Port St. John, FL: Current UV Index and Hourly Forecast

On this page, you can find the current UV Index and hourly 5 day UV Index forecast for Port St. John, Brevard County, Florida (FL). The Ultraviolet Index forecast, which measures the radiation from the sun that reaches the Earth's surface is updated daily.

Current UV Index
9:05 PM EST

0Risk: Low

(Updated 5 minutes ago.)

As of 9:05 PM EST, the UV Index in Port St. John, FL is 0 (Low).
The UV Index is expected to rise to 0.2 between 8:00 AM - 9:00 AM EST tomorrow.

Hourly UV Index Forecast for Tomorrow
Friday, December 27, 2024

12 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PMEastern Standard Time (EST)0123456789101112

UV Index Data sourced from the NOAA.


As of 9:05 PM EST on Thursday, December 26, 2024, the UV index in Port St. John, FL is at a low level of 0. At this time of the night, the sun has already set and there is no exposure to UV radiation. The UV Index will remain at 0 through the early morning hours until around 8:00 AM tomorrow.

As the day progresses tomorrow (December 27, 2024), the UV Index will rise to 0.2 between 8:00 AM - 9:00 AM, still considered low. The UV Index in Port St. John will continue to rise through the morning, reaching a moderate level of 3.6 between 11:00 AM - 12:00 PM. The UV Index will peak between 12:00 PM and 1:00 PM with a moderate reading of 4.1.

For the protection of your health against UV exposure, we highly recommended wearing sunglasses, generously applying broad-spectrum SPF 15+ strength sunscreen on exposed skin, covering the body with sun-protective clothing and a wide-brim hat, and reducing the time spent outdoors in the sun during peak hours.

After reaching its peak for the day, the UV Index will gradually decline through the afternoon and evening. It will return to moderate levels at 1:00 PM and then drop to low levels again from 3:00 PM onwards. As the day transitions into the night, the UV Index will drop back down to 0 at 6:00 PM.


Summary of Hourly UV Index Forecast for Today and Tomorrow in Port St. John, FL

Today

Time RangeUV IndexRisk
8:00 AM - 11:00 AM (EST)0.2 - 2.1
Low
11:00 AM - 2:00 PM3.3 - 4.1
Moderate
2:00 PM - 12:00 AM0 - 2.1
Low

Tomorrow

Time RangeUV IndexRisk
12:00 AM - 11:00 AM (EST)0 - 2.2
Low
11:00 AM - 3:00 PM3.3 - 4.1
Moderate
3:00 PM - 12:00 AM0 - 1.7
Low

Detailed Hourly Port St. John UV Index Forecast for the next 5 days

Download CSV (Excel) ↓
TimeUV IndexRisk
9:00 PM - 10:00 PM (Now, EST)0
Low
10:00 PM - 11:00 PM 0
Low
11:00 PM - 12:00 AM 0
Low

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