UV Index
UV Index
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Today's UV index in Irvine, United States 
will be up to 3, 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.
With a UV index reaching up to 3 in Irvine, 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.
Read more here about the climate and sun exposure in and around Irvine.
In Irvine, the UV index is important to consider when planning outdoor activities. The city experiences high levels of ultraviolet radiation, especially during the summer months. The UV index in Irvine can reach values of 10 or higher, indicating very high risk of sunburn. It is crucial to protect your skin by applying sunscreen with a high SPF, wearing protective clothing, and seeking shade during peak hours.
Irvine enjoys a Mediterranean climate, characterized by mild, wet winters and hot, dry summers. Winter temperatures typically range from 10-20 °C (50-68 °F), while summer temperatures can soar to 27-33 °C (80-91 °F). Spring and fall are pleasant with temperatures around 17-23 °C (63-73 °F). Although rain is scarce, the winter months receive the majority of the annual precipitation, while summers are practically rain-free.
Compared to its region, Irvine enjoys a sun-drenched climate. Its location in Southern California allows for ample sun exposure throughout the year. While the city experiences a significant number of sunny days, it is also exposed to the occasional marine layer, or "June Gloom," which can result in overcast skies during the mornings. Despite this, Irvine is known for its generally sunny weather, making it an appealing destination for those seeking a warm and vibrant environment.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Irvine. It's designed to provide you with a better understanding of the yearly weather and sun exposure.