UV Index in Port Blair, India

Last updated: June 2, 2025

Understanding the UV Index in Port Blair, India is crucial for maintaining skin health and preventing sunburn. With the tropical Am climate of this beautiful archipelago, residents and visitors alike face significant risks from UV radiation, especially during peak hours. From a maximum UV Index of 13 around midday, the potential for harmful effects on the skin is high, making awareness and protection essential. By keeping an eye on the UV levels, you can enjoy the sun safely while safeguarding your skin against long-term damage.

Hourly UV Index in Port Blair

As the sun rises, the UV Index begins its ascent, hitting a moderate level of 4 by 7:00 AM. However, as the morning progresses, a stark increase is observed, peaking at a blistering 13 by 10:00 AM and maintaining this intensity until 11:00 AM. Even at 12:00 PM, the index remains significant at 12, making midday the perfect time to seek shade or don protective gear. From 1:00 PM onwards, the UV levels begin to dip, dropping to 9 by 1:00 PM, and continuing on a downward trend. By 3:00 PM, it falls to 3, and after 4:00 PM, it dwindles to a minimal 1, eventually hitting 0 by 6:00 PM. This progression highlights the importance of midday sun protection as the day's UV exposure peaks.

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	4	moderate	30 min
08:00	7	high	25 min
09:00	11	extreme	10 min
10:00	13	extreme	10 min
11:00	13	extreme	10 min
12:00	12	extreme	10 min
13:00	9	very high	15 min
14:00	5	moderate	30 min
15:00	3	moderate	30 min
16:00	1	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Port Blair

Throughout the year, the UV Index remains consistently high, particularly from January to October, where it frequently reaches extreme levels of 11 to 15. This period indicates a high risk of harm from unprotected sun exposure, with a rapid burn time of just 10 minutes for most months. March stands out as the peak month with a UV Index of 15, signaling an urgent need for protective measures. November and December show a slight decline, with UV Index values of 11 and 10, respectively, but still warrant caution as they are categorized as very high and high. To ensure safety, residents and visitors alike should adopt robust sun protection strategies, including wearing sunscreen, protective clothing, and seeking shade, especially during the high-risk months.

Monthly Maximum UV Index for Port Blair, India

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

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

Port Blair's solar exposure compared to other cities in India. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Delhi UVI	5	6	9	10	10	10	12	12	9	8	5	5
Mumbai UVI	8	9	10	11	11	12	13	13	11	10	7	7
Ahmedabad UVI	7	8	10	12	11	12	13	13	11	10	7	6
Hyderabad UVI	10	11	12	11	13	13	15	14	13	11	8	8
Bengaluru UVI	11	13	13	14	13	14	14	14	14	12	11	10
Port Blair	11	13	15	14	14	13	14	14	14	13	11	10