UV Index in San Fernando, Trinidad and Tobago

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of San Fernando, Trinidad and Tobago, where the sun can be both a source of joy and a potential hazard. Awareness of UV levels is essential for preventing sunburn and maintaining overall skin health. With the tropical climate typical of San Fernando, the UV Index often peaks dramatically, especially during midday, with Values reaching as high as 13—indicating extreme risk. Being informed about these levels empowers you to enjoy the vibrant outdoor lifestyle while protecting yourself from harmful UV radiation.

Hourly UV Index in San Fernando

The UV Index paints a vivid picture of the sun's intensity throughout the day, peaking at a dangerous level of 13 between noon and 1 PM. Early risers will find the morning sun relatively mild, with a maximum of 1 at 7 AM and a gradual increase to 3 by 8 AM. However, as the clock approaches 10 AM, sun-seekers should take heed as the index escalates to 9. By 11 AM, it soars to a striking 12, reaching its zenith just after noon. The afternoon sees a slight decline, dropping to 10 by 2 PM before gracefully descending through the 6 mark at 3 PM. As the day winds down, the index plummets back to 1 by 5 PM, culminating in a gentle close at 0 by 7 PM. It’s wise to embrace sun safety measures during those peak 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.
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	13	extreme	10 min
13:00	13	extreme	10 min
14:00	10	very high	15 min
15:00	6	high	25 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 San Fernando

The UV Index exhibits extreme levels throughout most of the year, with particularly high readings from March to September, where it peaks at 14. January through February also show a UV Index of 12, classifying them as high-risk months for sun exposure. Visitors and residents alike should take extra precautions during these months, as the burn time remains consistently short at just 10 minutes for all but December, which has a slightly lower UV Index of 10 and very high exposure classification with a burn time of 15 minutes. It is advisable to use sunscreen, wear protective clothing, and seek shade to mitigate risks associated with prolonged sun exposure during these critical months.

Monthly Maximum UV Index for San Fernando, Trinidad and Tobago

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in San Fernando. 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 San Fernando, 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 San Fernando UV Index with Other Trinidad and Tobago Cities

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

San Fernando's solar exposure compared to other cities in Trinidad and Tobago. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
San Fernando	12	12	14	14	14	13	13	13	14	14	11	10
Mon Repos UVI	12	12	14	14	14	13	13	13	14	14	11	10
Chaguanas UVI	12	12	14	14	14	13	13	13	14	14	11	10
Port of Spain UVI	11	12	14	14	14	13	13	13	14	14	11	10
Rio Claro UVI	12	12	14	14	14	13	13	13	14	14	11	10