
Surf Forecasts:
Japs Cove surf forecast from 8 Sep 2026:
- Most powerful swell: Monday 7 Sep, 11PM (local time) - 3.5ft (1.1m), 12s period, SSW swell with 379 kJ wave energy.
Best Forecast Surf Conditions for Japs Cove this week:
The most powerful waves expected at Japs Cove in the next 16 days are 1.1m 12s and forecast to arrive on Monday (Sep 07) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Mon 7th Sep) | 3.5ft (1.1m) 12s |
Table - best surf conditions forecast for Japs Cove over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what’s cooking for the next couple of weeks.
We’re looking at a pretty quiet run, to be honest. There’s a long stretch of days where the surf just isn’t shaping up, and it’s not until the very end of the window that we see a glimmer of something rideable. The first real chance to paddle out comes on Friday, 18 September, but even then, it’s marginal.
The first recommendation is for Japs Cove (a sheltered reef setup for advanced surfers only). It’s inconsistent at the best of times, and that’s the story here. The water is sitting at 73°F, which is a massive 6°F warmer than normal for this time of year – that’s very unusual, and you’ll definitely feel it.
For the bulk of the 16-day period, from the start right through to Thursday, 17 September, the surf is a write-off. Small, weak, and messy. The combined energy of the swells is mostly in the 100-200 range (weak), with a few days pushing into the 300s (moderate), but the wind is consistently cross or cross-onshore, putting a chop on everything. It’s not worth getting wet for.
The only time that even sniffs a chance is Friday morning, 18 September. We’ve got a 2 ft swell from the SW with a super long period of 19 seconds – that’s a proper groundswell. The wind is light and cross-shore, so it’ll be clean. The combined energy reads 405 (moderate). The problem is, a long period 19s swell on a sheltered reef like Japs Cove can be extremely straight and difficult to manage. And with a rating of marginal, it’s a long shot for a skilled local who knows the wave. This is the only stand-out in the whole outlook, and it’s a low-percentage one.
After that, it’s back to poor conditions through the rest of the window. Honestly, if you’re set on a paddle, wait and see if the forecasts improve. For now, this is a period to rest the arms and watch the horizon.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Tue afternoon, min 22°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Thu afternoon, min 20°C on Sat morning). Wind will be generally light. | |||||||||||||||||||
Mon 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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) | SSW 13 | SSW 12 | SSW 11 | SSW 13 | SW 16 | SW 19 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | W 7 | SW 13 | SW 19 | W 8 |
Wave Graph | ||||||||||||||||||||
405 | 224 | 119 | 96 | 94 | 93 | 135 | 232 | 288 | 306 | 251 | 245 | 176 | 171 | 103 | 100 | 97 | 50 | 58 | 163 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | on | cross | cross-on | on | cross | cross | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 7:06PM2.24m | 8:45AM1.75m | 7:57PM2.29m | 9:13AM1.86m | 8:44PM2.27m | 9:41AM1.96m | 9:28PM2.19m | 10:09AM2.04m | 10:12PM2.04m | 10:37AM2.08m | 10:55PM1.86m | 11:05AM2.08m | 11:40PM1.67m | |||||||
Low Tide | 2:14AM0.11m | 1:53PM0.92m | 2:50AM0.11m | 2:40PM0.76m | 3:23AM0.17m | 3:25PM0.63m | 3:54AM0.29m | 4:09PM0.54m | 4:22AM0.45m | 4:52PM0.50m | 4:49AM0.63m | 5:36PM0.51m | ||||||||
— | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | |
7:10 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:05 | — | — | 7:04 | — | — | 7:02 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 27 | 29 | 28 | 28 | 29 | 25 | 23 | 23 | 23 | 21 | 22 | 22 | 20 | 21 | 21 | 20 | 22 | 21 |
Feels °C | 26 | 23 | 26 | 25 | 24 | 28 | 27 | 23 | 23 | 23 | 25 | 21 | 23 | 23 | 19 | 22 | 23 | 20 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 12 | SSW 11 | SSW 10 | SSW 10 | SSW 9 | SW 17 | W 5 | SW 17 | SW 16 | W 7 | SW 16 | SW 15 | W 7 | W 6 | W 6 | W 7 | W 7 | SW 13 | W 8 |
405 | 224 | 119 | 75 | 75 | 46 | 135 | 25 | 288 | 306 | 55 | 245 | 176 | 113 | 51 | 38 | 96 | 50 | 45 | 163 | |
Swell 2 Height (m) Direction Period (s) | SSW 19 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SW 19 | SSW 9 | SW 17 | W 6 | W 5 | SW 16 | W 6 | W 6 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | W 11 | SW 13 |
35 | 149 | 104 | 96 | 68 | 93 | 29 | 232 | 22 | 14 | 251 | 37 | 26 | 171 | 103 | 100 | 97 | 46 | 35 | 44 | |
Swell 3 Height (m) Direction Period (s) | W 11 | SSW 18 | SW 18 | SW 18 | SW 16 | SW 16 | SSW 12 | SW 8 | SW 8 | SW 8 | SSW 7 | S 11 | WSW 13 | W 15 | WSW 14 | WSW 13 | WSW 12 | W 11 | SW 19 | SW 19 |
2 | 31 | 49 | 50 | 94 | 91 | 51 | 17 | 17 | 16 | 5 | 9 | 17 | 17 | 36 | 35 | 15 | 21 | 58 | 57 | |
Wind waves Height (m) Direction Period (s) | W 3 | W 4 | W 4 | W 4 | W 4 | W 3 | W 4 | — | — | — | — | SE 2 | — | — | — | — | — | — | W 7 | — |
5 | 7 | 3 | 9 | 9 | 6 | 20 | — | — | — | — | 1 | — | — | — | — | — | — | 45 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 127 | 5 | 67 | 127 | 5 | 4 | 158 | 10 | 9 | 4 | 11 | 10 | 54 | 9 | 11 | 73 | 9 | 11 | 158 | 10 |
Best forecast wave conditions in Los Angeles County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
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Information about the Japs Cove Surf forecast
The above surf forecast table for Japs Cove provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Japs Cove can be found by selecting the local surf guide option on the grey menu. Our Japs Cove 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 (Japs Cove) 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 Japs Cove 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.
Japs Cove is 5 km (3 miles) from Rancho Palos Verdes. If you plan a vacation in Los Angeles County, look for hotels and other accommodation in Rancho Palos Verdes. Rancho Palos Verdes has rooms for a wide range of budgets as well as car hire and transport links.










