Seoul vs Cheongju: which is sunnier?
🇰🇷 South Korea vs 🇰🇷 South Korea · 125 km apart · long-term climate normals (NASA POWER, 2001–2020)
Seoul and Cheongju are virtually tied for annual sunshine — about 2,037 vs 1,963 hours a year. Cheongju has the higher Sunshine Score in 5 of 12 months, Seoul in 1 (6 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Seoul | Cheongju | |
|---|---|---|
| Sunshine hours / year | 2,037 | 1,963 |
| Sunniest month | June (72/100) | May (75/100) |
| Nov–Feb average score | 5/100 | 7/100 |
| Jun–Aug average score | 66/100 | 64/100 |
| Rain / year | 1,174 mm | 1,225 mm |
| Peak midday UV | 6 (high) | 6 (high) |
Seoul vs Cheongju month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Seoul | Cheongju | Seoul | Cheongju | Seoul | Cheongju | |
| January | 0 | 0 | 1° | 2° | 22 | 24 |
| February | 0 | 0 | 3° | 5° | 32 | 34 |
| March | 0 | 20 | 6° | 11° | 36 | 46 |
| April | 26 | 63 | 12° | 18° | 69 | 81 |
| May | 56 | 75 | 17° | 24° | 86 | 80 |
| June | 72 | 66 | 21° | 29° | 103 | 134 |
| July | 63 | 63 | 25° | 29° | 323 | 316 |
| August | 63 | 63 | 26° | 30° | 246 | 255 |
| September | 67 | 66 | 24° | 25° | 129 | 134 |
| October | 68 | 74 | 18° | 19° | 51 | 54 |
| November | 20 | 28 | 11° | 12° | 51 | 41 |
| December | 0 | 0 | 4° | 4° | 26 | 26 |
The sunnier month by month: Jan even · Feb even · Mar Cheongju · Apr Cheongju · May Cheongju · Jun Seoul · Jul even · Aug even · Sep even · Oct Cheongju · Nov Cheongju · Dec even.
When to pick which
- November–February: too close to call — Seoul averages 5/100, Cheongju 7/100. Daytime highs are similar (5°C vs 6°C). See the winter sun ranking.
- March–May: Cheongju (average score 53/100 vs 27). Cheongju is the warmer, around 18°C daytime highs vs 12°C.
- June–August: too close to call — Seoul averages 66/100, Cheongju 64/100. Cheongju is the warmer, around 29°C daytime highs vs 24°C.
- September–October: too close to call — Seoul averages 68/100, Cheongju 70/100. Daytime highs are similar (21°C vs 22°C).
Full month-by-month guides: Seoul weather by month · Cheongju weather by month · Best time to visit South Korea.
More comparisons: Seoul vs Gunsan · Seoul vs Yangyang · Cheongju vs Daegu · Cheongju vs Gunsan · Cheongju vs Yangyang · all head-to-heads