Jeju City
May
Weather in Jeju City for May 2025
Your guide to Jeju City weather in May - trends and predictions
In general, the average temperature in Jeju City 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 City 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 City 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 City
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 City 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 City forecast closer to your planned date for the most up-to-date weather information.
Jeju City in May - FAQ
What are the expected maximum and minimum temperatures in Jeju City 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 City during May?
Significant rainfall exceeding 146 mm is expected in Jeju City 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 City during May?
The average wind speed in Jeju City during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Jeju City in May?
As you prepare for your trip to Jeju City 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 City, 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
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