Surf Forecasts:
San Juan surf forecast from 20 Sep 2026:
- Best quality surf: Saturday 26 Sep, 1PM (local time) - 3ft (0.9m), 17s period, NNW swell with glassy winds.
- Most powerful swell: Sunday 27 Sep, 1AM (local time) - 4.5ft (1.4m), 14s period, NNW swell with 796 kJ wave energy.
- Next surfable swell (1★+): Monday 21 Sep, 10AM (local time) - 2.5ft (0.8m), 12s period with NNW swell.
Best Forecast Surf Conditions for San Juan this week:
The surf forecast for San Juan over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 21) at 10AM. The primary swell is predicted to be 0.8m and 12s period with a secondary swell of 0.7m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at San Juan in the next 16 days are 1.4m 14s and forecast to arrive on Sunday (Sep 27) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Mon 21st Sep) | 2.5ft (0.8m) 12s |
| Best Surf | 1PM (Sat 26th Sep) | 3ft (0.9m) 17s |
| Most Powerful | 1AM (Sun 27th Sep) | 4.5ft (1.4m) 14s |
Table - best surf conditions forecast for San Juan over the next 16 days.
Short Range ForecastMostly dry. Warm (max 25°C on Tue morning, min 21°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Wed afternoon, min 23°C on Tue night). Winds increasing (light winds from the NNE on Tue night, fresh winds from the N by Fri afternoon). | ||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | |||||||||||||||
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 14 | NNW 13 | NNW 13 | NNW 12 | N 11 | NNW 11 | NNW 12 | NNW 12 | NNW 11 | NW 16 | NW 16 | NW 14 | NW 13 | NW 13 | NW 12 | NNW 12 | NNW 12 | NNW 11 | NNW 17 | NNW 16 | NNW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 207 | 184 | 173 | 199 | 242 | 194 | 136 | 123 | 81 | 219 | 291 | 346 | 336 | 336 | 244 | 255 | 251 | 163 | 475 | 612 | 796 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | on | cross-on | on | on | on | on | on | on | on | on | cross-on | cross-on | glassy | glassy | cross | cross-on |
High Tide | 9:39AM1.60m | 10:39PM1.53m | 11:01AM1.74m | 11:38PM1.69m | 11:50AM1.92m | 00:18AM1.86m | 12:27PM2.11m | 00:51AM2.04m | 1:00PM2.28m | 1:22AM2.20m | 1:32PM2.42m | 1:54AM2.33m | 2:05PM2.52m | 2:26AM2.43m | |||||||
Low Tide | 4:23PM0.92m | 4:38AM0.93m | 5:29PM0.77m | 5:35AM0.77m | 6:10PM0.59m | 6:14AM0.60m | 6:43PM0.41m | 6:48AM0.43m | 7:14PM0.25m | 7:20AM0.28m | 7:44PM0.11m | 7:53AM0.16m | 8:15PM0.02m | ||||||||
 | |  | | | | | | |  |  |  | | | | | | | | | | |
 | 7:41 | — | — | 7:41 | — | — | 7:41 | — | — | 7:41 | — | — | 7:43 | — | — | 7:43 | — | — | 7:43 | — | — |
 | — | 7:53 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:49 | — | — | 7:46 | — | — | 7:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 22 | 23 | 24 | 22 | 25 | 25 | 23 | 25 | 26 | 24 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 23 |
Feels °C | 25 | 25 | 23 | 25 | 24 | 22 | 25 | 24 | 23 | 24 | 26 | 23 | 25 | 26 | 25 | 22 | 21 | 26 | 27 | 27 | 24 |
Swell 1 Height (m) Direction Period (s) | N 8 | N 8 | N 8 | NNW 12 | NE 7 | NNW 11 | NNW 10 | NNW 12 | NNW 11 | NNW 12 | NW 16 | NW 14 | NW 13 | NW 13 | NW 12 | NNW 12 | NNW 12 | NNE 5 | NNW 17 | NNW 16 | NNW 14 |
| kJ | 190 | 125 | 94 | 199 | 26 | 194 | 100 | 123 | 81 | 125 | 291 | 346 | 336 | 336 | 244 | 255 | 251 | 53 | 475 | 612 | 796 |
Swell 2 Height (m) Direction Period (s) | NNW 14 | NNW 13 | NNW 13 | N 7 | NW 9 | NE 7 | NNW 12 | NE 8 | NNW 13 | NW 16 | NNW 11 | NNW 11 | NNE 6 | W 7 | NNW 15 | NE 5 | — | NNW 11 | NNW 11 | NNW 10 | N 6 |
| kJ | 207 | 184 | 173 | 40 | 3 | 41 | 136 | 14 | 69 | 219 | 85 | 66 | 4 | 1 | 42 | 21 | — | 163 | 105 | 73 | 15 |
Swell 3 Height (m) Direction Period (s) | — | NE 8 | NE 8 | NNE 8 | N 16 | NW 9 | NE 8 | NW 9 | NE 8 | NW 12 | N 7 | WNW 11 | — | — | — | N 6 | — | NW 21 | NNE 6 | NNE 6 | — |
| kJ | — | 3 | 15 | 39 | 5 | 3 | 20 | 21 | 15 | 6 | 8 | 11 | — | — | — | 20 | — | 18 | 30 | 18 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | N 11 | NNE 4 | N 7 | N 7 | NNE 4 | NNE 7 | NE 4 | NE 5 | NE 5 | NE 6 | NE 5 | — | NNE 5 | — | — | — | — |
| kJ | — | — | — | — | 242 | 18 | 8 | 51 | 26 | 62 | 18 | 31 | 34 | 30 | 38 | — | 35 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 9 | 10 | 1 | 212 | 33 | 10 | 259 | 38 | 9 | 38 | 9 | 33 | 38 | 38 | 259 | 212 | 0 | 0 | 10 | 10 |
Best forecast wave conditions in Lanzarote | |||||||||||||||||||||
Best forecast wave conditions in Spain (Africa) | |||||||||||||||||||||
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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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