UV Index
UV Index
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Today's UV index in Christchurch, New Zealand 
will be up to 4.7, indicating moderate 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.
With a UV index reaching up to 4.7 in Christchurch, 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.
Read more here about the climate and sun exposure in and around Christchurch.
The UV index in Christchurch, New Zealand ranges from low to extreme. In summer, when the sun is strong, the UV index can reach very high levels, ranging from 9 to 12 (equivalent to 8-10 on the UV index scale used in some countries). This means that it is crucial to protect your skin by using sunscreen, wearing protective clothing, and seeking shade during the peak hours of sunlight.
Christchurch experiences four distinct seasons throughout the year. Summer (December-February) is generally warm with average temperatures ranging from 20-25 °C (68-77 °F). Autumn (March-May) brings cooler temperatures ranging from 12-18 °C (54-64 °F) and colorful foliage. Winter (June-August) is usually chilly with temperatures averaging 2-12 °C (36-54 °F). Spring (September-November) sees temperatures rising again to around 12-18 °C (54-64 °F), and nature comes alive with blooming flowers.
Compared to other cities in the region, Christchurch gets a moderate amount of sun exposure. It receives an average of 2,063 hours of sunshine annually, which is higher than cities like Wellington but lower than Auckland. Additionally, due to its southern latitude, Christchurch experiences longer daylight hours during the summer months compared to cities further north, such as Auckland. It is important to stay aware of the UV index and practice sun safety measures throughout the year.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Christchurch. It's designed to provide you with a better understanding of the yearly weather and sun exposure.