UV Index in Sirajganj, Bangladesh

Last updated: August 1, 2025

Understanding the UV Index is crucial for residents of Sirajganj, Bangladesh, where tropical conditions often lead to heightened sun exposure. With UV levels peaking at 13 during midday hours, awareness of these levels is essential for sunburn prevention and maintaining skin health. Recognizing the risks associated with strong UV radiation can help locals protect themselves, particularly as the warm Aw climate creates an environment ripe for skin-related issues. Stay informed about the UV Index to safeguard your health while enjoying the beautiful sunshine of Sirajganj!

Hourly UV Index in Sirajganj

As the sun rises, the UV Index gradually climbs, starting at a modest 2 at 7:00 AM. By 8:00 AM, it sharply increases to 4, setting the stage for the day's peak. The intensity hits its zenith at 12:00 PM, soaring to 13—a potent reminder to take sun safety precautions. As the afternoon unfolds, the UV levels begin to wane, dipping to 9 by 2:00 PM and further declining to 6 by 3:00 PM. The evening brings a gentle decline, with the index falling to 2 by 5:00 PM and tapering off to 0 by 7:00 PM. This dynamic pattern emphasizes the importance of sun protection, particularly during the midday hours when the UV rays are 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	3	moderate	30 min
09:00	6	high	25 min
10:00	10	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	12	extreme	10 min
14:00	9	very high	15 min
15:00	6	high	25 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Sirajganj

Throughout the year, UV Index levels vary significantly, with the highest values typically occurring in summer months. From March to September, the UV Index peaks, reaching extreme levels of 12 to 13 during May through August, where unprotected skin can burn in just 10 minutes. March and April also show very high levels at 9 and 10, respectively, indicating that sun safety is crucial. Months to be particularly vigilant about UV exposure include May, June, July, and August, which pose the greatest risk for skin damage. As the year progresses, the UV Index drops in autumn and winter, with January and December being relatively safer months, yet still advising caution with moderate to high levels. Residents and visitors should plan outdoor activities accordingly, using sun protection measures during peak UV times, particularly from midday to early afternoon.

Monthly Maximum UV Index for Sirajganj, Bangladesh

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

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

Sirajganj's solar exposure compared to other cities in Bangladesh. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Rajshahi UVI	5	7	8	9	10	12	13	13	12	10	7	5
Dhaka UVI	5	7	9	9	12	13	13	13	12	11	7	6
Sirajganj	5	7	9	10	12	12	13	13	12	10	8	6
Comilla UVI	6	7	9	10	12	13	13	13	12	10	8	6
Khulna UVI	5	7	9	10	13	13	13	14	12	11	8	6
Chattogram UVI	6	8	10	10	12	13	13	13	12	11	8	6