ultraviolet index in Sonoma Creek (4 mi.) | ultraviolet index in Edgerley Island (Napa River) (6 mi.) | ultraviolet index in Brazos Drawbridge (Napa River) (6 mi.) | ultraviolet index in Hog Island (San Antonio Creek) (8 mi.) | ultraviolet index in Lakeville (Petaluma River) (8 mi.) | ultraviolet index in Petaluma River Entrance (8 mi.) | ultraviolet index in Napa (Napa River) (10 mi.) | ultraviolet index in Upper Drawbridge (Petaluma River) (10 mi.) | ultraviolet index in Vallejo (Mare Island Strait) (11 mi.) | ultraviolet index in Mare Island (14 mi.) | ultraviolet index in Gallinas (Gallinas Creek) (14 mi.) | ultraviolet index in Pinole Point (14 mi.) | ultraviolet index in Selby (15 mi.) | ultraviolet index in Hercules (Refugio Landing) (15 mi.) | ultraviolet index in Point San Pedro (15 mi.) | ultraviolet index in Crockett (15 mi.) | ultraviolet index in Point Orient (18 mi.) | ultraviolet index in Point San Quentin (19 mi.) | ultraviolet index in Pierce Harbor (Goodyear Slough) (19 mi.) | ultraviolet index in Corte Madera Creek (19 mi.)