Jeju City
South Korea · East Asia
Year-round range: 41°F to 84°F
May
Excellent conditions this month
Good beach conditions, with some cloud mixed in. Expect mostly pleasant days.
Your monthly fit score
Comfort fit by month.
Climate details▼
Temperature
Average highs and lows.
May has comfortable temperatures — not too hot, not too cold.
Shaded band = typical daily swing (P10 of night lows to P90 of afternoon peaks) — spans wider than avg high/low lines because it captures day-to-day variation.
| = MayPrecipitation
Monthly precipitation, wet-day risk, and snow signal where relevant.
May has moderate rainfall — occasional showers but mostly manageable.
Sunshine
Average hours of bright sun per day.
May has decent sunshine — a mix of sun and cloud.
Clear sky
Clear-sky share is the inverse of average cloud cover (100% minus cloud cover). Band labels follow standard meteorological categories; distribution within each band varies by day.
Air comfort by month
Humidity and heat feel by month.
May is mostly comfortable — low heat and humidity pressure.
Time-of-day patterns
Typical hourly rhythm for May.
Temperature by hour
Temperature by hour and month
Typical temperature through the day across the year (1996-2025 normals, local time). Shaded cells are nighttime.
In May, afternoons reach about 65° and nights settle near 60°.
▶Full month-by-month data
| Month | High °F | Low °F | Rain days | Rain (in) | Sun h/day | Humidity | Sea °F |
|---|---|---|---|---|---|---|---|
| Jan | 47°F | 41°F | 9 | 2.7in | 3.2h | 67.14285714285714% | 59°F |
| Feb | 48°F | 42°F | 8 | 2.5in | 4.1h | 68.28571428571428% | 57°F |
| Mar | 54°F | 47°F | 8 | 3.6in | 5.6h | 71% | 57°F |
| Apr | 61°F | 54°F | 10 | 3.5in | 6.6h | 74.99999999999999% | 58°F |
| May | 68°F | 61°F | 9 | 3.8in | 6.5h | 79.71428571428571% | 62°F |
| Jun | 74°F | 68°F | 11 | 6.8in | 5.2h | 86.85714285714286% | 68°F |
| Jul | 82°F | 77°F | 17 | 8.0in | 5.7h | 87.71428571428572% | 76°F |
| Aug | 84°F | 79°F | 17 | 9.9in | 6.7h | 83.71428571428571% | 81°F |
| Sep | 78°F | 73°F | 11 | 8.8in | 6.5h | 79.14285714285714% | 77°F |
| Oct | 69°F | 64°F | 7 | 3.6in | 7h | 71.14285714285714% | 72°F |
| Nov | 60°F | 54°F | 8 | 3.0in | 5.4h | 69% | 67°F |
| Dec | 51°F | 44°F | 9 | 2.2in | 3.9h | 67% | 63°F |
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Planning notes
Expect some rain.