
Surf Forecasts:
Cardiff Reef surf forecast from 10 Sep 2026:
- Best quality surf: Thursday 10 Sep, 2AM (local time) - 3ft (0.9m), 17s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 8AM (local time) - 3.5ft (1.0m), 17s period, SW swell with 553 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 2AM (local time) - 3ft (0.9m), 17s period with SW swell.
Best Forecast Surf Conditions for Cardiff Reef this week:
The surf forecast for Cardiff Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 10) at 2AM. The primary swell is predicted to be 0.9m and 17s period with a secondary swell of 0.5m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cardiff Reef in the next 16 days are 1.0m 17s and forecast to arrive on Thursday (Sep 10) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 12s period and expected on Thursday (Sep 10) at 8AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 10th Sep) | 3ft (0.9m) 17s |
| Best Surf | 2AM (Thu 10th Sep) | 3ft (0.9m) 17s |
| Most Powerful | 8AM (Thu 10th Sep) | 3.5ft (1.0m) 17s |
Table - best surf conditions forecast for Cardiff Reef over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s chew the fat on Cardiff Reef for the next couple weeks.
First off, the water temp is a toasty 72°, which is about 3° warmer than normal for this time of year. That’s a real treat – you can get away with a spring suit.
Truth be told, the first week is a bit of a grind. This reef is very consistent and wants to fire, but the conditions just aren’t cooperating. From Wednesday the 9th through the weekend, we’re looking at small, bumpy surf. Swell is hanging around 1 ft to 4 ft out of the SW, but the wind is a mess – cross-onshore or onshore most of the time, messing up the surface. The wave energy is weak to moderate in that stretch (240 to 563 on the combined scale). Not really worth the paddle unless you’re just trying to get wet.
There’s a flash on Sunday the 13th morning with a 4 ft west swell, but the period is a pathetic 7 seconds. That’s just going to be weak, crumbling junk. Skip it.
Things finally start to come together in the second week. Monday the 21st and Tuesday the 22nd, we’ve got some SW groundswell around 3 ft, with combined wave energy climbing into a moderate range (463 to 707). The wind goes light and offshore or cross-offshore from the WNW for a few sessions. That’s the clean-up crew we need. The period is a healthy 16 to 17 seconds, meaning long, powerful lines. A reef break loves that kind of energy, though the sets can be a little straight.
The real standout window is Friday the 18th and Saturday the 19th. We’re looking at a 2 ft to 3 ft SW groundswell with a period of 18 to 19 seconds, and light offshore breezes from the west. The combined energy is solid, sitting between 548 and 567. It’s not huge, but it’s got real punch for this spot. The wind will have the faces glassy, and while crowds can be *sometimes* an issue here, a Friday or Saturday morning might not be too packed. The swell is coming from the SW, which is close to the preferred WNW direction, so it’ll wrap in nicely. That’s your best bet of the whole 16 days – don’t miss it.
After that, the energy fades into the last few days, with smaller swell and onshore wind returning. It’s a slow burn, but the 18th to the 21st is where you want to be.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed afternoon. Warm (max 29°C on Wed afternoon, min 21°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Sun morning, min 19°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | ||||||||||||||
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 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 13 | W 8 | W 8 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 |
Wave Graph | ||||||||||||||||||||
326 | 419 | 547 | 496 | 483 | 471 | 360 | 309 | 248 | 208 | 158 | 131 | 130 | 127 | 150 | 192 | 188 | 163 | 157 | 157 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | glassy | cross | cross-on | cross | cross-on | cross-on | cross | cross-on | on | glassy |
High Tide | 8:37PM2.28m | 9:32AM1.98m | 9:20PM2.20m | 10:00AM2.05m | 10:03PM2.06m | 10:28AM2.09m | 10:45PM1.88m | 10:55AM2.09m | 11:29PM1.68m | 11:23AM2.06m | 00:17AM1.49m | 11:52AM1.99m | 1:21AM1.32m | |||||||
Low Tide | 2:33PM0.74m | 3:15AM0.17m | 3:17PM0.61m | 3:45AM0.28m | 4:00PM0.53m | 4:13AM0.43m | 4:42PM0.49m | 4:39AM0.61m | 5:26PM0.51m | 5:03AM0.79m | 6:13PM0.56m | 5:23AM0.96m | 7:07PM0.64m | |||||||
— | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | |
7:04 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 6:58 | — | — | 6:57 | — | — | 6:54 | — | |
mm | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 26 | 27 | 27 | 24 | 24 | 25 | 23 | 22 | 22 | 20 | 23 | 23 | 20 | 22 | 22 | 20 | 22 | 22 | 20 |
Feels °C | 30 | 28 | 28 | 28 | 25 | 24 | 25 | 25 | 22 | 21 | 22 | 22 | 21 | 21 | 22 | 21 | 21 | 22 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | W 6 | W 6 | W 6 | W 7 | W 8 | W 8 | W 7 | W 7 | SW 17 | SW 16 | SW 16 | SW 16 |
326 | 419 | 547 | 496 | 483 | 471 | 360 | 309 | 44 | 32 | 65 | 131 | 114 | 120 | 81 | 50 | 188 | 163 | 157 | 157 | |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 12 | W 6 | W 6 | W 6 | W 7 | W 6 | W 6 | SW 14 | SW 14 | SW 14 | SSW 13 | SSW 13 | SW 13 | SW 18 | SW 18 | W 7 | W 9 | W 9 | WNW 8 |
85 | 82 | 16 | 18 | 25 | 43 | 39 | 33 | 248 | 208 | 158 | 120 | 118 | 84 | 150 | 192 | 21 | 40 | 38 | 21 | |
Swell 3 Height (m) Direction Period (s) | SSW 8 | W 5 | S 12 | SSW 12 | SSW 11 | S 10 | S 10 | S 9 | S 10 | S 10 | S 9 | S 8 | SW 19 | SW 19 | SW 13 | SW 12 | SW 12 | SW 12 | SSW 20 | SSW 18 |
44 | 10 | 72 | 45 | 39 | 19 | 17 | 16 | 31 | 29 | 24 | 12 | 130 | 127 | 84 | 39 | 38 | 37 | 127 | 109 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 44 | 0 | 21 | 21 | 17 | 91 | 193 | 44 | 44 | 44 | 0 | 21 | 92 | 17 | 131 | 92 | 7 | 115 | 44 | 0 |
Best forecast wave conditions in San Diego County | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the Cardiff Reef Surf forecast
The above surf forecast table for Cardiff Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cardiff Reef can be found by selecting the local surf guide option on the grey menu. Our Cardiff Reef 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 (Cardiff Reef) 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 Cardiff Reef 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.
Cardiff Reef is 3 km (2 miles) from the city of Encinitas. If you plan a vacation in San Diego County, look for hotels and other accommodation in Encinitas. Encinitas has rooms for a wide range of budgets as well as car hire and transport links.










