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UV Index in Saipan, Northern Mariana Islands

Last updated: May 3, 2025

Understanding the UV Index in Saipan, Northern Mariana Islands, is crucial for maintaining skin health and preventing sunburn. With the island's tropical climate, residents and visitors alike are exposed to varying UV levels throughout the day, peaking around noon and early afternoon—with a maximum index of 13! This extraordinary UV exposure can lead to significant skin damage if not managed properly. Thus, being aware of these levels and taking protective measures is essential to enjoy the beautiful sunny days while safeguarding your skin.

Hourly UV Index in Saipan

The UV Index for the day reveals a striking pattern, peaking dramatically between 11:00 AM and 12:00 PM at 13, emphasizing the need for sun protection during these hours. As the sun rises, the index starts low, at just 1 at 7:00 AM, gradually climbing to 3 by 8:00 AM. The most intense exposure occurs at 10:00 AM, hitting 9, before reaching its zenith at 12:00 PM. Following this peak, the levels drop to 12 at 1:00 PM and steadily decline, falling to 1 by 5:00 PM and tapering off to 0 by 7:00 PM. It’s a clear reminder of the sun’s potency during midday hours—ensuring skin protection is essential to enjoy the outdoors safely!

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
08:003moderate30 min
09:006high25 min
10:009very high15 min
11:0012extreme10 min
12:0013extreme10 min
13:0012extreme10 min
14:0010very high15 min
15:007high25 min
16:004moderate30 min
17:001low45 min
18:001low45 min
19:000low45 min

Monthly UV Index Trends in Saipan

Throughout the year, the UV Index varies significantly, with January and December experiencing a very high exposure category (UV Index 10), where the burn time is 15 minutes. The high-risk months, however, occur from February to November, where the UV Index consistently reaches levels categorized as extreme—peaking in March and April at an Index of 14 and 15, respectively. During these months, the burn time is notably low at just 10 minutes. Visitors and residents are strongly advised to take protective measures during these months, such as wearing sunscreen, protective clothing, and sunglasses, and seeking shade during peak sun hours to minimize the risk of harmful UV exposure.

Monthly Maximum UV Index for Saipan, Northern Mariana Islands

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Saipan. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec101214151314141414131110
Data source: Statistical UV Index data for Saipan, 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 Saipan UV Index with Other Northern Mariana Islands Cities

The table above highlights how UV exposure in Saipan compares to other major locations across Northern Mariana Islands. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Saipan's solar exposure compared to other cities in Northern Mariana Islands. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Saipan101214151314141414131110
San Jose Village UVI101214151314141414131110