Surf Forecasts:
San Juan surf forecast from 5 Aug 2026:
- Most powerful swell: Thursday 6 Aug, 10AM (local time) - 8ft (2.4m), 8s period, NE swell with 767 kJ wave energy.
Best Forecast Surf Conditions for San Juan this week:
The most powerful waves expected at San Juan in the next 16 days are 2.4m 8s and forecast to arrive on Thursday (Aug 06) at 10AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Thu 6th Aug) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for San Juan over the next 16 days.
The Lowdown
Alright, let’s get into it. I’ll be straight with you – this stretch is a tough one for surfers. We’re looking at San Juan, a reef break that needs things to line up just right, and for the next 16 days, it’s just not happening. The whole period is a write-off, honestly.
The swell sticks to a short-period (6–8 seconds) NE to NNE pulse the whole way, which at a reef setup means weak, gutless lines that won’t hold up. That combined energy sits mostly between 200 and 500 – that’s weak to moderate energy (157–819). The biggest energy spike is on Thursday morning, August 6th, with 819, but it’s paired with a strong onshore breeze. That’s not surfable; it’s just a mess.
The real killer is the wind. From Wednesday, August 5th, right through to Thursday, August 20th, it’s almost non-stop onshore or cross-onshore, blowing 15–25 mph from the N, NNE, or NNW. That’s a Fresh Breeze to Strong Breeze, slapping the surface flat. There is zero glassy or offshore wind in the whole 16-day window. Every single session is marked as “poor surf conditions.” Zero recommendations.
This isn’t a rare bad run for this spot; it’s just the standard for this time of year when the trades lock in. If you’re after a paddle, you’re out of luck. But with that consistent swell and the constant onshore wind, a kite surfer could have a field day out there—plenty of chop to jump off.
Don’t hold your breath. Sometimes you gotta sit this one out.
- Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Wed afternoon, min 21°C on Wed night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Sat afternoon, min 20°C on Sun night). Mainly fresh winds. | |||||||||||||||||||
Wed 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | ||||||||||||||
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) | NE 8 | NE 7 | NE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 7 | NNE 8 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 418 | 529 | 767 | 620 | 531 | 604 | 585 | 540 | 650 | 540 | 481 | 452 | 415 | 417 | 428 | 390 | 338 | 330 | 273 | 220 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | cross-on | on | on | cross-on | on | on | on | on | on | on | on | on | on | on |
High Tide | 6:50PM2.01m | 7:28AM1.89m | 7:59PM1.87m | 8:45AM1.84m | 9:27PM1.81m | 10:13AM1.88m | 10:57PM1.87m | 11:31AM2.04m | 00:09AM2.01m | 12:32PM2.25m | 1:06AM2.17m | 1:24PM2.45m | 1:55AM2.31m | |||||||
Low Tide | 1:05AM0.54m | 1:34PM0.66m | 2:15AM0.65m | 3:01PM0.71m | 3:43AM0.69m | 4:36PM0.63m | 5:08AM0.61m | 5:54PM0.45m | 6:15AM0.46m | 6:54PM0.25m | 7:08AM0.30m | 7:44PM0.08m | ||||||||
 |  |  | | | | | | | | | | | | | | | | | | |
 | — | — | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — |
 | 8:43 | — | — | 8:42 | — | — | 8:40 | — | — | 8:40 | — | — | 8:39 | — | — | 8:38 | — | — | 8:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 22 | 23 | 21 | 22 | 23 | 21 | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 22 | 21 | 21 | 22 | 21 |
Feels °C | 20 | 19 | 19 | 20 | 18 | 20 | 20 | 19 | 21 | 20 | 20 | 20 | 19 | 19 | 18 | 19 | 18 | 18 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 9 | NW 8 | NW 8 | N 9 | NW 8 | WNW 8 | WNW 7 | WNW 7 | NW 7 | WNW 10 | NW 11 | NW 10 |
| kJ | 64 | 40 | 38 | 37 | 35 | 32 | 32 | 31 | 20 | 18 | 17 | 27 | 15 | 11 | 5 | 5 | 2 | 10 | 30 | 25 |
Swell 2 Height (m) Direction Period (s) | NNW 12 | NNW 11 | N 12 | W 10 | — | — | — | — | — | — | — | NW 8 | — | N 12 | N 11 | NW 11 | NW 11 | NW 7 | NNW 14 | NNW 13 |
| kJ | 14 | 40 | 11 | 2 | — | — | — | — | — | — | — | 16 | — | 3 | 9 | 5 | 5 | 2 | 19 | 35 |
Swell 3 Height (m) Direction Period (s) | N 11 | N 11 | N 12 | — | — | — | — | — | — | — | — | — | — | W 12 | W 12 | — | — | N 14 | NW 7 | W 7 |
| kJ | 2 | 2 | 3 | — | — | — | — | — | — | — | — | — | — | 3 | 3 | — | — | 4 | 2 | 1 |
Wind waves Height (m) Direction Period (s) | NE 8 | NE 7 | NE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 7 | NNE 8 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 |
| kJ | 418 | 529 | 767 | 620 | 531 | 604 | 585 | 540 | 650 | 540 | 481 | 452 | 415 | 417 | 428 | 390 | 338 | 330 | 273 | 220 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 330 | 259 | 259 | 330 | 231 | 38 | 259 | 38 | 392 | 259 | 392 | 259 | 259 | 259 | 331 | 331 | 259 | 259 | 512 | 259 |
Best forecast wave conditions in Lanzarote | ||||||||||||||||||||
Best forecast wave conditions in Spain (Africa) | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our San Juan surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the San Juan Surf forecast
The above surf forecast table for San Juan provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at San Juan can be found by selecting the local surf guide option on the grey menu. Our San Juan 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 (San Juan) 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 San Juan 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.
San Juan is 8 km (5 miles) from Teguise. If you plan a holiday in Lanzarote, look for hotels and other accommodation in Teguise. Teguise has rooms for a wide range of budgets as well as car hire and transport links.
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