South Korea
May
Weather in South Korea for May 2025
Your guide to South Korea weather in May - trends and predictions
In general, the average temperature in South Korea at the beginning of May is 21 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 25.1 °C by the end of May.
South Korea sees moderate rainfall in May, averaging 7 rainy days.
Is May a good time to visit South Korea? check out the best time to travel to South Korea page.
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24
Dry days
7
Rainy days
0
Snow days
24°/13°
Temperatures
16 km/h
Avg max wind
55 %
Avg humidity
South Korea in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  21° | 2  22° | 3  25° | 4 26° | |||
| 5  19° | 6 15° | 7  19° | 8 22° | 9 21° | 10 23° | 11 23° |
| 12 22° | 13 23° | 14 23° | 15 22° | 16 23° | 17 25° | 18 23° |
| 19 27° | 20 24° | 21  26° | 22 26° | 23 26° | 24 27° | 25 26° |
| 26 25° | 27 23° | 28 22° | 29  27° | 30 27° | 31 26° |
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Temperatures trend during May in South Korea
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 | Sunny | 21° /10° | 0 mm | 6 | |
| 2 May | Overcast | 22° /10° | 0 mm | 6 | |
| 3 May | Partly cloudy | 25° /13° | 0 mm | 7 | |
| 4 May | Overcast | 26° /14° | 1.2 mm | 6 | |
| 5 May | Moderate or heavy rain shower | 19° /16° | 132.8 mm | 5 | |
| 6 May | Moderate or heavy rain shower | 15° /12° | 22 mm | 4 | |
| 7 May | Patchy rain possible | 19° /10° | 1 mm | 5 | |
| 8 May | Sunny | 22° /8° | 0 mm | 6 | |
| 9 May | Sunny | 21° /11° | 0 mm | 6 | |
| 10 May | Overcast | 23° /11° | 0 mm | 6 | |
| 11 May | Sunny | 23° /12° | 12 mm | 6 | |
| 12 May | Overcast | 22° /11° | 0 mm | 6 | |
| 13 May | Partly cloudy | 23° /12° | 0 mm | 6 | |
| 14 May | Sunny | 23° /13° | 0 mm | 6 | |
| 15 May | Sunny | 22° /9° | 8.7 mm | 6 | |
| 16 May | Sunny | 23° /10° | 2.2 mm | 6 | |
| 17 May | Sunny | 25° /13° | 0 mm | 7 | |
| 18 May | Moderate or heavy rain shower | 23° /15° | 1.5 mm | 6 | |
| 19 May | Partly cloudy | 27° /15° | 0 mm | 7 | |
| 20 May | Overcast | 24° /15° | 0 mm | 5 | |
| 21 May | Cloudy | 26° /15° | 0.1 mm | 6 | |
| 22 May | Patchy rain possible | 26° /16° | 0.1 mm | 7 | |
| 23 May | Sunny | 26° /14° | 0 mm | 7 | |
| 24 May | Overcast | 27° /15° | 0 mm | 7 | |
| 25 May | Sunny | 26° /16° | 0 mm | 7 | |
| 26 May | Sunny | 25° /16° | 1.8 mm | 7 | |
| 27 May | Moderate or heavy rain shower | 23° /15° | 9 mm | 6 | |
| 28 May | Moderate or heavy rain shower | 22° /15° | 24.3 mm | 5 | |
| 29 May | Heavy rain at times | 27° /16° | 7.4 mm | 7 | |
| 30 May | Patchy rain possible | 27° /17° | 0.6 mm | 6 | |
| 31 May | Heavy rain at times | 26° /16° | 0.7 mm | 7 | |
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Important Notice
Our weather forecast for South Korea 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 South Korea forecast closer to your planned date for the most up-to-date weather information.
South Korea in May - FAQ
What are the expected maximum and minimum temperatures in South Korea during May?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in South Korea during May?
Significant rainfall exceeding 447.1 mm is expected in South Korea during May, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in South Korea during May?
The average wind speed in South Korea during May is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to South Korea in May?
As you prepare for your trip to South Korea 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 South Korea, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
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