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Castries UV Index Today

Day Summary

The UV index in Castries, Saint Lucia Flag of Saint Lucia will reach a high of 11.8 today. This means a extreme level of sun exposure. See our tips below to stay safe!

Last checked: 2025-09-02

Hourly Forecast Chart

Today's Safety Tips

Extreme danger! Avoid being in the sun, especially during midday. If you go out, cover up with clothing, a hat, and sunglasses, and use plenty of sunscreen.

Castries's UV Index

The UV index in Castries, Saint Lucia, is generally high throughout the year, often ranging from moderate to very high levels, especially during the midday hours when the sun is strongest.

Weather Seasons

UV index

Castries has a tropical climate with a wet season from June to November and a dry season from December to May. Temperatures stay warm year-round, usually between 24°C to 31°C (75°F to 88°F).

Castries's Climate

Compared to nearby Caribbean islands, Castries experiences similar warm temperatures but tends to be wetter during the rainy season than some drier islands like Barbados. It is slightly cooler and rainier than islands closer to the equator, like Trinidad and Tobago.

Hourly UV Index Trend

See the UV index hour by hour for Castries. When the level is high, it's smart to find some shade.

Disclaimer

* The information on this page about the UV index in Castries is for educational purposes only. It is not a substitute for professional medical advice. Always consult a doctor for any health concerns.