Please read before using this app. It shows general ocean and weather conditions to help you plan. It does not determine whether any beach, activity, or moment is safe, and favorable-looking data is never a guarantee of safety.
Wave, wind, tide, and current conditions on Kauaʻi can change within minutes. The data comes from third-party public services, including the National Weather Service (NOAA) and Open-Meteo, and may be delayed, incomplete, or inaccurate. We do not warrant the accuracy, completeness, or suitability of any information shown, including data from those services. Always observe actual conditions before entering the water.
This app does not replace lifeguards, posted warning flags and signs, or official advisories from the County of Kauaʻi and the National Weather Service — those always override what is shown here. When in doubt, stay on shore. If a beach has no lifeguard, the safest thing is often not to swim. You alone are responsible for your decisions and your safety.
In any emergency, call 911 immediately. The Kauaʻi Ocean Safety Bureau and Kauaʻi Fire Department respond to ocean emergencies.
Swimming, snorkeling, surfing, and other ocean activities carry inherent risks of serious injury and death, including from waves, shorebreak, and currents that are natural and not always visible. To the fullest extent permitted by law, the creators and distributors of this app are not responsible for any injury, illness, death, or property damage arising from use of this app or its information, whether based on contract, negligence, or any other theory. You assume all risk when entering the ocean or visiting any location shown.
Some recommendations include affiliate or partner relationships. This does not affect safety information or beach ratings.
We do not collect personal information, accounts, or location data. We do not track you.
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FamilyAdd Kauaʻi Beach Guide to your home screen for one-tap access — works offline too.
1. Tap the Share button (square with up arrow) at the bottom of Safari
2. Scroll down and tap Add to Home Screen
3. Tap Add in the top right
1. Tap the three-dot menu in the top right
2. Tap Add to Home Screen or Install App
3. Tap Install to confirm
1. Look for the install icon (⊕ or download symbol) in the URL bar on the right
2. Click it and confirm — the app gets its own window
Why install? Faster access, full-screen experience, works offline at the beach where signal is weak.
Effective Date: May 2026
No personal information. No accounts, names, emails, phone numbers, or precise location. There is no signup, no login, and no profile.
We do use privacy-respecting product analytics (PostHog) to understand how the app is found and which features are used — for example, which sections visitors open and how long they spend — so we can keep improving it. This is anonymous usage data only. We do not use tracking cookies (analytics state stays in your browser's local storage), and if your browser sends a "Do Not Track" signal, we turn analytics off entirely.
We do not sell or share your data with advertisers. We do not build advertising profiles, and we do not track you across other websites. We do not collect anything that personally identifies you.
The app fetches public weather and ocean data from Open-Meteo (open-meteo.com). Your IP address may be visible to Open-Meteo when these requests are made — this is standard for any website. We have no contract with them and receive no data back about you.
Your browser will ask permission to share your location with this app. If you allow it, your position is shown on your screen only — it never leaves your device. We do not see, store, or transmit it.
If you install this app to your home screen, your browser caches recent map tiles, weather data, and beach photos so the app works without signal. That data lives on your device and is never transmitted to us. You can clear it any time from your browser settings.
Some external links (gear rental, tours) may include affiliate codes. If you make a purchase, the merchant may pay this app a small commission. The merchant — not us — receives your purchase information directly from you.
Beach photos are licensed under Creative Commons. Wikimedia Commons contributors provided the photos for Hanalei, Keʻe area, Secret Beach, Kalihiwai, Poʻipū, Shipwreck, Māhāʻulepū, Lydgate, Kalapaki, Wailua, Polihale, and Kekaha. Flickr CC-licensed contributors: Gord Webster (ʻAnini), Peter Burka (Keʻe), Garden State Hiker / elchode (Tunnels), Nicki Dugan Pogue / TheNickster (Brennecke sunset), Gabriel Millos / gamillos (Donkey Beach). Full license info is in our public source tree.
This app does not knowingly collect any data from anyone, including children under 13. It is safe for the whole family.
If this policy changes, we will update the date above and re-prompt acceptance for material changes.
Questions? Email the developer at mossmankauai@gmail.com.