Number Fours Surf Forecast and Surf Reports

(Oahu, USA)

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Number Fours Surf Guide

Number Fours in Oahu is an exposed reef break that has reasonably consistent surf. Summer offers the favoured conditions for surfing. Offshore winds blow from the north. Most of the surf here comes from groundswells and the best swell direction is from the south southeast. A choice of left and right reefs. Good surf at all stages of the tide. When the surf is up, it can get quite busy in the water. Take care of rocks, obstacles, locals and sharks.

Number Fours Spot Info

Type:	Rating:	Reliability:	Todays Sea Temp*:
Reef	4	fairly consistent	25.2°C*ocean temperature recorded from satellite

Surfing Number Fours:

The best conditions reported for surf at Number Fours occur when a South-southeast swell combines with an offshore wind direction from the North.

Hourly Forecast

16 Day Forecast

What's the best time of year to surf Number Fours (for consistent clean waves)?

mayBest Season: summer

The best time of year for surfing Number Fours with consistent clean waves (rideable swell with light / offshore winds) is during Summer and most often the month of May. Clean surfable waves are typically found 31% of the time in May while 30% of the time it tends to be blown out. For the remaining 39% of the time it is considered too small by most surfers but may still be OK for beginners and groms at times.

clean

31%

Surfable waves that hold up well for longer rides in prevailing cross-offshore, offshore or light wind conditions.

blown out

30%

Surfable sized waves that are of poorer quality due to prevailing onshore, cross-onshore or windy conditions (may be preferable for kitesurfing).

too small

39%

Waves usually considered too small for good surf. Some wave-magnet breaks may still work though if conditions are right (on occasion).

Explore Number Fours Location Map

Interactive Number Fours surf break location map. View information about nearby surf breaks, their wave consistency and rating compared to other spots in the region. Current swell conditions from local buoys are shown along with live wind speed and direction from nearby weather stations. Click icons on the map for more detail. The closest passenger airport to Number Fours is Honolulu International Airport (HNL) in Usa Oahu Isl., 10 km (6 miles) away (directly). The second nearest airport to Number Fours is Kaneohe Bay Mcaf Airport (NGF), also in Usa Oahu Isl., 20 km (12 miles) away.

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Please note that some surf spot locations are approximate to protect their exact location while others are not shown at close zoom level.

Number Fours Surf Forecasts:

Hourly Forecast

16 Day Forecast

Todays Surf Summary
Tuesday, 5 May 2026, 07:22 Local Time

m, °C	Tuesday 05
ft, °F	5AM	8AM	11AM	2PM
Wave (m)	E	E	E	E
Period (s)	6	7	7	7
Wind (km/h)
Wind State	cross- off	glass	on	cross- on

Tides at Number Fours

Current tide and informaton

For Honolulu, Oahu (Hawaii), 5 km from Number Fours.

Next High Water: 07:00pm | 0.55m

Next Low Water: 10:51am | -0.01m

NEXT	IS AT (local time)	remaining
high tide
low tide

Number Fours Sea Temperature

Very warm in and out of the water temperature at Number Fours today, but forecast to be overcast. With sea temperatures of 25.2 °C and a wind chill of 24.0 °C, most surfers will choose a shorty, boardshorts or a summer suit.

Today, many surfers would wear a shorty.

Current Temp*: 25.2°C*ocean temperature recorded from satellite