Monabe Rivermouth Surf Forecast and Surf Report

Alright, Rusty here. Let’s have a look at what’s on the table for Monabe Rivermouth.

First up, this spot rarely breaks, so any surf we get is a bit of a gift and might need some patience. The forecast kicks off with very little to write home about Tuesday, September 1st. We’ve got a tiny 2ft easterly windswell with a bit of cross-on breeze – absolute skunk, not worth the paddle.

Things start to stir on Wednesday, September 2nd. Wednesday morning we get some glassy conditions with a 4ft SSE swell and a long period of 13 seconds, giving it a bit of groundswell grunt. The energy is still moderate (379). It’s surfable but ordinary, so it’s more about getting wet than getting good waves.

The first real standout comes Thursday, September 3rd, in the afternoon. The wind goes glassy, and the swell bumps up to 5ft from the SSE with a 10-second period. The combined energy jumps to strong (1013), and the call is for good surf conditions. This is the pick of the first week if you can get out.

Over the weekend, Saturday September 5th morning we see a bigger 10ft ESE swell (8 seconds) with clean cross-offshore wind. The energy is strong (984). But at 10ft, this is expert territory – too big for beginners. Sunday September 6th afternoon also looks solid with a glassy 10ft easterly swell and strong energy (1200).

The absolute standout is Wednesday, September 9th morning. We get a 10ft ESE groundswell with a very long period of 12 seconds. The energy is very strong (2490), the winds are glassy, and the call is for very good surf. That’ll be a proper session, but remember: long-period groundswell can feel a bit wonky and straight at a river mouth, but if it lines up, look out.

Another big one is Thursday, September 10th afternoon: 12ft SE groundswell, 12-second period, glassy wind, and very strong energy (3100). Again, this is big and for experienced surfers only.

Looking further out, Tuesday, September 15th morning shows a massive 13ft ESE swell with a very long 15-second period, and excellent conditions for experienced surfers – energy a massive (6036). That’s huge and clean, but the afternoon turns messy with fresh cross-onshore winds.

In between these days, there are plenty of average to poor sessions, especially with storm risks and cross-shore winds.

Highlight: If you want the cleanest, best combo of size and glass – Thursday, September 10th afternoon at Monabe Rivermouth. That 12ft SE groundswell with 12-second period and glassy wind is going to be pumping and clean. Watch the period – it’s best at this river mouth setup. Crowds are possible, so be ready to share.

Water temps are sitting at a very warm 85°, which is much warmer than normal for this time of year.

That’s the read. Not much early on, but the second half of the first week and into the second week has some proper muscle.

Rusty.

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