Falcon Dam · Rio Grande · Texas / Tamaulipas (US–Mexico) — updated daily from official gauges
Latest reading
Falcon Lake is 27.8% full as of — surface elevation 265.16 feet, storage 435,009 acre-feet (capacity basis 1,562,367 acre-feet).
That elevation is its highest July reading since 2019, and 30.04 feet above its record low of 235.12 ft (, the lowest since the reservoir first filled), in a daily record going back to August 23, 1953 (TWDB's period of record for this reservoir).
Storage is 52% of the July 24 average across 73 years of record.
Water level change: +2.69 ft over the past week, +1.79 ft over the past month, and +9.29 ft over the past year.
Percent full
27.8%
of 1,562,367 AF
Vs date average
52%
of the Jul 24 storage average since 1953
Elevation
265.16 ft
full pool 301.2 ft
Storage
435,009 AF
+178 KAF vs 1 yr ago
1-week change
+2.69 ft
elevation
1-year change
+9.29 ft
elevation
Falcon Lake vs its record low
In the daily record used by this site (going back to August 23, 1953 (TWDB's period of record for this reservoir)), Falcon Lake's lowest surface elevation since it first filled (first near-full reading 1954) was 235.12 feet on , when storage was 130,036 acre-feet. As of , Falcon Lake is at 265.16 feet — 30.04 feet above that record. The record high in the same series was 309.28 ft on .
Falcon Lake storage in context
Reading
Elevation (ft)
Storage (AF)
% full
Today (July 24, 2026)
265.16
435,009
27.8%
One year ago
255.87
256,744
16.4%
Five years ago
261.56
401,351
25.7%
Record low (February 16, 1957)
235.12
130,036
8.3%
Capacity basis
301.20
1,562,367
100.0%
Falcon Lake water level, past 12 months
Falcon Lake daily surface elevation (feet above sea level), past 12 months. Source: Water Data for Texas (TWDB). Rendered at build time from the official gauge record — no JavaScript.
Falcon Lake elevation, full record
Falcon Lake month-end surface elevation, 1953–2026 — the full daily record fetched from Water Data for Texas (TWDB), one point per month.
Last 14 daily readings
Date
Elevation (ft)
Day change
Storage (AF)
July 24, 2026
265.16
+0.06 ft
435,009
July 23, 2026
265.10
+0.09 ft
433,641
July 22, 2026
265.01
+0.11 ft
431,521
July 21, 2026
264.90
+0.90 ft
428,739
July 20, 2026
264.00
+1.14 ft
407,379
July 19, 2026
262.86
+0.33 ft
381,195
July 18, 2026
262.53
+0.06 ft
378,065
July 17, 2026
262.47
+0.04 ft
376,662
July 16, 2026
262.43
+0.04 ft
375,917
July 15, 2026
262.39
+0.02 ft
374,899
July 14, 2026
262.37
-0.02 ft
374,593
July 13, 2026
262.39
-0.09 ft
375,058
July 12, 2026
262.48
-0.09 ft
376,907
July 11, 2026
262.57
—
379,417
Frequently asked questions
What is the water level of Falcon Lake today?
As of July 24, 2026, Falcon Lake's surface elevation is 265.16 feet, with 435,009 acre-feet in storage — 27.8% of the 1,562,367 acre-foot capacity basis. Source: Water Data for Texas (TWDB) daily data.
How full is Falcon Lake?
Falcon Lake is 27.8% full as of July 24, 2026. Its storage is 52% of the July 24 average across its record since 1953.
Is Falcon Lake rising or falling?
Falcon Lake is rising: its elevation changed +2.69 feet over the week ending July 24, 2026, +1.79 ft over the past month, and +9.29 feet over the past year. Source: Water Data for Texas (TWDB) daily data.
What was Falcon Lake's lowest water level on record?
Falcon Lake's lowest surface elevation since it first filled (its first near-full reading in this series is from 1954) was 235.12 feet on February 16, 1957, per the daily record used by this site. As of July 24, 2026 the reservoir is 30.04 feet above that record low.
About this gauge
Falcon Lake (Falcon International Reservoir) on the Rio Grande below Laredo is operated by the International Boundary and Water Commission and shared by the United States and Mexico.
Data: Texas Water Development Board (Water Data for Texas), daily water level and conservation storage for Falcon Lake. Percent full is conservation storage divided by conservation capacity (1,562,367 acre-feet at the latest reading), matching TWDB's own methodology. Updated daily.