Surf Forecasts:
San Juan surf forecast from 9 Jul 2026:
- Most powerful swell: Thursday 16 Jul, 7AM (local time) - 8ft (2.5m), 8s period, NNE swell with 703 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 2.5m 8s and forecast to arrive on Thursday (Jul 16) at 7AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 13s period and expected on Sunday (Jul 12) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Thu 16th Jul) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for San Juan over the next 16 days.
Alright folks, Rusty here. Let’s get into it for San Juan.
Right off the bat, I gotta be straight with you – the next week and a half is a tough watch. We’re looking at a long stretch of poor surf conditions with light, short-period, onshore wind-generated slop. The combined energy is weak, and the wind is almost always onshore or cross-onshore, making everything choppy. There’s a gap of no real surf from the start until about Sunday, July 12th, when we see a slight bump in energy, but it’s still messy.
The real story starts to build around Wednesday, July 15th, when the swell starts to push up. The wind remains onshore, but the swell keeps building. By Thursday, July 16th, we’re looking at 8ft of NNE swell with a period of 8 seconds and a combined energy of 891 – that’s some serious juice. However, with a steady 22 mph onshore breeze, it’s going to be a choppy, blown-out mess. This is expert territory only; for a beginner, that’s way too much size and wind. The setup is a beach and reef, so with that much wind and swell, it might actually be more interesting for kite surfing than paddle surfing.
The standout period, if you can call it that, is the weekend of July 18th and 19th. We’ve got consistent 8ft to 7ft NNE swell, with the energy sitting in the high 800s to 600s. The wind is still onshore, but it drops a bit to 16 mph on Sunday, which is slightly more manageable. The crowd profile at San Juan (reef, consistent, expert) is listed as "sometimes" busy, so you might have some company, but with these conditions, it’ll probably be the diehards only. The optimum swell direction is NNW, and we’re getting NNE, so it’s not a perfect match, but the size is there.
The swell then backs off slowly through the final week. The period stays short (6-7 seconds), so while the heights are still 5ft to 6ft, it’s not going to have the same punch or shape. A long period groundswell this is not. The onshore wind just never gives up, so the surf quality will remain poor.
To be honest, there isn’t a truly good day to highlight. The best of a bad bunch is the morning of Saturday, July 18th, for the biggest size, but it’s wild. The energy is strong (875), but the wind is a fresh breeze. If you’re an expert with a big-wave gun and a tolerance for a washing machine, that’s your window. No one else needs to bother.
Stay tuned, forecasts can change. But right now, it’s a blank run for the area.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Wed night, min 19°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sat night, min 19°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||
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) | N 5 | N 5 | N 5 | NNE 5 | N 5 | NW 5 | NE 5 | NW 8 | NNW 12 | NW 10 | NW 9 | NW 8 | NNW 9 | NNW 9 | NW 9 | NNW 8 | NNW 8 | NNE 5 | NNE 6 | NNE 6 | NNE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 53 | 56 | 56 | 31 | 30 | 20 | 7 | 11 | 28 | 100 | 164 | 138 | 151 | 151 | 107 | 84 | 56 | 51 | 200 | 271 | 516 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | on | cross-on | on | on | cross-on | on | on | on | on | on | on | on | on | on | on | on | on | on |
High Tide | 9:18AM1.88m | 9:45PM1.94m | 10:30AM1.96m | 11:01PM1.99m | 11:38AM2.09m | 00:10AM2.09m | 12:38PM2.25m | 1:10AM2.21m | 1:32PM2.42m | 2:03AM2.31m | 2:22PM2.56m | 2:53AM2.36m | 3:09PM2.64m | 3:39AM2.36m | |||||||
Low Tide | 3:25PM0.67m | 4:05AM0.55m | 4:43PM0.58m | 5:15AM0.48m | 5:53PM0.42m | 6:18AM0.37m | 6:55PM0.25m | 7:14AM0.26m | 7:50PM0.10m | 8:04AM0.17m | 8:40PM-0.01m | 8:51AM0.12m | 9:28PM-0.04m | ||||||||
 | |  | | | | | | | | | | | | | | | | | | | |
 | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — |
 | — | 8:55 | — | — | 8:55 | — | — | 8:55 | — | — | 8:55 | — | — | 8:54 | — | — | 8:54 | — | — | 8:54 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 21 | 21 | 21 | 22 | 22 | 22 | 21 | 21 | 20 | 21 | 21 | 20 | 20 | 21 | 20 | 21 | 21 | 20 |
Feels °C | 20 | 19 | 18 | 18 | 20 | 20 | 22 | 22 | 24 | 20 | 19 | 20 | 20 | 19 | 19 | 17 | 19 | 18 | 18 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | NW 10 | NW 9 | NW 9 | NW 4 | NW 9 | NW 5 | NE 5 | NNE 5 | NW 8 | NW 10 | NW 9 | NW 8 | NNW 9 | NNW 9 | NW 9 | NNW 8 | NNW 8 | NNW 8 | WNW 9 | WNW 9 | NW 9 |
| kJ | 14 | 14 | 13 | 4 | 20 | 18 | 7 | 5 | 18 | 100 | 164 | 138 | 151 | 151 | 107 | 84 | 56 | 51 | 8 | 16 | 20 |
Swell 2 Height (m) Direction Period (s) | NW 7 | NW 6 | W 6 | NW 9 | WNW 6 | NW 9 | NNW 5 | NW 8 | NNW 12 | NW 8 | S 13 | S 13 | S 12 | S 12 | N 7 | W 11 | NW 11 | NW 10 | — | — | — |
| kJ | 2 | 2 | 1 | 20 | 3 | 12 | 5 | 11 | 28 | 58 | 3 | 3 | 3 | 3 | 1 | 2 | 5 | 4 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | N 13 | NW 12 | NW 5 | WNW 5 | WNW 5 | — | — | — | — | — | — | — | — | NW 7 | — | — | — |
| kJ | — | — | — | — | 3 | 6 | 7 | 3 | 2 | — | — | — | — | — | — | — | — | 2 | — | — | — |
Wind waves Height (m) Direction Period (s) | N 5 | N 5 | N 5 | NNE 5 | N 5 | NNE 5 | — | NNW 5 | N 4 | NNW 8 | NNE 4 | NNE 4 | NNE 4 | NNE 4 | NNE 4 | NNE 4 | NE 4 | NNE 5 | NNE 6 | NNE 6 | NNE 7 |
| kJ | 53 | 56 | 56 | 31 | 30 | 20 | — | 4 | 10 | 84 | 6 | 5 | 5 | 5 | 6 | 13 | 28 | 44 | 200 | 271 | 516 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 330 | 326 | 330 | 256 | 256 | 70 | 251 | 149 | 9 | 38 | 251 | 38 | 38 | 251 | 38 | 38 | 38 | 38 | 256 | 512 | 259 |
Best forecast wave conditions in Lanzarote | |||||||||||||||||||||
Best forecast wave conditions in Spain (Africa) | |||||||||||||||||||||
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)
FREE! Surf-Forecast.com widget for your website
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.
Nearest