Surf Forecasts:
Rat Beach surf forecast from 15 Sep 2026:
- Best quality surf: Sunday 20 Sep, 8AM (local time) - 2ft (0.6m), 18s period, SW swell with offshore winds.
- Most powerful swell: Monday 21 Sep, 11AM (local time) - 2.5ft (0.8m), 17s period, SW swell with 338 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 5AM (local time) - 1.5ft (0.4m), 17s period with SW 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 Tuesday (Sep 15) at 5AM. The primary swell is predicted to be 0.4m and 17s period with a secondary swell of 0.5m and 6s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Rat Beach in the next 16 days are 0.8m 17s and forecast to arrive on Monday (Sep 21) at 11AM. Winds are predicted to be offshore 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+) | 5AM (Tue 15th Sep) | 1.5ft (0.4m) 17s |
| Best Surf | 8AM (Sun 20th Sep) | 2ft (0.6m) 18s |
| Most Powerful | 11AM (Mon 21st Sep) | 2.5ft (0.8m) 17s |
Table - best surf conditions forecast for Rat Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at the next couple of weeks.
We’re starting off a bit slow, but there's a little pulse of energy building. The first surf worth mentioning comes in on Tuesday the 15th, but it's pretty ordinary really. We’ve got a tiny 1ft swell from the SW, and while the morning offshore wind from the SSE will clean it up nicely, it's not going to get the heart racing. The afternoon sees the wind drop to a light cross-off, but the swell stays tiny at 2ft. Not worth paddling out for.
Things stay flat and messy through Wednesday and Thursday. The swell barely reaches 1ft, and while there are moments of clean conditions, the wave energy is next to nothing. You can leave the board in the truck.
Now, the first real standout window opens up on Sunday the 20th. The morning is looking clean with a light offshore from the SSE and a 2ft SW groundswell. The conditions will make it fun for a beginner-friendly reef break like Rat Beach. The water temperature is about average for this time of year, so no wetsuit drama.
Monday the 21st is the true highlight of this outlook. We get a gentle offshore breeze from the SE in the morning, with the swell picking up to 3ft from the SW. The period is a solid 17 seconds, so this is a proper, long-period groundswell. This will bring clean, well-shaped waves. Just keep in mind, Rat Beach is inconsistent and only breaks sometimes, but Monday morning could be the session to aim for. The offshore wind is a major positive, you'll have clean lines.
The following week drops off again. From Tuesday the 22nd onwards, we see a mix of cross-off and cross-on winds, with the swell dropping back to the 2ft range. The conditions aren't there. After the 25th, it gets really flat, with a 0.3ft to 1ft range for the rest of the period.
Overall, it’s a very quiet period. There's only one true standout: Monday the 21st morning. Get out there for that if you can. The rest is a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Tue morning, min 19°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Sat afternoon, min 19°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||
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 17 | SW 16 | W 9 | SW 16 | WSW 5 | SW 15 | SW 14 | SW 21 | SW 21 | W 5 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 |
Wave Graph  | |||||||||||||||||||
 kJ | 106 | 90 | 37 | 39 | 10 | 37 | 33 | 71 | 72 | 13 | 184 | 184 | 131 | 199 | 252 | 199 | 252 | 252 | 241 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross-off | cross | cross-off | cross | cross-on | glassy | cross-off | cross-on | glassy | cross-off | cross-on | cross-off | off | cross-on | cross-off |
High Tide | 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 | 8:03AM1.50m | 5:42PM1.80m | ||||||||
Low Tide | 5:34AM0.98m | 7:22PM0.64m | 5:47AM1.12m | 8:36PM0.71m | 10:17PM0.72m | 11:43PM0.65m | 10:16AM1.43m | 00:37AM0.56m | 11:59AM1.34m | 1:14AM0.48m | |||||||||
 |  | | |  | |  | | | | | | | | | | | | | |
 | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — |
 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 21 | 21 | 20 | 20 | 20 | 19 | 19 | 20 | 20 | 20 | 21 | 20 | 21 | 22 | 21 | 21 | 21 | 21 |
Feels °C | 22 | 21 | 20 | 21 | 20 | 19 | 19 | 20 | 19 | 19 | 20 | 21 | 19 | 22 | 21 | 21 | 21 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | WSW 6 | W 6 | W 9 | W 6 | SSW 17 | SSW 17 | S 16 | SSW 16 | SSW 15 | SSW 15 | W 5 | SW 19 | W 6 | W 6 | SW 18 | W 6 | W 6 | W 6 | W 6 |
| kJ | 13 | 19 | 37 | 11 | 200 | 59 | 132 | 144 | 74 | 167 | 14 | 184 | 32 | 23 | 252 | 48 | 51 | 38 | 65 |
Swell 2 Height (m) Direction Period (s) | SW 17 | SW 16 | SW 16 | SW 16 | WSW 5 | SW 15 | SW 14 | SW 21 | SW 14 | W 5 | SW 19 | SSW 14 | SSW 13 | SW 18 | SSW 13 | SW 18 | SW 18 | SW 18 | SW 17 |
| kJ | 106 | 90 | 64 | 39 | 10 | 37 | 33 | 71 | 32 | 13 | 184 | 61 | 59 | 199 | 33 | 199 | 252 | 252 | 241 |
Swell 3 Height (m) Direction Period (s) | W 9 | W 9 | SSW 20 | SSW 19 | S 9 | WSW 5 | W 5 | W 5 | SW 21 | SW 21 | SSW 14 | S 11 | SW 19 | SSW 13 | SW 21 | SSW 12 | SSW 12 | SSW 12 | SSW 12 |
| kJ | 14 | 6 | 75 | 35 | 7 | 5 | 4 | 2 | 72 | 110 | 69 | 9 | 131 | 58 | 18 | 29 | 28 | 29 | 30 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 2 | — | — | W 5 | — | — | W 6 | — | — | W 7 | — |
| kJ | — | — | — | — | — | — | — | — | 1 | — | — | 14 | — | — | 23 | — | — | 107 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 1 | 0 | 0 | 149 | 2 | 166 | 63 | 0 | 0 | 63 | 0 | 0 | 41 | 0 | 0 | 55 | 0 |
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.
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