UV Index in Antananarivo, Madagascar

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Antananarivo, Madagascar, where the unique climate can lead to varying levels of ultraviolet radiation throughout the day. With UV levels peaking at 8 during midday, awareness is essential for preventing sunburn and maintaining skin health. In a city with a temperate highland climate, typical risks include overexposure during the sunniest hours, especially from 10 AM to 2 PM. By staying informed about UV levels, you can enjoy the beautiful outdoors while protecting yourself from potential harm.

Hourly UV Index in Antananarivo

As the sun rises, the UV Index begins its ascent, starting at a gentle 1 by 7:00 AM. By 8:00 AM, it nudges up to 2, signaling a mild increase in UV exposure. The intensity heats up quickly, reaching a moderate 4 by 9:00 AM, before hitting its peak of 8 from 11:00 AM to 12:00 PM. This is the prime time for sun safety awareness! After noon, the UV Index gradually declines; by 3:00 PM, it recedes to 3, and as the day wanes, it drops significantly to 1 by 4:00 PM. By evening, UV levels have diminished, reaching 0 by 6:00 PM, offering a reprieve from the sun’s rays.

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.
TimeUVICategoryTime to Burn
07:001low45 min
08:002low45 min
09:004moderate30 min
10:006high25 min
11:008very high15 min
12:008very high15 min
13:007high25 min
14:005moderate30 min
15:003moderate30 min
16:001low45 min
17:001low45 min
18:000low45 min
19:000low45 min

Monthly UV Index Trends in Antananarivo

The UV Index exhibits significant seasonal variation, peaking in the early months of the year with values reaching up to 17 in both January and February, classified as extreme exposure, where a burn can occur in just 10 minutes. As the year progresses into March and April, the index remains high, at 15 and 12 respectively, still warranting extreme caution. The summer months, particularly May through July, present a slight reduction, but the risk remains considerable with values ranging from 8 to 10, where burn times extend to 15 minutes. The threat spikes again from August onwards, as the index climbs back to extreme levels, continuing through November. Visitors and residents are strongly advised to limit sun exposure, especially during high-risk months (January to April and August to November) and to take protective measures such as wearing sunscreen, protective clothing, and seeking shade, particularly during peak sun hours.

Monthly Maximum UV Index for Antananarivo, Madagascar

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Antananarivo. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec1717151210891113141416
Data source: Statistical UV Index data for Antananarivo, 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 Antananarivo UV Index with Other Madagascar Cities

The table above highlights how UV exposure in Antananarivo 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.
Antananarivo's solar exposure compared to other cities in Madagascar. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Toamasina UVI161615129781012121315
Fianarantsoa UVI171715129781012131416
Mahajanga UVI1616151310891112121315
Antananarivo1717151210891113131416
Antsirabe UVI1717161310891113131416