Waterspeed uses DarkSky.net and Worldtides.info to provide you a 6 days/1 hour forecast with temperature (°C or °F), conditions, Tides, wind direction, wind speed, and gust.
Waterspeed uses the same weather provider to search and show the Wind speed and direction when you save or edit a track.
Please note: Weather, Tides forecast, and Automatic detection are available only if you subscribed to Waterspeed Pro (see the related article for details). It applies only to activities started from the iPhone. For the Watch's one please go and manually Edit the track to get the wind speed value automatically.