UV Index in Patna, India

Last updated: May 3, 2025

Understanding the UV Index is essential for residents of Patna, India, where the combination of a Cwa climate and intense sun exposure can pose significant risks. Awareness of UV levels can help prevent painful sunburns and support long-term skin health, making it vital to check the index regularly. With UV readings peaking at 9 around midday, residents should be especially cautious during high exposure hours, typically from 10:00 AM to 2:00 PM. By staying informed about the UV Index, you can enjoy the sun safely while protecting your skin from harmful effects.

Hourly UV Index in Patna

As the sun rises, the UV Index steadily climbs, reaching its peak at 11:00 AM with a score of 9, indicating a high risk of harm from unprotected sun exposure. The day begins with a gentle UVI of 2 at 7:00 AM and soon ramps up to 6 by 9:00 AM, encouraging early risers to take precautions. By 10:00 AM, outdoor enthusiasts should be particularly cautious as the index soars to 8. After its midday high, the intensity begins to taper off, dipping to 7 at 1:00 PM and declining further to 5 by 2:00 PM. As the afternoon rolls in, the UV Index calms down, settling at 3 by 3:00 PM, eventually falling to 0 by 6:00 PM, signaling a safe time for evening activities. Emphasizing the changing nature of UV exposure, this data highlights the importance of sun safety, especially during peak hours.

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	2	low	45 min
08:00	4	moderate	30 min
09:00	6	high	25 min
10:00	8	very high	15 min
11:00	9	very high	15 min
12:00	8	very high	15 min
13:00	7	high	25 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 Patna

Throughout the year, the UV Index demonstrates significant seasonal variations, with high-risk months generally occurring from March to October. During this period, especially in July, August, and September, the UV Index reaches an extreme level of 12, indicating a burn time of just 10 minutes. Notably, April and June also showcase a very high index of 10, necessitating diligent sun protection. In contrast, winter months like January and December see a moderate UV Index of 5, allowing for longer exposure times of 30 minutes. Visitors and residents alike are advised to practice sun safety during high-index months—such as wearing protective clothing, using broad-spectrum sunscreen, and seeking shade during peak hours—to minimize the risk of UV-related skin damage.

Monthly Maximum UV Index for Patna, India

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

The table above highlights how UV exposure in Patna 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.

Patna'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
Patna	5	6	8	10	9	10	12	12	12	9	6	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