Cheongju weather by month & the best time to visit
South Korea · major city break · humid subtropical climate

The best time to visit Cheongju is May — its sunniest month (Sunshine Score 75/100), with October and June close behind. Cheongju averages about 1,963 hours of sunshine a year. Daytime highs around 24°C / 75°F and roughly 80 mm of rain in May.
When is the best time to visit Cheongju?
For sunshine, the best time to visit Cheongju is May, then October and June. The dullest month is January (0/100, 24 mm of rain). The full month-by-month picture is in the table below.
How sunny is Cheongju?
Cheongju gets a moderate 1,963 hours of sunshine a year. 75 Sunshine Score points separate May (75) from January (0), so the month you pick matters. It ranks #7 of 14 destinations in South Korea for annual sunshine, above the national median of 1,959 hours. Rain has a clear season: the wettest stretch, around July, carries about 58% of the annual 1,225 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | 2° / 36°F | -7° / 19°F | 24 mm | 2 |
| February | 0 | 5° / 41°F | -5° / 23°F | 34 mm | 2 |
| March | 20 | 11° / 52°F | -1° / 30°F | 46 mm | 3 |
| April | 63 | 18° / 64°F | 5° / 41°F | 81 mm | 5 |
| May | 75 | 24° / 75°F | 11° / 52°F | 80 mm | 6 |
| June | 66 | 29° / 84°F | 17° / 63°F | 134 mm | 5 |
| July | 63 | 29° / 84°F | 21° / 70°F | 316 mm | 5 |
| August | 63 | 30° / 86°F | 22° / 72°F | 255 mm | 6 |
| September | 66 | 25° / 77°F | 16° / 61°F | 134 mm | 5 |
| October | 74 | 19° / 66°F | 8° / 46°F | 54 mm | 4 |
| November | 28 | 12° / 54°F | 1° / 34°F | 41 mm | 2 |
| December | 0 | 4° / 39°F | -5° / 23°F | 26 mm | 1 |
Nearest destinations
Head-to-head
How Cheongju compares month by month: Cheongju vs Seoul · Cheongju vs Daegu · Cheongju vs Gunsan · Cheongju vs Yangyang · all comparisons
Cheongju: questions and answers
What kind of destination is Cheongju?
Cheongju is a major city break in South Korea with a humid subtropical climate.
How many hours of sunshine does Cheongju get a year?
Cheongju gets about 1,963 hours of sunshine a year, at its best around May.
When is the best time to visit Cheongju?
The sunniest time to visit Cheongju is May, when the Sunshine Score peaks at 75/100 (with October and June close behind). Expect daytime highs around 24°C / 75°F.
What is the least sunny month in Cheongju?
January is the least sunny month in Cheongju, scoring 0/100 with about 24 mm of rain.
How strong is the sun in Cheongju?
The typical midday UV index in Cheongju peaks around 6 (high) in May, easing to about 1 (low) in December. Month-by-month midday UV values are in the UV column of the table on this page.
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