San Carlos Bay - Sanibel Island Causeway UV IndexUnited StatesFLLee CountySan Carlos Bay - Sanibel Island Causeway1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAASan Carlos Bay - Sanibel Island Causeway UV forecast issued yesterday at 3:18 pm. Next forecast at approx. 3:18 pm.Get WillyWeather+ to remove ads