Incheon
May
Weather in Incheon for May 2026
Your guide to Incheon weather in May - trends and predictions
In general, the average temperature in Incheon at the beginning of May is 18 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 22.7 °C by the end of May.
Incheon in May brings notable rainfall, with an average of 17 rainy days and a total precipitation of 171.5 mm.
Temperatures
Rain 🌧️
14
Dry days
17
Rainy days
0
Snow days
20°/13°
Temperatures
20 km/h
Avg max wind
62 %
Avg humidity
Incheon Weather May
Move between months or click on a day
Temperatures trend during May in Incheon
See the weather trend as well as the moving average line
May weather in Incheon day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Partly cloudy | 18° /10° | 8.8 mm | 4 | |
| 2 May |  Overcast | 19° /10° | 0.3 mm | 5 | |
| 3 May |  Cloudy | 19° /10° | 3.1 mm | 5 | |
| 4 May | Overcast | 20° /12° | 1.8 mm | 5 | |
| 5 May |  Moderate or heavy rain shower | 17° /13° | 81.7 mm | 4 | |
| 6 May | Moderate or heavy rain shower | 15° /11° | 14.6 mm | 4 | |
| 7 May |  Patchy rain possible | 18° /11° | 0.7 mm | 4 | |
| 8 May |  Sunny | 19° /9° | 0 mm | 5 | |
| 9 May | Sunny | 18° /12° | 7.3 mm | 5 | |
| 10 May | Overcast | 19° /11° | 1.9 mm | 5 | |
| 11 May | Sunny | 19° /11° | 7 mm | 5 | |
| 12 May | Sunny | 19° /11° | 0 mm | 5 | |
| 13 May | Sunny | 20° /13° | 0 mm | 6 | |
| 14 May | Sunny | 22° /13° | 0 mm | 6 | |
| 15 May | Light rain shower | 19° /11° | 10.9 mm | 5 | |
| 16 May | Sunny | 21° /13° | 1.1 mm | 5 | |
| 17 May | Sunny | 22° /14° | 0.1 mm | 6 | |
| 18 May | Moderate rain at times | 20° /14° | 1 mm | 5 | |
| 19 May | Partly cloudy | 23° /15° | 0.1 mm | 6 | |
| 20 May | Overcast | 21° /15° | 0.3 mm | 5 | |
| 21 May | Overcast | 24° /16° | 0.1 mm | 6 | |
| 22 May | Overcast | 23° /16° | 1.1 mm | 5 | |
| 23 May | Sunny | 22° /14° | 2.2 mm | 5 | |
| 24 May | Overcast | 21° /14° | 0.3 mm | 5 | |
| 25 May | Sunny | 22° /14° | 0 mm | 6 | |
| 26 May | Sunny | 22° /15° | 1 mm | 5 | |
| 27 May | Partly cloudy | 21° /15° | 5.8 mm | 5 | |
| 28 May | Moderate or heavy rain shower | 23° /16° | 13.7 mm | 5 | |
| 29 May | Sunny | 24° /16° | 5.9 mm | 6 | |
| 30 May | Moderate rain at times | 24° /17° | 0.4 mm | 6 | |
| 31 May | Cloudy | 23° /17° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Incheon 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 Incheon forecast closer to your planned date for the most up-to-date weather information.
Change Month
Incheon in May - FAQ
What are the expected maximum and minimum temperatures in Incheon during May?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Incheon during May?
Significant rainfall exceeding 171.5 mm is expected in Incheon during May, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Incheon during May?
The average wind speed in Incheon during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Incheon
Explore the daily rainfall trends and prepare for Incheons May weather 💧
UV exposure in Incheon during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Quick links
More Incheon weather pages
You are here
Where is Incheon?Get accurate weather forecasts for Incheon, located at latitude 37.456 and longitude 126.705. Stay updated with localized weather information tailored for Incheon.
Found a mistake?
We appreciate your attention to details. Tell us here.