HawaiiReservoir
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52.27ft
Down 2.54 ft this week
Sailing
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Kayak and SUP
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Power boating
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Fishing
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Outlook. Monday: NNE wind 2 to 8 kt, gusts to 10 kt, high near 83°F. Tuesday: NE wind 4 to 10 kt, gusts to 14 kt, high near 81°F, 86% chance of rain.
7-day wind forecastLoads when you scroll here
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Last hour of NOAA MRMS radar, 1 km resolution. Map data © OpenStreetMap contributors, OpenMapTiles, OpenFreeMap.
52.27ft (gage datum)
-2.54 ft in 7 days16.12 ft below the October normal
Reading from Oct 25, 2026. Shaded band: range of October averages on record; dashed line is the typical level.
Wahiawa Reservoir (Lake Wilson) was at 52.27 ft on the gage on October 25, falling 2.54 ft over the past week. That is well below normal for October: the typical October level is 68.39 ft, so the lake is 16.12 ft below its usual mark.
Set in Hawaii, Wahiawa Reservoir (Lake Wilson) is a reservoir.
Water level on this page comes from USGS gauge 16210000 (Wahiawa Reservoir at Spillway at Wahiawa, Oahu, HI). Wind, gusts and rain come from the National Weather Service forecast grid that covers the water.
Reservoir levels move with releases and inflow, so ramps and beaches can change week to week. The water level page tracks that day by day.
The go or no-go calls above are a starting point, not a guarantee. Read how we score conditions, and always check local rules and posted warnings before you launch.
The National Weather Service forecast for the lake from October 25: Monday: NNE wind 2 to 8 kt, gusts to 10 kt, high near 83°F. The panel at the top of this page refreshes the current wind, gusts and direction when you open it and turns them into a call for sailing, paddling, power boating and fishing.
Wahiawa Reservoir (Lake Wilson) was at 52.27 ft on the gage on October 25, falling 2.54 ft over the past week. That is well below normal for October: the typical October level is 68.39 ft, so the lake is 16.12 ft below its usual mark.
If Wahiawa Reservoir is blown out, these are the closest alternatives. Tap through for their conditions.