Black Rocks Jetty Surf Forecast and Surf Report

Right, listen up, this is Rusty, and I’m looking at a solid 16-day window for Black Rocks Jetty. It kicks off on Monday, the 31st of August, straight into the action. Don’t you worry about a slow start, we’ve got waves straight away. The water’s sitting at a touch warmer than normal for this time of year, 76.5°, so a nice surprise.

We start Monday morning with a clean, glassy 4.3ft south swell, period of 12 seconds, and the energy is moderate (497). The wind is a dead calm easterly at 3 mph, making it glassy. This is a proper session. Monday afternoon holds up just as well with another glassy 3.9ft, still from the south, with the energy dropping just a touch (429). This is a very good start.

Tuesday the 1st of September sees a drop in size. Morning is a clean 2.6ft, but the wind is a cross-off, so it’s clean but not perfect. The afternoon gets messy with a cross-on wind, so I’d get out early. Wednesday the 2nd is tiny, with a 1.3ft glassy morning but from the west, so not a lot of push. The energy is weak in the morning (80) and moderate in the afternoon as the wind turns cross-on. Thursday the 3rd is similar, 1.6ft to 2.0ft, just small, clean waves. Friday the 4th is a real mixed bag. The morning is a tiny 1.6ft, but the period jumps to 19 seconds, a proper long-period groundswell, with the energy picking up (303). However, the wind is cross. The afternoon kicks up to 4.3ft from the SSW, with a massive energy jump (1021), but the wind is a messy 9 mph cross-on, so it’s going to be choppy.

Now, this is where it gets good. Saturday the 5th of September is the first real standout. Morning delivers a 5.2ft south swell with a 14-second period, and the energy is strong (1002). The wind is glassy out of the WNW at 3 mph. This is excellent, clean, powerful surf but it’s over 5ft, so it’s pushing into advanced territory. The afternoon stays glassy, dropping to 4.6ft, still very good. Sunday the 6th is another solid day with a clean 3.9ft morning and a glassy 3.0ft afternoon, both with that long period (13-16 seconds). The energy is strong – 740 and 765. This is a great run.

The following week is where the real size comes in. Monday the 7th of September sees a 5.6ft SSW swell in the morning, but the wind is straight onshore, making it a messy prospect. The energy is very strong (1095). The afternoon is the same size with a cross-on wind, not great. Tuesday the 8th is the same story – a big 5.6ft morning with an onshore wind, but look at Tuesday afternoon. The wind goes glassy, the swell drops to a clean 4.9ft from the SW, and the period is 19 seconds. The energy is massive (2884). This is a sensational session for experienced surfers, but the size and power will be a handful. Wednesday the 9th of September is for experts only. The morning sees a massive 9.8ft SW swell, with energy cranked up to 3736. The wind is onshore, so it’s a messy, dangerous beast. The afternoon, however, is a different story. The wind drops to dead calm, glassy, and the swell is a still-chunky 7.9ft from the SW with a 15-second period. The energy is still massive (2490). This is a perfect storm of power and glass, but it is strictly for the experts.

Thursday the 10th eases off into a very good, clean 4.6ft morning and a 3.9ft afternoon with a clean offshore wind. Friday the 11th is another standout. A solid 3.9ft to 4.3ft SSW swell, with a 15 to 16-second period, and a clean, moderate offshore wind from the NNE at 12 to 15 mph. The energy is massive (1201-1244). This is a beautiful setup for a point break.

The second week starts to fade. Saturday the 12th is clean and glassy, with a 3.6ft swell. Sunday the 13th is small and poor in the morning, but the afternoon turns glassy with a 3.0ft. The final days from Monday the 14th to Tuesday the 15th are just small, with some glassy windows but nothing to write home about. The best of the best is the glassy, powerful afternoon of the 8th and the clean, offshore conditions of the 11th. Get on it.

Read more