Easy to read, visual forecast overviews for your favorite spots and in-depth detailed forecasts for surf spots worldwide.
Sine provides you with an easy to read overview of your favorite spots so you can tell within seconds from opening the app if there are good days ahead.
You don't have to hold a degree in meteorology to be able to use the app (but if you want to get into the details it's all in there). Below you will find a guide telling you how to read our forecast.
Alarm: Tells you when the conditions for the alarms will be met.
Wave height: The size of the wave at the beach. A good beginner size is normally 0,5-1m (2-3ft).
Swell height and direction: Wave height without swell means bumpy wind waves. It is important that the swell is hitting the beach so look carefully at the direction arrow.
Wave period: Seconds between the waves. Above 12 is great.
Wind strength and direction: Look for calm winds below 5m/s (10kts / 18kph) or winds blowing towards the waves (offshore winds).
Tide: Low and high tide values are compared to the mean sea level. Some spots are only surfable at a specific tide, for others, tide is of no importance. Always ask a local for tips if you are surfing at a new place.
Weather conditions: Tells you what wetsuit to bring.