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Weather data straight from your boat.

A weather service shows you values for a whole region. Smartboatia shows you what's happening right at your boat. The Hub measures air pressure and sea state with its own sensors. Wind, depth and water temperature come from your instruments on board.

  • Own barometer on board
  • Storm notice when pressure drops
  • 400 days of history
Smartboatia app: wind, air pressure and water temperature at your boat
Environmental conditions in the Smartboatia app
Your advantage

Weather services estimate. Your boat measures.

Whether in the marina, at anchor or underway: Smartboatia shows you the conditions right at your boat. Not for a whole region, but exactly where you are. What matters isn't a single reading, but how it changes.

The forecast tells you what should be coming. Your boat shows you what's actually arriving.

What Smartboatia measures and what the values tell you

More than numbers. Understand what's happening on the water.

A single reading often says little. Only the trend shows what's changing and what that means for your trip.

  • Air pressure

    It's not the value that counts, it's the change.

    A single pressure reading says little. Only the trend over the last few hours shows how the weather is developing. If pressure drops fast, a low is often on its way. If it slowly rises again, the weather is settling.

  • Wind

    Not just how strong, but how steady.

    Average, minimum and peak over the selected period show you how much the wind varies. Plus the wind rose and the wind direction trend. That helps with decisions like reefing, setting a gennaker or planning watches. Measured by your wind sensor, right at your boat.

  • Sea state (Sea State Index)

    How the water really feels.

    The Hub calculates the Sea State Index (SSI) from its motion sensor. The more restless your boat moves, the higher the value. It's not a wave height, but a measure of how restless it is on board. So even from home you can see whether your boat is lying calmly in the marina.

  • Water temperature

    More than just swimming weather.

    Water temperature comes from your transducer on board and is saved automatically over time. Together with wind, air pressure and sea state, you get an accurate picture of the conditions around your boat.

  • Water level

    Before the water rises or drops.

    The water level alarm keeps an eye on official gauges in Germany, the Netherlands, Norway and Finland. Set your own thresholds for high and low water and get a push notification when a gauge reaches them or is forecast to. So you know in good time whether your berth is safe.

How it works

From air pressure to weather warning.

  • Step 01

    The Hub measures air pressure.

    The Smartboatia Hub measures air pressure every minute with its built-in barometer, even on boats without any instruments. Every five minutes it saves a value, for up to 400 days.

  • Step 02

    Pressure trend at a glance.

    The app shows your pressure trend like a classic barograph, just digital. A fast drop in pressure points to an approaching low. The bigger the drop, the stronger the winds you can usually expect.

  • Step 03

    Warned early.

    If air pressure falls or rises very fast, the app warns you on board with a sound: “It's getting stormy!” On the map, a trend symbol always shows you where the pressure is heading. You can see the symbol from home too.

How to read air pressure

Understanding pressure changes.

Air pressure change, expected wind and storm warning of the app
TrendIn 1 hourIn 3 hoursWhat it meansStorm warning
Rising extremely fastfrom +3.3 hPafrom +10 hPavery strong wind possible (10+ Bft)yes
Rising very fastfrom +2.0 hPafrom +6 hPastrong wind possible (8 to 9 Bft)yes
Rising fastfrom +1.3 hPafrom +4 hPahigh approaching, fresh breeze (6 to 7 Bft)no
Rising slightlybelow that, steadily risingweather improvingno
Steadylittle changestable conditionsno
Falling slightlybelow that, steadily fallinglow on the wayno
Falling fastfrom −1.0 hPafrom −3 hPalow with fresh breeze (6 to 7 Bft)no
Falling very fastfrom −2.0 hPafrom −6 hPastrong low, gale possible (8 to 12 Bft)yes

Wind strengths are rules of thumb for the North Sea and Baltic, or 40 to 60 degrees north.

The storm warning is no substitute for a weather forecast.

Tessa & Hartmut Ludwig
“We have been using Smartboatia for two years on our circumnavigation and don't want to sail without it anymore. Based on the recorded data, we make better decisions while sailing. It gives us security and makes a lot of things easier.”
Tessa & Hartmut LudwigSY Mersoleil · Circumnavigation
  • Boat monitoring
  • Sailing performance
Water level alarm

Keep an eye on the water level. No Hub needed.

Whether it's high water on the Baltic or low water in your harbour: the water level alarm lets you monitor official gauges in Germany, the Netherlands, Norway and Finland. You see the readings from the last few hours and the official forecast for the days ahead.

Set your own high and low water thresholds for each gauge, each with an early warning and an alert. When a threshold is reached or forecast, you get a push notification on your phone with the expected peak or low and the time.

No Hub or boat needed: just open the Smartboatia app, create an account or log in, and you're set.

Where the data comes from

Own sensors and existing onboard instruments.

The Hub brings its own sensors and also reads data from your existing instruments via the onboard network. So you always know where each reading comes from.

  • Own sensors in the HubAlways on board.
    • Air pressureSensor
    • GPSSensor
    • Motion, giving sea state and heelSensor
  • Data from your onboard networkRead via NMEA 2000.
    • Wind speed & directionBus
    • DepthBus
    • Water temperatureBus

SENSOR: the Hub's own sensors
BUS: data from your existing instruments via your NMEA network

Citizen Science

Every trip helps us understand our oceans better.

With your consent, your boat reports air pressure and position to the German Weather Service (DWD) every hour. Smartboatia does this automatically, as part of the DWD's voluntary observing ships programme. Your readings help capture the weather at sea more accurately.

You sail as usual. Your boat delivers valuable data for science along the way.

Want to join? You'll need a call sign. Email us at support@smartboatia.com and we'll activate your boat.

DWD
For sailing boats and motorboats

Good weather data matters on every boat.

See the Hub

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