The dive window is the set of hours when waves have dropped below half a metre, the wind is light, and a storm has passed in the last three days and scoured the seabed.
How we calculate it
- Waves below 0.5 m at a point about 3 km offshore.
- Wind below 7 m/s.
- A storm in the last 72 hours from a direction that hits that beach.
- Visibility we estimate from the time since the sea calmed: under a day is usually poor, up to 2.5 days average, longer is good.
This is a beta version. Visibility in the Baltic also depends on algal blooms, rain and river runoff. We will calibrate the model with reports from divers, so every report from the water helps.
Why it matters for amber
Amber is exposed during a storm, and after one to three days sand covers it again. The window between the sea calming and the seabed being buried again is short, so you have to time it well.
For where to look underwater, read amber underwater. For entry rules and safety, see shore diving in the Baltic Sea.
Water temperature
For each beach we show the sea surface temperature. From autumn to spring you need a drysuit and experience in cold water.
Email alert
Do not miss the next window
The best windows last a few hours: after a storm, after rain, on a clear night with an active Sun. Sign up and we will email you when the index at your spots goes above 60.