UV Index in Biratnagar, Nepal

Last updated: June 2, 2025

Understanding the UV Index in Biratnagar, Nepal, is essential for protecting your skin and overall health. With UV levels reaching a peak of 11 around midday, awareness of these fluctuations can help residents and visitors avoid painful sunburns and long-term skin damage. Biratnagar, characterized by its Cwa climate, experiences significant UV exposure, particularly during the summer months. By staying informed about the UV Index, you can take proactive steps to enjoy the sun safely while safeguarding your skin's health.

Hourly UV Index in Biratnagar

The UV Index paints a vivid picture of the day’s sun exposure. Starting with a gentle morning, the index peaks at 3 by 07:00 and climbs steadily, reaching a striking 11 at 11:00, indicating a high level of UV radiation that calls for protective measures. As the sun graces its zenith, the index holds at 10 around 12:00 before tapering off gradually. By the afternoon, the numbers dip, dropping to 6 by 14:00, and continue their descent to 1 by 17:00, where the sun’s influence wanes. Finally, after 18:00, the UV Index remains at 0, welcoming a safe evening under the fading light. Time spent outdoors should be strategic, particularly during those peak hours, ensuring your skin stays protected.

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	3	moderate	30 min
08:00	6	high	25 min
09:00	8	very high	15 min
10:00	10	very high	15 min
11:00	11	extreme	10 min
12:00	10	very high	15 min
13:00	8	very high	15 min
14:00	6	high	25 min
15:00	3	moderate	30 min
16:00	2	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 Biratnagar

As the seasons change, so do the levels of UV radiation, with notable increases in March through September. During this peak period, from June to August, the UV Index reaches extreme levels, peaking at 13 in July, indicating a high risk of harm from unprotected sun exposure. Visitors and residents should take extra precautions during these months by wearing protective clothing, applying sunscreen regularly, and seeking shade during midday hours. February and October also present moderate to high UV levels, advising continued sun safety awareness. In contrast, January and December see more moderate UV exposure, with longer burn times. Staying informed and vigilant about UV index changes throughout the year will help ensure safety while enjoying outdoor activities.

Monthly Maximum UV Index for Biratnagar, Nepal

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

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

Biratnagar's solar exposure compared to other cities in Nepal. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Biratnagar	5	6	8	9	10	11	13	12	12	9	7	5
Birganj UVI	5	6	8	10	10	12	13	12	11	9	7	5
Patan UVI	5	7	9	11	11	13	14	13	12	10	7	5
Kathmandu UVI	5	7	9	11	11	13	14	13	12	10	7	5
Pokhara UVI	7	9	12	13	14	15	15	15	14	12	8	6