Weather in Seoul for May 2025
In general, the average temperature in Seoul at the beginning of May is 20.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 24.4 °C by the end of May.
Seoul in May brings notable rainfall, with an average of 19 rainy days and a total precipitation of 177.4 mm.
Is May a good time to visit Seoul? check out the best time to travel to Seoul page.
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Seoul in May average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  19° | 2  20° | 3 22° | 4  23° | |||
| 5  20° | 6 19° | 7 20° | 8 21° | 9 22° | 10 21° | 11 24° |
| 12 25° | 13 25° | 14 24° | 15 22° | 16 22° | 17 23° | 18  24° |
| 19 26° | 20 25° | 21 23° | 22 26° | 23 26° | 24 26° | 25 25° |
| 26  24° | 27 22° | 28 23° | 29 25° | 30 26° | 31 26° |
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Temperatures trend during May in Seoul
May weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Sunny | 19° /9° | 2.1 mm | 5 | |
| 2 May | Moderate rain at times | 20° /9° | 0.9 mm | 5 | |
| 3 May | Sunny | 22° /10° | 0 mm | 6 | |
| 4 May | Overcast | 23° /12° | 4.7 mm | 6 | |
| 5 May | Partly cloudy | 20° /13° | 67.6 mm | 5 | |
| 6 May | Overcast | 19° /11° | 11 mm | 5 | |
| 7 May | Moderate or heavy rain shower | 20° /11° | 1.7 mm | 5 | |
| 8 May | Sunny | 21° /9° | 0.3 mm | 5 | |
| 9 May | Sunny | 22° /10° | 0.1 mm | 6 | |
| 10 May | Moderate or heavy rain shower | 21° /10° | 5.2 mm | 5 | |
| 11 May | Sunny | 24° /12° | 6 mm | 6 | |
| 12 May | Sunny | 25° /12° | 0 mm | 6 | |
| 13 May | Partly cloudy | 25° /13° | 0 mm | 6 | |
| 14 May | Sunny | 24° /13° | 0 mm | 6 | |
| 15 May | Sunny | 22° /11° | 6.4 mm | 6 | |
| 16 May | Sunny | 22° /11° | 21.7 mm | 5 | |
| 17 May | Sunny | 23° /12° | 0.7 mm | 6 | |
| 18 May | Cloudy | 24° /14° | 0.7 mm | 5 | |
| 19 May | Cloudy | 26° /14° | 0 mm | 6 | |
| 20 May | Moderate or heavy rain shower | 25° /15° | 3.6 mm | 6 | |
| 21 May | Cloudy | 23° /13° | 1.6 mm | 5 | |
| 22 May | Partly cloudy | 26° /15° | 0 mm | 7 | |
| 23 May | Sunny | 26° /14° | 0 mm | 7 | |
| 24 May | Overcast | 26° /14° | 0 mm | 6 | |
| 25 May | Sunny | 25° /14° | 2.7 mm | 6 | |
| 26 May | Patchy rain possible | 24° /14° | 1 mm | 6 | |
| 27 May | Moderate or heavy rain shower | 22° /14° | 7.3 mm | 5 | |
| 28 May | Moderate or heavy rain shower | 23° /14° | 17 mm | 5 | |
| 29 May | Patchy rain possible | 25° /14° | 4 mm | 6 | |
| 30 May | Patchy rain possible | 26° /16° | 3 mm | 6 | |
| 31 May | Sunny | 26° /16° | 7.6 mm | 6 | |
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Guide for Seoul in May
May in Seoul, South Korea, is a delightful time as the city transitions from spring to early summer. At the beginning of the month, the weather is generally mild and pleasant. Daytime temperatures typically range from 12° to 20°, making it an ideal time for outdoor activities and sightseeing.
The mornings and evenings can be a bit cooler, so a light jacket or sweater is recommended.
As the month progresses, temperatures gradually rise. By mid-May, daytime temperatures often reach between 16° and 24°. The city starts to experience more sunshine, and the blooming flowers and lush greenery create a picturesque setting.
Rainfall is relatively low during this period, with occasional light showers that do not usually disrupt plans.
Towards the end of May, the weather becomes warmer, with daytime temperatures ranging from 18° to 27°. Humidity levels start to increase, hinting at the approaching summer. Evenings remain comfortable, although lighter clothing becomes more suitable for daytime activities.
The increased warmth and longer daylight hours provide ample opportunities to explore Seoul's vibrant neighborhoods, parks, and cultural sites.
Overall, May in Seoul offers a wonderful blend of mild to warm weather, making it one of the best times to visit the city. Whether you're strolling along the Han River, visiting historical palaces, or enjoying the local cuisine, the pleasant weather enhances the experience.
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Seoul in May - FAQ
What to pack to Seoul in May?
As you prepare for your trip to Seoul 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 Seoul, 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
May rainfall patterns in Seoul
UV exposure in Seoul during May
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Where is Seoul?Get accurate weather forecasts for Seoul, located at latitude 37.566 and longitude 126.978. Stay updated with localized weather information tailored for Seoul.