Yokohama Bay, Oahu: dive & snorkel conditions
Yokohama Bay, Tuesday, November 3: visibility Good, 15–25 ft (4.5–7.5 m), and Go from shore (73/100) to dive or snorkel, best 06:00–09:00 HST.
Updated ; the forecast refreshes every 6 hours. Confidence 91%.
Open Yokohama Bay in the appNo Hawaii DOH Brown Water Advisory near Yokohama Bay today.
Today by how you get in
Shore
✓ Go 73
Surf ~1 ft · wind 6 kt · current 0.4 kt
Best 06:00–09:00 HST
Nearshore reef
Kayak
– Caution 35
Gusts 21 kt
Best 06:00–18:00 HST
Blue water (300 ft+) 2.0 km out
Boat
✓ Go 71
Seas ~6 ft · wind 8 kt · current 0.5 kt
Best 06:00–15:00 HST
Blue water (300 ft+) 2.0 km out
Next 7 days at Yokohama Bay
| Day | Divability | Visibility | Wind | Swell | Confidence |
|---|---|---|---|---|---|
| ✓ Go 73 from shore | Good 15–25 ft | 9 kt ENE | 6.2 ft @ 11s | 91% | |
| ✓ Go 70 by boat | Good 15–25 ft | 9 kt ENE | 4.6 ft @ 10s | 91% | |
| ✓ Go 70 from shore | Good 15–25 ft | 9 kt ENE | 5.6 ft @ 13s | 86% | |
| – Caution 38 from shore | Good 15–25 ft | 10 kt ENE | 5.9 ft @ 13s | 82% | |
| – Caution 35 from shore | Good 15–25 ft | 13 kt NE | 5.2 ft @ 10s | 75% | |
| ✓ Go 73 by boat | Excellent 25–60 ft | 10 kt NE | 5.2 ft @ 11s | 68% | |
| ✓ Go 74 by boat | Excellent 25–60 ft | 10 kt ENE | 5.2 ft @ 11s | 61% |
About Yokohama Bay
- Yokohama Bay faces west (280°): swell from that side arrives head-on.
- Swim or kayak in from shore, or go by boat from Waianae Small Boat Harbor.
- Water 100 ft (30 m) deep starts about 1.6 km out.
- Blue water (300 ft / 100 m and deeper) is about 2.0 km out.
What spoils the visibility here
- North and northwest swells, mostly October to April, hit it head-on and stir up the bottom.
- It is sheltered from the usual trade winds; Kona (southerly) winds and swells are its weak spot.
- Heavy rain sends brown runoff into the water for a few days; Hawaii DOH posts Brown Water Advisories when it does.
Questions about Yokohama Bay
- Is it good to snorkel or dive at Yokohama Bay today?
- On Tuesday, November 3 DiveVis rates Yokohama Bay Go from shore (73/100). Conditions look good.
- What is the water visibility at Yokohama Bay today?
- Good, 15–25 ft (4.5–7.5 m) expected on Tuesday, November 3, with 91% confidence. It is an estimate from wind, swell, rain, runoff and ocean conditions, not a measurement.
- What's the best time to get in the water at Yokohama Bay today?
- Between 06:00 and 09:00 HST on Tuesday, November 3, from shore.
- How do you get in the water at Yokohama Bay?
- Swim or kayak in from shore, or go by boat from Waianae Small Boat Harbor.
Other Oahu spots today
- Ewa Beach · Go
- Electric Beach (Kahe Point) · Go
- Makaha · Go
- Magic Island · Go
- Portlock · Caution
- Sandy Beach · Caution
- Kawela · Caution
- Makapuu Point · Caution
Estimates from wind, swell, rain, runoff, tides and ocean conditions; check conditions on site before going in. How the forecast works.