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One score, a summary and two tips for Kayak, Raft, SUP, Tube, Swim and Fish — with live NWS alerts for your sport.

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Conditions in Tahoe shift by the hour and every water adventure feels it differently.

Wind

+5.6 mph

stronger wind by the afternoon

6–9am~3.0 mph

1–5pm~8.6 mph

Afternoon gusts can tip kayaks and paddleboards, and carry swimmers on floats away from shore.

Data: South Lake Tahoe Airport (NOAA KTVL), summers 2015–2024. Hazard: NWS Reno, RNLI.

Snowmelt

12°F colder

Water temperature after a big snow season

Avg dry winter61°F

Avg snow winter49°F

Cold water can cause loss in muscle control within seconds.

Data: Upper Truckee River (USGS 10336610), 3 biggest vs 3 driest snow years, 2015–2025. Hazard: NWS.

Flow

4.7× more water

about 3 hours after a dam release

Before release343 cfs

Release peak1,672 cfs

Faster, deeper water can knock waders off their feet.

Data: below Chili Bar Dam (CDEC CBR), release days Jul–Aug 2019–2025.

Time Spent

~16 min

How long the average water adventurer spends checking separate sites for a single spot.

  • NOAA · Wind23008G18KT
  • NWS · AlertLAKE WIND ADV
  • USGS · Water9.4 °C
  • USGS · Flow292 ft³/s
  • EPA · AirAQI 42
  • CDEC · Dam1664 @ 7AM PST

Source: AquaTrails observations of professional water adventurers. Readings shown are examples.

Averages from public monitoring data around Lake Tahoe; any single day can differ.

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What the First Wave gets

Real example from the First Wave

Fish

Donner Lake · Truckee, CA

89Excellent
Water
~59.5°F
est.
Air
80.6°F
NOAA
Wind
5.8 mph
NOAA
Best window
Afternoon

Rainbow trout fishing at Donner Lake looks promising this afternoon! With a water temperature of 59.5 degrees and a steady wind of 5.8 mph, it’s ideal for casting and should provide a good chance of a catch.

Tips for today

  • Bright, clear skies make trout cautious — try a smaller, natural-colored fly and a longer leader.
  • Focus on the west end near West End Beach; the sandy bottom offers good cover for rainbows until sunset.

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Each water adventure requires unique conditions. So we give you a unique score for each.

Real reports from rivers across North Tahoe and Truckee.

Examples from AquaTrails reports. Scores update with most current, available data.

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Built in Reno, NV by a local team · Data from USGS, NOAA, NWS Alerts & EPA