The Dive Bell · Bell No. 3 · Southern California

La Jolla dive conditions

As of Tuesday 6:00pm, the best window this week is Thu dusk, 6.2 of 10 - marginal, held back by swell.

A quiet week. Last rang October 26, 2026 - 15 days ago.

Right now

Water, measured
76F
Scripps Pier (NOAA), 2.3 km away, this hour · the bell wants 62F or warmer
Turbidity, measured
18.1 NTU · very high
particles in the water at Scripps Pier, 2.4 km away, this hour · the day's median 0.8 · a measurement, not a visibility promise
Wind, measured
2 kn
Scripps Pier (NOAA), 2.3 km away, this hour · the glass line is 7 kn
Wind vs model
-0.9 kn
measured lighter than modeled at dawn, 73 hours compared at Scripps Pier (NOAA) · watched, not yet applied
Buoy, right now
3.3 ft @ 13.0 s
from 296° · 54 min ago
Tide
0.5 ft rising
high 3.5 at 10:26pm
Satellite clarity
hazy
Kd490 0.089, 14 days old · a witness, not a forecast
Dry spell
72 h+
the gate wants 72 hours without rain
Plankton
blue
chlorophyll 0.6 mg/m³ by satellite · green water is plankton
Plankton, measured
blue
chlorophyll 0.5 ug/L at Scripps Pier · green water is plankton
Buoy vs model
1.00x
the buoy and the model agree this week
Moon
new · 2%
full in 14 days · new in 28

The water index

Thu dusk - this bell's best window this week, scored on its own water.

ROUGHMARGINALWORKABLEGOODEXCELLENT6.2

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 dawn5.4
swell 1.9 ft @ 9.1 s from 273° · wind 1.0 kn · tide 4.1 ft ↑ · cloud 0% · first light 5:45am · sun up 6:15am
held back by swell · La Jolla Cove
Wed dusk5.4
swell 1.8 ft @ 9.6 s from 272° · wind 7.8 kn · tide 0.5 ft ↓ · cloud 14% · sun down 4:49pm
held back by swell · La Jolla Cove
Thu dawn5.6
swell 1.7 ft @ 9.1 s from 276° · wind 2.5 kn · tide 3.7 ft ↑ · cloud 43% · first light 5:46am · sun up 6:16am
held back by swell · La Jolla Cove
Thu dusk6.2
swell 1.5 ft @ 9.3 s from 268° · wind 7.5 kn · tide 1.3 ft ↓ · cloud 27% · sun down 4:49pm
held back by swell · La Jolla Cove
Fri dawn4.9
swell 2.1 ft @ 11.4 s from 278° · wind 9.5 kn · tide 3.5 ft ↑ · cloud 93% · first light 5:47am · sun up 6:17am
held back by swell · La Jolla Cove
Fri dusk2.5
swell 2.5 ft @ 9.6 s from 272° · wind 10.1 kn · tide 2.1 ft ↓ · cloud 84% · sun down 4:48pm
held back by swell · La Jolla Cove
Sat dawn1.0
swell 3.1 ft @ 8.8 s from 264° · wind 11.7 kn · tide 3.4 ft ↑ · cloud 100% · first light 5:48am · sun up 6:18am
held back by swell · La Jolla Cove
Sat dusk1.0
swell 2.8 ft @ 12.7 s from 292° · wind 11.7 kn · tide 2.8 ft ↓ · cloud 88% · sun down 4:48pm
held back by rain · La Jolla Cove
Sun dawn2.2
swell 2.6 ft @ 10.2 s from 260° · wind 2.1 kn · tide 3.4 ft ↑ · cloud 100% · first light 5:49am · sun up 6:19am
held back by rain · La Jolla Cove
Sun dusk2.4
swell 2.3 ft @ 9.7 s from 262° · wind 7.0 kn · tide 3.3 ft ↓ · cloud 100% · sun down 4:47pm
held back by rain · La Jolla Cove
Mon dawn3.8
swell 1.7 ft @ 10.5 s from 282° · wind 1.8 kn · tide 3.4 ft ↓ · cloud 99% · first light 5:50am · sun up 6:20am
held back by rain · La Jolla Cove
Mon dusk3.8
swell 2.3 ft @ 12.8 s from 290° · wind 8.5 kn · tide 3.7 ft ↓ · cloud 100% · sun down 4:46pm
held back by rain · La Jolla Cove
Tue dawn1.0
swell 3.0 ft @ 6.4 s from 264° · wind 12.2 kn · tide 3.7 ft ↓ · cloud 90% · first light 5:51am · sun up 6:21am
held back by rain · La Jolla Cove
Tue dusk1.0
swell 2.9 ft @ 7.6 s from 275° · wind 10.5 kn · tide 3.8 ft ↓ · cloud 1% · sun down 4:46pm
held back by rain · La Jolla Cove

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.

WedThuFri3.5 10pm2.4 2am5.8 9am-0.2 4pm3.3 11pm2.6 3am5.5 9am0.0 5pm3.2 12am2.8 3am5.2 10amnow6 ft-0 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.

Fri75FSatSunMonTue75FWedThuFri75F

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. Not drawn, because no public source places them: La Jolla Shores (Canyon).

The coves

The instruments

buoy 46254, tide station 9410230, water 76F now (the bell wants 62F or warmer).

When it rings: the cold clear mornings after a north swell fades out. In its casting against years of this water, 23% of mornings reached 7. Rings since casting: 8.

Join this bell
Text JOLLA 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

8 rings - 7 held, 1 broke (88% held).

RangWindowCovePromisedThe morningVerdictDivers reported
October 26, 2026dawnLa Jolla Cove8.4 · 1.2 ft @ 10.4 s · 1.8 kn · 73F · from the logbuoy 1.6 ft @ 5.0 s, wind 2.3 kn (modeled), dry, cloud 1% (modeled)held on glass, dry, sun (flat not read)no word back yet
October 25, 2026dawnLa Jolla Cove8.3 · 1.6 ft @ 12.2 s · 1.9 kn · 74F · from the logbuoy 1.6 ft @ 9.0 s, wind 2.1 kn (modeled), rain 0.34 in/72h, cloud 0% (modeled)broke - dry (flat not read)no word back yet
October 21, 2026dawnLa Jolla Cove9.1 · 1.4 ft @ 11.8 s · 3.9 kn · 73F · from the logbuoy 1.6 ft @ 14.0 s, wind 3.8 kn (modeled), dry, cloud 2% (modeled)held on glass, dry, sun (flat not read)no word back yet
October 18, 2026dawnLa Jolla Cove9.3 · 1.5 ft @ 13.4 s · 2.9 kn · 72F · from the logbuoy 1.6 ft @ 17.0 s, wind 4.3 kn (modeled), rain 0.01 in/72h, cloud 0% (modeled)held on glass, dry, sun (flat not read)no word back yet
October 16, 2026dawnLa Jolla Cove8.7 · 1.5 ft @ 12.4 s · 2.7 kn · 72F · from the logbuoy 1.3 ft @ 14.0 s, wind 4.1 kn (modeled), dry, cloud 0% (modeled)held on glass, dry, sun (flat not read)no word back yet
October 6, 2026dawnLa Jolla Cove8.7 · 1.6 ft @ 10.7 s · 1.7 kn · 74F · from the logbuoy 2.0 ft @ 5.0 s, wind 2.7 kn (modeled), dry, cloud 4% (modeled)held on glass, dry, sun (flat not read)no word back yet
October 5, 2026dawnLa Jolla Cove8.6 · 1.6 ft @ 11.5 s · 4.1 kn · 73F · from the logbuoy 1.3 ft @ 14.0 s, wind 2.8 kn (modeled), dry, cloud 0% (modeled)held on glass, dry, sun (flat not read)no word back yet
October 4, 2026dawnLa Jolla Cove8.4 · 1.8 ft @ 11.8 s · 2.7 kn · 73F · from the logbuoy 1.6 ft @ 10.0 s, wind 4.6 kn (modeled), dry, cloud 0% (modeled)held on glass, dry, sun (flat not read)no word back yet

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