UV Index in Paraiso, Costa Rica

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Paraiso, Costa Rica, where the combination of a warm Cfb climate and high altitudes can lead to significant sun exposure risks. With UV levels peaking at a staggering 15 around noon, being aware of these levels is vital for preventing sunburn and maintaining skin health. Whether you're hiking through stunning landscapes or soaking up the vibrant local culture, knowing when and how to protect your skin will ensure you enjoy all that Paraiso has to offer without the harmful effects of UV radiation.

Hourly UV Index in Paraiso

As the day unfolds, the UV Index begins its climb, starting at a gentle 2 at 07:00. By 09:00, it reaches 9, signaling a more intense level of UV radiation. The sun fully asserts its strength by 11:00, peaking at an impressive 15. This maximum is maintained until 12:00, when the UV Index hovers at 15 before gradually tapering off in the afternoon. By 15:00, it drops to a moderate 5, and as the day cools, the index diminishes further, reaching 2 by 16:00 and dwindling to 0 by 19:00. It's a reminder to stay sun-safe during peak hours, especially between 10:00 and 14:00, when the intensity is at its highest!

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	2	low	45 min
08:00	5	moderate	30 min
09:00	9	very high	15 min
10:00	13	extreme	10 min
11:00	15	extreme	10 min
12:00	15	extreme	10 min
13:00	12	extreme	10 min
14:00	9	very high	15 min
15:00	5	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Paraiso

Throughout the year, the UV Index remains extraordinarily high, with extreme exposure categories dominating from January to November. The months of March, April, and May mark the peak, with a UV Index reaching 16, indicating the highest risk for skin damage due to sun exposure. Visitors and residents should exercise caution, especially from January to May, where the risk of sunburn occurs within just 10 minutes of exposure. As a precaution, it’s essential to use broad-spectrum sunscreen, wear protective clothing, and seek shade during midday hours. Even as we transition into the cooler months, attention to UV safety remains crucial, as November and December still present a notable risk with indices of 12 and 11, respectively. Staying informed and protected is key to enjoying outdoor activities safely year-round.

Monthly Maximum UV Index for Paraiso, Costa Rica

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

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

Paraiso's solar exposure compared to other cities in Costa Rica. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Limon UVI	12	13	14	15	14	13	13	13	13	14	11	10
Liberia UVI	11	13	14	14	14	14	14	13	13	13	11	10
Alajuela UVI	12	13	15	15	14	14	14	13	13	14	12	10
San Jose UVI	12	14	15	16	14	14	14	14	14	15	12	11
Paraiso	13	14	16	16	15	15	15	14	14	15	12	11