Tidepooling window planner
Arrive on the falling side of a daylight low.
A tidepooling window depends on how low the water gets, when it turns, and whether usable daylight overlaps the exposure. Perigee brings those signals together with wind and water trend for one coastal station.
The result centers the lowest useful low and tells you whether the water is falling, rising, or missing from the read.
Start with the decision
The questions worth answering before the plan hardens.
- Question 01
Which daylight low exposes the most shoreline in the next planning window?
- Question 02
Can I arrive while the water is still falling instead of after it has turned?
- Question 03
Are wind, access, or missing tide predictions reasons to choose another place or day?
What Perigee combines
One window, with the inputs kept separate.
A single score can hide the reason a plan changed. The activity read keeps each coastal input visible and marks unavailable data instead of silently treating it as favorable.
- 01Lowest low
- The lowest available predicted water level and its station-local time.
- 02Daylight
- Whether the exposure window occurs between sunrise and sunset.
- 03Water trend
- Falling, rising, slack, or unknown around the requested time.
- 04Wind
- Forecast wind and gust context for the shoreline visit.
What comes back
A result you can inspect, not a verdict.
Perigee is a planning aid. It explains the window and the state of its inputs so you can make the next check with better context.
- 01
A broad arrival window centered on the lowest available daylight low.
- 02
A clear reminder to favor the falling side when local access allows it.
- 03
An incomplete read—not a positive one—when tide predictions are unavailable.
Field note
Check park hours, closures, swell and surf, escape routes, and the return path before going. Give wildlife space and leave attached organisms where they are.
Keep planning