Surf Forecasts:
How big are the waves at San Juan today (31 Jul):
- Morning surf: Morning surf (31 Jul, local time) - 5ft (1.6m), 7s period with NNE swell.
- Afternoon surf: Afternoon surf (31 Jul, local time) - 5ft (1.5m), 7s period with NNE swell.
- Evening surf: Evening surf (31 Jul, local time) - 4.5ft (1.4m), 7s period with NNE swell.
The current surf forecast for San Juan at 9AM is: 1.6m 7s primary swell from a North-northeast direction and 0.2m 9s secondary swell from a West-northwest direction, 0.2m 11s secondary swell from a North direction (forecast issued at 12:00am July 31). The wind direction is predicted to be onshore.
| Time (WEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | 5ft (1.6m) | 7s |
| Afternoon (31 Jul) | 5ft (1.5m) | 7s |
| Evening (31 Jul) | 4.5ft (1.4m) | 7s |
Table - waves today at San Juan. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 24°C on Sat morning, min 20°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||||||||||
1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | N 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 270 | 243 | 229 | 235 | 235 | 197 | 114 | 181 | 153 | 124 | 124 | 114 | 93 | 111 | 111 | 129 | 137 | 123 | 127 | 151 | 172 | 165 | 170 | 189 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on | on | on | on |
High Tide | 3:24AM2.17m | 3:37PM2.42m | 3:56AM2.19m | 4:09PM2.41m | 4:29AM2.18m | 4:42PM2.36m | ||||||||||||||||||
Low Tide | 9:20AM0.26m | 9:49PM0.21m | 9:52AM0.26m | 10:21PM0.21m | 10:25AM0.29m | |||||||||||||||||||
 | |  |  |  | | | | | | | | | | | | | | | | | |  | | |
 | — | — | 7:13 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — |
 | — | — | — | — | — | — | 8:46 | — | — | — | — | — | — | — | 8:45 | — | — | — | — | — | — | — | 8:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 20 | 21 | 22 | 23 | 23 | 21 | 21 | 21 | 21 | 23 | 24 | 24 | 23 | 22 | 21 | 21 | 21 | 23 | 23 | 23 | 22 | 22 |
Feels °C | 18 | 20 | 19 | 20 | 21 | 24 | 23 | 21 | 22 | 21 | 22 | 25 | 25 | 23 | 22 | 20 | 20 | 21 | 20 | 22 | 21 | 21 | 19 | 20 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 10 | WNW 9 | WNW 9 | N 10 | N 10 | NE 7 | NW 10 | NNE 7 | NNE 7 | WNW 10 | WNW 10 | NNE 7 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 10 |
| kJ | 9 | 9 | 8 | 8 | 9 | 8 | 79 | 54 | 153 | 124 | 83 | 83 | 93 | 81 | 80 | 75 | 73 | 73 | 54 | 53 | 49 | 48 | 48 | 63 |
Swell 2 Height (m) Direction Period (s) | N 11 | N 11 | N 11 | N 11 | WNW 9 | WNW 9 | NW 11 | N 10 | WNW 10 | WNW 10 | N 10 | N 10 | WNW 10 | N 9 | N 9 | N 10 | N 10 | N 10 | N 10 | N 11 | N 11 | N 10 | N 10 | NW 10 |
| kJ | 10 | 9 | 9 | 9 | 8 | 8 | 30 | 8 | 68 | 63 | 8 | 7 | 83 | 7 | 7 | 2 | 7 | 7 | 8 | 2 | 9 | 8 | 17 | 4 |
Swell 3 Height (m) Direction Period (s) | — | N 11 | W 9 | NW 12 | NW 12 | WNW 11 | N 10 | NW 11 | N 10 | N 10 | N 10 | N 10 | N 10 | — | — | — | N 12 | N 12 | — | N 11 | N 9 | N 9 | — | — |
| kJ | — | 9 | 2 | 6 | 6 | 12 | 8 | 4 | 8 | 7 | 2 | 2 | 7 | — | — | — | 3 | 3 | — | 2 | 2 | 2 | — | — |
Wind waves Height (m) Direction Period (s) | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | N 7 | NNE 7 | — | — | NNE 7 | NNE 7 | — | NNE 7 | NNE 7 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 7 |
| kJ | 270 | 243 | 229 | 235 | 235 | 197 | 114 | 181 | — | — | 124 | 114 | — | 111 | 111 | 129 | 137 | 123 | 127 | 151 | 172 | 165 | 170 | 189 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 331 | 334 | 231 | 259 | 49 | 335 | 38 | 38 | 33 | 149 | 38 | 10 | 9 | 231 | 330 | 231 | 38 | 149 | 16 | 17 | 326 | 326 | 38 | 38 |
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)
Latest Updates
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.
Nearest