Rivermouth Surf Forecast and Surf Report

G'day, Rusty here. Rivermouth has a mixed bag over the next couple of weeks, but there are a few windows of clean fun to get excited about. The water temp is sitting at 66°, which is close to the long-term average for the time of year, so nothing out of the ordinary for the wetsuit choice.

We kick off this Saturday the 29th of August with a nice little morning session. It's only 3 ft of SSE swell at a long 12-second period, with a light north wind making it clean and cross-off. The energy is weak (235), but for a beginner-friendly spot that's very consistent, this is a solid, cruisy option. Saturday afternoon sees the swell bumping up to 6 ft from the east, period drops to 10 seconds, and the wind swings light NE, still cross-off. The energy jumps right up to moderate (746), and it’s looking very good.

Sunday the 30th is a write-off with SW wind and rain making a mess of things, so give that a miss. Monday the 31st morning is worth a look, though. We get a glassy 3 ft of east swell with a 10-second period and the energy is weak to moderate (233). It’s small and clean—perfect for a longboard or a quiet paddle.

Now, the real standout later in the window is Thursday the 3rd of September morning. The southerly swell has built to 7 ft, but the period is a short and choppy 7 seconds. The wind drops to zero—totally glassy. The energy is moderate to strong (501). This is going to be a clean, fun morning, but that 7 ft size is heading towards the bigger side, so it’s still fine for most but will push the limits for absolute beginners. The afternoon falls apart with a fresh onshore wind.

Another one to circle is Sunday the 13th of September afternoon. The east swell is holding at 5 ft with a 10-second period, and the wind goes dead calm again—completely glassy. The energy is moderate (532) and conditions are looking very good. This is a promising end to the outlook, but being so far out (two weeks), treat it as a high hopes, not a guarantee.

There are a few days with no real recommendations, particularly from the 4th through the 6th of September when the wind and swell are messy, and again from the 9th onwards where the surf gets either too big or too wind-affected. The 10th of September sees a massive 13 ft east swell, but that's way too big for this break and only for absolute experts.

All in all, Saturday the 29th is the pick of the early period, and Sunday the 13th afternoon is the one to have on your radar for later.
Rusty.

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