
Surf Forecasts:
San Juan surf forecast from 12 Jul 2026:
- Most powerful swell: Sunday 19 Jul, 1PM (local time) - 8ft (2.4m), 8s period, NNE swell with 819 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 Sunday (Jul 19) at 1PM. 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 | 1PM (Sun 19th Jul) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for San Juan over the next 16 days.
Alright folks, Rusty here. Let’s be straight with you – I’ve had a good look at the charts for San Juan, and it’s a tough run ahead. We’re not looking at any real standout sessions here, just a lot of wind and messy conditions on offer, so keep the expectations low.
The water temp is sitting at 73°, which is a touch warmer than usual for this time of year, so you won’t need the thickest wetsuit, but that’s about the only easy-going thing going on.
From the start on Sunday the 12th, and right through the first week, it’s onshore breezes all the way. Sure, there’s a bit of swell showing up from the NNW, around 3 ft to 3 ft, but it's blown out and choppy. The wave energy is weak to moderate at best – we’re looking at combined energy readings between 83 and 212 (for reference, that’s on the low side), and short periods of 8 to 10 seconds mean the waves lack any real grunt or shape. It’s basically a washing machine out there.
That big stretch from the 15th onward into the second week is just frustrating. The swell builds up steadily, hitting 6 ft and then pushing past 8 ft by the 19th and onwards, but the wind is relentless – mostly strong, fresh to strong breezes from the N and NNE. The energy numbers climb high, hitting 1001 at one point on the afternoon of the 19th, which is strong, but with onshore winds pinning everything down, it’s a messy, lumpy ocean. Even when the swell looks decent, the quality is poor for paddle surfing. Honestly, with these cross-onshore setups kicking up chop, it's looking more like a kite-surfing window than anything for a shortboard.
The only real bright spot? Maybe towards the very end, on Monday the 27th, we see the wind drop back a notch to moderate breezes, and the swell drops a little to 5 ft. But even then, it's still onshore. There’s no session here that I’d call a winner for clean, lined-up waves. Hang tight, folks; forecasts can change, but for now, don’t rush to paddle out.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Mon afternoon, min 20°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Wed morning, min 20°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
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 10 | NW 8 | NW 8 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNE 5 | NNE 6 | NNE 6 | NNE 7 | NNE 7 | NNE 7 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 |
Wave Graph | |||||||||||||||||||||
154 | 184 | 162 | 165 | 161 | 111 | 76 | 36 | 51 | 67 | 123 | 159 | 362 | 397 | 423 | 507 | 464 | 494 | 561 | 561 | 599 | |
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 | cross-on | on | on | on | on |
High Tide | 12:38PM2.25m | 1:10AM2.21m | 1:32PM2.42m | 2:03AM2.31m | 2:22PM2.56m | 2:53AM2.36m | 3:09PM2.64m | 3:39AM2.36m | 3:55PM2.66m | 4:24AM2.30m | 4:40PM2.59m | 5:09AM2.21m | 5:24PM2.45m | ||||||||
Low Tide | 6:55PM0.25m | 7:14AM0.26m | 7:50PM0.10m | 8:04AM0.17m | 8:40PM-0.01m | 8:51AM0.12m | 9:28PM-0.04m | 9:36AM0.12m | 10:14PM-0.01m | 10:19AM0.17m | 10:58PM0.09m | 11:02AM0.27m | 11:42PM0.23m | ||||||||
7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | |
— | 8:55 | — | — | 8:54 | — | — | 8:54 | — | — | 8:54 | — | — | 8:53 | — | — | 8:53 | — | — | 8:53 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 21 | 22 | 23 | 21 | 21 | 22 | 21 | 22 | 22 | 21 | 22 | 22 | 21 | 22 | 22 | 21 | 22 | 22 | 21 |
Feels °C | 21 | 20 | 20 | 23 | 22 | 20 | 21 | 20 | 21 | 20 | 20 | 19 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | NNW 10 | NW 8 | NW 8 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NW 9 | WNW 9 | NW 8 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 |
154 | 184 | 162 | 165 | 161 | 111 | 76 | 36 | 51 | 22 | 31 | 14 | 16 | 31 | 30 | 13 | 13 | 6 | 6 | 6 | 6 | |
Swell 2 Height (m) Direction Period (s) | WNW 8 | S 13 | S 13 | — | — | W 13 | NW 11 | N 9 | WNW 10 | W 9 | N 8 | WNW 10 | NW 7 | — | — | — | — | — | — | — | — |
51 | 3 | 3 | — | — | 3 | 5 | 15 | 10 | 2 | 1 | 18 | 12 | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | N 7 | S 11 | WNW 7 | WNW 7 | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | 1 | 3 | 5 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NE 5 | NE 5 | NE 5 | — | — | NE 3 | NE 3 | NE 4 | NE 4 | NNE 5 | NNE 6 | NNE 6 | NNE 7 | NNE 7 | NNE 7 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 |
7 | 7 | 4 | — | — | 3 | 2 | 8 | 12 | 67 | 123 | 159 | 362 | 397 | 423 | 507 | 464 | 494 | 561 | 561 | 599 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 38 | 251 | 9 | 9 | 38 | 38 | 9 | 38 | 38 | 38 | 330 | 38 | 392 | 334 | 231 | 231 | 256 | 330 | 231 | 256 | 231 |
Best forecast wave conditions in Lanzarote | |||||||||||||||||||||
Best forecast wave conditions in Spain (Africa) | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.










