Surf Forecasts:
Rat Beach surf forecast from 20 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 8AM (local time) - 4.5ft (1.4m), 7s period, WNW swell with glassy winds.
- Most powerful swell: Wednesday 26 Aug, 8AM (local time) - 4.5ft (1.4m), 7s period, WNW swell with 186 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 8AM (local time) - 1ft (0.3m), 18s 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 Friday (Aug 21) at 8AM. The primary swell is predicted to be 0.3m and 18s period with a secondary swell of 0.5m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Rat Beach in the next 16 days are 1.4m 7s and forecast to arrive on Wednesday (Aug 26) 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 0.9m 14s period and expected on Wednesday (Aug 26) at 2PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Fri 21st Aug) | 1ft (0.3m) 18s |
| Best Surf | 8AM (Wed 26th Aug) | 4.5ft (1.4m) 7s |
| Most Powerful | 8AM (Wed 26th Aug) | 4.5ft (1.4m) 7s |
Table - best surf conditions forecast for Rat Beach over the next 16 days.
The Lowdown
Alright, let’s talk shop in feet and knots.
This is a lean 16-day forecast for Rat Beach, and I won’t sugarcoat it – the surf is tiny and the wind is a pain most days. Water temp’s about 70°, a touch above normal for now, so it’s not too chilly while you’re sitting out there.
Rat Beach is a little reef break that’s more for beginners, but it’s inconsistent and only works sometimes. It likes swell from the NW, but we’re mostly gettin’ small SW and W stuff that doesn’t line up well.
Thursday, August 20th morning is your best early call: 1ft from the SW, clean with a light cross-off breeze. Weak energy (80), but you can get a few. That afternoon, the wind turns onshore and it’s game over.
From Friday the 21st through Tuesday the 26th of August, forget it. The swell stays between 1ft and 2ft, and the wind is mostly cross-on with chop. Energy bumps up a little on Monday and Tuesday the 25th (216), but the wind ruins any chance of clean waves.
First real standout is Wednesday morning, August 26th: 3ft from the west, short period (7 seconds), but the wind is light cross-offshore, so it’ll be clean. Energy is weak (85), but it’s the best we’ve seen. Thursday morning the 27th is similar – 3ft, clean, and light wind.
Friday morning, August 28th, has offshore wind from the SE with 2ft swell but a longer 11-second period – more push and shape. The energy is still low (57), but the clean conditions make it worth a paddle. Friday afternoon is even more interesting: 2ft from the SW with a 13-second period and light cross-off wind. At a reef spot, that longer period could actually line up a nice little wave.
Then it’s back to tiny, messy, or onshore until Monday morning, September 1st: 2ft from the west with glassy conditions. That’s a rare, flat-calm moment – a few clean little rides for the early bird. Energy is low (63), but glassy is glassy.
Wednesday morning, September 2nd, has a 2ft SW swell with a long 16-second period, but the wind is cross-on and choppy – not worth it. Thursday morning, September 3rd, is another clean window: 4ft from the west, offshore SE wind, and moderate energy (116). That’s probably the best of the second week, but still small.
Friday morning, September 4th, closes it out with 3ft from the west, clean and light cross-off wind.
Your best bets: Wednesday morning August 26th and Friday morning August 28th. The glassy Monday September 1st is a dark horse. Everything else is small and choppy. Pick your windows wisely.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Fri morning, min 19°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Tue night, min 22°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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 | W 6 | W 6 | SW 18 | SW 18 | SW 17 | SW 18 | SW 18 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 16 | W 6 | W 6 | W 7 | W 6 | W 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 56 | 14 | 15 | 50 | 49 | 47 | 50 | 50 | 58 | 127 | 112 | 112 | 111 | 100 | 135 | 132 | 91 | 132 | 85 | 59 | 97 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | glassy | cross | cross-on | glassy | cross-on | cross-on | cross-off | cross | cross-on | glassy | cross | cross-on | glassy | cross | cross-on | cross | cross-off | cross-on | off |
High Tide | 3:57PM1.81m | 8:34AM1.36m | 5:14PM1.84m | 8:37AM1.43m | 6:15PM1.92m | 8:52AM1.49m | 7:02PM2.01m | 9:08AM1.54m | 7:41PM2.10m | 9:26AM1.60m | 8:17PM2.17m | 9:45AM1.66m | 8:52PM2.19m | ||||||||
Low Tide | 00:27AM0.64m | 10:14AM1.35m | 1:18AM0.53m | 12:01PM1.32m | 1:56AM0.42m | 12:56PM1.25m | 2:27AM0.34m | 1:37PM1.16m | 2:55AM0.27m | 2:12PM1.06m | 3:21AM0.24m | 2:47PM0.96m | 3:45AM0.25m | ||||||||
 |  |  | | | | | | | | | | | | | | | | | | | |
 | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | 7:34 | — | — | 7:31 | — | — | 7:30 | — | — | 7:30 | — | — | 7:29 | — | — | 7:28 | — | — | 7:25 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 22 | 21 | 23 | 23 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 26 | 23 | 25 | 26 |
Feels °C | 21 | 23 | 22 | 25 | 23 | 22 | 23 | 22 | 22 | 23 | 22 | 21 | 23 | 22 | 21 | 24 | 23 | 23 | 24 | 22 | 23 |
Swell 1 Height (m) Direction Period (s) | W 6 | SSW 14 | SSW 14 | W 5 | SSW 13 | W 6 | W 6 | SSW 12 | W 6 | W 6 | SSW 13 | W 6 | W 6 | SW 17 | SW 17 | SW 16 | SW 16 | S 13 | W 7 | S 13 | W 6 |
| kJ | 24 | 120 | 115 | 9 | 68 | 25 | 24 | 31 | 48 | 32 | 57 | 32 | 42 | 100 | 135 | 132 | 91 | 78 | 85 | 165 | 97 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | W 6 | W 6 | SSW 13 | SW 18 | SSW 13 | SW 13 | SSW 15 | SSW 14 | SSW 13 | SW 18 | S 14 | S 14 | SSW 12 | SSW 13 | SSW 13 | SSW 13 | SW 16 | S 14 | SSW 16 | SSW 15 |
| kJ | 118 | 9 | 15 | 69 | 49 | 68 | 42 | 42 | 120 | 58 | 112 | 103 | 106 | 29 | 57 | 57 | 58 | 89 | 146 | 164 | 188 |
Swell 3 Height (m) Direction Period (s) | SW 19 | SW 19 | W 12 | SW 18 | S 16 | SW 17 | SW 18 | SW 18 | SW 19 | SW 19 | S 16 | SW 18 | SW 18 | S 14 | S 10 | W 18 | W 17 | S 16 | S 12 | W 14 | S 12 |
| kJ | 56 | 14 | 3 | 50 | 21 | 47 | 50 | 50 | 58 | 127 | 20 | 112 | 111 | 37 | 2 | 6 | 6 | 43 | 67 | 15 | 136 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | W 5 | — | — | W 6 | — | — | W 6 | W 6 | — | W 6 | W 6 | W 6 | W 6 | W 6 | — | W 6 | — |
| kJ | — | — | — | — | 8 | — | — | 22 | — | — | 21 | 74 | — | 39 | 73 | 78 | 78 | 132 | — | 59 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 41 | 0 | 2 | 41 | 0 | 63 | 41 | 0 | 149 | 118 | 0 | 63 | 118 | 0 | 74 | 166 | 6 | 0 | 63 | 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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