UV Index
UV Index
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Today's UV index in Hamilton, New Zealand 
will be up to 4.3, indicating a moderate level of sun exposure for the average person. Check the annual sun radiation in the city and our tips for today to make sure you're safe in the sun.
With a UV index reaching up to 4.3 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 can reach extreme levels during peak sunlight hours, particularly in summer. It's important for residents and visitors to be aware of the UV index and take appropriate measures to protect their skin.
Hamilton experiences a temperate oceanic climate, with four distinct seasons. Summer, from December to February, is warm and humid with temperatures ranging from 15-25°C. Autumn, from March to May, brings milder temperatures and changing leaf colors. Winter, from June to August, is cool and damp with temperatures ranging from 5-15°C. Spring, from September to November, is a time of renewal with temperatures gradually warming up.
Compared to its region and neighboring countries, Hamilton's climate is relatively mild. Its winter temperatures are warmer than those in nearby Australia, while its summer temperatures are cooler than those in many Pacific Islands. The city's proximity to the Tasman Sea ensures a steady supply of moisture, resulting in higher rainfall compared to many parts of Australia and the Pacific Islands.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Hamilton. It's designed to provide you with a better understanding of the yearly weather and sun exposure.