Ewa Beach, Oahu: dive & snorkel conditions
Ewa Beach, Tuesday, November 3: visibility Good, 15–25 ft (4.5–7.5 m), and Go from shore (76/100) to dive or snorkel, best 06:00–11:00 HST.
Updated ; the forecast refreshes every 6 hours. Confidence 91%.
Open Ewa Beach in the appNo Hawaii DOH Brown Water Advisory near Ewa Beach today.
Today by how you get in
Shore
✓ Go 76
Surf ~2 ft · wind 7 kt · current 0.2 kt
Best 06:00–11:00 HST
Nearshore reef
Kayak
– Caution 63
Seas ~5 ft out where you'd dive (NW swell, 10 s)
Best 06:00–18:00 HST
Blue water (300 ft+) 1.3 km out
Boat
✓ Go 77
Seas ~5 ft · wind 7 kt · current 0.2 kt
Best 06:00–18:00 HST
Blue water (300 ft+) 1.3 km out
Next 7 days at Ewa Beach
| Day | Divability | Visibility | Wind | Swell | Confidence |
|---|---|---|---|---|---|
| ✓ Go 76 from shore | Good 15–25 ft | 9 kt ENE | 4.9 ft @ 10s | 91% | |
| ✓ Go 77 by boat | Good 15–25 ft | 11 kt ENE | 3.9 ft @ 8s | 91% | |
| ✓ Go 73 from shore | Good 15–25 ft | 11 kt ENE | 4.9 ft @ 10s | 86% | |
| ✓ Go 73 from shore | Excellent 25–60 ft | 11 kt NE | 5.2 ft @ 10s | 82% | |
| ✓ Go 76 by boat | Good 15–25 ft | 12 kt ENE | 4.9 ft @ 9s | 75% | |
| ✓ Go 76 by boat | Good 15–25 ft | 9 kt ENE | 4.9 ft @ 9s | 68% | |
| ✓ Go 75 by boat | Good 15–25 ft | 11 kt ENE | 4.9 ft @ 9s | 61% |
About Ewa Beach
- Ewa Beach faces south (185°): swell from that side arrives head-on.
- Swim or kayak in from shore, or go by boat from Keehi Small Boat Harbor.
- Water 100 ft (30 m) deep starts about 0.8 km out.
- Blue water (300 ft / 100 m and deeper) is about 1.3 km out.
What spoils the visibility here
- South swells, mostly May to September, reach it.
- 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 Ewa Beach
- Is it good to snorkel or dive at Ewa Beach today?
- On Tuesday, November 3 DiveVis rates Ewa Beach Go from shore (76/100). Conditions look good.
- What is the water visibility at Ewa Beach 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 Ewa Beach today?
- Between 06:00 and 11:00 HST on Tuesday, November 3, from shore.
- How do you get in the water at Ewa Beach?
- Swim or kayak in from shore, or go by boat from Keehi Small Boat Harbor.
Other Oahu spots today
- Yokohama Bay · 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.