6:18 |
| 22 | 12.0 | 6:17 | 6:17 |
| 23 | 12.0 | 6:18 | 6:15 |
| 24 | 11.9 | 6:19 | 6:14 |
| 25 | 11.9 | 6:20 | 6:12 |
| 26 | 11.8 | 6:21 | 6:11 |
| 27 | 11.8 | 6:21 | 6:09 |
| 28 | 11.8 | 6:22 | 6:08 |
| 29 | 11.7 | 6:23 | 6:06 |
| 30 | 11.7 | 6:24 | 6:05 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 3.94 kWh/m².
For context, solar energy here swings from a low near 2.62 kWh/m² to a high of 5.79 kWh/m² in May across the year — September's 3.94 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 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.1 | Bright |
| 2 | 4.1 | Bright |
| 3 | 4.1 | Bright |
| 4 | 4.0 | Bright |
| 5 | 4.0 | Bright |
| 6 | 4.0 | Bright |
| 7 | 4.0 | Bright |
| 8 | 4.0 | Moderate |
| 9 | 4.0 | Moderate |
| 10 | 4.0 | Moderate |
| 11 | 3.9 | Moderate |
| 12 | 3.9 | Moderate |
| 13 | 3.9 | Moderate |
| 14 | 3.9 | Moderate |
| 15 | 3.9 | Moderate |
| 16 | 3.9 | Moderate |
| 17 | 3.9 | Moderate |
| 18 | 3.9 | Moderate |
| 19 | 3.9 | Moderate |
| 20 | 3.9 | Moderate |
| 21 | 3.9 | Moderate |
| 22 | 3.9 | Moderate |
| 23 | 3.9 | Moderate |
| 24 | 3.9 | Moderate |
| 25 | 3.9 | Moderate |
| 26 | 3.9 | Moderate |
| 27 | 3.9 | Moderate |
| 28 | 3.9 | Moderate |
| 29 | 3.9 | Moderate |
| 30 | 3.9 | Moderate |
Hazard calendar for Gyeongsan-si
In September, Gyeongsan-si sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
Gyeongsan-si sits in the Pacific typhoon belt; the season peaks July–October.
Gyeongsan-si's rainy season runs June–September, when most of the year's rain falls.
Is September a good time to visit Gyeongsan-si?
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 Gyeongsan-si for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Gyeongsan-si in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Gyeongsan-si sees daytime highs around 26°C and nights near 17°C. Worth packing: light clothes and rain gear. About 9 days see rain.
UV index in Gyeongsan-si in September
Clear-sky midday UV in September peaks 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 Gyeongsan-si peaks around August 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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) | 2 | 3 | 5 | 7 | 8 | 8 | 8 | 9 | 8 | 6 | 3 | 2 |
| Level | Moderate | Moderate | Moderate | 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 | Moderate |
| 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 | 3 | Moderate |
| Dec | 2 | Moderate |
Air quality in Gyeongsan-si 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 Gyeongsan-si is worst in March — around 66 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (August, 34 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) | 51 | 57 | 66 | 60 | 55 | 47 | 37 | 34 | 39 | 47 | 56 | 47 |
| Level | Poor | Unhealthy | Unhealthy | Unhealthy | Poor | Poor | Poor | Moderate | Poor | Poor | Unhealthy | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 51 | Poor |
| Feb | 57 | Unhealthy |
| Mar | 66 | Unhealthy |
| Apr | 60 | Unhealthy |
| May | 55 | Poor |
| Jun | 47 | Poor |
| Jul | 37 | Poor |
| Aug | 34 | Moderate |
| Sep | 39 | Poor |
| Oct | 47 | Poor |
| Nov | 56 | Unhealthy |
| Dec | 47 | Poor |
Where is Gyeongsan-si?
Gyeongsan-si sits at 35.8°N, 128.7°E, 59 m above sea level, in South Korea. The nearest listed city is Hayang, 12 km away.
Topography around Gyeongsan-si
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Gyeongsan-si.
Within 3 km, the terrain around Gyeongsan-si has significant variations in elevation — a maximum elevation change of 421 m around an average of 96 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 889 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,396 m.
The land around Gyeongsan-si is covered by artificial surfaces (45%) and trees (33%) within 3 km, trees (61%) within 16 km, and trees (71%) 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 Gyeongsan-si (35.8233°, 128.7378°, elevation 59 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).