UV Index in Manja, Madagascar

Last updated: June 2, 2025

In Manja, Madagascar, being aware of the UV Index is crucial for safeguarding your skin against harmful ultraviolet radiation. Understanding the UV levels throughout the day can significantly aid in preventing sunburn and promoting overall skin health. With a climate that falls under the Aw zone, residents and visitors alike should be particularly mindful of peak UV exposure times, especially between 10:00 AM and 2:00 PM, when the index often reaches levels of 6 to 7. By staying informed about the UV Index, you can enjoy the beautiful Malagasy sun while protecting yourself from its potentially damaging effects.

Hourly UV Index in Manja

The UV Index reveals an early morning reprieve, starting at a gentle 1 at 7:00 AM and remaining low through 9:00 AM. However, as the sun climbs, intensity increases sharply, peaking at a 7 around noon, signaling the most potent UV exposure of the day. The early afternoon maintains a respectable UV level of 6 at 1:00 PM before gradually tapering off. By mid-afternoon, it drops to 4, then swiftly declines to 1 by 4:00 PM, and finally settles at 0 by 6:00 PM, marking the day's end for UV concern. This hourly trend underscores the importance of sun safety during peak hours, especially between 10 AM and 2 PM.

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	6	high	25 min
12:00	7	high	25 min
13:00	6	high	25 min
14:00	4	moderate	30 min
15:00	2	low	45 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 Manja

The UV Index shows significant seasonal changes, with extreme levels persisting in the first four months and again in September through November. The months of January, February, March, April, September, October, November, and December all present a high risk of UV exposure, with a consistent burn time of only 10 minutes. The highest risk months—January to April and September through November—require visitors and residents to take extra precautions. As the season transitions into May and August, the UV exposure becomes very high, allowing slightly longer burn times of 15 minutes. June and July see a high UV level, enabling 25 minutes of exposure but still necessitating caution. Visitors and residents are advised to use broad-spectrum sunscreen, wear protective clothing, and seek shade during peak hours to mitigate the risk of skin damage.

Monthly Maximum UV Index for Manja, Madagascar

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

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

Manja's solar exposure compared to other cities in Madagascar. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Manja	16	16	14	11	8	7	7	9	11	13	14	14
Toamasina UVI	16	16	15	12	9	7	8	10	12	12	13	15
Fianarantsoa UVI	17	17	15	12	9	7	8	10	12	13	14	16
Mahajanga UVI	16	16	15	13	10	8	9	11	12	12	13	15
Antananarivo UVI	17	17	15	12	10	8	9	11	13	13	14	16
Antsirabe UVI	17	17	16	13	10	8	9	11	13	13	14	16