UV Index in Muar, Malaysia

Last updated: June 2, 2025

Understanding the UV Index is vital for residents of Muar, Malaysia, where the tropical climate often exposes us to high UV levels. The UV Index serves as a daily reminder of the sun’s intensity, helping to prevent sunburn and protect skin health. During peak hours, especially between 11 AM and 2 PM, the UV Index can soar to dangerous levels of 11-12, highlighting the need for effective sun protection. With Muar's warm, sunny climate, being aware of these UV exposure risks is essential for safeguarding your well-being while enjoying the outdoors. Stay informed, stay protected!

Hourly UV Index in Muar

The UV Index throughout the day shows a notable fluctuation, beginning with a gentle start. At 07:00 and 08:00, the index remains low at 1. However, as the morning progresses, it rises significantly, peaking at 12:00 with a striking 11, indicating intense sun exposure. The index remains elevated, reaching its maximum of 12 at 13:00, before gradually declining in the afternoon. By 15:00, it drops to 9, and then further to 3 by 17:00. As the day winds down, the UV Index falls back to a comfortable 1 by 18:00 and 19:00. This day's UV trend highlights the crucial need for sun safety measures, especially during the midday hours when the sun is at its strongest.

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	1	low	45 min
09:00	2	low	45 min
10:00	5	moderate	30 min
11:00	8	very high	15 min
12:00	11	extreme	10 min
13:00	12	extreme	10 min
14:00	11	extreme	10 min
15:00	9	very high	15 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Muar

The UV Index in our region reveals a pattern of extreme sun exposure throughout the year, with the highest values observed from February to April, peaking at 16 in March. January also shows a remarkably high index of 13, indicating that high-risk months for UV exposure include February, March, and April. Residents and visitors should exercise caution year-round, as the burn time remains consistently low at just 10 minutes, even during the summer months of June and July, which hold a lower but still significant UV index of 12. It is crucial for everyone to take preventative measures, such as applying sunscreen, wearing protective clothing, and seeking shade during peak hours, to safeguard against the harmful effects of UV radiation.

Monthly Maximum UV Index for Muar, Malaysia

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Muar. 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 Muar, 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 Muar UV Index with Other Malaysia Cities

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

Muar's solar exposure compared to other cities in Malaysia. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Kampung Baru Subang UVI	13	15	15	14	13	12	12	13	14	14	13	12
Klang UVI	13	15	15	14	13	12	12	13	14	14	13	12
Kuala Lumpur UVI	13	15	15	14	13	12	12	13	14	14	13	12
Kota Bharu UVI	13	15	16	15	14	13	12	13	14	14	12	12
Johor Bahru UVI	13	15	16	14	13	12	12	13	14	14	13	13
Muar	13	15	16	15	14	12	12	13	14	14	13	13