UV Index
UV Index
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Today's UV index in Anchorage, United States 
will be up to 0.1, 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 Anchorage, reaching up to 0.1. 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 Anchorage.
In Anchorage, the UV index ranges from low to moderate throughout the year, with occasional high levels during the summer months. It is important to protect your skin by wearing sunscreen, hats, and sunglasses, even on cloudy days. Overexposure to the sun can lead to sunburns and increase the risk of skin damage, so take precautions to avoid prolonged sun exposure.
Anchorage experiences four distinct seasons: spring, summer, autumn, and winter. Spring brings milder temperatures, while summer sees average highs around 18-21 °C (65-70 °F), making it the warmest season. Autumn brings cooler temperatures, with average highs between 9-14 °C (48-58 °F). Winter is the coldest season, with temperatures ranging from -9 to -5 °C (15-23 °F), and snowfall is common.
Compared to other regions, Anchorage receives fewer hours of daylight during the winter months due to its high latitude. Conversely, during summer, there are exceptionally long daylight hours, known as the Midnight Sun phenomenon. Anchorage's location in the Northern Hemisphere means it experiences extreme variations in daylight hours throughout the year, making it a unique place to observe the effects of sun exposure on weather patterns.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Anchorage. It's designed to provide you with a better understanding of the yearly weather and sun exposure.