Riverbot

25,077 gauges being watched right now

Your river will tell you when.

Set the flow and water temperature you actually fish. Riverbot reads the public gauge every 15 minutes and emails you the moment your window opens — then again when it shuts.

Set your first station — free See how it works

No card. No waitlist. Eight public networks across three continents.

Example · Grand River watershed
Speed River at Cambridge
In your window
6.9 m³/s observed 1 hour ago
7 days agoyour window: 5–12 m³/snow
🪰 Hatching now — Isonychia, Green Caddis
25,077
live gauges watched
8
public networks, 3 continents
15 min
between readings
1947
earliest history on file
The map

Find the gauge that covers your water.

Every real-time gauge in the network on one map, rivers traced in neon. Stations you've set thresholds for are coloured by current conditions — green means go. Tap “near me” and it finds the gauges around you.

  • Canada, the US, Germany, the UK, Sweden, France, Norway and the Czech Republic.
  • Water temperature live wherever the sensor exists — USGS, the Grand River, Sweden, Norway, Czechia.
  • Read in cfs or m³/s; pick once in your profile and every number follows.
The Riverbot station map, gauges highlighted around Kitchener and Guelph
A Riverbot station page: current conditions, the 7-day outlook and threshold fields
Your window

Two numbers. That's the whole setup.

Min and max flow, min and max water temperature, per station. Leave a side blank and it's unbounded. Then Riverbot only writes to you on a transition — window opens, window closes — with a cooldown so a river flapping around your threshold doesn't fill your inbox.

7-day outlook, with the error bars

Predicted daily flow for the week, each day flagged against your thresholds. On station 02GA016 the model beats a naive “same as today” baseline by 11% (MAE 2.014 vs 2.261 m³/s) — and says so, right under the numbers. Days 5–7 compound error; read them as trend.

Weather in the same glance

Sky, wind and rainfall sit beside every forecast day — because 31 km/h NNW decides your morning as surely as the flow does.

For fly anglers

It knows what's coming off the water.

Hatch calendars from fly shops and guides who actually fish the river: insect, hook size, and the patterns that work — month by month, all year. On rivers we have data for, sign in and the station page tells you what's hatching today, next to the flow that decides whether you go.

Isonychia Green Caddis Hendrickson Blue-Winged Olive Sulphur Hook sizes + patterns
The station picker, showing a hatching-now badge

Three steps, about ninety seconds.

  1. 01

    Pick a station

    Search by name or drop a pin on the map. 25,077 real-time gauges, from your home creek to a river you have never fished.

  2. 02

    Set your window

    Min and max flow, min and max temperature. Leave what you do not care about blank.

  3. 03

    Go fishing

    We watch the gauge. You get one email when it opens and one when it closes — nothing in between.

The Riverbot complication on an Apple Watch face

On your phone and your wrist

Private beta

Native iPhone and Apple Watch apps — favourites, live flow, charts and the outlook, plus a watch-face complication. Android is built and heading to Play. Everything runs in the browser today.

Create an account

Not shipped yet, honestly

Water level across the whole catalog More Canadian temperature sensors Starter thresholds by species Predicted hatch dates from water temp Wider hatch coverage A heavier forecast model Water clarity, if a public feed ever appears

Stop refreshing the gauge page.

Pick your river, type two numbers, close the tab. We'll write when it's worth going.

Create a free account