UV Index in Changsu, South Korea

Last updated: May 3, 2025

In Changsu, South Korea, staying aware of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding UV levels can empower residents and visitors to enjoy the outdoors safely, especially during peak hours when the UV Index reaches a maximum of 10 around noon. Changsu experiences a Dfa climate, characterized by hot summers, which can intensify UV exposure risks. By staying informed about daily UV fluctuations, you can take proactive measures to protect your skin from harmful rays while enjoying everything this vibrant city has to offer.

Hourly UV Index in Changsu

As the sun rises, the UV Index gradually transitions from a mild 1 at 07:00 to an invigorating 3 by 08:00. The peak UV intensity hits its stride between 12:00 and 13:00, reaching a striking 10, a clear call for sun protection. As the afternoon progresses, the index begins to decline, tapering off to 8 at 14:00, 6 at 15:00, and eventually settling to a gentle 2 by 17:00. By evening, the UV levels dip back down, returning to a safe 1, indicating it's time to relax and enjoy the cooler, softer light of sunset.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	3	moderate	30 min
09:00	5	moderate	30 min
10:00	7	high	25 min
11:00	9	very high	15 min
12:00	10	very high	15 min
13:00	10	very high	15 min
14:00	8	very high	15 min
15:00	6	high	25 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Changsu

Throughout the year, the UV Index exhibits significant seasonal changes, with high-risk months primarily occurring from March to September. During these months, UV levels climb sharply, peaking at an extreme 12 in July and August, where the burn time is reduced to just 10 minutes. As summer transitions to fall, UV exposure slightly declines but remains notable, hitting 10 in April, May, and September, with burn times of only 15 minutes. Visitors and residents are strongly advised to take precautions during these high-risk months by wearing sunscreen, protective clothing, and sunglasses, particularly during midday when the sun's rays are most intense. From late fall through winter, while the UV Index drops to moderate levels (3-5), it's still important to remain cautious, especially if spending extended time outdoors.

Monthly Maximum UV Index for Changsu, South Korea

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Changsu. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Changsu, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare Changsu UV Index with Other South Korea Cities

The table above highlights how UV exposure in Changsu compares to other major locations across South Korea. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Changsu's solar exposure compared to other cities in South Korea. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Incheon UVI	3	4	6	8	9	10	11	11	9	6	4	3
Seoul UVI	3	4	6	8	9	10	11	11	9	6	4	3
Daejeon UVI	3	5	7	9	9	11	11	12	10	7	5	3
Daegu UVI	3	5	7	10	10	11	12	12	10	7	5	3
Busan UVI	4	5	7	10	10	11	12	12	10	7	5	3
Changsu	4	5	7	10	10	11	12	12	10	7	5	3