Yeosu vs Gunsan: which is sunnier?
🇰🇷 South Korea vs 🇰🇷 South Korea · 149 km apart · long-term climate normals (NASA POWER, 2001–2020)
Yeosu is the sunnier overall: about 2,024 hours of sunshine a year to Gunsan's 1,884. Yeosu has the higher Sunshine Score in 2 of 12 months, Gunsan in 1 (9 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Yeosu | Gunsan | |
|---|---|---|
| Sunshine hours / year | 2,024 | 1,884 |
| Sunniest month | October (78/100) | October (79/100) |
| Nov–Feb average score | 10/100 | 9/100 |
| Jun–Aug average score | 63/100 | 63/100 |
| Rain / year | 1,407 mm | 1,267 mm |
| Warmest sea | 31°C / 88°F | 32°C / 90°F |
| Peak midday UV | 7 (high) | 7 (high) |
Yeosu vs Gunsan month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Yeosu | Gunsan | Yeosu | Gunsan | Yeosu | Gunsan | Yeosu | Gunsan | |
| January | 0 | 0 | 4° | 3° | 29 | 27 | 5° | 5° |
| February | 0 | 0 | 7° | 6° | 48 | 39 | 7° | 6° |
| March | 26 | 20 | 12° | 11° | 69 | 50 | 10° | 7° |
| April | 58 | 56 | 18° | 17° | 114 | 85 | 16° | 14° |
| May | 69 | 74 | 24° | 23° | 119 | 85 | 21° | 19° |
| June | 63 | 65 | 27° | 27° | 164 | 136 | 25° | 24° |
| July | 63 | 62 | 29° | 29° | 295 | 317 | 28° | 27° |
| August | 63 | 62 | 30° | 30° | 264 | 261 | 31° | 32° |
| September | 63 | 65 | 26° | 25° | 157 | 134 | 30° | 29° |
| October | 78 | 79 | 21° | 20° | 67 | 56 | 22° | 22° |
| November | 41 | 34 | 14° | 13° | 47 | 45 | 16° | 17° |
| December | 0 | 0 | 7° | 5° | 34 | 32 | 9° | 10° |
The sunnier month by month: Jan even · Feb even · Mar Yeosu · Apr even · May Gunsan · Jun even · Jul even · Aug even · Sep even · Oct even · Nov Yeosu · Dec even.
When to pick which
- November–February: too close to call — Yeosu averages 10/100, Gunsan 9/100. Daytime highs are similar (8°C vs 7°C). See the winter sun ranking.
- March–May: too close to call — Yeosu averages 51/100, Gunsan 50/100. Daytime highs are similar (18°C vs 17°C).
- June–August: too close to call — Yeosu averages 63/100, Gunsan 63/100. Daytime highs are similar (29°C vs 29°C).
- September–October: too close to call — Yeosu averages 71/100, Gunsan 72/100. Daytime highs are similar (24°C vs 23°C).
Sea temperature
Gunsan's sea gets warmer: 32°C / 90°F at its peak vs 31°C. Swimmable water (21°C+): Yeosu about 6 months a year, Gunsan about 5 months a year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Yeosu weather by month · Gunsan weather by month · Best time to visit South Korea.
More comparisons: Yeosu vs Busan · Yeosu vs Gwangju · Yeosu vs Ulsan · Gunsan vs Seoul · Gunsan vs Cheongju · Gunsan vs Gwangju · all head-to-heads