
Surf Forecasts:
Japs Cove surf forecast from 11 Sep 2026:
- Best quality surf: Sunday 13 Sep, 2AM (local time) - 3.5ft (1.1m), 7s period, W swell with glassy winds.
- Most powerful swell: Friday 11 Sep, 8AM (local time) - 2.5ft (0.7m), 16s period, SW swell with 248 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 2AM (local time) - 3.5ft (1.1m), 7s period with W swell.
Best Forecast Surf Conditions for Japs Cove this week:
The surf forecast for Japs Cove over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 13) at 2AM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.5m and 14s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Japs Cove in the next 16 days are 0.7m 16s and forecast to arrive on Friday (Sep 11) at 8AM. 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+) | 2AM (Sun 13th Sep) | 3.5ft (1.1m) 7s |
| Best Surf | 2AM (Sun 13th Sep) | 3.5ft (1.1m) 7s |
| Most Powerful | 8AM (Fri 11th Sep) | 2.5ft (0.7m) 16s |
Table - best surf conditions forecast for Japs Cove over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what this 16-day stretch has in store. To be straight with you, the setup we’ve got on offer ain’t gonna fire up the jetty. The combined swell energy is mostly hovering between moderate and weak – numbers like 279, 203, and 163 for the first few days, climbing to near 300 and above towards the end of the period, but the surf quality is consistently poor. That’s the tough nut. The swell is generally coming from the SW and SSW, which are far from the optimum direction for this sheltered spot, so it’s not working its magic.
Water temps? Based on the first few days on offer, we’ve got no anomaly flagged, so it’s about average for this time of year in these parts.
For the first week, starting Friday the 11th and right through the week, it’s grim. Waves are tiny – under 3 ft – with cross-onshore winds most of the time. Saturday morning, the 12th, we see a light breeze but it’s still cross-onshore with small wind ripples. Sunday the 13th has a weak 3 ft swell from the W, but with a puny 7-second period, that’s just messy. The wind state is unknown that morning, so we can't bank on anything. The whole first week is a write-off.
Into the second week, things don’t really improve. The combined energy does tick up, hitting 305 on Friday the 18th morning, but with a 2 ft swell and cross-onshore wind, it’s not something you paddle out for. By Sunday the 20th, we see the energy climbing past the 400 mark (403 for the morning, 380 in the arvo), but the waves are still only 2 ft, with cross-onshore wind. That’s a lot of energy for nothing to show – typical for a sheltered break that doesn’t get the right angle.
The last few days, from the 21st to the 26th, the energy stays respectable – 417 on Monday the 21st morning, 392 that afternoon, 274 on the Saturday the 26th morning – but the swell height never cracks 3 ft, and the wind is mostly onshore or cross-shore. The wind picks up, with a fresh breeze (19 mph) on the 23rd afternoon creating a lumpy cross-chop.
So what’s the standout? Honestly, there’s no standout here. This is a classic case of a long run with no good surf on offer. Japs Cove is an inconsistent reef that only works when the swell direction hits that optimum, and it just isn’t happening in this 16-day window. The first few days are dead, and even when the energy ramps up in the second week, the quality is poor. Crowds might pop by when there’s a pulse, but right now, the lineup’s gonna be empty for a reason.
We’ve got a gap of about 16 days with no real recommendation. Hang tight, or look elsewhere. Forecasts can change, but for now, it’s a flat spell.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 24°C on Thu night, min 21°C on Sat morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Sun night, min 19°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
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 16 | SW 16 | SW 15 | SW 15 | SSW 14 | SW 14 | W 7 | W 7 | SW 13 | W 8 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 17 | SSW 17 | SSW 16 |
Wave Graph | |||||||||||||||||||
295 | 245 | 176 | 171 | 140 | 100 | 110 | 69 | 45 | 141 | 48 | 108 | 106 | 90 | 75 | 88 | 200 | 59 | 86 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | cross-on | cross-on | cross-on | glassy | on | cross-on | cross | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | on |
High Tide | 9:28PM2.19m | 10:09AM2.04m | 10:12PM2.04m | 10:37AM2.08m | 10:55PM1.86m | 11:05AM2.08m | 11:40PM1.67m | 11:33AM2.05m | 00:30AM1.48m | 12:02PM1.98m | 1:37AM1.31m | 12:37PM1.89m | 4:36AM1.23m | ||||||
Low Tide | 3:54AM0.29m | 4:09PM0.54m | 4:22AM0.45m | 4:52PM0.50m | 4:49AM0.63m | 5:36PM0.51m | 5:12AM0.81m | 6:24PM0.56m | 5:32AM0.98m | 7:20PM0.64m | 5:45AM1.12m | 8:35PM0.71m | |||||||
— | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | |
— | — | 7:05 | — | — | 7:04 | — | — | 7:02 | — | — | 7:00 | — | — | 7:00 | — | — | 6:58 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 23 | 23 | 22 | 22 | 23 | 22 | 21 | 23 | 22 | 21 | 22 | 22 | 20 | 21 | 20 | 20 | 21 | 20 |
Feels °C | 27 | 23 | 24 | 23 | 24 | 23 | 22 | 23 | 23 | 22 | 21 | 23 | 24 | 20 | 21 | 21 | 20 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | W 6 | W 6 | SW 14 | W 7 | W 7 | W 7 | W 8 | W 7 | W 7 | W 6 | W 6 | W 8 | W 6 | SSW 17 | SSW 17 | SSW 16 |
295 | 245 | 176 | 33 | 23 | 100 | 110 | 69 | 43 | 141 | 45 | 34 | 20 | 18 | 37 | 11 | 200 | 59 | 86 | |
Swell 2 Height (m) Direction Period (s) | W 6 | W 6 | WSW 6 | SW 15 | SSW 14 | WSW 13 | SW 14 | SW 13 | W 10 | SW 13 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | WSW 5 | SW 15 | W 5 |
37 | 24 | 10 | 171 | 140 | 35 | 96 | 63 | 34 | 44 | 48 | 108 | 106 | 90 | 64 | 88 | 10 | 37 | 5 | |
Swell 3 Height (m) Direction Period (s) | SSW 7 | S 11 | WSW 13 | W 15 | WSW 14 | S 10 | WSW 12 | SW 19 | SW 13 | SW 19 | W 10 | W 10 | W 9 | W 9 | SSW 20 | SSW 19 | SW 24 | WSW 5 | SW 14 |
5 | 9 | 17 | 17 | 37 | 7 | 15 | 58 | 45 | 57 | 17 | 17 | 14 | 14 | 75 | 35 | 22 | 5 | 33 | |
Wind waves Height (m) Direction Period (s) | — | SE 2 | — | — | — | W 5 | — | — | — | — | — | — | — | SE 2 | — | — | — | — | — |
— | 1 | — | — | — | 21 | — | — | — | — | — | — | — | 1 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 11 | 11 | 11 | 9 | 10 | 51 | 0 | 11 | 156 | 0 | 9 | 73 | 9 | 9 | 11 | 10 | 10 | 156 | 27 |
Best forecast wave conditions in Los Angeles County | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










