
Surf Forecasts:
Rat Beach surf forecast from 13 Sep 2026:
- Best quality surf: Sunday 20 Sep, 8AM (local time) - 2ft (0.6m), 18s period, SW swell with glassy winds.
- Most powerful swell: Sunday 20 Sep, 8AM (local time) - 2ft (0.6m), 18s period, SW swell with 255 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 8PM (local time) - 2.5ft (0.7m), 10s period with W swell.
Best Forecast Surf Conditions for Rat Beach this week:
The surf forecast for Rat Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 13) at 8PM. The primary swell is predicted to be 0.7m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Rat Beach in the next 16 days are 0.6m 18s and forecast to arrive on Sunday (Sep 20) at 8AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 17s period and expected on Wednesday (Sep 16) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 13th Sep) | 2.5ft (0.7m) 10s |
| Best Surf | 8AM (Sun 20th Sep) | 2ft (0.6m) 18s |
| Most Powerful | 8AM (Sun 20th Sep) | 2ft (0.6m) 18s |
Table - best surf conditions forecast for Rat Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cookin’ for Rat Beach over the next couple of weeks. It’s a bit of a slow burner, so don’t go gettin’ too excited just yet.
Right off the bat, the water temp is sittin’ at a balmy 73°, which is a whopping 8° warmer than usual for this time of year. That’s some seriously unusual tropical-feeling water, so you’ll be comfy in a shorty or maybe even just boardshorts.
We’ve got a real quiet spell to start. The surf is tiny and the conditions are pretty ordinary for the first week, with only a few small, rideable windows. Sunday the 13th has a tiny 1 ft SW groundswell with a very long 13-second period, but it’s only got weak energy (158) and the wind is a cross-offshore. It’s surfable, but you won’t be writing home about it. Monday the 14th morning looks a bit better with a clean 2 ft W windswell, period a short 7 seconds, and a solid offshore wind from the SE. Still, it’s not much to write home about.
Things are pretty flat and choppy through the middle of the week. There’s a real gap of poor surf from Tuesday afternoon right through to the end of Saturday the 19th. The swell bumps up a little, but the winds swing onshore and ruin any chance of quality. It’s a write-off for a few days there.
Now, if you can hold out, there’s a couple of windows that look like the real deal. The standout period is around the 20th and 21st of September. Sunday the 20th morning is the pick of the bunch – we’ve got 2 ft of clean SW swell (18-second period) with glassy conditions. The combined energy is moderate at 302. It’s not big, but it’ll be clean, and that’s a rare treat for Rat Beach. The following morning, Monday the 21st, is also a ripper: 3 ft SW groundswell with a 17-second period, combined energy of 386, and a clean offshore wind from the SE. That’s the best wave size and best conditions of the whole forecast.
After that little peak, the surf backs off again through the second week, with a lot of onshore wind and small, messy waves. There’s a few cleaner windows like Tuesday the 22nd and Wednesday the 23rd mornings with light winds, but the swell is dropping back to 2 ft.
So, the honest truth? This is an inconsistent spot and the forecast reflects that. The first week is mostly a dud. The standout is definitely the Sunday 20th morning glass-off and the Monday 21st morning offshore session. For a spot that’s often blown out or too small, those two mornings are the ones to circle. Keep an eye on it, because forecasts can change, but for now, that’s your best bet.
Stay wet, Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Sun afternoon, min 19°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Fri afternoon, min 18°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
AM | PM | 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) | SW 19 | SW 19 | W 8 | SW 18 | SW 18 | SW 17 | SW 16 | W 9 | SW 16 | WSW 6 | SW 15 | SW 14 | SW 21 | SW 14 | W 4 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 |
Wave Graph | |||||||||||||||||||||
63 | 58 | 207 | 51 | 108 | 106 | 90 | 39 | 39 | 10 | 37 | 32 | 71 | 32 | 5 | 184 | 184 | 131 | 199 | 252 | 199 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | off | off | cross-off | off | off | cross-off | off | cross-off | cross | cross | cross | cross-on | cross-on | cross-off | cross-on | glassy | cross | cross-on | cross-on |
High Tide | 11:06AM2.08m | 11:41PM1.67m | 11:34AM2.05m | 00:31AM1.48m | 12:04PM1.98m | 1:39AM1.31m | 12:38PM1.89m | 4:30AM1.23m | 1:26PM1.80m | 2:47PM1.73m | 8:19AM1.44m | 4:29PM1.73m | |||||||||
Low Tide | 5:38PM0.51m | 5:14AM0.81m | 6:26PM0.56m | 5:34AM0.98m | 7:22PM0.64m | 5:47AM1.12m | 8:36PM0.71m | 10:17PM0.72m | 11:43PM0.65m | 10:16AM1.43m | 00:37AM0.56m | ||||||||||
6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | |
— | 7:01 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:54 | — | — | 6:53 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 19 | 20 | 19 | 20 | 21 | 21 | 20 | 21 | 21 |
Feels °C | 22 | 23 | 23 | 21 | 22 | 23 | 21 | 20 | 21 | 20 | 20 | 20 | 20 | 19 | 18 | 21 | 20 | 20 | 22 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | W 6 | SW 13 | W 8 | W 7 | W 7 | W 6 | W 6 | W 9 | W 6 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | S 12 | SSW 15 | SW 19 | SW 19 | W 6 | W 6 | SW 18 | W 6 |
37 | 45 | 207 | 51 | 32 | 20 | 18 | 39 | 11 | 200 | 59 | 86 | 144 | 44 | 121 | 184 | 184 | 42 | 35 | 252 | 50 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | W 8 | SW 13 | W 10 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | WSW 6 | SW 15 | SW 14 | SW 21 | SSW 15 | W 4 | W 5 | SSW 14 | SW 19 | SW 18 | SSW 13 | SW 18 |
63 | 13 | 44 | 31 | 108 | 106 | 90 | 64 | 39 | 10 | 37 | 32 | 71 | 74 | 5 | 13 | 61 | 131 | 199 | 33 | 199 | |
Swell 3 Height (m) Direction Period (s) | SW 19 | SW 19 | SW 19 | SW 18 | W 10 | W 9 | W 9 | SSW 20 | SSW 19 | S 9 | WSW 5 | W 5 | S 12 | SW 14 | SW 21 | SSW 14 | S 11 | SSW 13 | SSW 13 | S 10 | SSW 12 |
58 | 58 | 57 | 48 | 29 | 14 | 14 | 75 | 35 | 7 | 6 | 5 | 26 | 32 | 110 | 69 | 21 | 59 | 58 | 8 | 29 | |
Wind waves Height (m) Direction Period (s) | — | W 6 | — | SE 2 | SSE 2 | SSE 2 | SE 3 | — | — | — | — | — | — | W 2 | — | — | W 5 | W 6 | — | W 6 | — |
— | 19 | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | 1 | — | — | 14 | 71 | — | 32 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 166 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 166 | 17 | 166 | 41 | 11 | 0 | 41 | 0 | 149 | 41 | 16 |
Best forecast wave conditions in Los Angeles County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Rat Beach Surf forecast
The above surf forecast table for Rat Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rat Beach can be found by selecting the local surf guide option on the grey menu. Our Rat Beach 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 (Rat Beach) 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 Rat Beach 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.
Rat Shit is 5 km (3 miles) from Redondo Beach. If you plan a vacation in Los Angeles County, look for hotels and other accommodation in Redondo Beach. Redondo Beach has rooms for a wide range of budgets as well as car hire and transport links.










