Backdoor 4 Surf Forecast and Surf Report

Alright, let’s get into it. The next couple of weeks here are a bit of a slow burn, to be honest. There’s a lot of small, weak swell on the table, and you’ll need to pick your moments. We’ve got a few windows where it cleans up and shows some promise, but it’s not going to be non-stop perfection. First surf worth getting excited about rolls in on Thursday morning, the 27th. Before that, it’s pretty ordinary – Tuesday and Wednesday are messy with onshore winds and lumpy conditions, not really worth paddling out for.

So, Thursday morning at Backdoor 4 (Oahu) is when things start to turn. The swell from the south brings in 5ft waves with a period of 8 seconds. It’s not huge, but it’s a step up. The wind is offshore from the SSW, which will keep the faces pretty clean. Combined swell energy is moderate at 425. It’s going to be a fun, punchy day for the intermediate crew. This is one of the better windows in the whole run.

Friday morning on the 28th still looks good—glassy conditions with a light NNW wind and about 3ft of south swell. The energy is moderate (223) and it’s going to be clean. That’s a solid choice too if you can’t make Thursday.

Over the weekend, Saturday the 29th has some options. The morning is looking clean with a moderate offshore wind from the south, and 4ft of swell. It might be slightly wind-affected but still surfable. The afternoon looks a touch cleaner with a light cross-offshore breeze and a bit more size at 4ft. That’s a decent call for the afternoon session.

By Sunday the 30th, things start to back off a little. The morning looks glassy with the swell dropping to 3ft. It’s a bit small, but if you’ve got a log, it could be a fun one. The afternoon gets onshore and lumpy, so make the most of the morning.

Looking into the first week of September, the swell really takes a holiday. We’re looking at a lot of sub-3ft surf with poor wind and mostly onshore conditions. There’s a noticeable drop in energy, and the wave quality goes down the drain. Some of this period has longer period south swell, but the size is just too small to be interesting. You’re probably better off doing something else for a few days. The gap of quality surf runs from the 31st all the way through to the 3rd, with very little on offer.

Then on Thursday the 3rd, there’s a glimmer. The afternoon brings a 3ft south swell with a light offshore wind. It’s not much, but it’s clean. And Friday the 4th could be alright—south swell in the 4ft range, but the wind is going to be howling offshore. It’ll be clean, but fresh. Might be a bit wild.

The standout for the whole trip, though, is Saturday the 5th of September. The morning session sees a 3ft south-southeast swell with a 11-second period, and it’s clean. The energy jumps to 579, which is the strongest of the whole forecast. The wind is light and cross-offshore, and the break should be handling it well. The afternoon looks just as good, with 3ft of swell and clean conditions. This is a prime window—good energy, clean conditions, and a longer period swell. This is the one to circle on the calendar. It’s a bit further out, so don’t hold me to it, but it has real potential.

The week after that, the energy fades again and we’re back to small, weak surf with poor wind. The 7th and 8th are looking pretty grim, with tiny waves and onshore breezes. Not much to get excited about there.

So, to sum it up: Thursday the 27th is your first solid option, and the real standout is Saturday the 5th of September. Everything else is either small, windy, or just plain average. Water temp is 64°F, which is right about normal for this time of year, so a spring suit is still the call.

Rusty out.

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