Sign inSign up freeRecent catches at Upper Helemano Reservoir
Shared by DepthScout anglers. Exact spots stay private, always.
Fishing Upper Helemano Reservoir: what the data says
23-acre reservoir near Wahiawā. The lake tops out around 30 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. Below is the species-by-species picture, pulled from the same data the map uses.
Largemouth Bass fishing at Upper Helemano Reservoir
In spring, largemouth bass run shallow here, mostly 2 to 10 ft. They move out to 8 to 20 ft in summer and finish the year down in 9 to 30 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 4 ft that scores prime in spring. Best bite is early morning and the evening. Summer baits: a texas-rigged 10" worm or a deep-diving crankbait gets it done.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 10 ft | dawn & dusk | Spinnerbait, Chatterbait |
| Summer | 8 to 20 ft | dawn & dusk | Texas-rigged 10" worm, Deep-diving crankbait |
| Fall | 4 to 15 ft | midday & dawn | Squarebill crankbait (shad), Spinnerbait |
| Winter | 9 to 30 ft | midday | Blade bait, Jigging spoon |
Peacock Bass (Tucunaré) fishing at Upper Helemano Reservoir
In spring, peacock bass (tucunaré) run shallow here, mostly 2 to 12 ft. By summer they slide out to 3 to 15 ft, and by winter most fish are in 6 to 22 ft. Main-lake point is the standout, a point at roughly 8 ft, rated prime for spring peacock bass (tucunaré). In summer the feeding windows fall in midday and early morning.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 2 to 12 ft | midday & dawn | see map |
| Summer | 3 to 15 ft | midday & dawn | see map |
| Fall | 3 to 15 ft | midday & dawn | see map |
| Winter | 6 to 22 ft | midday | see map |
Channel Catfish fishing at Upper Helemano Reservoir
In spring, channel catfish run shallow here, mostly 3 to 12 ft. They move out to 8 to 25 ft in summer and finish the year down in 9 to 30 ft. If you only fish one area, make it Deep basin: a deep basin around 26 ft that scores prime in winter. Best bite is after dark and the evening.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 3 to 12 ft | dusk | |
| Summer | 8 to 25 ft | night & dusk | |
| Fall | 10 to 30 ft | dusk | |
| Winter | 9 to 30 ft | midday |
Bluegill fishing at Upper Helemano Reservoir
In spring, bluegill run shallow here, mostly 1 to 6 ft. They move out to 4 to 15 ft in summer and finish the year down in 10 to 25 ft. Shallow bay flat is the standout, a weed flat at roughly 4 ft, rated prime for spring bluegill. Plan around early morning and the evening in the warm months. Tie on a small sponge spider (fly) or a micro tube jig and you're in the game.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | 1/32 oz jig + micro plastic, Tiny popper (evenings) |
| Summer | 4 to 15 ft | dawn & dusk | Small sponge spider (fly), Micro tube jig |
| Fall | 6 to 18 ft | midday | Micro jig + waxworm, Small spoon tipped |
| Winter | 10 to 25 ft | midday | Tungsten ice jig + plastic, Tiny spoon |
Tilapia fishing at Upper Helemano Reservoir
Start shallow in spring: tilapia sit in 1 to 6 ft that time of year. They move out to 2 to 10 ft in summer and finish the year down in 5 to 18 ft. If you only fish one area, make it Shallow bay flat: a weed flat around 4 ft that scores prime in spring. Plan around midday and early morning in the warm months.
| Season | Depth | Best window | Go-to baits |
|---|---|---|---|
| Spring | 1 to 6 ft | midday & dusk | see map |
| Summer | 2 to 10 ft | midday & dawn | see map |
| Fall | 3 to 12 ft | midday | see map |
| Winter | 5 to 18 ft | midday | see map |
Notable structure
- Deep basin: deep basin, around 26 ft
- Break off the point: drop-off, around 14 ft
- Main-lake point: point, around 8 ft
- Shallow bay flat: weed flat, around 4 ft
- Back-bay flat: weed flat, around 4 ft
Common questions
How deep is Upper Helemano Reservoir?
Upper Helemano Reservoir is about 30 ft at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
What fish are in Upper Helemano Reservoir?
Anglers target largemouth bass, peacock bass (tucunaré), tilapia, bluegill, channel catfish on Upper Helemano Reservoir.
Where is the best fishing spot on Upper Helemano Reservoir?
Shallow bay flat is the top-rated area: a weed flat in about 4 ft of water that rates prime for largemouth bass in spring. Open the map above to see every rated spot for each species and season.
When is the best time to fish Upper Helemano Reservoir?
For largemouth bass, the summer bite is best in early morning and the evening. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
Nearby waters
Lake Wilson (Wahiawā Reservoir) · Kapaia Reservoir · Halenanahu Reservoir · Waita Reservoir · Wailua Reservoir · Crater Reservoir
See how Upper Helemano Reservoir stacks up: best largemouth bass lakes in Hawaii · best peacock bass (tucunaré) lakes in Hawaii · best tilapia lakes in Hawaii · best bluegill lakes in Hawaii
Browse all Hawaii fishing maps or every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.