Rat Beach Surf Break

Lat Long: 33.81° N 118.40° W

Rat Beach Surf Forecast and Surf Report

Issued: 10 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Rat Beach sea temperature is
21.1° C
2.3° 

Rat Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Rat Beach surf forecast from 18 Aug 2026:

  • Best quality surf: Tuesday 25 Aug, 2AM (local time) - 4.5ft (1.4m), 7s period, W swell with cross-offshore winds.
  • Most powerful swell: Tuesday 25 Aug, 2AM (local time) - 4.5ft (1.4m), 7s period, W swell with 181 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 19 Aug, 2AM (local time) - 3ft (0.9m), 6s 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 Wednesday (Aug 19) at 2AM. The primary swell is predicted to be 0.9m and 6s 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 1.4m 7s and forecast to arrive on Tuesday (Aug 25) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 15s period and expected on Wednesday (Aug 19) at 5AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Wed 19th Aug)3ft (0.9m) 6s
Best Surf 2AM (Tue 25th Aug)4.5ft (1.4m) 7s
Most Powerful 2AM (Tue 25th Aug)4.5ft (1.4m) 7s

Table - best surf conditions forecast for Rat Beach over the next 16 days.


The Lowdown

G'day, Rusty here. Look, I've had a good look at the local setup, and to be honest, it's a pretty bleak stretch coming up. We're looking at a solid 16-day window, but there's barely a ripple to get excited about. The only spot on the radar is Rat Beach, a reef break that's inconsistent and best left for the beginners when it does work. Let's run through it.

The water's sitting at a very unusual 70°F, which is much warmer than normal for this time of year, so that's a bit of a novelty.

Right from the start, on Tuesday the 18th, we've got small 2ft swell from the west with a short 6-second period. The combined energy is weak (38). The morning has a slight cross-off breeze, so it's clean, but the wave comment sums it up: "poor surf conditions." The afternoons are a write-off with a moderate cross-onshore breeze making it choppy.

This grim pattern just keeps rolling. Wednesday the 19th, Thursday the 20th, Friday the 21st, and Saturday the 22nd all offer the same story: tiny 1ft to 2ft swell, short period, and weak energy. The mornings are clean, but the swell is just too small and weak to do anything with. The surf is rated as "poor surf conditions" or "surfable waves but very ordinary conditions" at best.

Sunday the 23rd and Monday the 24th see the combined energy climb into the moderate range (127 to 142), but the swell is still a pathetic 1ft from the southwest with a short period. The wind is cross-on, and the waves are just messy. There's nothing to paddle for.

The following week, from Tuesday the 25th through to Monday the 1st of September, the combined energy gets a bit stronger (201 at one point), but the swell height barely moves between 1ft and 3ft. It's still a short-period, wind-affected mess. The only morning that looks semi-clean is Wednesday the 27th, but the swell is only 1ft with weak energy (90). It's a tease.

Finally, on Wednesday the 2nd of September, we get a small glimmer. The morning shows a 2ft swell from the southwest, but look at that period—16 seconds! That's a proper groundswell. The wind is light offshore from the southeast, so the conditions will be clean. The combined energy is moderate (174). For a brief moment, there might be a clean, long-period wave to be found. But it's still tiny, and the afternoon wind swings around to mess it up. This is the only real standout in the entire forecast, and it's a long way off, so don't hold your breath.

Honestly, for the whole 16 days, the surf is just too small and weak to be worth a trip. The best call is to wait for a better forecast. The consistent lack of quality means it's a normal quiet spell for the area.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 24°C on Wed afternoon, min 19°C on Tue morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 24°C on Sat morning, min 22°C on Fri morning). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
0
0
0
1
0
0
1
0
0
1
0
1
0
0
1
0
0
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
W
6
0.7
W
6
0.9
W
6
0.7
W
6
0.5
W
6
0.5
W
6
0.3
SW
19
0.4
W
5
0.2
W
12
0.3
SW
18
0.3
SW
18
0.3
SW
17
0.3
SW
18
0.3
SW
18
0.3
SW
19
0.4
SW
19
0.4
SW
18
0.4
SW
18
0.4
SW
18
0.4
SW
17
1.4
W
7
Wave Graph
Metric surfscale
Energy kJ
38
38
63
36
16
15
56
14
11
50
49
47
50
50
58
127
111
112
111
101
181
Wind (km/h)
10
SSW
15
W
5
SSE
5
SSW
15
W
5
SSE
10
SSE
10
SW
5
SE
10
S
15
WSW
5
SE
10
SSW
15
WSW
5
SW
10
WSW
20
W
5
SW
5
WSW
15
W
5
SSW
Wind State
cross-off
cross-on
cross-off
cross-off
cross-on
off
cross-off
cross
off
cross-off
cross
off
cross-off
cross-on
glassy
cross
cross-on
glassy
cross-on
cross-on
cross-off
High Tide
1:53PM1.88m
3:42AM1.21m
2:45PM1.83m
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
Low Tide
9:30PM0.80m
7:13AM1.13m
11:10PM0.74m
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
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
rain showers
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:18
6:18
6:18
6:20
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:36
7:35
7:34
7:31
7:30
7:30
7:29
 mm
1
Temp °C
21
22
21
23
24
22
23
23
22
23
23
23
24
24
23
24
24
23
23
24
23
Feels °C
23
23
20
25
24
22
24
24
23
24
23
24
25
24
24
24
23
22
25
23
23
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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