What is Saint Denis UV index Scale today?
Consult Saint Denis UV index today to determine whether the sun exposure is safe or if precautions should be taken.
Saint Denis Current UV Index
4.1232
UV Index Datetime
2026-06-10 10:06:10
Saint Denis Max UV Index
6.1315
Max UV Index Datetime
2026-06-10 08:18:58
City
Saint Denis
Country
Reunion
Latitude
-20.8789
Longitude
55.4481
Today's max Saint Denis UV index is high, reaching 6.1315 around 2026-06-10 08:18:58. Avoid outdoor activities during peak sun hours and wear protective clothing, sunscreen, and a hat for safety.
Current Saint Denis Ultra Violet index is moderate, scoring 4.1232. Protect your skin during midday hours; wearing a hat and applying sunscreen is advisable.
Saint Denis Real-Time UV Index Forecast Chart (Hourly Saint Denis UV Index Chart)
Explore Saint Denis UV Index Forecast Chart for next hours to stay informed about the varying levels of ultraviolet radiation index throughout the day
Safe Exposure Time Calculation in (Time to Burn Chart)
The most commonly used scheme to classify a person’s skin type by their response to sun exposure in terms of the degree of burning and tanning was developed by Thomas B. Fitzpatrick, MD, PhD. As a meter of fact even the skin color of Emoji characters based on the Fitzpatrick scale.
| Skin Type | Color | Typical Features | Tanning Ability | Time to Burn (minutes) |
|---|---|---|---|---|
| I | Red or blond hair; light-colored eyes; freckles likely | Always burns, does not tan | 40.42 | |
| II | Light eyes; light hair | Burns easily, tans poorly | 48.51 | |
| III | Any eye or hair color (very common skin type) | Tans after initial burn | 64.67 | |
| IV | Dark brown hair; medium to heavy pigmentation | Burns minimally, tans easily | 80.84 | |
| V | Dark hair; rarely sun sensitive | Rarely burns, tans darkly easily | 129.35 | |
| VI | N/A | Never burns, always tans darkly | 242.53 |
Ultraviolet Radiation Reflection from Surfaces
Highly reflective surfaces can increase surrounding levels of solar UV including concrete, snow, glass, water and polished metals (see source).
Reflected UV Levels
| Material | Reflected Solar UV Rays (%) | Effective UV Index | UV Color |
|---|---|---|---|
| New black roadway (Asphalt) | 4.1% | 4.29 | |
| Old grey roadway (Asphalt) | 8.9% | 4.49 | |
| Footpath (Concrete) | 10.1% | 4.54 | |
| Grasslands (Grass) | 1.2% | 4.17 | |
| Lawn (Grass) | 3.5% | 4.27 | |
| Fiberglass boat deck | 9.1% | 4.5 | |
| White house paint | 22% | 5.03 | |
| Wet beach sand | 7.1% | 4.42 | |
| Dry beach sand | 16.5% | 4.8 | |
| Clay/humus (Soil) | 5% | 4.33 | |
| Open water | 3.3% | 4.26 | |
| Open ocean | 8% | 4.45 | |
| Sea surf/white foam | 27.5% | 5.26 | |
| Snow old/new | 69% | 6.97 | |
| Wood boat deck | 6.6% | 4.4 |
Required Sunlight Exposure for Vitamin D in Saint Denis
Vitamin D is a hormone that controls calcium levels in the blood. It is needed to develop and maintain healthy bones, muscles and teeth and is also important for general health. The human body can get vitamin D in two ways: diet or sun exposure.
Minutes for sunlight exposure for sufficient Vitamin D intake (see source).
| Skin Type | Exposure Time (Saint Denis Current UV Level: Moderate) |
|---|---|
| I | 10-15m |
| II | 15-20m |
| III | 20-30m |
| IV | 30-40m |
| V | 40-60m |
| VI | 60-80m |
Saint Denis Historical UV Index Trends Over the Past Year (Monthly Saint Denis UV Index Chart)
This chart presents a detailed view of the UV rating index fluctuations throughout the past year, enabling you to identify the months with lower UV levels. By observing the monthly UV trends, you can determine the safer periods for outdoor activities with reduced risk of harmful UV exposure. It's a practical tool for planning outdoor ventures while prioritizing skin health and safety.
Downlaod Saint Denis historical UV index chart PDF of 2023
Downlaod Saint Denis historical UV index chart PDF of 2022
Downlaod Saint Denis historical UV index chart PDF of 2021
Frequently Asked Questions About Saint Denis UV Index
Find here the most frequent questions while enriching your knowledge.
The maximum UV Index in Saint Denis was 15.2317, typically reaches its peak during the Fall months. The UV Index measures the strength of sunburn-producing ultraviolet radiation. In Saint Denis, the highest UV Index can often reach levels considered "very high" or "extreme," which usually means a UV Index of 8 or more. This high index calls for extra precautions, like using sunscreen, wearing protective clothing, and avoiding prolonged sun exposure during midday hours.
In Saint Denis, the highest average UV Index is usually recorded in the month of December with the uv index of 12.944166666667. During this time, the combination of longer daylight hours and the sun's higher position in the sky contributes to stronger UV radiation. Residents and visitors should be particularly vigilant about sun protection during this month, as the UV rays are at their most intense, increasing the risk of sunburn and skin damage.
