Yeosu weather by month & the best time to visit
South Korea · beach resort · humid subtropical climate
The best time to visit Yeosu is October — its sunniest month (Sunshine Score 78/100), with May close behind. Yeosu averages about 2,024 hours of sunshine a year. Daytime highs around 21°C / 70°F and roughly 67 mm of rain in October.
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- Sun hours / year
- 2,024
- Sunniest month
- October
- Peak score
- 78/100
- Rain / year
- 1,407 mm
- Snow / year
- ≈14 cm
- Midday UV at peak
- 7 (high)
- Sea at warmest
- 31°C / 88°F
- Population
- 342k
- Elevation
- 14 m
When is the best time to visit Yeosu?
For sunshine, the best time to visit Yeosu is October, then May. The dullest month is January (0/100, 29 mm of rain). The full month-by-month picture is in the table below.
How sunny is Yeosu?
Yeosu gets a moderate 2,024 hours of sunshine a year. 78 Sunshine Score points separate October (78) from January (0), so the month you pick matters. It ranks #5 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 51% of the annual 1,407 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | 4° / 39°F | -5° / 23°F | 29 mm | 2 | 5° / 41°F |
| February | 0 | 7° / 45°F | -3° / 27°F | 48 mm | 3 | 7° / 45°F |
| March | 26 | 12° / 54°F | 1° / 34°F | 69 mm | 4 | 10° / 50°F |
| April | 58 | 18° / 64°F | 6° / 43°F | 114 mm | 5 | 16° / 61°F |
| May | 69 | 24° / 75°F | 12° / 54°F | 119 mm | 6 | 21° / 70°F |
| June | 63 | 27° / 81°F | 17° / 63°F | 164 mm | 6 | 25° / 77°F |
| July | 63 | 29° / 84°F | 22° / 72°F | 295 mm | 6 | 28° / 82°F |
| August | 63 | 30° / 86°F | 22° / 72°F | 264 mm | 7 | 31° / 88°F |
| September | 63 | 26° / 79°F | 17° / 63°F | 157 mm | 6 | 30° / 86°F |
| October | 78 | 21° / 70°F | 10° / 50°F | 67 mm | 4 | 22° / 72°F |
| November | 41 | 14° / 57°F | 3° / 37°F | 47 mm | 3 | 16° / 61°F |
| December | 0 | 7° / 45°F | -3° / 27°F | 34 mm | 2 | 9° / 48°F |
Sea temperature in Yeosu by month
The sea off Yeosu is warmest in August at around 31°C / 88°F, and coolest in January at 5°C / 41°F. The water sits at a comfortable 21°C or warmer roughly 6 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearby places for sunshine
- Gwangju South Korea · 80 km · best in Oct · 1,884 h sun/yr
- Busan South Korea · 126 km · best in Oct · 2,112 h sun/yr
- Gunsan South Korea · 149 km · best in Oct · 1,884 h sun/yr
- Daegu South Korea · 150 km · best in Oct · 2,111 h sun/yr
- Ulsan South Korea · 178 km · best in Oct · 1,954 h sun/yr
- Jeju City South Korea · 180 km · best in Oct · 1,734 h sun/yr
Nearest destinations
- Sacheon South Korea · 50 km · 2,112 h sun/yr · best in Oct
- Muan (Piseo-ri) South Korea · 114 km · 1,890 h sun/yr · best in Oct
Head-to-head
How Yeosu compares month by month: Yeosu vs Busan · Yeosu vs Gwangju · Yeosu vs Ulsan · Yeosu vs Jeju City · all comparisons
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