UV Index in Johor Bahru, Malaysia

Last updated: June 2, 2025

Understanding the UV Index in Johor Bahru, Malaysia is crucial for safeguarding your skin health and preventing sunburn, especially as the region experiences a hot and humid climate typical of an Af climate zone. With UV levels often peaking at a striking 12 around midday, residents and visitors alike should be vigilant about sun exposure. Being informed about UV levels not only helps in planning outdoor activities but also plays a vital role in long-term skin protection, allowing everyone to enjoy Johor Bahru's vibrant culture while minimizing health risks. Stay informed, stay protected!

Hourly UV Index in Johor Bahru

The UV Index throughout the day showcases a dramatic rise as the sun climbs higher in the sky. Starting at a low 1 by 07:00, the intensity gradually increases to 3 by 09:00. The real heat kicks in at 11:00, peaking at an impressive 12 by 13:00, making this the prime time for sun protection. As the afternoon progresses, values slowly dip, dropping to 5 by 16:00 and all the way to 1 again by the evening. For those planning outdoor activities, it’s essential to stay vigilant around midday when the UV Index reaches its maximum—11 to 12—to ensure safety under the sun!

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	3	moderate	30 min
10:00	5	moderate	30 min
11:00	9	very high	15 min
12:00	11	extreme	10 min
13:00	12	extreme	10 min
14:00	11	extreme	10 min
15:00	8	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 Johor Bahru

Throughout the year, the UV Index remains consistently high, with values ranging from 12 to 16, categorizing all months as having an extreme exposure risk. The highest UV Index is observed in March at 16, while February shows a close value of 15. Visitors and residents should particularly be cautious during the peak months from February to April when the burn time is only 10 minutes. To mitigate the risk of skin damage, it is essential to take protective measures such as wearing sunscreen, sunglasses, and protective clothing, especially during these high-risk months. Regularly checking the UV Index and planning outdoor activities accordingly can help ensure safety under the sun year-round.

Monthly Maximum UV Index for Johor Bahru, Malaysia

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

The table above highlights how UV exposure in Johor Bahru 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.

Johor Bahru'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	13	15	16	14	13	12	12	13	14	14	13	13