States

Trinity Lake

California · Reclamation gauge
2,3102,3202,3302,3402,3502,360
Grey bar: 12-month range 2,314.7–2,357.5 ft.
Water level · NAVD88
2,314.69FT
Storage 1,642,720 acre-feet
The source publishes no % full figure.
7 days −0.65 ft30 days −4.23 ftvs last year −7.58 ft
Reading for Oct 24, 2026 · page refreshed Oct 25, 21:05 UTC
Source: U.S. Bureau of Reclamation (RISE)
Worth going today?This Afternoon
Looks good
Light wind, dry
Wind3 mph
Rain0%
Temp65°F
Level2,314.7 ft
This AfternoonMostly Cloudy · 65°F
SSE 3 mph · rain 0%
TonightPartly Cloudy · 42°F
S 2 to 8 mph · rain 7%
NWS forecast for the gauge location. Good = wind ≤ 10 mph and rain ≤ 30%; storms are flagged. Not safety advice – check local conditions, closures and warnings.

Level history

2,3152,3162,3172,3182,319ftSep 24Oct 2Oct 9Oct 16Oct 24
2,3152,3162,3172,3182,319ftSep 24Oct 9Oct 24
2,3202,3302,3402,3502,360ftOct 2025Jan 2026Apr 2026Jul 2026Oct 2026
2,3202,3302,3402,3502,360ftOct 2025Apr 2026Oct 2026

Field notes

On Oct 24, 2026, Trinity Lake was at 2,314.69 (NAVD88) ft.

Reclamation reports storage of 1,642,720 acre-feet for the same day.

Over the past 7 days the lake has been falling (−0.65 ft), and it is −4.23 ft over 30 days.

Compared with a year ago (2,322.27 ft), the lake is 7.58 ft lower.

Readings come from the Bureau of Reclamation's daily reservoir data for Trinity Lake Dam and Powerplant.

Lake facts

Storage (latest)1,642,720 acre-feet
Gauge / stationTrinity Lake Dam and Powerplant
Elevation datumft (NAVD88)
Gauge location40.8010, -122.7620

Nearby lakes

Lewiston Lake5 mi S1,901.10 ft+0.03 ftWhiskeytown Lake18 mi SE1,206.93 ft−1.77 ftShasta Lake19 mi E974.61 ft−2.30 ftSpring Creek Reservoir19 mi SE731.03 ft+0.74 ftKeswick Reservoir22 mi SE583.25 ft−0.11 ft

Common questions

Is Trinity Lake rising or falling?

Over the last 7 days it changed −0.65 ft and over 30 days −4.23 ft.

How full is Trinity Lake?

Reclamation publishes the water surface elevation for this gauge but not a percent-full figure, so we don't show one rather than estimate it.

How often is this page updated?

The page is rebuilt automatically every day from Reclamation's published data. Values can be revised later by the source agency.

Where does the data come from?

The U.S. Bureau of Reclamation's RISE data portal (data.usbr.gov). Forecasts come from the National Weather Service.

Daily values published by the Bureau of Reclamation. Reclamation data are provisional and subject to revision unless otherwise noted. This page is not affiliated with or endorsed by the Bureau of Reclamation. See data sources.