Saint John's UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index11.4
- Avg Clouds37%
- Max Temp29.3 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Saint John's, Antigua and Barbuda 
will reach a high of 11.4 today. This means a extreme level of sun exposure. See our tips below to stay safe!
Last checked: 2025-08-21
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
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.
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