Cheonan, Chungcheongnam-do Climate
South Korea
Pop. 658,831 Elev. 40 m / 131 ft
TZ: Asia/Seoul (UTC+9) ·
Summers in Cheonan are warm, with July highs around 90°F (32°C), while winters are frigid with February lows of 21°F (-6°C). Humidity pushes the summer feels-like temperature to 110°F (43°C), while wind chill can drive winter lows to 14°F (-10°C). Expect around 53 rainy days annually (51.8 in / 1316 mm total), with snow on 1 days and 15 in (383 mm) of annual accumulation. The city averages 116 sunny days per year and around 28 thunderstorm days. Ocean water temperatures reach 82°F (28°C) in summer.
| Temperature | 32°C (90°F) high | -6°C (21°F) low |
| Feels like | 43°C (110°F) high | -10°C (14°F) low |
| Rain | 53 days | 1316 mm (51.8 in) /yr |
| Snow | 1 days | 383 mm (15.1 in) /yr |
| Sky | 116 sunny | 28 stormy |
| Wind | 1.3 m/s (2.8 mph) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, May
Sky & Air by Month
Cloud cover (%)
47
Jan 38
Feb 52
Mar 47
Apr 60
May 69
Jun 62
Jul 67
Aug 75
Sep 74
Oct 36
Nov 47
Dec Humidity (%)
65
Jan 57
Feb 56
Mar 54
Apr 62
May 65
Jun 71
Jul 79
Aug 80
Sep 78
Oct 64
Nov 64
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 32 km Cheongju International Airport/Cheongju Air Base (K-59/G-513) (CJJ)
Ski resort 31 km
National park 51 km 계룡산국립공원
Mountain peak
(1,522 m) 117 km 설천봉
Hospital 2 km 로고스요양병원
Hiking trail 35 km 금북정맥
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 4°C 39°F | -5°C 23°F | 7 mm 0.3 in | 101 mm4.0 in | 13 |
| February | 4°C 39°F | -6°C 21°F | 3 mm 0.1 in | 69 mm2.7 in | 13 |
| March | 14°C 56°F | 2°C 36°F | 40 mm 1.6 in | 132 mm5.2 in | 12 |
| April | 20°C 68°F | 8°C 46°F | 68 mm 2.7 in | 34 mm1.4 in | 12 |
| May | 23°C 74°F | 13°C 55°F | 85 mm 3.3 in | — | 9 |
| June | 29°C 84°F | 20°C 68°F | 182 mm 7.2 in | — | 4 |
| July | 32°C 90°F | 24°C 75°F | 234 mm 9.2 in | — | 10 |
| August | 32°C 89°F | 24°C 75°F | 158 mm 6.2 in | — | 5 |
| September | 27°C 81°F | 20°C 67°F | 288 mm 11.3 in | — | 1 |
| October | 21°C 69°F | 13°C 56°F | 204 mm 8.0 in | — | 3 |
| November | 14°C 58°F | 3°C 37°F | 13 mm 0.5 in | 1 mm0.0 in | 20 |
| December | 6°C 43°F | -3°C 26°F | 34 mm 1.3 in | 45 mm1.8 in | 14 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 13 | 0 |
| February | 13 | 0 |
| March | 12 | 0 |
| April | 12 | 0 |
| May | 9 | 4 |
| June | 4 | 4 |
| July | 10 | 5 |
| August | 5 | 3 |
| September | 1 | 7 |
| October | 3 | 5 |
| November | 20 | 0 |
| December | 14 | 0 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 6°C 42°F | 0°C 32°F |
| February | 3°C 38°F | 0°C 32°F |
| March | 7°C 45°F | 3°C 37°F |
| April | 13°C 55°F | 10°C 51°F |
| May | 17°C 63°F | 15°C 60°F |
| June | 23°C 74°F | 21°C 71°F |
| July | 27°C 81°F | 28°C 82°F |
| August | 28°C 82°F | 28°C 82°F |
| September | 28°C 82°F | 24°C 75°F |
| October | 23°C 74°F | 17°C 63°F |
| November | 17°C 63°F | 8°C 47°F |
| December | 11°C 52°F | 2°C 35°F |