Gwangju vs Jeju City: which is sunnier?
🇰🇷 South Korea vs 🇰🇷 South Korea · 181 km apart · long-term climate normals (NASA POWER, 2001–2020)
Gwangju is the sunnier overall: about 1,884 hours of sunshine a year to Jeju City's 1,734. Jeju City has the higher Sunshine Score in 4 of 12 months, Gwangju in 3 (5 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.

At a glance
| Gwangju | Jeju City | |
|---|---|---|
| Sunshine hours / year | 1,884 | 1,734 |
| Sunniest month | October (78/100) | October (72/100) |
| Nov–Feb average score | 10/100 | 23/100 |
| Jun–Aug average score | 62/100 | 61/100 |
| Rain / year | 1,381 mm | 1,579 mm |
| Peak midday UV | 7 (high) | 7 (high) |
Gwangju vs Jeju City month by month
| Month | Sunshine Score | Day high °C | Rain mm | |||
|---|---|---|---|---|---|---|
| Gwangju | Jeju City | Gwangju | Jeju City | Gwangju | Jeju City | |
| January | 0 | 7 | 4° | 9° | 30 | 50 |
| February | 0 | 13 | 7° | 10° | 47 | 66 |
| March | 26 | 24 | 12° | 12° | 66 | 90 |
| April | 58 | 37 | 18° | 15° | 109 | 137 |
| May | 69 | 52 | 23° | 18° | 113 | 141 |
| June | 62 | 61 | 27° | 22° | 160 | 192 |
| July | 62 | 61 | 29° | 26° | 290 | 240 |
| August | 62 | 61 | 30° | 28° | 265 | 261 |
| September | 62 | 61 | 26° | 25° | 151 | 185 |
| October | 78 | 72 | 20° | 21° | 66 | 89 |
| November | 40 | 50 | 14° | 16° | 48 | 72 |
| December | 0 | 20 | 6° | 11° | 36 | 56 |
The sunnier month by month: Jan Jeju City · Feb Jeju City · Mar even · Apr Gwangju · May Gwangju · Jun even · Jul even · Aug even · Sep even · Oct Gwangju · Nov Jeju City · Dec Jeju City.
When to pick which
- November–February: Jeju City (average score 23/100 vs 10). Jeju City is the warmer, around 12°C daytime highs vs 8°C. See the winter sun ranking.
- March–May: Gwangju (average score 51/100 vs 38). Gwangju is the warmer, around 18°C daytime highs vs 15°C.
- June–August: too close to call — Gwangju averages 62/100, Jeju City 61/100. Gwangju is the warmer, around 29°C daytime highs vs 25°C.
- September–October: Gwangju (average score 70/100 vs 67). Daytime highs are similar (23°C vs 23°C).
Full month-by-month guides: Gwangju weather by month · Jeju City weather by month · Best time to visit South Korea.
More comparisons: Gwangju vs Yeosu · Gwangju vs Gunsan · Jeju City vs Yeosu · Jeju City vs Gunsan · all head-to-heads