Seoul vs Gunsan: which is sunnier?
🇰🇷 South Korea vs 🇰🇷 South Korea · 175 km apart · long-term climate normals (NASA POWER, 2001–2020)
Seoul is the sunnier overall: about 2,037 hours of sunshine a year to Gunsan's 1,884. Gunsan 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 | Gunsan | |
|---|---|---|
| Sunshine hours / year | 2,037 | 1,884 |
| Sunniest month | June (72/100) | October (79/100) |
| Nov–Feb average score | 5/100 | 9/100 |
| Jun–Aug average score | 66/100 | 63/100 |
| Rain / year | 1,174 mm | 1,267 mm |
| Warmest sea | 30°C / 86°F | 32°C / 90°F |
| Peak midday UV | 6 (high) | 7 (high) |
Seoul vs Gunsan month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Seoul | Gunsan | Seoul | Gunsan | Seoul | Gunsan | Seoul | Gunsan | |
| January | 0 | 0 | 1° | 3° | 22 | 27 | 2° | 5° |
| February | 0 | 0 | 3° | 6° | 32 | 39 | 2° | 6° |
| March | 0 | 20 | 6° | 11° | 36 | 50 | 5° | 7° |
| April | 26 | 56 | 12° | 17° | 69 | 85 | 12° | 14° |
| May | 56 | 74 | 17° | 23° | 86 | 85 | 17° | 19° |
| June | 72 | 65 | 21° | 27° | 103 | 136 | 23° | 24° |
| July | 63 | 62 | 25° | 29° | 323 | 317 | 26° | 27° |
| August | 63 | 62 | 26° | 30° | 246 | 261 | 30° | 32° |
| September | 67 | 65 | 24° | 25° | 129 | 134 | 28° | 29° |
| October | 68 | 79 | 18° | 20° | 51 | 56 | 20° | 22° |
| November | 20 | 34 | 11° | 13° | 51 | 45 | 15° | 17° |
| December | 0 | 0 | 4° | 5° | 26 | 32 | 6° | 10° |
The sunnier month by month: Jan even · Feb even · Mar Gunsan · Apr Gunsan · May Gunsan · Jun Seoul · Jul even · Aug even · Sep even · Oct Gunsan · Nov Gunsan · Dec even.
When to pick which
- November–February: Gunsan (average score 9/100 vs 5). Gunsan is the warmer, around 7°C daytime highs vs 5°C. See the winter sun ranking.
- March–May: Gunsan (average score 50/100 vs 27). Gunsan is the warmer, around 17°C daytime highs vs 12°C.
- June–August: Seoul (average score 66/100 vs 63). Gunsan is the warmer, around 29°C daytime highs vs 24°C.
- September–October: Gunsan (average score 72/100 vs 68). Gunsan is the warmer, around 23°C daytime highs vs 21°C.
Sea temperature
Gunsan's sea gets warmer: 32°C / 90°F at its peak vs 30°C. Swimmable water (21°C+): Seoul about 4 months a year, Gunsan about 5 months a year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Seoul weather by month · Gunsan weather by month · Best time to visit South Korea.
More comparisons: Seoul vs Cheongju · Seoul vs Yangyang · Gunsan vs Cheongju · Gunsan vs Gwangju · Gunsan vs Jeju City · all head-to-heads