UV Index in Koumac, New Caledonia

Last updated: June 2, 2025

Understanding the UV Index is essential for everyone's health in Koumac, New Caledonia, where the sun's rays can be both inviting and harmful. With the potential for high UV levels, particularly during midday when it peaks at 7, being aware of your exposure can significantly reduce the risk of sunburn and long-term skin damage. Given Koumac's tropical climate, where sunny days are the norm, knowing when to seek shade or apply sunscreen is crucial for maintaining skin health. Stay informed about the daily UV Index to protect yourself and enjoy the beautiful outdoors safely!

Hourly UV Index in Koumac

The UV Index for the day provides a clear picture of sun exposure. Starting off gently at 1 in the early hours, the intensity gradually builds, reaching a peak of 7 between 11:00 and 12:00. This is the ideal time for sun protection, as skin can burn quickly. As the afternoon progresses, the index declines, dropping to 3 by 15:00 and further down to 1 by late afternoon. After sunset, the UV Index falls to 0, indicating safe conditions. Stay sun smart, especially during the peak hours for maximum 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	7	high	25 min
12:00	7	high	25 min
13:00	6	high	25 min
14:00	5	moderate	30 min
15:00	3	moderate	30 min
16:00	1	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 Koumac

The UV Index data reveals significant seasonal fluctuations in UV radiation, with the highest levels observed during the winter and early spring months (January to March) at an alarming 16, classified as extreme, where the burn time is only 10 minutes. Notably, November and December also exhibit an extreme index of 15. April, while slightly lower at 12, still falls within the extreme category, warranting caution. As the year progresses into summer, UV levels decrease slightly, with June at 7 (high), July at 8 (very high), and August peaking again at 10 (very high). September and October mark a return to extreme levels, with indices of 12 and 13, respectively. Residents and visitors, particularly in high-risk months from January to April and again in September to November, should take precautionary measures to minimize exposure: wearing protective clothing, using broad-spectrum sunscreen, and seeking shade during peak sun hours.

Monthly Maximum UV Index for Koumac, New Caledonia

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

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

Koumac's solar exposure compared to other cities in New Caledonia. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Paita UVI	16	16	15	12	8	6	7	10	11	13	14	16
Dumbea UVI	16	16	15	12	8	6	7	10	11	13	14	16
Mont-Dore UVI	16	16	15	12	8	6	7	10	11	13	14	16
Noumea UVI	16	16	15	12	8	6	7	10	11	13	14	16
We UVI	15	16	16	12	9	7	8	10	12	13	14	15
Koumac	16	16	15	12	9	7	8	10	12	13	15	15