Submarius
Surf forecast for Oahu
Known for bluewater spearfishing: mahi, wahoo, and yellowfin tuna off the offshore FAD buoys. North Shore surf breaks in winter are a major draw.
Open the app for the swell height, period and direction, the wind and gusts, and the tide for Oahu, HI.
Notable species
Oahu is known for:
What Submarius shows for Oahu
This page reads Oahu at 21.44°N, 158.00°W, in Hawaii. Open the same point in the app for:
- A 0 to 10 rating. For surfing at Oahu today, from Rough to Prime, and you can tap any factor to see why. It doesn't know which way your break faces.
- Best 3 hour window. The three hours in the next 24 that score best.
- Tide. Rising, falling or slack, the next high or low, and a 24 hour curve.
- Wind. Speed and direction, with gusts.
- Swell and waves. Swell height, period and direction, each on its own tile.
- Water temperature. With the air temperature underneath.
- Weather warnings. National Weather Service warnings for this spot and its marine zone.
- 8 day forecast (Pro). Days 2 to 8, hour by hour.
Safety in the water
Every safety tool in Submarius is free. With Safety Watch you set a "back by" time and pick who watches. If you don't check in by then, the server alerts them by push or email, even if your phone is dead. It needs a free account and never contacts the coast guard.
When Spearfishing is your mode, a shark awareness card also lists the shark species recorded in the area and any community sightings from the last 48 hours.
Also at Oahu
Swell, wind, tide, current and a visibility estimate for spearfishing here.
Tides, wind, pressure trend and a 0 to 10 bite score for fishing here.
Swell, wind, tide, water temperature and a visibility estimate for diving here.
More surfing locations
See all →Check Oahu before you head out
Today's conditions, safety tools and trip recording are free. Pro adds the 8 day forecast, the Pro map layers, cam playback and offline areas for $12.99 a month or $99 a year, or $149 once (US prices).