UV Index for Marathon, FL

Current Marathon UV Index

0 (Low)

Last Updated 34 minutes ago

Hourly Marathon UV Index

The hourly Marathon, FL UV Index forecast for Saturday, February 21st, 2026.

5 Day Hourly Marathon UV Index Forecast

Last Updated 14 hours ago

The UV index forecast for the next five days in Marathon, FL has no days reaching the extreme level and 3 days reaching the high or very high levels. The peak UV intensity in Marathon over the next five days will be 8.6 on Sunday, February 22nd at 12:00 pm.

The UV index forecast for Saturday, February 21st in Marathon, FL is below.

Time UV Index Risk
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.4
Low
9am 1
Low
10am 3.9
Moderate
11am 6.9
High
12pm 8.5
Very High
1pm 8.4
Very High
2pm 6.8
High
3pm 4.3
Moderate
4pm 2
Low
5pm 0.6
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, February 22nd in Marathon, FL is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.7
Low
9am 2.4
Low
10am 4.8
Moderate
11am 7.2
High
12pm 8.6
Very High
1pm 8.5
Very High
2pm 6.9
High
3pm 4.4
Moderate
4pm 2.1
Low
5pm 0.6
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, February 23rd in Marathon, FL is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low
8am 0.7
Low
9am 2.2
Low
10am 4.4
Moderate
11am 6.6
High
12pm 7.8
High
1pm 7.6
High
2pm 6.2
High
3pm 4
Moderate
4pm 1.9
Low
5pm 0.5
Low
6pm 0
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, February 24th in Marathon, FL is below.

Time UV Index Risk
12am 0
Low
1am 0
Low
2am 0
Low
3am 0
Low
4am 0
Low
5am 0
Low
6am 0
Low
7am 0
Low