|Local Time||We Jul 07||Th Jul 08|
What city has the highest UV index?
On Dec. 29, 2003, a world-record UV index of 43.3 was detected at Bolivia’s Licancabur volcano. The UV index is used to forecast the strength of the sun’s ultraviolet rays.
Is UV Index 12 high?
A UV Index reading of 11 or more means extreme risk of harm from unprotected sun exposure. Take all precautions because unprotected skin and eyes can burn in minutes. Try to avoid sun exposure between 10 a.m. and 4 p.m.
What UV index can you tan in?
TABLE 1. MINUTES OF SUNLIGHT EXPOSURE FOR SUFFICIENT VITAMIN D
|SKIN REACTION TO SUNLIGHT||UV Index|
|Skin type III: Occasionally burn, slowly tan||20-30 min.||15-20 min.|
|Skin type IV: Rarely burn, rapidly tan||30-40 min.||20-30 min.|
|Skin type V & VI: Very rarely burn, always dark||40-60 min.||30-40 min.|
Is a 5 UV Index bad?
A UV Index of 3-5 (Medium) means there is a low risk of harm from unprotected sun exposure. Fair skinned people may burn in less than 20 minutes. … A UV Index of 6-7 (High) means there is a moderate risk of harm from unprotected sun exposure. Fair skinned people may burn in less than 20 minutes.
Where is UV radiation the strongest on earth?
Peak UV should occur within the tropics (high sun, low ozone), at a high altitude site, in the Southern Hemisphere. Near the Tropic of Capricorn, overhead Sun occurs during the period when the Earth- Sun separation is a minimum.
What country has the strongest sun?
Australia – where the Sun hits the hardest
- Look at the bright red spots in the Pacific, mid-Atlantic and Australia where irradiance (the power of solar radiation) is highest.
- Australia receives much more solar radiation than California or even the Mediterranean famed for its sunny summers and beautiful beaches.
What is the highest UV index ever recorded?
On December 29, 2003, a world-record ground-level UV index of 43.3 was detected at Bolivia’s Licancabur volcano, though other scientists dispute readings higher than 26.
What does UV index of 1 mean?
The UV Index was previously reported on a scale of 0 to 10+, with 0 representing “Minimal” and 10+ representing “Very High.” As of May 2004, EPA and NWS will report the Global Solar UV Index using a scale of 1 (or “Low”) to 11 and higher (or “Extreme”).
What level of UV Index is safe?
The World Health Organization’s Global Solar UV Index measures UV levels on a scale from 0 (Low) to 11+ (Extreme). Sun protection is recommended when UV levels are 3 (Moderate) or higher.
Can you tan in UV index 3?
A UV Index reading between 3 and 5 means there is a moderate risk of sunburn for the average person. At this level it is suggested to seek shade between 10AM and 4PM when the sun’s rays are its strongest. … The time to burn can vary by skin type, but at a moderate UV level it is approximately 30 to 45 minutes.
Can you tan 70 degree weather?
The truth is that the air temperature has absolutely no effect on whether a person’s skin tans. In fact, it’s possible to get a tan even if the air temperature is extremely cold. … The only heat that really matters in the tanning process is the heat from the sun.
Can you tan when it’s cloudy?
Yes, tanning through clouds is possible. … It does not matter how cloudy, hazy, or even rainy the day is there is still a chance of getting a tan, and even worse, a burn. Thick grey or black clouds will absorb some of the rays and not allow as much UV light through, but some will still get through and into your skin.
What is the safest time to be in the sun?
Take these steps to stay sun-safe:
- Seek shade: Limit your direct exposure to the sun, especially between 10 a.m. and 4 p.m., when UV rays are strongest.
- Cover up: When you are out, wear clothing and a wide-brimmed hat to protect as much skin as possible.
Is UV light bad for you?
Exposure to UV rays can cause premature aging of the skin and signs of sun damage such as wrinkles, leathery skin, liver spots, actinic keratosis, and solar elastosis. UV rays can also cause eye problems. They can cause the cornea (on the front of the eye) to become inflamed or burned.
How is UV calculated?
A computer model uses the ozone forecast and the incident angle of sunlight at each point to calculate the strength of UV radiation at ground level. … Sunlight angle is determined by latitude, day of year, and time of day (solar noon).