Features
Two Display Views
Detail View
A full 24-hour tide curve with color-coded positive and negative tides, a yellow "Now" marker showing current level and rise/fall rate, weather conditions, and alert banners. Tap the graph on touchscreen models to see the tide value at any time.
Large View
Four big tide numbers (High, Low, High, Low) with times, a rising/falling indicator with rate, and weather at the bottom. Tap to toggle the bar chart overlay with warning and preferred level markers. Readable from across the room.
Choose Detail, Large, or Both. In Both mode, the display auto-cycles between views every six minutes.
Core Features
Multi-Station Monitoring
Track up to three NOAA tide stations simultaneously. The display rotates through each one every six minutes, and the web dashboard shows all stations at once.
Weather Alerts
Real-time NWS alerts with four severity levels (Minor, Moderate, Severe, Extreme). Coastal floods, high surf, rip currents, tsunami watches, small craft advisories, and more. Color-coded banners on the device, detailed cards on the web dashboard.
Current Weather
Temperature, wind speed, and wind direction displayed alongside tide data on every view. Data from MET Norway's open weather API.
Web Dashboard
Type tidesy.local on any device on your network. Interactive tide charts, station maps, alert details, dark mode, and device configuration. No app. No account. Explore the web dashboard.
Warning and Preferred Levels
Set a warning tide height and a preferred range. Both appear as colored zones on the graph and the web dashboard, so you can see at a glance when conditions match your needs.
Custom Colors
Six color pickers let you customize the graph fill, number colors, warning band, and preferred band on all color LCD models. Make Tidesy match your decor.
Night Mode
Configurable Hours
Set when night mode starts (PM) and ends (AM). During night hours, the screen dims to your chosen level. Day brightness is 1-100%. Night brightness is 0-100%.
Screen Off Option
Set night brightness to 0% and the screen turns completely off during sleeping hours. It comes back on automatically in the morning with fresh data. Perfect for bedrooms.
Automatic Firmware Updates
Tidesy checks for updates every time it boots. Critical fixes install automatically. Optional updates show a notification on the device and web dashboard so you can install when convenient. You can also update via microSD card. Every update is logged with date, version, and source.
Vestaboard Integration
Connect Tidesy to a Vestaboard Flagship on the same WiFi network and it sends live tide data to the split-flap display automatically. Three views (Detail, Large, Alerts), eight tile colors, and configurable update intervals. Learn more about the Vestaboard integration.
Tidesy Cloud (Optional)
Want to check your tides from outside your home network? Enable Tidesy Cloud with one tap on the local dashboard and get the same live view at app.tidesy.com in any browser, anywhere. Every device includes a free 6-month trial — no payment details needed to start — and continues as Tidesy Premium after the trial. Your device works fully on its own with or without cloud access. Learn more about Tidesy Cloud.
Environment Cards
Tidesy shows the conditions that shape a day at the coast right alongside the tide curve:
Rain Forecast
A color-coded rain strip below the tide chart shows the hourly precipitation forecast. From light drizzle to heavy downpour, plan your day at the coast at a glance.
UV Index
The current UV reading and EPA category (Low / Moderate / High / Very High / Extreme), so you know whether to grab a hat. Auto-hides at night.
Air Quality
Current AQI with the EPA-colored category (Good through Hazardous), so you can decide whether to open the windows or take the morning run.
Waves & Water Temperature
Significant wave height (the average of the highest one-third — the value you’d hear in a marine forecast) and water temperature at the nearest NOAA buoy. Surfers and swimmers, this is your card.
Sun & Moon Overlay
Sunrise, sunset, and current moon phase drawn directly on the timeline. See at a glance whether the next low tide falls in daylight or after sunset.
Clamming View
For Pacific Northwest beaches with active razor clamming, Tidesy shows the upcoming WDFW-approved dig windows directly on the tide view — a green overlay band marks legal harvest hours around each evening low tide, with closure notes when a beach is under advisory or off-season. A separate schedule page lists every approved dig in date order.
Flooding (Inundation) Overlay
For stations where coastal flooding is a concern, Tidesy shows a flood-risk overlay on the detail view. When a forecast high tide is set to exceed NOAA minor, moderate, or major thresholds, a colored band appears across the at-risk hours — yellow for nuisance flooding, orange for significant impact, red for major flooding. Auto-hides when no threshold will be crossed in the next 24 hours.
Alert Area Maps on the Dashboard
NWS alerts include a polygon defining the affected geographic area. The web dashboard renders that polygon at full resolution alongside your configured stations, so you can see exactly how much of the surrounding region is covered and whether you sit near the edge or in the heart of the warning zone.
Live Weather Radar
Toggle live NEXRAD radar on any station map to see approaching storms. Updates every 5 minutes, covers the entire United States.
Private by default. No telemetry, no tracking, no ads. WiFi passwords encrypted. Tidesy Cloud is optional and opt-in — it shares only your station list and display preferences, never personal data. Read more about privacy.