United States
San Nicholas Island
15–20 mMax Depth
boatEntry
25Species
Conditions Summary
Model forecast · local time (GMT-7)
Model conditions signal71/100
Waves
2.0 m
10.2 s
Swell
1.5 m
9.3 s
Current speed
0.5 km/h
flowing toward SE
Water temperature
21.3°C
Wind
19.6 km/h
→ NW
Sea level
0.5 m
falling
WavesChallenging
SwellWatch
Current speedCalm
Forecast Overview
Mon, Oct 19Challenging
Waves2.0–2.1 mCurrent speed0.9 km/h maxWater temperature21.2°C
Tue, Oct 20Challenging
Waves1.4–2.0 mCurrent speed1.1 km/h maxWater temperature21.1°C
TodayChallenging
Waves1.4–1.6 mCurrent speed1.1 km/h maxWater temperature21.0°C
TomorrowChallenging
Waves1.4–1.5 mCurrent speed0.8 km/h maxWater temperature20.9°C
Next 72 hours
Catalog depth15–20 m
Data sources & field guideOpen-Meteo Marine + Weather APIs
Planning context, not a safety guarantee. Coastal model accuracy is limited. Confirm the actual briefing, entry, exit, and suitability with a local operator.
Open-Meteo Marine + Weather APIs →Dive readiness
Collecting the latest marine conditions and forecast signals.
Seasons · water temperature
12-month outlook
Best window
Not available
Peak month
Aug 18.3°
Jan14.2°
Feb14.2°
Mar14.2°
Apr14.1°
May14.8°
Jun16.0°
Jul17.6°
Aug18.3°
Sep18.2°
Oct17.6°
Nov16.4°
Dec14.8°
Current: mild
Typical visibility: 20 m
Historical planning data from the recorded site profile. Water temperature and conditions can vary by day, depth, and weather; confirm current conditions with a local operator.
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Dive Types
salt Waterintermediate Difficulty
Questions to ask a local operator
- What are today's current, visibility, entry, and exit conditions?
- Does the planned route stay within my certification and recent experience?
- Are there local permits, conservation rules, or equipment requirements?
Common Species
Mcpeak anemone
Urticina mcpeaki
DeepLog3
Northern elephant seal
Mirounga angustirostris
DeepLog2
Orange stony coral
Balanophyllia elegans
DeepLog2
Black tegula
Tegula funebralis
DeepLog1
Bocaccio rockfish
Sebastes paucispinis
DeepLog1
Christmas tree worm
Spirobranchus spinosus
DeepLog1
Crested goby
Rhinogobiops nicholsii
DeepLog1
Egg yolk jelly
Phacellophora camtschatica
DeepLog1
Giant rock-scallop
Crassadoma gigantea
DeepLog1
Giant spined star
Pisaster giganteus
DeepLog1
Kelp bass
Paralabrax clathratus
DeepLog1
Lissothuria nutriens
DeepLog1
These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.
DeepLog + OBIS →Photos
