UV Index
UV Index
Today's UV index in Sydney, Australia 
will be up to 3.9, indicating a moderate level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-08
With a UV index reaching up to 3.9 in Sydney, 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.
Sydney's UV index can be very high, especially in summer, often reaching levels 10 or above, which means strong sun exposure. During winter, the UV index drops to moderate or low levels.
Sydney has warm summers with temperatures often in the mid-20s to low 30s Celsius. Winters are mild and cool, rarely dropping below 8 degrees Celsius. Rainfall is spread throughout the year, with slightly wetter months from March to June.
Compared to other parts of Australia, Sydney has milder winters and less extreme heat than central or northern areas. Neighboring cities like Melbourne have cooler winters and often more rain, while Brisbane is generally warmer year-round with higher humidity.
See the UV index hour by hour for Sydney, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.