Osan weather in November
In November, Osan sees average daytime highs of 12°C and overnight lows near 3°C, with 47 mm of precipitation across 7.3 wet days and about 10 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.
Highs ease over the month, from about 16°C in the first days to 8°C by the end. The sky is clear or mostly clear about 46% of the time in November, and the air most often feels dry.
Daylight stretches from about 10 h 24 min at the start of November to 9 h 42 min by month's end. Set against the rest of the year, November is Osan's 2nd-clearest and 7th-windiest month. For the whole year in context, see Osan's year-round climate.
- Daytime high
- 12°
- 8th warmest
- Overnight low
- 3°
- 5th coldest
- Precipitation
- 47 mm
- 7.3 wet days
- Daylight
- 10 hours
- 7:18 AM – 5:16 PM
- Cloud cover
- 46%
- 2nd clearest
- Wind
- 10 km/h
- 7th windiest
- Solar energy
- 2.59 kWh/m²
- Travel score
- 3.5
- out of 10
Osan is city of Gyeonggi-do, South Korea.
- Density
- 5,584/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in November
Highs ease over the month, from about 16°C in the first days to 8°C by the end.
A typical November day in Osan reaches about 12°C in the afternoon and slips back to 3°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 17°C. Set against its neighbours, November runs about 8°C cooler than October and about 7°C warmer than December.
| 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) | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 |
| Avg low (°C) | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | -1 | -1 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 16 | 6 |
| 2 | 16 | 6 |
| 3 | 16 | 6 |
| 4 | 15 | 6 |
| 5 | 15 | 5 |
| 6 | 15 | 5 |
| 7 | 15 | 5 |
| 8 | 14 | 5 |
| 9 | 14 | 5 |
| 10 | 14 | 4 |
| 11 | 13 | 4 |
| 12 | 13 | 4 |
| 13 | 13 | 4 |
| 14 | 12 | 3 |
| 15 | 12 | 3 |
| 16 | 12 | 3 |
| 17 | 11 | 2 |
| 18 | 11 | 2 |
| 19 | 11 | 2 |
| 20 | 11 | 2 |
| 21 | 10 | 1 |
| 22 | 10 | 1 |
| 23 | 10 | 1 |
| 24 | 9 | 1 |
| 25 | 9 | 0 |
| 26 | 9 | 0 |
| 27 | 9 | 0 |
| 28 | 8 | 0 |
| 29 | 8 | -1 |
| 30 | 8 | -1 |
How November really feels in Osan
Once humidity and wind are folded in, November averages 0 days that feel above 32°C and 15 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in November is cold — wind chill drags the overnight "feels like" below the raw low.
Osan weather by month
How November compares with the rest of the year at a glance. November is the 8th-warmest and 8th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 2° / -6° | 21 | 3.8 | 2.3 | 9.7 | 0.0 |
| Feb | 5° / -4° | 27 | 4.1 | 1.7 | 10.6 | 0.3 |
| Mar | 11° / 1° | 39 | 6.1 | 1 | 11.7 | 2.9 |
| Apr | 17° / 6° | 69 | 7.1 | 0 | 12.9 | 5.9 |
| May | 23° / 12° | 88 | 7.1 | 0 | 14 | 7.3 |
| Jun | 26° / 18° | 118 | 7.6 | 0 | 14.5 | 6.8 |
| Jul | 28° / 22° | 279 | 15.3 | 0 | 14.3 | 5.1 |
| Aug | 29° / 22° | 231 | 14 | 0 | 13.4 | 5.0 |
| Sep | 26° / 17° | 124 | 7.8 | 0 | 12.3 | 7.0 |
| Oct | 20° / 10° | 55 | 5.2 | 0 | 11 | 7.2 |
| Nov | 12° / 3° | 47 | 7.3 | 0.3 | 10 | 3.5 |
| Dec | 5° / -4° | 23 | 5.1 | 1.6 | 9.5 | 0.2 |
Cloud cover in November
The sky is clear or mostly clear about 46% of the time in November.
Beyond those clear spells, partly cloudy skies cover about 16% of November, with mostly cloudy or overcast conditions the remaining 39%. Skies tend to cloud over 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 (%) | 69 | 68 | 67 | 66 | 66 | 65 | 64 | 64 | 62 | 61 | 61 | 60 | 60 | 60 | 59 | 59 | 59 | 59 | 59 | 59 | 60 | 60 | 60 | 60 | 60 | 59 | 59 | 59 | 59 | 59 |
| Cloudier (%) | 31 | 32 | 33 | 34 | 34 | 35 | 36 | 36 | 38 | 39 | 39 | 40 | 40 | 40 | 41 | 41 | 41 | 41 | 41 | 41 | 40 | 40 | 40 | 40 | 40 | 41 | 41 | 41 | 41 | 41 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 69 | 31 |
| 2 | 68 | 32 |
| 3 | 67 | 33 |
| 4 | 66 | 34 |
| 5 | 66 | 34 |
| 6 | 65 | 35 |
| 7 | 64 | 36 |
| 8 | 64 | 36 |
| 9 | 62 | 38 |
| 10 | 61 | 39 |
| 11 | 61 | 39 |
| 12 | 60 | 40 |
| 13 | 60 | 40 |
| 14 | 60 | 40 |
| 15 | 59 | 41 |
| 16 | 59 | 41 |
| 17 | 59 | 41 |
| 18 | 59 | 41 |
| 19 | 59 | 41 |
| 20 | 59 | 41 |
| 21 | 60 | 40 |
| 22 | 60 | 40 |
| 23 | 60 | 40 |
| 24 | 60 | 40 |
| 25 | 60 | 40 |
| 26 | 59 | 41 |
| 27 | 59 | 41 |
| 28 | 59 | 41 |
| 29 | 59 | 41 |
| 30 | 59 | 41 |
Chance of precipitation in November
Osan gets around 47 mm of rain and snow over 7.3 wet days in November. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 24% and peaks near 25% on the wettest days, and about 0 day brings snow.
| 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 (%) | 21 | 22 | 22 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 |
| Snow chance (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 21 | 0 |
| 2 | 22 | 0 |
| 3 | 22 | 0 |
| 4 | 23 | 0 |
| 5 | 23 | 0 |
| 6 | 24 | 0 |
| 7 | 24 | 0 |
| 8 | 24 | 0 |
| 9 | 24 | 0 |
| 10 | 24 | 0 |
| 11 | 25 | 0 |
| 12 | 25 | 0 |
| 13 | 25 | 0 |
| 14 | 25 | 1 |
| 15 | 25 | 1 |
| 16 | 25 | 1 |
| 17 | 24 | 1 |
| 18 | 24 | 1 |
| 19 | 24 | 1 |
| 20 | 24 | 2 |
| 21 | 24 | 2 |
| 22 | 24 | 2 |
| 23 | 24 | 2 |
| 24 | 24 | 2 |
| 25 | 24 | 2 |
| 26 | 23 | 3 |
| 27 | 23 | 3 |
| 28 | 23 | 3 |
| 29 | 23 | 3 |
| 30 | 23 | 3 |
Humidity in November
Most of November feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, November lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 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 (%) | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Comfortable (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 98 | 2 |
| 2 | 98 | 2 |
| 3 | 98 | 2 |
| 4 | 98 | 2 |
| 5 | 98 | 2 |
| 6 | 98 | 2 |
| 7 | 98 | 2 |
| 8 | 98 | 2 |
| 9 | 98 | 2 |
| 10 | 98 | 2 |
| 11 | 98 | 2 |
| 12 | 98 | 2 |
| 13 | 98 | 2 |
| 14 | 98 | 2 |
| 15 | 99 | 1 |
| 16 | 99 | 1 |
| 17 | 99 | 1 |
| 18 | 99 | 1 |
| 19 | 99 | 1 |
| 20 | 99 | 1 |
| 21 | 99 | 1 |
| 22 | 100 | 0 |
| 23 | 100 | 0 |
| 24 | 100 | 0 |
| 25 | 100 | 0 |
| 26 | 100 | 0 |
| 27 | 100 | 0 |
| 28 | 100 | 0 |
| 29 | 100 | 0 |
| 30 | 100 | 0 |
Wind in November
Winds average 10 km/h in November.
Across November, daily wind ranges from about 10 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| 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 | 10 | calm |
| 2 | 10 | calm |
| 3 | 10 | calm |
| 4 | 10 | calm |
| 5 | 10 | calm |
| 6 | 10 | calm |
| 7 | 10 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 10 | calm |
| 11 | 10 | calm |
| 12 | 10 | calm |
| 13 | 10 | calm |
| 14 | 10 | calm |
| 15 | 10 | calm |
| 16 | 10 | calm |
| 17 | 10 | calm |
| 18 | 10 | calm |
| 19 | 10 | calm |
| 20 | 10 | calm |
| 21 | 10 | calm |
| 22 | 10 | calm |
| 23 | 10 | calm |
| 24 | 10 | calm |
| 25 | 10 | calm |
| 26 | 10 | calm |
| 27 | 10 | calm |
| 28 | 10 | calm |
| 29 | 10 | calm |
| 30 | 10 | calm |
Sunrise & sunset in November
Daylight runs from about 10 h 24 min at the start of November to 9 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 42 minutes over November. Sunrise moves from 7:02 AM to 7:32 AM, and sunset from 5:29 PM to 5:11 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) | 10.4 | 10.4 | 10.4 | 10.3 | 10.3 | 10.3 | 10.2 | 10.2 | 10.2 | 10.1 | 10.1 | 10.1 | 10.1 | 10.0 | 10.0 | 10.0 | 9.9 | 9.9 | 9.9 | 9.9 | 9.8 | 9.8 | 9.8 | 9.8 | 9.8 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 |
| Sunrise (AM) | 7:02 | 7:03 | 7:04 | 7:05 | 7:06 | 7:07 | 7:08 | 7:09 | 7:10 | 7:11 | 7:13 | 7:14 | 7:15 | 7:16 | 7:17 | 7:18 | 7:19 | 7:20 | 7:21 | 7:22 | 7:23 | 7:24 | 7:25 | 7:26 | 7:27 | 7:28 | 7:29 | 7:30 | 7:31 | 7:32 |
| Sunset (PM) | 5:29 | 5:27 | 5:27 | 5:26 | 5:25 | 5:24 | 5:23 | 5:22 | 5:21 | 5:20 | 5:20 | 5:19 | 5:18 | 5:17 | 5:17 | 5:16 | 5:16 | 5:15 | 5:14 | 5:14 | 5:14 | 5:13 | 5:13 | 5:12 | 5:12 | 5:12 | 5:11 | 5:11 | 5:11 | 5:11 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.4 | 7:02 | 5:29 |
| 2 | 10.4 | 7:03 | 5:27 |
| 3 | 10.4 | 7:04 | 5:27 |
| 4 | 10.3 | 7:05 | 5:26 |
| 5 | 10.3 | 7:06 | 5:25 |
| 6 | 10.3 | 7:07 | 5:24 |
| 7 | 10.2 | 7:08 | 5:23 |
| 8 | 10.2 | 7:09 | 5:22 |
| 9 | 10.2 | 7:10 | 5:21 |
| 10 | 10.1 | 7:11 | 5:20 |
| 11 | 10.1 | 7:13 | 5:20 |
| 12 | 10.1 | 7:14 | 5:19 |
| 13 | 10.1 | 7:15 | 5:18 |
| 14 | 10.0 | 7:16 | 5:17 |
| 15 | 10.0 | 7:17 | 5:17 |
| 16 | 10.0 | 7:18 | 5:16 |
| 17 | 9.9 | 7:19 | 5:16 |
| 18 | 9.9 | 7:20 | 5:15 |
| 19 | 9.9 | 7:21 | 5:14 |
| 20 | 9.9 | 7:22 | 5:14 |
| 21 | 9.8 | 7:23 | 5:14 |
| 22 | 9.8 | 7:24 | 5:13 |
| 23 | 9.8 | 7:25 | 5:13 |
| 24 | 9.8 | 7:26 | 5:12 |
| 25 | 9.8 | 7:27 | 5:12 |
| 26 | 9.7 | 7:28 | 5:12 |
| 27 | 9.7 | 7:29 | 5:11 |
| 28 | 9.7 | 7:30 | 5:11 |
| 29 | 9.7 | 7:31 | 5:11 |
| 30 | 9.7 | 7:32 | 5:11 |
Solar energy in November
Average shortwave solar energy reaching the ground each day in November, about 2.59 kWh/m².
For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 5.85 kWh/m² in May across the year — November's 2.59 kWh/m² sits near the bottom.
| 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) | 3.1 | 3.1 | 3.0 | 3.0 | 2.9 | 2.9 | 2.9 | 2.8 | 2.8 | 2.7 | 2.7 | 2.7 | 2.6 | 2.6 | 2.6 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.3 | 2.3 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | 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 | 3.1 | Moderate |
| 2 | 3.1 | Moderate |
| 3 | 3.0 | Moderate |
| 4 | 3.0 | Moderate |
| 5 | 2.9 | Moderate |
| 6 | 2.9 | Moderate |
| 7 | 2.9 | Moderate |
| 8 | 2.8 | Moderate |
| 9 | 2.8 | Moderate |
| 10 | 2.7 | Moderate |
| 11 | 2.7 | Moderate |
| 12 | 2.7 | Moderate |
| 13 | 2.6 | Moderate |
| 14 | 2.6 | Moderate |
| 15 | 2.6 | Moderate |
| 16 | 2.5 | Moderate |
| 17 | 2.5 | Moderate |
| 18 | 2.5 | Moderate |
| 19 | 2.5 | Moderate |
| 20 | 2.5 | Moderate |
| 21 | 2.5 | Moderate |
| 22 | 2.4 | Moderate |
| 23 | 2.4 | Moderate |
| 24 | 2.4 | Moderate |
| 25 | 2.4 | Moderate |
| 26 | 2.4 | Moderate |
| 27 | 2.4 | Moderate |
| 28 | 2.4 | Moderate |
| 29 | 2.3 | Moderate |
| 30 | 2.3 | Moderate |
Hazard calendar for Osan
In November, Osan sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Osan sits in the Pacific typhoon belt; the season peaks July–October.
Osan's rainy season runs July–August, when most of the year's rain falls.
Is November a good time to visit Osan?
Our two travel scores rate November for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
November is a weaker month for outdoor sightseeing in Osan.
What to pack for Osan in November
From November's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In November, Osan sees daytime highs around 12°C and nights near 3°C. Pack a warm layer. About 7 days see rain.
Sea temperature near Osan in November
The nearest coast averages about 15°C in November — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 40 km away) is warmest in August at about 23°C and coldest in February near 4°C.
It's comfortable for a long swim from Jul 12 to Oct 14 — about 3.1 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 6 | 4 | 5 | 8 | 12 | 16 | 21 | 23 | 23 | 20 | 15 | 10 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 6 | Bracing |
| Feb | 4 | Bracing |
| Mar | 5 | Bracing |
| Apr | 8 | Bracing |
| May | 12 | Bracing |
| Jun | 16 | Cool |
| Jul | 21 | Refreshing |
| Aug | 23 | Refreshing |
| Sep | 23 | Refreshing |
| Oct | 20 | Cool |
| Nov | 15 | Cool |
| Dec | 10 | Bracing |
UV index in Osan in November
Clear-sky midday UV in November peaks around 3. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Osan peaks around August 11 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 | 6 | 6 | 7 | 8 | 8 | 7 | 5 | 3 | 2 |
| Level | Low | Moderate | Moderate | High | High | 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 | High |
| Jul | 8 | Very high |
| Aug | 8 | Very high |
| Sep | 7 | Very high |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Osan in November
Average fine-particle pollution (PM2.5) through the year — so you can see where November falls, not just the annual average.
Air quality in Osan is worst in March — around 160 µg/m³ PM2.5 (very unhealthy), about 2.0× the cleanest month (August, 81 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) | 145 | 149 | 160 | 127 | 111 | 98 | 88 | 81 | 110 | 132 | 142 | 133 |
| Level | Unhealthy | Unhealthy | Very unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 145 | Unhealthy |
| Feb | 149 | Unhealthy |
| Mar | 160 | Very unhealthy |
| Apr | 127 | Unhealthy |
| May | 111 | Unhealthy |
| Jun | 98 | Unhealthy |
| Jul | 88 | Unhealthy |
| Aug | 81 | Unhealthy |
| Sep | 110 | Unhealthy |
| Oct | 132 | Unhealthy |
| Nov | 142 | Unhealthy |
| Dec | 133 | Unhealthy |
Where is Osan?
Osan sits at 37.2°N, 127.1°E, 22 m above sea level, in South Korea. The nearest listed city is Suwon, 16 km away.
Topography around Osan
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Osan.
Within 3 km, the terrain around Osan has only modest variations in elevation — a maximum elevation change of 138 m around an average of 39 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 496 m; within 80 km, large variations in elevation — a maximum elevation change of 1,126 m.
The land around Osan is covered by artificial surfaces (48%) and trees (25%) within 3 km, trees (39%) and artificial surfaces (32%) within 16 km, and trees (49%) 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 Osan (37.1522°, 127.0706°, elevation 22 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).