Water temperatures are crucial data when planning a paddle. Maximum cold shock occurs in the 50-60 degree (F) range. See National Center for Cold Water Safety
- NOAA National Data Buoy Center (NDBC)
- NOAA Coastal Water Temperature Guide (CWTG)
- Water Temperature Map of the Central Atlantic Coast
- Water Temperature Map of the Southern Atlantic Coast
- Water Temperature Map of the Northern Atlantic Coast
- Water Temperature Map of the Eastern Gulf of Mexico
