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UV Index in Mesa, Maricopa, Arizona

Tuesday

21/07/2026

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Current UV Index:
9.06
Very high risk of harm
A UV Index of 8 to 10 means there is a very high risk of harm from unprotected sun exposure. Take extra precautions as unprotected skin and eyes are vulnerable and can burn quickly.
UV Index Scale
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0 - 2
Low risk of harm
A UV index of 0 to 2 means that the danger from the Sun's UV rays to the average person is low.
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3 - 5
Medium risk of harm
A UV index of 3 to 5 means a moderate risk of harm from unprotected sun exposure.
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6 - 7
High risk of harm
A UV Index of 6 to 7 means a high risk of harm from unprotected sun exposure. Skin and eye protection is essential.
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8 - 10
Very high risk of harm
A UV Index of 8 to 10 means there is a very high risk of harm from unprotected sun exposure. Take extra precautions as unprotected skin and eyes are vulnerable and can burn quickly.
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11+
Risk of dangerous harm
A UV Index of 11 or higher means an extremely high risk of harm from unprotected sun exposure. Take every precaution as unprotected skin and eyes can burn in minutes.

Hourly UV Index Forecast

Wear sunglasses on sunny days. In winter, reflection can double the intensity of UV rays.
If you burn easily, cover up and use sunscreen.
1-2
Low
3-5
Medium
6-7
High
8-10
Very high
11+
Extremely high

Daily UV Index Forecast

21/07/2026
moderate rain 23o / 37o
10.45
Risk of dangerous harm
22/07/2026
few clouds 27o / 41o
10.86
Risk of dangerous harm
23/07/2026
clear sky 32o / 43o
11.41
Risk of dangerous harm
24/07/2026
clear sky 36o / 45o
11.73
Risk of dangerous harm
25/07/2026
clear sky 37o / 45o
11.83
Risk of dangerous harm
26/07/2026
overcast clouds 34o / 41o
12
Risk of dangerous harm
27/07/2026
light rain 33o / 40o
12
Risk of dangerous harm
28/07/2026
light rain 33o / 41o
12
Risk of dangerous harm

21/07/2026

36o
cloudy
Cloudy, overcast
23oC / 37oC | Real feel 39oC
0% rain | 0 mm
Humidity 40%
Vision 10 km
Wind Speed 6.083 km/h
UV Index 10.45
Sunrise / Sunset 05:32 / 19:34

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