Surf Forecasts:
Cardiff Reef surf forecast from 13 Aug 2026:
- Best quality surf: Thursday 13 Aug, 11PM (local time) - 3ft (0.9m), 16s period, SW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 2AM (local time) - 4.5ft (1.3m), 17s period, SSW swell with 921 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 11PM (local time) - 3ft (0.9m), 16s 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 (Aug 13) at 11PM. The primary swell is predicted to be 0.9m and 16s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cardiff Reef in the next 16 days are 1.3m 17s and forecast to arrive on Saturday (Aug 15) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 11s period and expected on Thursday (Aug 13) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 13th Aug) | 3ft (0.9m) 16s |
| Best Surf | 11PM (Thu 13th Aug) | 3ft (0.9m) 16s |
| Most Powerful | 2AM (Sat 15th Aug) | 4.5ft (1.3m) 17s |
Table - best surf conditions forecast for Cardiff Reef over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s be straight with you – the next sixteen days around Cardiff Reef are looking pretty flat and messy, with no real standouts. The swell is small, the wind is onshore or cross-onshore most of the time, and the scores reflect that. It’s one of those stretches where you’re better off waiting for a proper swell.
The whole run kicks off on Thursday, August 13, and it’s a bit sad. Thursday morning you’re looking at a tiny 2ft SW groundswell with a solid 16-second period, but the wind is cross-on from the WSW at 6 mph, so it’s lumpy and small. The combined energy is weak (270). It’s basically a marginal session – you might get a few, but don’t hold your breath. Thursday afternoon barely improves: 3ft SW, 16-second period, but the wind turns onshore, and the wave energy jumps to moderate (409) but the conditions are poor.
Friday, August 14, stays the same tune. Morning has 2ft SSW groundswell with an 18-second period – that’s a very long-period groundswell, which can make for clean lines at a reef, but the wind is onshore at 9 mph. Wave energy is moderate (547) but messy. Afternoon gets 3ft SSW, 18 seconds, moderate energy (733), still onshore. You’re battling ripples.
Saturday, August 15, is more of the same: 3ft SSW, 16 seconds, onshore wind, moderate energy (615) in the morning, and 4ft SSW, 16 seconds, moderate energy (705) in the afternoon. The bump in size to 4ft is the biggest we see, but the onshore wind chops it up. This is a reef break, very consistent, and it gets crowds sometimes, but with conditions this poor, you’ll likely have it to yourself.
Sunday, August 16, morning has 3ft SSW, 15 seconds, still onshore, moderate energy (516). Afternoon the swell drops to 3ft, period drops to 14 seconds, wind is onshore from the WNW – poor.
From Monday, August 17, right through to Friday, August 28, it’s a long slog of 2ft to 3ft SSW and SW groundswells, periods between 13 and 19 seconds, with onshore or cross-onshore winds almost daily. Wave energy stays weak to moderate (between 157 and 461). A few sessions get a “marginal” tag, but mostly it’s poor. The one glimmer: on Sunday, August 23, you get 2ft SW with a super-long 19-second period and moderate energy (425), but the wind is onshore from the WNW – frustrating.
Bottom line: if you’re desperate, the best shot might be the early mornings of Friday, August 14, or Saturday, August 15, with the longest-period swell, but the onshore wind kills the quality. Don’t expect anything clean or punchy. This reef needs a proper SW groundswell with offshore winds, and we’re not getting that.
Stay patient, mate.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Thu morning, min 19°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Tue morning, min 20°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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 16 | SW 16 | SW 15 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SSW 17 | SSW 15 | SSW 16 | SSW 16 | SSW 15 |
Wave Graph | |||||||||||||||||||||
255 | 353 | 276 | 292 | 404 | 921 | 417 | 683 | 666 | 493 | 443 | 367 | 367 | 264 | 321 | 232 | 243 | 339 | 382 | 314 | 246 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | glassy | on | on | glassy | on | on | cross-on | on | on | cross-on | on | on | glassy | cross-on | on | glassy | cross-on | cross-on | cross |
High Tide | 10:45AM1.87m | 10:15PM2.29m | 11:18AM1.93m | 10:59PM2.09m | 11:51AM1.96m | 11:44PM1.85m | 12:25PM1.96m | 00:33AM1.60m | 1:00PM1.93m | 1:34AM1.37m | 1:40PM1.88m | 3:22AM1.21m | 2:32PM1.82m | ||||||||
Low Tide | 4:10PM0.75m | 4:57AM0.17m | 4:59PM0.72m | 5:28AM0.35m | 5:50PM0.72m | 5:57AM0.56m | 6:45PM0.75m | 6:23AM0.77m | 7:50PM0.79m | 6:46AM0.96m | 9:14PM0.81m | 7:00AM1.12m | 10:58PM0.76m | ||||||||
6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | |
— | 7:37 | — | — | 7:36 | — | — | 7:35 | — | — | 7:32 | — | — | 7:31 | — | — | 7:30 | — | — | 7:30 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 20 | 22 | 22 | 20 | 21 | 21 | 20 | 22 | 23 | 21 | 24 | 24 | 23 | 25 | 25 | 23 | 25 | 25 | 22 |
Feels °C | 23 | 22 | 21 | 22 | 21 | 20 | 21 | 20 | 20 | 23 | 22 | 21 | 24 | 23 | 24 | 26 | 25 | 25 | 26 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 15 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | W 6 | W 7 | W 8 | WNW 8 | W 9 | W 8 | W 8 | W 8 |
255 | 353 | 276 | 255 | 404 | 921 | 417 | 683 | 666 | 493 | 443 | 367 | 367 | 64 | 111 | 115 | 118 | 125 | 153 | 134 | 228 | |
Swell 2 Height (m) Direction Period (s) | S 11 | S 11 | S 10 | SSW 18 | SW 14 | S 12 | SW 14 | S 11 | S 11 | W 6 | S 10 | W 6 | W 6 | SSW 14 | SSW 14 | SSW 16 | SSW 17 | SSW 15 | SSW 16 | SSW 16 | SSW 15 |
60 | 59 | 52 | 292 | 251 | 43 | 191 | 37 | 20 | 22 | 8 | 50 | 49 | 264 | 321 | 232 | 243 | 339 | 382 | 314 | 246 | |
Swell 3 Height (m) Direction Period (s) | W 9 | SSW 21 | SSW 20 | S 11 | SSW 11 | WSW 8 | S 11 | W 11 | W 13 | S 11 | W 11 | S 10 | S 10 | SSW 18 | S 9 | SSW 13 | SSW 13 | S 9 | SW 20 | S 9 | SW 18 |
14 | 44 | 149 | 36 | 68 | 12 | 38 | 10 | 13 | 20 | 9 | 8 | 8 | 32 | 7 | 114 | 98 | 6 | 16 | 1 | 50 | |
Wind waves Height (m) Direction Period (s) | — | W 8 | — | — | WNW 7 | — | WNW 5 | W 5 | W 5 | — | W 6 | — | — | WNW 6 | — | — | — | — | — | — | — |
— | 12 | — | — | 10 | — | 7 | 12 | 19 | — | 31 | — | — | 85 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 131 | 44 | 0 | 44 | 43 | 0 | 44 | 43 | 43 | 43 | 44 | 7 | 43 | 43 | 0 | 44 | 44 | 0 | 21 | 193 | 17 |
Best forecast wave conditions in San Diego County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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.











