Jeju-si (Jeju City)
May
Weather in Jeju-si for May 2025
Your guide to Jeju-si weather in May - trends and predictions
In general, the average temperature in Jeju-si at the beginning of May is 17.9 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 21.9 °C by the end of May.
Jeju-si sees moderate rainfall in May, averaging 10 rainy days.
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21
Dry days
10
Rainy days
0
Snow days
20°/15°
Temperatures
20 km/h
Avg max wind
68 %
Avg humidity
Jeju-si in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  14° | 2  16° | 3  18° | 4  21° | |||
| 5  20° | 6 18° | 7 18° | 8 15° | 9 18° | 10 21° | 11  22° |
| 12 18° | 13 18° | 14 20° | 15 19° | 16 18° | 17  22° | 18 22° |
| 19 23° | 20 22° | 21 22° | 22 22° | 23 22° | 24 22° | 25 23° |
| 26 24° | 27 21° | 28 20° | 29 22° | 30 22° | 31 21° |
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Temperatures trend during May in Jeju-si
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Light rain shower | 14° /13° | 1.3 mm | 3 | |
| 2 May | Cloudy | 16° /12° | 0 mm | 4 | |
| 3 May | Sunny | 18° /12° | 0 mm | 5 | |
| 4 May | Partly cloudy | 21° /13° | 0.1 mm | 6 | |
| 5 May | Heavy rain | 20° /17° | 114.6 mm | 5 | |
| 6 May | Patchy rain possible | 18° /15° | 0.5 mm | 4 | |
| 7 May | Sunny | 18° /14° | 0.1 mm | 5 | |
| 8 May | Patchy rain possible | 15° /13° | 2.8 mm | 4 | |
| 9 May | Sunny | 18° /12° | 0 mm | 5 | |
| 10 May | Sunny | 21° /14° | 0 mm | 6 | |
| 11 May | Patchy light drizzle | 22° /15° | 7.4 mm | 5 | |
| 12 May | Light rain | 18° /13° | 8.1 mm | 4 | |
| 13 May | Sunny | 18° /12° | 0 mm | 5 | |
| 14 May | Sunny | 20° /14° | 0 mm | 6 | |
| 15 May | Light rain | 19° /12° | 2.4 mm | 4 | |
| 16 May | Sunny | 18° /14° | 0 mm | 5 | |
| 17 May | Overcast | 22° /14° | 0 mm | 5 | |
| 18 May | Sunny | 22° /15° | 0 mm | 6 | |
| 19 May | Sunny | 23° /15° | 0 mm | 6 | |
| 20 May | Overcast | 22° /17° | 0 mm | 5 | |
| 21 May | Sunny | 22° /16° | 0 mm | 6 | |
| 22 May | Sunny | 22° /17° | 0 mm | 6 | |
| 23 May | Sunny | 22° /17° | 0 mm | 6 | |
| 24 May | Sunny | 22° /17° | 0 mm | 6 | |
| 25 May | Sunny | 23° /17° | 0 mm | 6 | |
| 26 May | Light rain shower | 24° /18° | 7 mm | 5 | |
| 27 May | Cloudy | 21° /16° | 0.6 mm | 5 | |
| 28 May | Partly cloudy | 20° /16° | 0 mm | 6 | |
| 29 May | Partly cloudy | 22° /16° | 0 mm | 6 | |
| 30 May | Overcast | 22° /16° | 0 mm | 5 | |
| 31 May | Patchy rain possible | 21° /16° | 1.1 mm | 5 | |
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Important Notice
Our weather forecast for Jeju-si 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-si forecast closer to your planned date for the most up-to-date weather information.
Jeju-si in May - FAQ
What are the expected maximum and minimum temperatures in Jeju-si 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-si during May?
Significant rainfall exceeding 146 mm is expected in Jeju-si during May, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Jeju-si during May?
The average wind speed in Jeju-si during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Jeju-si in May?
As you prepare for your trip to Jeju-si in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Jeju-si, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Umbrellas/Raincoats: For rainy days
May rainfall patterns in Jeju-si
Explore the daily rainfall trends and prepare for Jeju-sis May weather 💧
UV exposure in Jeju-si during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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