Everything at a glance

So you're never caught cold again

From a morning dip in the lake to a session at the sea – BrrChecker has the answer.

Temperature & history

Current water temperature plus an animated history over 7, 14, 30 days or the whole season.

BrrScore

An honest number from 1 to 10 per activity – swimming, SUP, kayak, surfing, windsurfing, kiting, pump foiling.

Water quality

EU classification, E. coli, enterococci and water clarity – explained in plain language.

Widget & Watch

Your favorite water on the home screen and Apple Watch – without opening the app.

Temperature alert

Tell me when the lake tops 20° – the app pings you by itself.

Nearby

Beaches, parking, restaurants and pools on the map – including Look Around.

For 7 sports

The BrrScore – your swim day in a single number

Water temperature, weather, wind and waves, distilled into one honest number from 1 to 10. No more guessing whether the trip to the lake is worth it.

Because swimming isn't everything, the BrrScore rates each sport on its own – calm water for swimming, SUP and kayak; wind and waves flip the score for surfing, windsurfing and kiting. A tap shows you exactly how the number is made: water, air, surface, sun. No black-box algorithm.

Wetsuit guidance^* – per sport and weather, from “swimsuit is fine” to “5–6 mm plus hood”. Free, like the water temperature.

* from version 1.2.3

🛟 Safety first – and always free: where authorities publish a blue-green-algae or storm warning, the BrrScore caps the number automatically. You see a swim ban right away, without Pro.

Fair & honest · Launch price – yours forever

Use it free. Go Pro when you want more.

Free

0 € · forever

✓ Current water temperatures worldwide
✓ Search
✓ 7-day history
✓ BrrScore for swimming
✓ Rain radar (short-term forecast)
✓ 2 favourites

Start free

MORE WATER

Pro

$4.99 / year · about 40 cents a month

Try it free for 7 days first

Everything in Free, plus:
✓ Unlimited favourites
✓ BrrScore for all activities (SUP, kayak, surfing, windsurfing, kiting, pump foiling)
✓ Full history – 14/30 days & season maximum
✓ Discover filter – warmest first
✓ Nearby – beach, food, parking
✓ Tides for coastal spots
✓ Start tile, widget & Apple Watch
✓ Temperature alerts
✓ Water quality & EU classification
✓ Family Sharing – one subscription for all

Download on the App Store

Pricing varies by country and currency (UK: £3.99/year) – your App Store price applies. Free stays free – forever. Cancel Pro anytime in your App Store settings. Your launch price never goes up.

Questions

Frequently asked

Where do the water temperatures come from?

From 52 official and open sources across 80 countries: BAFU (CH), IZOR (vrtlac.izor.hr), NZ Regional Councils (Hilltop), Kanton St. Gallen (CH), wiewarm.ch (CH), IGKB (Bodensee), GKD Bayern (DE), PEGELONLINE (DE), LANUV NRW (DE), Wasserportal Berlin (DE), Badegewässerkarte Sachsen-Anhalt / LAV (DE), Badegewässer Schleswig-Holstein / Open Data SH (DE), Badegewässer-Atlas Rheinland-Pfalz / LfU, ODGRP (DE), Badegewässer Hamburg / BUE-BUKEA (DE), Badestellen Berlin / LAGeSo (DE), Badestellen Brandenburg / LAVG (DE), Badegewässer NRW / LANUK (DE), Badewasserkarte M-V / LAGuS (DE), SAICA / Confederaciones Hidrográficas (ES), SOCIB — Balearic Islands Coastal Observing and Forecasting System (ES), NLWKN Gewässergüte / pegelonline.nlwkn.niedersachsen.de (DE), DMI oceanObs (DK), Queensland Coastal Data System (AU), ČHMÚ Open Data (CZ), ISPRA — Rete Mareografica Nazionale (IT), LfU Rheinland-Pfalz — Gewässerüberwachungsstationen (DE), Gesundheitsreferat der Landeshauptstadt München (DE), Instituto Hidrográfico (PT), Agentur für Bevölkerungsschutz Südtirol (IT), AGES (AT), Hydrographie Kärnten/OÖ/Salzburg/Tirol/NÖ/Vorarlberg (AT), Rijkswaterstaat (NL), IMGW (PL), ARSO (SI), Hub'Eau (FR), USGS (US), OVF / vizugy.hu (HU), SYKE (FI), SMHI + HaV Badplatsen (SE), Environment Agency (GB), OPW / waterlevel.ie (IE), NVE HydAPI (NO), NOAA NDBC (US), Great Lakes Observing System (US), NOAA CO-OPS (US), Ministère chargé de la Santé / Atlasanté (FR, Licence Ouverte), Eawag/Alplakes lake models, the Open-Meteo marine model, DHMZ (meteo.hr), Chicago Park District — Beach Water Sensors (US) and PacIOOS — Pacific Islands Ocean Observing System (US). Water quality comes from the EEA.

What does BrrChecker cost?

New: you can try Pro free for 7 days first – the yearly subscription only starts afterwards and can be cancelled anytime. BrrChecker is free to use: current water temperatures worldwide, search and 7-day history. BrrChecker Pro ($4.99 per year – about 40 cents a month) unlocks unlimited favorites, full history, all sports, the surroundings map, coastal tides, widget, Apple Watch, alerts and water quality. Cancel anytime in your App Store settings. The $4.99/year launch price stays yours for as long as you subscribe – future increases only affect new customers. With Apple Family Sharing, one subscription covers the whole family.

Which regions are covered?

Over 12,700 measuring points in 80 countries: lakes, rivers and bathing spots across Europe, Mediterranean and Atlantic coasts, the Caribbean, North America's Great Lakes and popular beaches worldwide – from the Algarve to Thailand. The network is currently densest in the Alps and the Netherlands, and it keeps growing.

Does the widget work offline?

The widget shows the last loaded values and refreshes automatically in the background once you're back online.

Check first, then swim.