UV Index
UV Index
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Today's UV index in Castries, Saint Lucia 
will be up to 9.1, indicating very high 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 of 9.1 in Castries, it's crucial to safeguard your skin from harmful UV rays. Protect yourself by minimizing sun exposure, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours.
Read more here about the climate and sun exposure in and around Castries.
The UV index in Castries, Saint Lucia, can reach high levels throughout the year. It usually stays between 8 and 10, which is considered very high (UV index 8-10), indicating a significant risk of sunburn. This means that it is crucial to take proper sun protection measures like wearing sunscreen, sunglasses, and hats when spending time outdoors to avoid overexposure to harmful UV radiation.
Castries experiences two main weather seasons: the wet season and the dry season. The wet season, which lasts from June to November, brings frequent rain showers and occasional thunderstorms. The dry season, from December to May, features less rainfall and more stable weather conditions. The average temperature throughout the year stays around 26-30 °C (78-86 °F), providing a pleasantly warm climate.
Compared to its region, Castries offers a moderate amount of sun exposure. It receives an average of 2,800 hours of sunshine per year. While it does not have extreme heat like some neighboring islands, the UV index in Castries can still pose risks. It is important for residents and visitors to stay vigilant and protect themselves from the sun's harmful rays to prevent sunburn and potential long-term damage to the skin.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Castries. It's designed to provide you with a better understanding of the yearly weather and sun exposure.