Backdoor break guide

Backdoor Surf Guide

Backdoor in Oahu is an exposed reef break that has reasonably consistent surf, although summer tends to be mostly flat. Offshore winds blow from the southeast. Groundswells more frequent than windswells and the best swell direction is from the northwest. It's often crowded here. Beware of - Rocks.

Backdoor Spot Info

Type:Rating:Reliability:Todays Sea Temp*:
Reef5fairly consistent
24.6°C*ocean temperature recorded from satellite

Surfing Backdoor:

The best conditions reported for surf at Backdoor occur when a Northwest swell combines with an offshore wind direction from the Southeast.

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

januaryBest Season: winter
The best time of year for surfing Backdoor with consistent clean waves (rideable swell with light / offshore winds) is during Winter  and most often the month of January. Clean surfable waves are typically found 45% of the time in January while 36% of the time it tends to be blown out. For the remaining 19% of the time it is considered too small by most surfers but may still be OK for beginners and groms at times.
clean
45%
Surfable waves that hold up well for longer rides in prevailing cross-offshore, offshore or light wind conditions.
blown out
36%
Surfable sized waves that are of poorer quality due to prevailing onshore, cross-onshore or windy conditions (may be preferable for kitesurfing).
too small
19%
Waves usually considered too small for good surf. Some wave-magnet breaks may still work though if conditions are right (on occasion).

Explore Backdoor Location Map

Interactive Backdoor 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 Backdoor is Dillingham Airport (HDH) in Usa Oahu Isl., 19 km (12 miles) away (directly). The second nearest airport to Backdoor is Kaneohe Bay Mcaf Airport (NGF), also in Usa Oahu Isl., 38 km (24 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)
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Please note that some surf spot locations are approximate to protect their exact location while others are not shown at close zoom level.
Backdoor Surf Forecasts:
Todays Surf Summary
Monday, 4 May 2026, 18:50 Local Time
Monday 04Tue
5PM8PM11PM2AM
Wave (m)
1.3
NW
1.4
NW
1.4
NW
1.4
NW
Period (s) 13 12 12 12
Wind (km/h)
20
20
20
20
Wind State cross-
off
cross-
off
cross-
off
cross-
off

Swell History at Backdoor

Surf stats for Backdoor, see the swell variation by month or season on the history page here.

Wind History at Backdoor

Wind stats for Backdoor, see the variation in direction and stength by month or season on the history page here.


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