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Saint John's UV Index Today

Day Summary

The UV index in Saint John's, Antigua and Barbuda Flag of Antigua and Barbuda will reach a high of 12.1 today. This means a extreme level of sun exposure. See our tips below to stay safe!

Last checked: 2025-07-31

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.

Saint John's's UV Index

The UV index in Saint John's, Antigua and Barbuda, is generally high throughout the year, often ranging from 7 to 12, meaning strong sun exposure is common. The highest UV levels occur during midday hours.

Weather Seasons

UV index

Saint John's experiences a tropical climate with a wet season from June to November, bringing more rain and humidity, and a dry season from December to May, which is sunnier and less humid. Temperatures remain warm year-round.

Saint John's's Climate

Compared to nearby Caribbean islands, Saint John's has similar warm temperatures and seasonal rainfall patterns but tends to receive slightly less rain than some eastern Caribbean nations like Dominica. It is sunnier and warmer than the more northern islands like Puerto Rico.

Hourly UV Index Trend

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

Disclaimer

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