A runner in a black shell jacket on a windswept mountain ridge, storm clouds trailing visible shafts of rain over layered ridgelines, with sun breaking through on the right.

Weather for SuuntoPlus™

Weather You Can Read.
While You Move.

Gustin puts the current weather and the next seven hours on one workout screen — wind, temperature and precipitation in the same three columns, with a pointer showing where the wind reaches you from.

Add to Your Watch — Free See the eight steps ↓

Free SuuntoPlus™ app · add it in the Suunto app (SuuntoPlus™ Store) · Suunto 9 Peak Pro, Vertical, Race, Race S, Race 2, Vertical 2 and Ocean.

Gustin's Current view on a Suunto watch: 21:19 at the top, south-westerly wind at 6 gusting 8 metres per second on the left, 20 degrees in the centre, 23 per cent precipitation probability and 1.2 millimetres on the right, Vantaa along the bottom, and a blue wind pointer at the lower edge of the display.

Before you set off

The Forecast Stayed Home

You checked the forecast in the kitchen, then you left. Two hours later the wind has swung, the ridge is exposed, and the way back runs straight into it. Weather rarely ruins a session on its own — it changes what the second half costs you. Your call is easier when the current hour and the next seven are already on your wrist.

Check it early — and the way back is a decision, not a surprise.

Why I put the wind first — a note from me ↓

Now and next

Eight Steps. One Layout.

Current, then every hour to +7 h — and every step uses the same three columns, so nothing moves as you step forward. Wind on the left, temperature in the centre, precipitation on the right. Press the upper button to advance, hold it to go back, press the lower button for Current.

  • Wind pointer — the wide marker hugging the display edge, pointing inward from the direction the wind reaches you.
  • Forecast ring — a thin yellow ring around the edge, meaning you're looking at a forecast hour rather than now.
  • Progress squares — seven small squares above the city, filling yellow left to right, one for each hour ahead.
  • City — the place the weather is for, along the bottom edge, with the clock at the top.

Showing: current weather

Tap the top button to step forward, hold it to step back; tap the bottom button for Current. Example data.

The wind pointer

It Turns as You Turn

The pointer shows the meteorological direction — where the wind reaches you from, not where it's headed. It's drawn at wind direction minus your current heading — the same heading the watch's own navigation uses. Above about 2 km/h that is your GPS direction of travel, so swinging your arm doesn't move it; slower than that, it follows the compass. Turn at the end of a straight and it swings to the other side of the screen. Eight 45-degree sectors, updated at most once per second, keep it steady.

wind from the south-west Heading NE — wind behind Heading SW — wind ahead
Same wind, two watch headings — the pointer follows the orientation of the watch.
Add to Your Watch — Free

Jumps to the quick setup steps — adding it is free.

Good to know

The Details

For the curious and the practical — how Gustin loads its data, the questions people ask, what changed in the current version, and where the limits are.

  • Free — no purchase, no subscription
  • Works on UI2 Suunto watches — 9 Peak Pro and later
  • Adds a screen — doesn't replace yours
How it works

Gustin is a SuuntoPlus™ feature app, which means it adds one screen to a workout. Your usual sport screens stay exactly as you set them, and Gustin writes nothing into the workout summary — it reads weather values and draws them, and that is all it does.

The Current view is read as a single weather object. Each forecast hour is fetched field by field. Only one request runs at a time, and only for the view you are looking at. When you switch views, an in-flight read finishes first, then the newly selected hour loads.

Nothing loads ahead. Hours you have opened stay ready while you remain on the Gustin screen. Every 15 minutes Gustin checks whether new weather has arrived and reloads only if it has; a new hour or local time moving backwards also reloads. The watch's overall unit mode selects Celsius and m/s or Fahrenheit and mph; precipitation remains in millimetres. The app holds two live subscriptions — your heading and the local clock — and releases both when you leave the screen.

For the curious — the exact behaviour:

  • Current weather is read as one object; forecast hours are fetched field by field.
  • Exactly one request runs at a time, and only for the selected view. Nothing is loaded in advance.
  • Loaded hours are reused while the Gustin screen stays open. Leaving the screen discards them; opening it again starts from Current. A view that is not loaded yet shows placeholders for a second or two.
  • Every 15 minutes Gustin reads the time of the last weather sync and reloads only if it has changed. A new whole hour or local time moving backwards always reloads.
  • The clock is reformatted only when the displayed minute or selected view changes, and on-screen text is rewritten only when it changes.
  • Heading updates are stored as they arrive; the wind sector and the graphics are recalculated at most once per second, on the clock tick.
  • The overall unit mode selects °C and m/s or °F and mph. Separate temperature and speed unit preferences are not read; precipitation is always in millimetres.
  • Two live subscriptions only — heading and the local clock — released when you leave the screen.
  • No outputs: nothing is recorded into your workout summary.
  • The wind pointer stays hidden until a valid heading and wind direction are available. Invalid subsequent heading updates leave the last valid heading in use; a weather view without wind direction hides the pointer.
  • Current shows the local time in white. Forecast views show the selected whole hour in yellow; +1 h means the next whole hour, not exactly 60 minutes from now.
FAQ

Which watches does Gustin work on?

UI2 Suunto watches — Suunto 9 Peak Pro, Vertical, Race, Race S, Race 2, Vertical 2 and Ocean. Older UI1 watches aren't supported.

Where do I find it?

Open the Suunto app on your phone, go to the SuuntoPlus™ Store, find Gustin and add it. It syncs to the watch, and then you add it as a SuuntoPlus™ app before starting your workout. There's no direct install link from a web page. New to SuuntoPlus™? See how to get started →

Does it cost anything?

No. Gustin is free — no purchase, no subscription.

Does it replace my normal sport screens?

No. It adds one screen to the workout and leaves your own screens untouched. It records nothing into your workout summary — it's purely a display.

Why do some values show --?

The selected weather view may still be loading, or the watch may not have that value — Current weather, for example, often comes without a gust value. Loaded views are reused while you stay on the Gustin screen; leaving the screen, a new hour or newly synced weather loads them again. If values remain missing, sync the watch with the Suunto app to check for updated weather data.

Does the wind pointer show where the wind is going or where it's coming from?

Coming from. It's the meteorological convention — the pointer sits on the side the wind reaches you from, relative to your heading.

Changelog

1.12 — 8 November 2026

  • Weather icons now use the same set as the watch's built-in weather screens, with separate icons for scattered and broken clouds.
  • Mist now has its own icon; it used to appear as a row of dashes.
  • Gustin no longer runs an empty background task every second, which saves the watch a little work for the whole workout.
  • Redrawing the weather view no longer creates a new list of wind directions each time, so it leaves less temporary data behind. This and the change above leave a little more room for route navigation and other SuuntoPlus apps.

1.10 — 12 October 2026

  • About 18% smaller app template, so it needs less memory each time the Gustin screen opens.
  • Weather is loaded only for the view you open, without loading other hours in advance.
  • Every 15 minutes Gustin checks whether new weather has arrived and reloads only if it has.
  • The wind pointer and graphics are updated at most once per second.

1.09 — 8 October 2026

  • Avoid repeated clock formatting and weather-icon mapping when the displayed minute, forecast selection, and weather code have not changed.
  • Refresh cached clock and icon state when returning to the screen, while keeping the existing weather loading and wind-pointer updates.

1.08 — 9 September 2026

  • Widened the precipitation probability field to give the 100% value more room on one line while keeping the same text size and alignment.
  • Start with Current weather and +1 h, then load just one hour ahead as you browse the forecast.
  • Reuse cached hours and stop loading forecasts that are no longer needed after changing views.
  • Avoid unnecessary refreshes at the half-hour mark. Refresh after 30 minutes, when the hour changes, or when the clock moves backwards.

1.07 — 26 July 2026

  • A dedicated view for Current and for each of the next seven hours.
  • The wind pointer became heading-relative and now hugs the display edge, so it turns with you.
  • Forecast hours are marked clearly — yellow time, yellow pointer, a thin outer ring and a seven-step progress indicator — so you always know how far ahead you're looking.
  • The three-column layout was refined with feels-like temperature, weather icons, precipitation, location and clearer units.
  • New controls: press the upper button to advance, hold it to go back, press the lower button for Current.
  • Switching is smoother because hours load gradually and already-loaded weather is reused.
  • Reliability improved, and weather icons were restored on physical watches.

1.03 — 26 July 2026

  • First public release.
Data & limits

The weather itself comes from Suunto. It's delivered to the watch by the Suunto app on your phone, so keep the two connected long enough to receive a recent update before you start. If the watch hasn't synced for a while, values can be out of date or show --. Gustin reads the weather already stored on the watch; refreshing its cache does not itself request a new forecast from the internet.

Each forecast hour loads when you first open it. Loaded hours stay available while you remain on the Gustin screen. After leaving the screen, at a new hour or after newly synced weather, values may briefly show -- while the selected view loads again.

Running several SuuntoPlus™ apps together with active route navigation puts extra pressure on the watch. If it becomes unstable, run fewer at once.

If something doesn't behave the way this page describes, tell me — [email protected].

Built to Be Read at a Glance

  • Eight Hours, One Layout

    Current plus every hour to +7 h, always in the same three columns. Nothing shifts position as you step forward, so you read it the same way every time.

  • Wind Relative to You

    The pointer sits where the wind reaches you from, minus your current heading. Turn around and it swings across the screen, because it belongs to you, not the map.

  • Instant Once Loaded

    Only the hour you're looking at is fetched — nothing loads ahead. Loaded views switch immediately; a new one shows placeholders for a second or two.

  • Adds a Screen, Changes Nothing

    Your sport screens stay as you built them. Gustin records nothing into your workout summary and has nothing to configure — it's a display, and only a display.

A note from me

Why the Wind Comes First

I kept wanting the same thing on long, exposed routes: not a wind speed, but a side. Knowing it's 8 m/s tells you less than knowing it's arriving over your right shoulder and will be in your face for the whole way back — and that only works if the pointer accounts for the direction you're actually facing.

So Gustin draws it at wind direction minus heading, sits it right on the edge of the display, and quantises it into eight sectors so it doesn't twitch while your arm swings. Everything else on the screen is there to keep that one reading in context.

— Łukasz, szmigieldesign

Getting started

Set It Up Once

Suunto 9 Peak Pro, Vertical, Race, Race S, Race 2, Vertical 2 and Ocean. Older UI1 watches aren't supported. There is nothing to configure — three gestures to learn, and that's the whole app.

1 · Get it on your watch

  1. Open the Suunto app on your phone.
  2. Go to the SuuntoPlus™ Store and find Gustin.
  3. Tap Add — it syncs across to the watch.

2 · Then, on your watch

  1. Add it before you start.

    Add Gustin as a SuuntoPlus™ app before you start the workout.

  2. Step through the hours.

    Press the upper button to step through the hours, hold it to go back, press the lower button to return to Current.

  3. Give it a moment.

    Give Current weather a moment to load. Each forecast hour loads when you open it.

New to SuuntoPlus™? See how to get started →