UV index today  UV Index

UV Index in Mesa, US

UV index


Cloud cover



00.0 ℃


Today's UV index in Mesa, United States United States will be up to 3.2, indicating moderate risk of harm from the sun's UV rays for the average person. Check our tips for today to make sure you're safe in the sun.


Today's tips

With a UV index reaching up to 3.2 in Mesa, stay shaded during midday when the sun is strongest; wear protective clothing, a wide-brimmed hat, UV-blocking sunglasses; apply SPF 30+ sunscreen every 2 hours, even on cloudy days; and be cautious of heightened UV on bright surfaces.

Mesa Weather

Read more here about the climate and sun exposure in and around Mesa.

UV Index in Mesa

The UV index in Mesa, United States, can be quite high, especially during the summer months. It often reaches levels of 10 or above, which is considered to be very high (31 or above in the UV index scale). This means that it is crucial to protect your skin from the harmful effects of the sun by wearing sunscreen, hats, and sunglasses, and by seeking shade whenever possible.

Weather Seasons

UV index

Mesa experiences four distinct seasons throughout the year. In the winter (December to February), temperatures can drop to an average low of around 4 °C (39 °F), while daytime temperatures reach around 18 °C (65 °F). Spring (March to May) brings mild and comfortable temperatures, with average lows around 10 °C (50 °F) and highs around 28 °C (82 °F). Summers (June to August) are hot, with temperatures soaring to an average high of about 39 °C (102 °F) during the day and around 26 °C (79 °F) at night. Fall (September to November) marks a transition period, with mild temperatures ranging from around 16 °C (60 °F) to 30 °C (86 °F).

Mesa's Climate

Compared to its region, Mesa experiences abundant sunshine throughout the year. It enjoys more than 300 days of sunshine annually, making it an ideal place for outdoor activities and events. The region, known for its desert climate, also sees lower levels of humidity, making the heat more tolerable. However, this also means that the area is prone to droughts and dry conditions, which require careful water management and conservation efforts.

Annual Sun Radiation

The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Mesa. It's designed to provide you with a better understanding of the yearly weather and sun exposure.


* This page's content about the UV index in Mesa (United States) is for educational and informational purposes only. The developers and data providers are not liable for the accuracy, reliability, or availability of the information. The information is not a substitute for professional medical advice, and the developers and data providers are not medical professionals. Seek advice from a qualified health provider for any medical concerns, and do not disregard medical advice or delay seeking it based on the information provided on this site.