Surf Forecasts:
Banzai Pipeline and Backdoor surf forecast from 27 Jul 2026:
- Most powerful swell: Monday 27 Jul, 5PM (local time) - 5.5ft (1.7m), 7s period, NE swell with 303 kJ wave energy.
Best Forecast Surf Conditions for Banzai Pipeline and Backdoor this week:
The most powerful waves expected at Banzai Pipeline and Backdoor in the next 16 days are 1.7m 7s and forecast to arrive on Monday (Jul 27) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 11s period and expected on Wednesday (Jul 29) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Mon 27th Jul) | 5.5ft (1.7m) 7s |
Table - best surf conditions forecast for Banzai Pipeline and Backdoor over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's on the table for the North Shore, specifically the Banzai Pipeline and Backdoor.
Honestly, gang, this is a tough one to call. The whole 16-day window is looking like a real flat spell. We've got a solid run of "poor surf conditions" from the start, right through to the end of the second week. It's a grim stretch, with the first few days showing a mix of weak, short-period windswell, mostly from the NE and NNE, with cross-offshore winds. Not the kind of juice that gets Pipeline moving.
The water temperature is about average for this time of year, so no worries there for a quick dip.
The only real flicker of life comes right at the end of the forecast. On the 8th and 9th of August, we start to see a little more energy in the water. The combined energy climbs to 123 and 131 (moderate wave energy), with a long-period, 15 second groundswell coming from the WNW. That's a promising direction for the spot, but the swell height is still tiny, only 1ft to 2ft. It's not going to be a classic Pipeline day, but for a reef break, that long period will try to wrap in. The winds are cross-offshore from the E and ENE, which will keep it clean.
This is the only real standout in the whole forecast, and it's a long way out. It's not a beginner wave, but for a surfer who knows the lineup, it's something to keep an eye on. The crowds are often a problem here, so if the swell does materialize, expect it to be busy.
So, to be straight with you: the next two weeks are mostly a blank. The 8th and 9th of August offer a glimmer of hope with a clean, long-period groundswell, but it's going to be small. That's the best we've got.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Mon night. Warm (max 27°C on Tue afternoon, min 24°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Thu afternoon, min 25°C on Wed night). Winds increasing (light winds from the S on Wed night, fresh winds from the ENE by Sat morning). | ||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | E 15 | NE 7 | NE 7 | NNE 7 | NNE 7 | NNE 6 | NNE 8 | SW 15 | SW 20 | N 10 | SW 18 | N 9 | N 9 | N 8 | N 8 | N 8 | N 8 | N 11 | N 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 0 | 301 | 303 | 170 | 175 | 118 | 191 | 8 | 15 | 2 | 49 | 15 | 14 | 22 | 12 | 11 | 5 | 2 | 17 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | on | cross | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 00:03AM0.33m | 2:41PM0.76m | 00:53AM0.35m | 3:06PM0.77m | 1:35AM0.37m | 3:30PM0.77m | 2:18AM0.39m | 3:52PM0.75m | 3:02AM0.41m | 4:11PM0.72m | 3:50AM0.42m | 4:28PM0.68m | 4:45AM0.44m | ||||||
Low Tide | 9:55PM0.32m | 6:43AM0.06m | 9:58PM0.32m | 7:19AM0.04m | 10:09PM0.31m | 7:52AM0.05m | 10:24PM0.30m | 8:24AM0.07m | 10:40PM0.28m | 8:56AM0.11m | 10:57PM0.26m | 9:28AM0.18m | 11:17PM0.23m | ||||||
 |  | |  |  |  | | | |  | | | | | | | | | | |
 | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — |
 | 7:14 | — | 7:14 | — | — | 7:13 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — |
mm | — | — | — | 3 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 26 | 25 | 26 | 27 | 25 | 27 | 27 | 26 | 27 | 28 | 26 | 27 | 27 | 25 | 26 | 26 | 24 |
Feels °C | 24 | 25 | 25 | 25 | 27 | 28 | 26 | 30 | 30 | 29 | 28 | 29 | 27 | 26 | 26 | 24 | 23 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | E 15 | E 14 | E 13 | E 13 | E 13 | E 13 | ENE 11 | ENE 10 | ENE 9 | SSW 13 | SW 18 | SW 18 | E 16 | E 15 | E 15 | E 15 | E 15 | E 15 | E 14 |
| kJ | 706 | 640 | 792 | 1412 | 1632 | 2052 | 1626 | 1196 | 688 | 35 | 49 | 79 | 82 | 161 | 208 | 208 | 271 | 267 | 334 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 14 | NNE 10 | SSW 14 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 19 | SSW 13 | SSW 13 | SW 16 | SW 16 | SSW 15 | SW 15 | SW 14 | SW 14 | SW 14 |
| kJ | 49 | 42 | 41 | 60 | 36 | 35 | 36 | 36 | 38 | 37 | 34 | 34 | 68 | 65 | 93 | 56 | 50 | 47 | 49 |
Swell 3 Height (m) Direction Period (s) | — | S 10 | S 11 | SSW 14 | — | — | S 16 | SW 15 | SW 20 | N 10 | N 9 | N 9 | N 9 | N 8 | N 8 | N 8 | N 8 | N 11 | N 10 |
| kJ | — | 2 | 2 | 40 | — | — | 20 | 8 | 15 | 2 | 7 | 15 | 14 | 22 | 12 | 11 | 5 | 2 | 17 |
Wind waves Height (m) Direction Period (s) | ENE 7 | NE 7 | NE 7 | NNE 7 | NNE 7 | NNE 6 | NNE 8 | — | S 4 | ENE 8 | E 8 | E 8 | E 7 | E 8 | E 7 | E 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 329 | 301 | 303 | 170 | 175 | 118 | 191 | — | 2 | 448 | 324 | 308 | 381 | 470 | 439 | 670 | 871 | 871 | 889 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 22 | 22 | 28 | 22 | 26 | 31 | 15 | 14 | 14 | 2 | 0 | 22 | 22 | 22 | 26 | 165 | 170 | 168 | 25 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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Information about the Banzai Pipeline and Backdoor Surf forecast
The above surf forecast table for Banzai Pipeline and Backdoor provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Banzai Pipeline and Backdoor can be found by selecting the local surf guide option on the grey menu. Our Banzai Pipeline and Backdoor surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Banzai Pipeline and Backdoor) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Banzai Pipeline and Backdoor may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Banzai Pipeline and Backdoor is 17 km (11 miles) from Wahiawa. If you plan a vacation in Oahu, look for hotels and other accommodation in Wahiawa. Wahiawa has rooms for a wide range of budgets as well as car hire and transport links.
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