Surf Forecasts:
San Juan surf forecast from 26 Aug 2026:
- Most powerful swell: Sunday 30 Aug, 1AM (local time) - 6ft (1.9m), 10s period, N swell with 711 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 1.9m 10s and forecast to arrive on Sunday (Aug 30) at 1AM. 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 15s period and expected on Monday (Aug 31) at 10AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Sun 30th Aug) | 6ft (1.9m) 10s |
Table - best surf conditions forecast for San Juan over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's cookin'.
Well, to be straight with you, the next 16 days are a tough stretch for surf. The first real recommendation doesn’t kick in until the 4th of September, so we’re looking at a gap of over a week with nothing worthwhile on offer. Before that, it's a whole lot of onshore wind and raw, junky conditions. We do get some size later, but the wind is a killer.
For that early part, from the 26th of August all the way through to the 3rd of September, the wind is hammering out of the north and northeast at 18 to 22 mph, sometimes even 25 mph. The swell builds from 3 ft up to over 7 ft, and the wave energy gets pretty serious – we’re talking moderate to strong energy here (values from 122 up to 658). But it’s all onshore, choppy, and unsurfable. You wouldn't want to be out there in that mess.
Things finally look up on Friday the 4th of September. San Juan (reef) is the only spot that gets a nod, and even then it's marginal. On the morning of the 4th, we have some clouds, a light 3 mph wind from the north – a slight air – that's cross-on. The swell is 4 ft from the north, with a period of 8 seconds. The water temperature is a touch warmer than normal at about 75°, which is nice. The combined energy is moderate (234). It’s rated as “marginal surf forecast or questionable tide conditions,” so you’d have to be keen and pick your moment. This is a reef break that's exposed to the north-northwest, and the swell direction is from the north, so that's a decent match. But it’s an expert-only wave, so don't paddle out if you're not on your game. Crowds are possible here sometimes.
After the 4th, the window closes again. The 5th and 6th of September see the swell dropping back down to around 3 ft and the north wind returning onshore, making it a write-off. From the 7th to the 10th of September, the swell rebuilds a bit, hitting 5 ft to 7 ft from the north-northeast, but it’s still accompanied by that onshore wind from the north or northeast at 12 to 18 mph. The wave energy is moderate to strong (values from 168 to 409), but the wind is just ruining it. For Friday the 10th at San Juan, the swell drops to 5 ft-6 ft and the wind lightens up a little to 12 mph from the north-northeast, which is still onshore. It's not enough to get excited about.
Overall, the only semi-decent surf in this whole period is on the morning of the 4th of September at San Juan. The rest is a hard pass unless you’re a kite surfer, because with that much side-to-onshore wind and a beach setup, it’s more interesting for them than for us.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Thu morning, min 21°C on Wed morning). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Sat afternoon, min 21°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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) | NNW 8 | NNW 8 | N 8 | N 5 | N 6 | N 6 | NNE 7 | NNE 8 | N 7 | N 7 | N 7 | N 10 | N 9 | N 9 | N 8 | N 7 | N 7 | NNE 7 | N 7 | N 7 | N 8 |
Wave Graph | |||||||||||||||||||||
112 | 85 | 57 | 52 | 116 | 171 | 419 | 561 | 636 | 491 | 439 | 711 | 541 | 455 | 294 | 225 | 218 | 212 | 278 | 411 | 504 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on |
High Tide | 1:35PM2.26m | 1:55AM2.13m | 2:06PM2.39m | 2:25AM2.24m | 2:37PM2.49m | 2:56AM2.31m | 3:08PM2.53m | 3:27AM2.35m | 3:40PM2.51m | 4:00AM2.34m | 4:14PM2.44m | 4:35AM2.28m | 4:51PM2.31m | ||||||||
Low Tide | 7:48PM0.30m | 7:52AM0.31m | 8:19PM0.18m | 8:22AM0.21m | 8:48PM0.10m | 8:53AM0.15m | 9:19PM0.07m | 9:25AM0.14m | 9:50PM0.08m | 9:59AM0.16m | 10:23PM0.14m | 10:36AM0.24m | 10:59PM0.26m | ||||||||
7:28 | — | — | 7:28 | — | — | 7:28 | — | — | 7:30 | — | — | 7:30 | — | — | 7:31 | — | — | 7:31 | — | — | |
— | 8:22 | — | — | 8:22 | — | — | 8:21 | — | — | 8:20 | — | — | 8:19 | — | — | 8:16 | — | — | 8:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 22 | 23 | 23 | 22 | 22 | 22 | 21 | 22 | 23 | 22 | 23 | 23 | 22 | 23 | 23 | 22 | 23 | 23 | 22 |
Feels °C | 20 | 20 | 21 | 23 | 20 | 18 | 17 | 18 | 17 | 19 | 20 | 21 | 21 | 21 | 21 | 22 | 22 | 20 | 20 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | NNW 8 | NNW 8 | N 8 | NW 8 | NNW 8 | N 13 | — | — | NNW 12 | NNW 11 | NNW 10 | N 12 | N 10 | W 13 | NW 12 | NNW 12 | NNW 11 | NNW 10 | NNW 12 | NNW 11 | S 14 |
112 | 85 | 57 | 3 | 24 | 3 | — | — | 140 | 121 | 144 | 47 | 117 | 3 | 6 | 28 | 88 | 107 | 14 | 24 | 4 | |
Swell 2 Height (m) Direction Period (s) | NW 9 | NE 4 | NW 9 | NW 9 | NW 8 | — | — | — | — | — | — | N 12 | — | — | — | NW 11 | NNW 8 | S 14 | S 14 | S 13 | — |
3 | 4 | 3 | 3 | 3 | — | — | — | — | — | — | 27 | — | — | — | 5 | 13 | 4 | 4 | 4 | — | |
Swell 3 Height (m) Direction Period (s) | — | NW 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 10 | S 14 | — | — | — | — |
— | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NE 4 | NE 4 | NE 4 | N 5 | N 6 | N 6 | NNE 7 | NNE 8 | N 7 | N 7 | N 7 | N 10 | N 9 | N 9 | N 8 | N 7 | N 7 | NNE 7 | N 7 | N 7 | N 8 |
7 | 6 | 3 | 52 | 116 | 171 | 419 | 561 | 636 | 491 | 439 | 711 | 541 | 455 | 294 | 225 | 218 | 212 | 278 | 411 | 504 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 38 | 519 | 38 | 38 | 519 | 330 | 331 | 334 | 330 | 331 | 231 | 331 | 231 | 256 | 38 | 231 | 231 | 251 | 251 | 251 | 251 |
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)
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.











