UV Index
UV Index
Today's UV index in Hamilton, New Zealand 
will be up to 3.1, 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: 2025-05-10
With a UV index reaching up to 3.1 in Hamilton, 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.
The UV index in Hamilton, New Zealand, is generally moderate to high, especially during the summer months, often reaching levels between 6 and 11, indicating strong sun exposure during midday. Seasonal patterns in Hamilton include mild, wet winters with temperatures averaging around 8-15°C, and warm, humid summers with temperatures typically between 20-25°C, plus occasional rain throughout the year. Compared to other parts of New Zealand and neighboring countries, Hamilton has a temperate maritime climate, experiencing more rain than eastern regions but less extreme temperatures than inland areas of Australia.
See the UV index hour by hour for Hamilton, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.