SeaThrough
Forecast ocean water clarity
About
This app forecasts ocean water clarity for divers and spearfishers, focusing on Southern California. It uses a map to explore coastal areas, check hourly breakdowns of conditions, and plan optimal times for visibility based on tide, swell, and wind.
What's New in SeaThrough
1.3
May 15, 2026
- More accurate water clarity readings: current conditions now match the hourly forecast for the same hour, with a refined tide-slope adjustment. - Water temperature in hourly forecast is now correctly shown in °F. - Better handling when a buoy is partially down — falls back to modeled conditions instead of going blank. - Faster refresh on the Planned tab and a Try Again option when network hiccups interrupt loading.
MoreFAQ
What is SeaThrough?
SeaThrough provides ocean conditions and an estimated water-clarity forecast, optimized for Southern California. It helps divers and spearfishers plan their outings by predicting visibility based on tides, swell, and wind.
Does SeaThrough have ads?
No, SeaThrough is ad-free, allowing for an uninterrupted user experience while planning your dives.
What devices does SeaThrough support?
SeaThrough is currently supported on iPhone devices.
How accurate are the forecasts?
Forecasts are estimates for informational purposes only. The app combines key signals like tide movement, swell, and wind to provide a glanceable forecast, but users should always verify conditions locally and prioritize safety.
Can I request data for new locations?
Yes, if a location's data is not available, you can request it within the app. Requested locations will be prioritized and added in future releases.
What is the age rating for SeaThrough?
SeaThrough has an age rating of 4+, making it suitable for a wide range of users.
How often is SeaThrough updated?
The latest version, 1.3, was released on May 15, 2026, indicating active development and updates.
What are the key features of SeaThrough?
Key features include map-based spot discovery with pinning and favorites, hour-by-hour clarity forecasts, tide insights, and quick planning with saved spots.