Lake Havasu Water Level Today - 447.05 ft, 90.0% Full

Parker Dam · Colorado River · Arizona / California - updated daily from official gauges

Western Reservoir Conditions·Daily·No. 47·Tuesday, September 8, 2026·Latest reading September 7, 2026

• Lake Havasu is 90.0% full - high on this site's capacity scale - as of September 7, 2026. Surface elevation 447.05 feet, storage 513,484 acre-feet (capacity basis 570,253 acre-feet), per U.S. Bureau of Reclamation gauge data.
• That elevation is its lowest September reading since 2023, and 6.40 feet above its record low of 440.65 ft (August 11, 1950, the lowest since the reservoir first filled), in a daily record going back to November 15, 1938 (Reclamation's period of record for this daily series).
• Storage is 89% of the September 7 average across 83 years of record.
• Lake Havasu is falling: elevation changed -0.49 ft over the past week, -1.30 ft over the past month, and -1.13 ft over the past year, per U.S. Bureau of Reclamation gauge data.

Lake Havasu is holding near the top of its operating range at 90.0% of capacity, -1.13 ft over the past twelve months.

Lake Havasu operating range

Lake Havasu is operated within a narrow band rather than drawn down and refilled over years. As of September 7, 2026 it sits 2.95 feet below its 450.0 ft full-pool reference. Over the past two years the daily record ranges from 445.89 ft (January 20, 2025) to 449.49 ft (November 26, 2025) - a band of 3.60 feet. The highest reading in the full record is 451.00 ft on September 17, 1943.

Storage above the full-pool reference is flood control space, not supply. A reservoir reading at or near 100% of its conservation capacity is being operated normally - it is not a surplus, and the operator may release water to hold that space.

Lake Havasu storage in context

Lake Havasu water level, past 12 months

90.0% full at the latest reading - across the past 12 months it ranged from 87.4% (December 15, 2025) to 104.5% (September 21, 2025). Percent full is storage against the 570,253-acre-foot capacity basis, not a share of the elevation plotted above.

Lake Havasu elevation, full record

90.0% full at the latest reading - across the storage record since October 1, 1938 it ranged from 0.0% (October 8, 1994) to 150.2% (December 2, 1952). Percent full is storage against the 570,253-acre-foot capacity basis, not a share of the elevation plotted above. Every percentage here is measured against today's capacity basis; a reservoir's surveyed capacity changes as sediment accumulates behind the dam, so early-record percentages are indicative rather than exact.

Last 14 daily readings

Frequently asked questions

What is the water level of Lake Havasu today?

As of September 7, 2026, Lake Havasu's surface elevation is 447.05 feet, with 513,484 acre-feet in storage - 90.0% of the 570,253 acre-foot capacity basis. Source: Bureau of Reclamation daily gauge data.

How full is Lake Havasu?

Lake Havasu is 90.0% full as of September 7, 2026. Its storage is 89% of the September 7 average across its record since 1938. Source: Bureau of Reclamation daily gauge data.

When was Lake Havasu last full?

Lake Havasu was last at or above 95% of its 570,253 acre-foot capacity basis on August 17, 2026. As of September 7, 2026 it is 90.0% full. Source: Bureau of Reclamation daily gauge data.

Is Lake Havasu rising or falling?

Lake Havasu is falling: its elevation changed -0.49 feet over the week ending September 7, 2026, -1.30 ft over the past month, and -1.13 feet over the past year. Source: Bureau of Reclamation daily gauge data.

What was Lake Havasu's lowest water level on record?

Lake Havasu's lowest surface elevation since it first filled (its first near-full reading in this series is from 1943) was 440.65 feet on August 11, 1950, per the daily record used by this site. As of September 7, 2026 the reservoir is 6.40 feet above that record low.

About this gauge

Lake Havasu, behind Parker Dam, is the diversion point for the Central Arizona Project and the Colorado River Aqueduct. It is operated within a narrow band and normally stays close to full.

Operator

Bureau of Reclamation (RISE)

Station

Daily series item 6128 (elevation), 6129 (storage)

Measurements

Parker Dam - Reclamation daily reservoir record

Dam

Parker Dam

River

Colorado River

State

Arizona / California

Coordinates

34.2964, -114.1385 (USBR RISE location 3515)

Full pool reference

450.0 ft

Capacity basis

570,253 acre-feet (USBR Lower Colorado River Daily Report)

Period of record

November 15, 1938 (Reclamation's period of record for this daily series)

Status

Provisional - subject to revision by the reporting agency

Update cadence

Daily

Download the daily CSV (date, elevation ft, storage AF) or see all data downloads.

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