UV Index in Cot, Costa Rica

Last updated: May 3, 2025

Understanding the UV Index in Cot, Costa Rica is crucial for residents and visitors alike, as it serves as a vital indicator of ultraviolet radiation levels and their potential impact on skin health. In this picturesque region, where the climate is characterized as Cfb (temperate with mild summers), being aware of UV levels can help prevent sunburn and long-term skin damage. With peak UV Index values reaching a staggering 14 around midday, it's essential to take proactive measures to protect yourself during those sun-soaked hours. Whether you're exploring lush landscapes or enjoying local attractions, a little knowledge about UV exposure can go a long way in ensuring your safety and well-being under the Costa Rican sun.

Hourly UV Index in Cot

The UV Index paints a vivid picture of the day’s sun intensity, peaking at 14 around 11:00 AM and 12:00 PM. As the morning unfolds, the index climbs steadily from a modest 2 at 07:00 AM to an impressive 12 by 10:00 AM, signaling a strong need for sun protection. The afternoon sees a gradual decline, dropping to 4 by 03:00 PM, and further tapering off to 0 by 07:00 PM. This data suggests that the sun is at its most potent during the late morning hours, making it crucial for outdoor adventurers to safeguard their skin during that peak time! Remember, staying sun-safe is key as the UV exposure evolves throughout the day.

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	12	extreme	10 min
11:00	14	extreme	10 min
12:00	14	extreme	10 min
13:00	12	extreme	10 min
14:00	8	very high	15 min
15:00	4	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 Cot

The UV Index experiences monthly variations, but consistently remains in the extreme exposure category from January through November, with relatively lower levels in December. The highest UV levels occur between March and May, peaking at an index of 15, indicating a critical burn time of just 10 minutes. Given these figures, the high-risk months are particularly from March to May, where heightened sun exposure can lead to severe skin damage in a short period. Visitors and residents are strongly advised to take precautions during these months, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade, especially during peak sun hours. Even in December, with a UV index of 10, caution is necessary as the burn time is still only 15 minutes.

Monthly Maximum UV Index for Cot, Costa Rica

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

The table above highlights how UV exposure in Cot 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.

Cot'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
Cot	12	13	15	15	14	14	14	14	14	14	12	10
San Jose UVI	12	14	15	16	14	14	14	14	14	15	12	11
Paraiso UVI	13	14	16	16	15	15	15	14	14	15	12	11