As of 8:37 PM CDT on August 28, 2025, all 12 cities in St. Mary Parish, LA in our database have a UV Index reading of 0, indicating no radiation from the sun.
Over the next 24 hours, the highest UV Index reading in St. Mary Parish, LA is expected to be 7.1 in Morgan City between 1:00 PM - 2:00 PM CDT tomorrow.
Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
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Color | |||||
Risk | Low | Moderate | High | Very High | Extreme |