Now covering 112 lakes, too
Know the water
before you’re in it.
Tidepool puts tide height, swell, water temperature and this morning’s bacteria sampling for your beach on one screen, and texts your swim buddy if you don’t check out.
Cove Rock · North Beach
Rising, 1.42 m
Water
17.4°
+0.6 since Sun
Swell
0.9 m
11 s, WSW
Wind
8 km/h
light offshore
Your window: 3:40 – 5:10 pm
Matches 3 of 3 rules · bacteria clear
Next 3 days
Thu
4:30–6:00p
Fri
7:10–8:20a
Sat
Rain advisory
Three taps between you and the water.
Setup takes about two minutes. After that, opening the app is the whole routine.
- 01
Pin your spots
Search 2,300 beaches, breaks and lake entries. Tidepool links each one to its nearest tide gauge and offshore buoy, usually within 6 km.
- 02
Set your rules
Water above 15°, swell under a meter, rising tide, no rain advisory. Tidepool shades the hours that match all of them in green.
- 03
Check in, check out
Tap in at the water’s edge. If you haven’t tapped out by your set time, your buddy gets a text with your last location.
Pelican Point · 6:42 am
1.1 m at 12 s, light offshore, four out. Tidepool called it at 5:30 the night before.
Feature tour
Four screens. Everything you check before a swim.
Cove Rock · North Beach
Rising, 1.42 m
Water
17.4°
+0.6 since Sun
Swell
0.9 m
11 s, WSW
Wind
8 km/h
light offshore
Your window: 3:40 – 5:10 pm
Matches 3 of 3 rules · bacteria clear
Next 3 days
Thu
4:30–6:00p
Fri
7:10–8:20a
Sat
Rain advisory
Swimmers keep it on their home screen.
- 5 star
- 84%
- 4 star
- 10%
- 3 star
- 3%
- 2 star
- 1%
- 1 star
- 2%
Featured in Outdoors & Fitness, May 2026.
“I used to check three websites and a webcam before my 6 am swim. Now I open one app, see green, and go. The water-quality flag after the March storms kept me out of the harbor twice.”
RARosa AlcántaraYear-round ocean swimmer“Crowd estimate is scarily accurate.”
TBTomasz B.Longboarder“I run a Saturday group of 14. Everyone checks in through Tidepool now and I can see who’s still out from the beach. It replaced a whiteboard and a lot of shouting.”
NLNiamh LaceyTriathlete, open-water coach“Lake support is newer and a couple of my spots have no temperature sensor yet, but the buddy timer alone is worth the Plus price.”
JKJae-won KimLake swimmer“We plan rock-pool mornings around the low tide now. My kids think I’m a wizard.”
MPMarcus PellDad of two, beach regular“The 17.4° in the app was 17.4° on my thermometer. That’s the review.”
SOSade OkaforCold-water dipper
High tide is at 4:52 today.
Be there for it.
Free on iPhone and Android. Plus adds buddy check-in, lake sensors and a 10-day forecast for $3.99 a month.