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Understanding UV Index Forecasts During Hurricane Season

June 18, 2026 · The Clime Team
Understanding UV Index Forecasts During Hurricane Season

During hurricane season, which runs from June 1 through November 30, the United States often experiences increased cloud cover and precipitation. These weather conditions can lead to lower UV Index values, as clouds and rain can block or scatter UV radiation. However, even on overcast days, UV rays can penetrate through the clouds, so it's important to remain vigilant about sun exposure.

What Is the UV Index?

The UV Index is a scale that measures the risk of harm from unprotected sun exposure. It ranges from 0 (low) to 11+ (extreme), with higher values indicating a greater potential for skin damage. The National Weather Service, in collaboration with the Environmental Protection Agency (EPA), provides daily UV Index forecasts for various locations across the U.S. (epa.gov)

How Does Hurricane Season Affect the UV Index?

During hurricane season, the increased cloud cover and precipitation can lead to lower UV Index values. However, even on overcast days, UV rays can penetrate through the clouds, so it's important to remain vigilant about sun exposure. For example, in Miami, Florida, the UV Index can still reach high levels even when thunderstorms are forecasted.

How Can Clime Help You Stay Informed?

Clime offers comprehensive weather forecasting tools that include UV Index predictions. By providing detailed and accurate forecasts, Clime helps you plan your outdoor activities safely, ensuring you're aware of potential UV risks even during hurricane season.

Tips for Protecting Yourself During Hurricane Season:

  • Check the UV Index Regularly: Even on cloudy or rainy days, UV radiation can be significant. Use Clime's tools to stay updated on the UV Index for your area.

  • Use Sun Protection: Apply broad-spectrum sunscreen with an SPF of 15 or higher, wear protective clothing, and seek shade during peak sun hours.

  • Be Aware of Reflected UV Radiation: Surfaces like water, sand, and snow can reflect UV rays, increasing exposure.

By staying informed and taking appropriate precautions, you can enjoy outdoor activities safely during hurricane season.

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