UV Index for Nassau, NY

Current Nassau UV Index

0.7 (Low)

Last Updated 47 minutes ago

Hourly Nassau UV Index

The hourly Nassau, NY UV Index forecast for Saturday, September 13th, 2025.

5 Day Hourly Nassau UV Index Forecast

Last Updated 3 hours ago

The UV index forecast for the next five days in Nassau, NY has no days reaching the extreme level and 1 day reaching the high or very high levels. The peak UV intensity in Nassau over the next five days will be 6 on Tuesday, September 16th at 1:00 pm.

The UV index forecast for Saturday, September 13th in Nassau, NY is below.

Time UV Index Risk
6pm 0.1
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Sunday, September 14th in Nassau, NY 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 0.4
Low
9am 1.2
Low
10am 2.5
Low
11am 3.9
Moderate
12pm 5
Moderate
1pm 5.3
Moderate
2pm 4.8
Moderate
3pm 2.6
Low
4pm 0.5
Low
5pm 0.2
Low
6pm 0.2
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Monday, September 15th in Nassau, NY 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 0.4
Low
9am 1.3
Low
10am 2.6
Low
11am 4.1
Moderate
12pm 5.4
Moderate
1pm 5.1
Moderate
2pm 4.5
Moderate
3pm 3.4
Moderate
4pm 2.4
Low
5pm 1.1
Low
6pm 0.3
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Tuesday, September 16th in Nassau, NY 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 0.4
Low
9am 1.2
Low
10am 2.5
Low
11am 4.2
Moderate
12pm 5.5
Moderate
1pm 6
High
2pm 5.4
Moderate
3pm 4
Moderate
4pm 2.4
Low
5pm 1.1
Low
6pm 0.3
Low
7pm 0
Low
8pm 0
Low
9pm 0
Low
10pm 0
Low
11pm 0
Low

The UV index forecast for Wednesday, September 17th in Nassau, NY 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 0.4
Low