Jeju Island in April
In April, Jeju Island averages 17°C (62°F) during the day and 11°C (52°F) at night, with around 10 days of rain (130 mm total).
ShoulderConditions are cool — bring a jacket for evenings. Plan for unsettled weather and bring rain gear.
April in Jeju Island is outside the typical sweet spot for sightseeing weather. It can still be a great time to visit if you have specific reasons (festivals, off-season pricing, etc.).
How April compares to the rest of the year in Jeju Island
April is in the middle of the year for warmth in Jeju Island (7th of 12) and one of the driest months (10th of 12). Daytime temperature runs 1°C below the annual average (18°C). April runs 4°C warmer than March (13°C) and warms a further 5°C into May (21°C).
April sunrise & sunset in Jeju Island
Times shown for Jeju Island local time (Asia/Seoul), calculated for the 15th of April. They shift by a few minutes day to day across the month.
Photography light in Jeju Island — April
Golden-hour and blue-hour windows for the 15th of April, in Jeju Island's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Jeju Island in April
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on April's tier (Shoulder) and Jeju Island's popularity.
Crowds & pricing — April in Jeju Island
Jeju Island is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Why this tier: comfortable tourism weather
Sun & mosquito risk — April in Jeju Island
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Jeju Island in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 8°C / 46°F | 3°C / 38°F | 90 mm | 11 | — |
| February | 8°C / 47°F | 4°C / 38°F | 73 mm | 10 | — |
| March | 13°C / 55°F | 7°C / 45°F | 112 mm | 10 | — |
| April | 17°C / 62°F | 11°C / 52°F | 130 mm | 10 | — |
| May | 21°C / 71°F | 16°C / 60°F | 147 mm | 10 | — |
| June | 24°C / 76°F | 20°C / 67°F | 206 mm | 14 | — |
| July | 28°C / 83°F | 24°C / 75°F | 253 mm | 18 | — |
| August | 29°C / 84°F | 25°C / 77°F | 269 mm | 18 | — |
| September | 25°C / 77°F | 22°C / 71°F | 359 mm | 17 | — |
| October | 20°C / 69°F | 16°C / 61°F | 152 mm | 10 | — |
| November | 15°C / 60°F | 11°C / 51°F | 88 mm | 11 | — |
| December | 10°C / 49°F | 5°C / 42°F | 85 mm | 14 | — |
Other cities with similar April weather
🌍 See the full ranked list of climate twins for Jeju Island in April →
Frequently asked questions
How hot is Jeju Island in April?
In April, Jeju Island averages a high of 17°C (62°F) and a low of 11°C (52°F) — generally mild and pleasant.
Does it rain a lot in Jeju Island in April?
April can be fairly wet in Jeju Island, with about 10 rainy days on average.
Is April a good time to visit Jeju Island?
April is mild and pleasant. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Jeju Island in April?
Pack a warm jacket and layers, plus a compact umbrella or rain jacket. See the full April packing list for Jeju Island for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.