Jeju-do (Jeju City)
May
Weather in Jeju-do for May 2026
Your guide to Jeju-do weather in May - trends and predictions
In general, the average temperature in Jeju-do at the beginning of May is 18.6 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 22.1 °C by the end of May.
Jeju-do in May brings notable rainfall, with an average of 20 rainy days and a total precipitation of 173.8 mm.
Temperatures
Rain 🌧️
11
Dry days
20
Rainy days
0
Snow days
20°/15°
Temperatures
18 km/h
Avg max wind
69 %
Avg humidity
Jeju-do Weather May
Move between months or click on a day
What’s the Weather Like in Jeju-do This May?
Discover the average temperatures and weather trends across Jeju-do’s cities this May.
Temperatures trend during May in Jeju-do
See the weather trend as well as the moving average line
May weather in Jeju-do day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Cloudy | 17° /11° | 5.9 mm | 4 | |
| 2 May |  Sunny | 17° /11° | 0.1 mm | 4 | |
| 3 May | Sunny | 19° /11° | 2.9 mm | 5 | |
| 4 May |  Moderate or heavy rain shower | 20° /13° | 27.7 mm | 5 | |
| 5 May |  Overcast | 20° /15° | 33.4 mm | 5 | |
| 6 May |  Patchy rain possible | 19° /14° | 4 mm | 5 | |
| 7 May | Sunny | 18° /13° | 4.8 mm | 4 | |
| 8 May | Patchy rain possible | 19° /12° | 0.7 mm | 5 | |
| 9 May | Sunny | 19° /12° | 12.2 mm | 5 | |
| 10 May | Sunny | 20° /14° | 0.5 mm | 5 | |
| 11 May | Moderate rain at times | 20° /14° | 4.1 mm | 5 | |
| 12 May | Moderate or heavy rain shower | 20° /14° | 3.5 mm | 5 | |
| 13 May | Overcast | 19° /14° | 1.4 mm | 5 | |
| 14 May |  Partly cloudy | 20° /14° | 0.9 mm | 5 | |
| 15 May | Moderate or heavy rain shower | 21° /14° | 4.3 mm | 5 | |
| 16 May | Sunny | 22° /16° | 11.4 mm | 5 | |
| 17 May | Overcast | 22° /15° | 0.1 mm | 5 | |
| 18 May | Sunny | 21° /15° | 14 mm | 5 | |
| 19 May | Overcast | 22° /15° | 0.1 mm | 5 | |
| 20 May | Moderate or heavy rain shower | 22° /16° | 14 mm | 5 | |
| 21 May | Sunny | 21° /16° | 3.5 mm | 5 | |
| 22 May | Sunny | 22° /16° | 0.4 mm | 5 | |
| 23 May | Sunny | 22° /16° | 0.9 mm | 5 | |
| 24 May | Patchy rain possible | 21° /16° | 1.4 mm | 5 | |
| 25 May | Sunny | 22° /15° | 0.1 mm | 5 | |
| 26 May | Patchy rain possible | 22° /16° | 4.6 mm | 5 | |
| 27 May | Cloudy | 22° /16° | 2.1 mm | 6 | |
| 28 May | Sunny | 23° /17° | 0.3 mm | 6 | |
| 29 May | Partly cloudy | 22° /17° | 1.8 mm | 6 | |
| 30 May | Overcast | 22° /17° | 5.1 mm | 5 | |
| 31 May | Overcast | 22° /17° | 4.1 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Jeju-do in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Jeju-do forecast closer to your planned date for the most up-to-date weather information.
Change Month
Jeju-do in May - FAQ
What are the expected maximum and minimum temperatures in Jeju-do during May?
During May, expect a variety of temperatures with highs around 20° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Jeju-do during May?
Significant rainfall exceeding 173.8 mm is expected in Jeju-do during May, occurring over more than 20 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Jeju-do during May?
The average wind speed in Jeju-do during May is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Jeju-do
Explore the daily rainfall trends and prepare for Jeju-dos May weather 💧
UV exposure in Jeju-do during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Provinces in Jeju-do
Select a province for an accurate weather forecast
Top locations in Jeju-do
Select a location for an accurate weather forecast
More Locations Quick links
More Jeju-do weather pages
You are here
Where is Jeju-do?Get accurate weather forecasts for Jeju-do, located at latitude 33.51 and longitude 126.522. Stay updated with localized weather information tailored for Jeju-do.
Found a mistake?
We appreciate your attention to details. Tell us here.