Muan (Piseo-ri) weather by month & the best time to visit
🇰🇷 South Korea · beach resort · humid subtropical climate
The best time to visit Muan (Piseo-ri) is October — its sunniest month (Sunshine Score 72/100), with May and June close behind. Muan (Piseo-ri) averages about 1,890 hours of sunshine a year. Daytime highs around 19°C / 66°F and roughly 63 mm of rain in October.
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- Sun hours / year
- 1,890
- Sunniest month
- October
- Peak score
- 72/100
- Rain / year
- 1,291 mm
- Midday UV at peak
- 7 (high)
- Sea at warmest
- 32°C / 90°F
- Population
- 92k
- Elevation
- 12 m
When is the best time to visit Muan (Piseo-ri)?
For sunshine, the best time to visit Muan (Piseo-ri) is October, then May and June. The dullest month is January (0/100, 32 mm of rain). The full month-by-month picture is in the table below.
How sunny is Muan (Piseo-ri)?
Muan (Piseo-ri) gets a moderate 1,890 hours of sunshine a year. 72 Sunshine Score points separate October (72) from January (0), so the month you pick matters. It ranks #11 of 14 destinations in South Korea for annual sunshine, below the national median of 1,959 hours. Rain has a clear season: the wettest stretch, around July, carries about 51% of the annual 1,291 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | 5° / 41°F | 1° / 34°F | 32 mm | 2 | 7° / 45°F |
| February | 0 | 6° / 43°F | 1° / 34°F | 45 mm | 3 | 7° / 45°F |
| March | 7 | 9° / 48°F | 4° / 39°F | 61 mm | 4 | 9° / 48°F |
| April | 36 | 14° / 57°F | 8° / 46°F | 98 mm | 5 | 15° / 59°F |
| May | 65 | 19° / 66°F | 13° / 55°F | 104 mm | 6 | 20° / 68°F |
| June | 63 | 23° / 73°F | 18° / 64°F | 146 mm | 5 | 25° / 77°F |
| July | 62 | 26° / 79°F | 22° / 72°F | 269 mm | 6 | 28° / 82°F |
| August | 62 | 28° / 82°F | 24° / 75°F | 242 mm | 7 | 32° / 90°F |
| September | 63 | 24° / 75°F | 20° / 68°F | 143 mm | 6 | 29° / 84°F |
| October | 72 | 19° / 66°F | 14° / 57°F | 63 mm | 4 | 21° / 70°F |
| November | 34 | 13° / 55°F | 9° / 48°F | 49 mm | 3 | 16° / 61°F |
| December | 0 | 7° / 45°F | 3° / 37°F | 39 mm | 2 | 9° / 48°F |
Sea temperature in Muan (Piseo-ri) by month
The sea off Muan (Piseo-ri) is warmest in August at around 32°C / 90°F, and coolest in January at 7°C / 45°F. The water sits at a comfortable 21°C or warmer roughly 5 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Muan (Piseo-ri) on the interactive sunshine globe →
Nearby places for sunshine
- Gwangju South Korea · 41 km · best in Oct · 1,884 h sun/yr
- Gunsan South Korea · 104 km · best in Oct · 1,884 h sun/yr
- Yeosu South Korea · 114 km · best in Oct · 2,024 h sun/yr
- Jeju City South Korea · 165 km · best in Oct · 1,734 h sun/yr
- Cheongju South Korea · 217 km · best in May · 1,963 h sun/yr
- Daegu South Korea · 229 km · best in Oct · 2,111 h sun/yr
Nearest destinations
- Sacheon South Korea · 154 km · 2,112 h sun/yr · best in Oct
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