nomadseason

UV Index in Siuna, Nicaragua

Last updated: June 2, 2025

In Siuna, Nicaragua, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps in preventing painful sunburns and long-term skin damage, allowing you to enjoy the outdoors safely. With its tropical climate, Siuna experiences substantial UV exposure, particularly during midday hours when the index soars above 11. By staying informed about local UV levels, you can take proactive measures to shield yourself from harmful rays and maximize your outdoor enjoyment.

Hourly UV Index in Siuna

The UV Index throughout the day showcases a dynamic and intense solar experience. Starting at 7:00 AM, it begins modestly at 2, gradually escalating to 5 by 8:00 AM. The real surge occurs by 9:00 AM, peaking at a striking 11 by 10:00 AM, and reaching its maximum of 13 during both 11:00 AM and 12:00 PM. As the afternoon unfolds, the index starts to decline, dipping to 12 at 1:00 PM and tapering off to 8 by 2:00 PM. By mid-afternoon, the UV intensity diminishes further, falling to 5 at 3:00 PM, before settling at a gentle 2 by 4:00 PM. The evening brings a welcome respite, with the UV Index reducing to 1 at 5:00 PM and finally dropping to zero by 7:00 PM, marking the end of a day characterized by significant exposure potential. Stay protected during those peak UV hours!

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
07:002low45 min
08:005moderate30 min
09:008very high15 min
10:0011extreme10 min
11:0013extreme10 min
12:0013extreme10 min
13:0012extreme10 min
14:008very high15 min
15:005moderate30 min
16:002low45 min
17:001low45 min
18:000low45 min
19:000low45 min

Monthly UV Index Trends in Siuna

Throughout the year, UV exposure levels show significant seasonal variation, with high-risk months primarily occurring from February to October, where the UV Index frequently reaches extreme levels. Notably, March, April, and May represent the peak months with a UV Index of 14, demanding swift action to protect skin from harmful exposure, with a burn time as brief as 10 minutes. Residents and visitors are advised to take necessary precautions during these months, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak sun hours. As a slight reprieve, UV levels decrease in November and December, but even then, individuals should remain vigilant as the UV Index can still reach 9-10, designating these months as still requiring careful management of sun exposure.

Monthly Maximum UV Index for Siuna, Nicaragua

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Siuna. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec10121414141313131313109
Data source: Statistical UV Index data for Siuna, 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 Siuna UV Index with Other Nicaragua Cities

The table above highlights how UV exposure in Siuna compares to other major locations across Nicaragua. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Siuna's solar exposure compared to other cities in Nicaragua. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Chinandega UVI11121414141413131313109
Siuna10121414141313131313109
Leon UVI111214141414131313131010
Managua UVI111314141413131313131010
Masaya UVI111314141414141313131010
Matagalpa UVI111315151414141414141110