UV Index in Tsuen Wan, Hong Kong

Last updated: July 2, 2025

Understanding the UV Index in Tsuen Wan, Hong Kong is crucial for safeguarding your skin and overall health. With UV levels peaking at 11 during midday, awareness of these fluctuations can significantly reduce the risk of sunburn and long-term skin damage. The Cwa climate in Tsuen Wan fosters hot summers with intense sun exposure, making it essential to stay informed about daily UV levels. By keeping an eye on the UV Index, residents and visitors alike can make informed choices about sun protection, ensuring a healthier and more enjoyable time outdoors.

Hourly UV Index in Tsuen Wan

As the sun rises, the UV Index begins its ascent, starting at a moderate 1 at 07:00. By 08:00, it climbs to a 3, but the real intensity emerges by 10:00, peaking at an impressive 11, indicating a high risk of harm from unprotected sun exposure. The intensity remains fierce, soaring to a maximum of 13 at 12:00 and 13:00, before gradually receding. As afternoon fades into evening, the UV Index drops to 8 at 15:00, and then quickly descends to 1 by 18:00. This daily pattern serves as a reminder to stay protected during the peak hours to enjoy the sun safely!

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	9	very high	15 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	5	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 Tsuen Wan

The UV Index experiences significant seasonal variation, with the highest levels typically occurring from March to October. During February to October, the UV Index often falls into the very high to extreme categories, with March to May peaking at an index of 14 in May. High-risk months are primarily from February (10) to October (11), where sunburn can occur in as little as 10 to 15 minutes of unprotected exposure. Residents and visitors are advised to take protective measures such as wearing sunscreen, protective clothing, and sunglasses, especially during these high-risk months to minimize the risk of skin damage.

Monthly Maximum UV Index for Tsuen Wan, Hong Kong

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Tsuen Wan. 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 Tsuen Wan, 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 Tsuen Wan UV Index with Other Hong Kong Cities

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

Tsuen Wan's solar exposure compared to other cities in Hong Kong. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Tsuen Wan	7	10	12	12	14	13	13	13	12	11	9	7
Tung Chung UVI	7	10	12	12	14	13	13	13	12	11	9	7
Yuen Long Kau Hui UVI	7	10	12	12	14	13	13	13	12	11	9	7
Kowloon UVI	7	10	12	12	14	13	13	13	12	11	9	7
Hong Kong UVI	7	10	12	12	14	13	13	13	12	11	9	7