UV Index in Saipan, Northern Mariana Islands

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Saipan, Northern Mariana Islands, where the tropical climate leads to intense sun exposure. These UV levels significantly impact skin health and increase the risk of sunburn, making awareness essential for enjoying the outdoors safely. With peak UV Index values soaring to 14 during midday, recognizing these fluctuations helps in planning activities and employing sun protection strategies. Given Saipan's warm, tropical climate, it’s important to stay informed about UV risks throughout the day to ensure a safe and enjoyable experience in this beautiful paradise.

Hourly UV Index in Saipan

As the sun rises, the UV Index begins its ascent, starting from a gentle 1 at 07:00. By 08:00, it climbs to 3, signaling the need for increased sun protection. The intensity peaks dramatically at 12:00 with a scorching 14, marking the most hazardous sun exposure period of the day. Just before noon, at 11:00, the UV Index hits 12, a warning to stay in the shade. By 14:00, it begins its descent, dropping to 11 and continuing down to a mild 4 by 16:00. The evening brings relief as the index falls to 0 by 19:00, allowing for a safe outdoor experience as the sun sets. Stay aware and protect your skin during those peak hours to enjoy your day 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.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	12	extreme	10 min
12:00	14	extreme	10 min
13:00	13	extreme	10 min
14:00	11	extreme	10 min
15:00	7	high	25 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 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.

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.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Saipan	10	12	14	15	13	14	14	14	14	13	11	10
San Jose Village UVI	10	12	14	15	13	14	14	14	14	13	11	10