Jeju City weather
At 3:30 AM local time it was clear and 14°C (57°F). Mostly light, on-and-off rain; heavier around 8 PM, 9 PM (5.6 mm total). Best months for weather: Oct. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Jeju City, Jeju-do, South Korea. Weather differs from one side of the island to the other.
Current conditions
- Clouds
- 5%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Mostly light, on-and-off rain; heavier around 8 PM, 9 PM (5.6 mm total)
Daily Forecast
Best Time to Visit
Peak season OctOff season Jul–Aug, Dec–Apr
About Jeju City weather
Is it raining in Jeju City right now?
No. It’s clear and 14° right now. Mostly light, on-and-off rain; heavier around 8 PM, 9 PM (5.6 mm total).
What’s the weather like in Jeju City this week?
Over the next 7 days, expect highs of 14–22° and lows of 9–16°. Rain is likely on 5 of 7 days (Sunday, Monday, Wednesday, Thursday, Friday). The driest day looks like Tuesday.
Has it been raining in Jeju City lately?
In the past 7 days, Jeju City had 3 rainy days and 53.2 mm of rain in total.
What should I pack for Jeju City?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.
Jeju City weather by month
When is the best time to visit Jeju City?
Based on weather alone, the best time to visit Jeju City is Oct, according to NASA's 2001–2025 climate averages. Jul–Aug, Dec–Apr tends to be the least pleasant. Average highs run from 9°C (48°F) in January to 28°C (82°F) in August.
What is the rainiest month in Jeju City?
August is the wettest month, with about 261 mm (10.3 in) of rain on average. January is the driest, with about 50 mm (2.0 in).
What is the hottest month in Jeju City?
August is the warmest, with average highs of 28°C (82°F) and lows of 26°C (79°F). January is the coolest, with highs of 9°C (48°F) and lows of 6°C (43°F).
Does Jeju City have a rainy season?
Yes. Jun–Sep is the rainy season (150 mm or more a month), while Dec–Jan is usually dry (under 60 mm).
How warm is the sea in Jeju City?
The sea is warmest in August at about 30°C (87°F) and coolest in March at about 14°C (56°F). It is comfortable for swimming (22°C or more) in Jul–Oct.
Jeju City weather month by month
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), sea temperature from Open-Meteo Marine, forecast and current conditions from Open-Meteo. Page updated . How we rate months