UV Index
UV Index
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Today's UV index in Oakland, United States 
will be up to 2.2, indicating low 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, the UV index suggests low sun danger (0-2) in Oakland, reaching up to 2.2. Remember sunglasses and SPF 30+ on sunny days, and be cautious around reflective surfaces like sand, water, and snow for increased UV exposure.
Read more here about the climate and sun exposure in and around Oakland.
The UV index in Oakland reaches high levels during the summer months, often exceeding 8 (very high) on a scale of 0 to 11. It is important to take precautions by using sunscreen, wearing protective clothing, and seeking shade to avoid harmful effects of the sun's ultraviolet radiation.
Oakland experiences a Mediterranean climate with distinct seasons. Summers are warm and dry, with average temperatures around 25-30 °C (77-86 °F). Winters, on the other hand, tend to be cooler and wetter, with temperatures ranging from 10-15 °C (50-59 °F). Spring and fall bring transitional weather, with mild temperatures and occasional rain showers.
Compared to its region, Oakland receives moderate sun exposure. Situated in the San Francisco Bay Area, the city benefits from a cooler climate influenced by the nearby Pacific Ocean. This results in cooler summers compared to inland areas, but also more foggy and overcast days. Despite the occasional marine layer, residents should remain cautious about sun protection, as UV rays can still penetrate through clouds and cause damage to the skin.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Oakland. It's designed to provide you with a better understanding of the yearly weather and sun exposure.