8.4 (Very High)
Last Updated 37 minutes ago
The hourly Wailua, HI UV Index forecast for Thursday, September 18th, 2025.
Last Updated 3 hours ago
The UV index forecast for the next five days in Wailua, HI has 2 days reaching the extreme level and 2 days reaching the high or very high levels. The peak UV intensity in Wailua over the next five days will be 11.5 on Thursday, September 18th at 1:00 pm.
The UV index forecast for Thursday, September 18th in Wailua, HI is below.
| Time | UV Index | Risk |
|---|---|---|
| 12pm | 10.8 |
Very High |
| 1pm | 11.5 |
Extreme |
| 2pm | 9.8 |
Very High |
| 3pm | 6.8 |
High |
| 4pm | 3.6 |
Moderate |
| 5pm | 1.4 |
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 Friday, September 19th in Wailua, HI 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 | 0.1 |
Low |
| 8am | 0.5 |
Low |
| 9am | 2.6 |
Low |
| 10am | 5.9 |
Moderate |
| 11am | 9 |
Very High |
| 12pm | 11 |
Extreme |
| 1pm | 11.3 |
Extreme |
| 2pm | 9.7 |
Very High |
| 3pm | 6.8 |
High |
| 4pm | 3.7 |
Moderate |
| 5pm | 1.3 |
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 Saturday, September 20th in Wailua, HI 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 | 0.1 |
Low |
| 8am | 0.9 |
Low |
| 9am | 2.9 |
Low |
| 10am | 5.6 |
Moderate |
| 11am | 8.6 |
Very High |
| 12pm | 10 |
Very High |
| 1pm | 9.6 |
Very High |
| 2pm | 8.7 |
Very High |
| 3pm | 5.5 |
Moderate |
| 4pm | 3.1 |
Moderate |
| 5pm | 1 |
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 Sunday, September 21st in Wailua, HI 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 | 1.8 |
Low |
| 10am | 3 |
Moderate |
| 11am | 8.4 |
Very High |
| 12pm | 10.6 |
Very High |
| 1pm | 10.8 |
Very High |
| 2pm | 9.3 |
Very High |
| 3pm | 6.5 |
High |
| 4pm | 3.5 |
Moderate |
| 5pm | 1.2 |
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 22nd in Wailua, HI is below.
| Time | UV Index | Risk |
|---|---|---|
| 12am | 0 |
Low |
| 1am | 0 |
Low |
| 2am | 0 |
Low |