UV Index in Antsiranana, Madagascar

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Antsiranana, Madagascar, where the tropical climate brings both beautiful sunny days and significant sun exposure risks. With UV levels peaking at 10 around midday, awareness of these indices can be vital in preventing sunburn and promoting skin health. As the sun's rays can lead to harmful effects, knowing when to seek shade or apply sunscreen is essential for enjoying the outdoors safely in this scenic region.

Hourly UV Index in Antsiranana

The UV Index today began its ascent at a mild level of 1 at 7:00 AM, but soon picked up momentum. By 10:00 AM, it soared to 8, peaking at a significant 10 from 11:00 AM to 12:00 PM, signaling a time for sun protection. As the afternoon rolled in, the intensity started to wane, dropping to 9 at 1:00 PM and then descending to 6 by 2:00 PM. The sun's rays softened further, concluding the day with a gentle 3 at 3:00 PM and returning to a low 1 by 5:00 PM. Finally, the UV Index waned to 0 by 6:00 PM, marking the end of a day defined by fluctuating sunshine intensity.

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	5	moderate	30 min
10:00	8	very high	15 min
11:00	10	very high	15 min
12:00	10	very high	15 min
13:00	9	very high	15 min
14:00	6	high	25 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 Antsiranana

Throughout the year, UV Index levels exhibit significant variability, with extreme ratings observed from January to May, where the UV Index consistently reaches 16 and burn time is as short as 10 minutes. The high-risk months are marked by January, February, March, and April, requiring both residents and visitors to adopt stringent sun protection measures. May also shows a notable UV Index of 11. As summer approaches, the UV Index decreases slightly but remains classified as very high in June and July with a burn time of 15 minutes. Come August, the index spikes back to 12 amidst the extreme exposure category. As the year winds down, September through November return to 14, again necessitating vigilance, and December closes the year with a 15. It's crucial for everyone to wear sunscreen, protective clothing, and seek shade during peak hours, especially in these high-risk months.

Monthly Maximum UV Index for Antsiranana, Madagascar

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

The table above highlights how UV exposure in Antsiranana 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.

Antsiranana'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
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
Antsiranana	16	16	16	14	11	9	10	12	14	14	14	15