The Dive Bell · Bell No. 10 · Hawaii

Kona dive conditions

As of Tuesday 4:00pm, the best window this week is Mon dawn, 9.5 of 10 - excellent. In by 6:02am at Two Step (Honaunau).

Sat dusk is perfect - the bell is ringing. The bell is ringing for Sat dusk.

Right now

Water
81F
by satellite · the bell wants 62F or warmer
Buoy, right now
9.8 ft @ 9.0 s
from 99° · 30 min ago
Tide
0.9 ft rising
high 0.9 at 4:21pm
Satellite clarity
clear
Kd490 0.031, 15 days old · a witness, not a forecast
Dry spell
72 h+
the gate wants 72 hours without rain
Plankton
blue
chlorophyll 0.0 mg/m³ by satellite · green water is plankton
Moon
new · 2%
full in 14 days · new in 28

The water index

Mon dawn - this bell's best window this week, scored on its own water.

ROUGHMARGINALWORKABLEGOODEXCELLENT9.5

The week, scored

Each window is scored 1 to 10 for this water alone; 7 is worth the drive. The bell rings only when every condition aligns and holds across two readings.

Wed dawn8.0
swell 2.3 ft @ 11.7 s from 194° · wind 5.3 kn · tide 2.4 ft ↓ · cloud 26% · first light 5:59am · sun up 6:29am
held back by stirred-up water · Kahalu'u
Wed dusk8.1
swell 2.7 ft @ 11.6 s from 189° · wind 2.1 kn · tide 0.7 ft ↑ · cloud 5% · sun down 5:45pm
held back by stirred-up water · Two Step (Honaunau)
Thu dawn7.7
swell 3.7 ft @ 12.8 s from 307° · wind 2.9 kn · tide 2.4 ft ↓ · cloud 19% · first light 6:00am · sun up 6:30am
held back by stirred-up water · Kahalu'u
Thu dusk6.9
swell 3.9 ft @ 12.5 s from 295° · wind 0.8 kn · tide 0.6 ft ↑ · cloud 7% · sun down 5:45pm
held back by stirred-up water · Two Step (Honaunau)
Fri dawn6.8
swell 3.5 ft @ 11.2 s from 297° · wind 0.8 kn · tide 2.3 ft ↑ · cloud 25% · first light 6:00am · sun up 6:30am
held back by stirred-up water · Kahalu'u
Fri dusk7.2
swell 2.9 ft @ 10.5 s from 296° · wind 1.0 kn · tide 0.5 ft ↑ · cloud 32% · sun down 5:45pm
held back by stirred-up water · Two Step (Honaunau)
Sat dawn8.1
swell 2.1 ft @ 9.9 s from 300° · wind 0.8 kn · tide 2.0 ft ↑ · cloud 46% · first light 6:01am · sun up 6:31am
held back by stirred-up water · Kahalu'u
Sat dusk8.7
swell 1.8 ft @ 10.0 s from 301° · wind 0.5 kn · tide 0.5 ft ↑ · cloud 6% · sun down 5:44pm
held back by all clear · Two Step (Honaunau) RINGING
Sun dawn8.9
swell 1.6 ft @ 10.3 s from 180° · wind 0.7 kn · tide 1.8 ft ↑ · cloud 45% · first light 6:01am · sun up 6:31am
held back by all clear · Kahalu'u
Sun dusk9.3
swell 1.3 ft @ 13.0 s from 286° · wind 0.7 kn · tide 0.4 ft ↓ · cloud 23% · sun down 5:44pm
held back by all clear · Two Step (Honaunau) RINGING
Mon dawn9.5
swell 1.6 ft @ 10.9 s from 327° · wind 1.1 kn · tide 1.5 ft ↑ · cloud 5% · first light 6:02am · sun up 6:32am
held back by all clear · Two Step (Honaunau) RINGING
Mon dusk9.5
swell 1.6 ft @ 10.5 s from 326° · wind 1.0 kn · tide 0.5 ft ↓ · cloud 20% · sun down 5:44pm
held back by all clear · Two Step (Honaunau) RINGING
Tue dawn8.4
swell 2.1 ft @ 10.7 s from 183° · wind 1.3 kn · tide 1.2 ft ↑ · cloud 87% · first light 6:02am · sun up 6:32am
held back by grey skies · Two Step (Honaunau)
Tue dusk8.5
swell 2.2 ft @ 10.7 s from 182° · wind 0.9 kn · tide 0.5 ft ↓ · cloud 82% · sun down 5:44pm
held back by all clear · Two Step (Honaunau)

Lights, left to right: flat · glass · dry · sun · warm. All five, held across two readings, and the bell rings.

The tide

Three days, from the same predictions the forecast reads. Shaded: the dawn and dusk windows.

WedThuFri0.9 4pm0.0 9pm2.5 5am0.4 12pm0.8 4pm0.1 10pm2.4 5am0.4 1pm0.7 5pm0.2 10pm2.3 6am0.4 2pmnow3 ft0 ft

Water temperature

The weather model's sea-surface temperature: four days past, three ahead (dotted), today marked. Where a pier or NOAA station measures the water, that reading is the card under Right now.

Fri82FSatSunMonTue82FWedThuFri81F

The water, mapped

Gold: the coves the bell names this week. Filled: placed where USGS place names and OpenStreetMap agree; hollow: one source. Blue: the instruments this bell reads, with their distance. The arrow: the week's best swell, arriving from its direction.

The coves

The instruments

buoy 51003, tide station 1617433, water 81F now (the bell wants 62F or warmer).

When it rings: the leeward mornings, when the island keeps the trades off the water. In its casting against years of this water, 23% of mornings reached 7. Rings since casting: 0.

Join this bell
Text KONA to 833-858-2355

You get a text the rare morning this water is perfect, and the week's forecast every Wednesday. Text BELL ONLY for the ring alone, FORECAST for the week any time. Msg&data rates may apply. Reply STOP to leave.

The ledger

0 rings - 1 taken back before the morning.

RangWindowCovePromisedThe morningVerdictDivers reported
November 5, 2026duskTwo Step (Honaunau)8.5 · 2.8 ft @ 13.5 s · 0.5 kn · buoy ~3.1 ft · 81Fbuoy 9.8 ft @ 16.0 s, wind 1.9 kn (modeled), dry, cloud 40% (modeled)taken backno word back yet

A diary until five rings; a score after. Every bell's record →