UV Index in Apia, Samoa

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Apia, Samoa, where the tropical climate and high sun exposure can pose significant risks to skin health. With high UV levels peaking at 9 around midday, awareness of these readings can help prevent sunburn and long-term skin damage. In Apia's humid, tropical environment, everyday activities can lead to increased UV exposure, making it essential to stay informed and take appropriate sun protection measures. Whether heading to the beach or exploring the vibrant culture, knowing the UV Index can help ensure a safe and enjoyable experience in this beautiful Pacific paradise.

Hourly UV Index in Apia

As the day unfolds, the UV Index steadily climbs, presenting a dynamic shift from the early morning hours. Starting at a modest 1 at 07:00 and 08:00, the index makes a notable leap to 3 by 09:00. The sun reaches its zenith around 12:00, peaking at an intense 9, where sun protection becomes essential. The afternoon hours show a slight retreat, descending to 5 by 15:00, before tapering off in the late evening. As daylight wanes, the UV Index drops back to 1 by 17:00, eventually reaching 0 just after sunset. This hourly data underscores the importance of being sun-smart during the peak midday hours for optimal skin protection.

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	1	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	8	very high	15 min
12:00	9	very high	15 min
13:00	9	very high	15 min
14:00	8	very high	15 min
15:00	5	moderate	30 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Apia

The UV Index varies significantly throughout the year, peaking during the first half with extreme levels from January to April and maintaining high levels in August and September. Notably, the high-risk months include January through April and August through October, where UV exposure categories consistently indicate extreme risk. Residents and visitors should exercise caution during these months, limiting sun exposure to less than 10 minutes, especially during the peak hours of sunlight. It is advisable to wear protective clothing, apply broad-spectrum sunscreen, and seek shade to minimize the risk of harmful UV damage.

Monthly Maximum UV Index for Apia, Samoa

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

The table above highlights how UV exposure in Apia compares to other major locations across Samoa. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Apia's solar exposure compared to other cities in Samoa. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Apia	16	16	16	13	11	9	9	12	14	15	15	15
Siusega UVI	16	16	16	13	11	9	9	12	14	15	15	15
Faleula UVI	16	16	16	13	11	9	9	12	14	15	15	15
Mulifanua UVI	16	16	16	13	11	9	10	12	14	15	15	15
Asau UVI	16	16	16	13	11	9	10	12	14	15	15	15