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Isla Santa Maria Surf Forecast
/ Antofagasta (21 surf breaks) /
Surf Forecasts:
Isla Santa Maria surfForecast / Antofagasta / Chile
48hr Weather and Surf, issued 1 am Monday 18 May 2026 -04Forecast update in hr min s Forecast update imminent
Isla Santa Maria surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Isla Santa Maria sea temperature is
17.7° C
(Which is slightly cooler than normal)How big are the waves at Isla Santa Maria today?
The current surf forecast for Isla Santa Maria at 5AM is: 1.5m 15s primary swell from a South-southwest direction and 1.7m 10s secondary swell from a South-southwest direction (forecast issued at 01:00am May 18). The wind direction is predicted to be cross-offshore.
| Time (-04) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 5ft (1.6m) | 15s |
| Afternoon (18 May) | 5ft (1.5m) | 14s |
| Evening (18 May) | 5.5ft (1.7m) | 14s |
Table - waves today at Isla Santa Maria. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 17°C on Wed afternoon, min 14°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 16 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | |
1178 | 987 | 1087 | 961 | 886 | 1624 | 1422 | 710 | 607 | 553 | 472 | 465 | 362 | 690 | 1184 | 722 | 863 | 1008 | 1083 | 1083 | 942 | 817 | 690 | 659 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross-off | cross-off | glassy | |
High Tide | 10:18AM1.37m | 10:51PM0.73m | 11:11AM1.36m | 11:50PM0.69m | 12:07PM1.32m | |||||||||||||||||||
Low Tide | 3:34AM0.05m | 5:12PM0.01m | 4:22AM0.08m | 6:11PM0.01m | 5:15AM0.12m | 7:12PM0.04m | ||||||||||||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | | | | |
 | — | 7:09 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:11 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:06 | — | — | — | — | — | — | — | 6:06 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 15 | 15 | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 15 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 16 | 17 | 16 | 14 | 14 |
12 | 12 | 12 | 13 | 13 | 12 | 13 | 13 | 13 | 12 | 13 | 14 | 14 | 13 | 13 | 14 | 14 | 13 | 13 | 14 | 15 | 15 | 13 | 14 | |
Swell 1 Height (m) Direction Period (s) | SSW 10 | SSW 10 | SSW 15 | SSW 10 | SSW 10 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 10 | SSW 13 | SSW 16 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 |
 kJ | 548 | 548 | 1087 | 483 | 455 | 1624 | 1422 | 710 | 607 | 553 | 472 | 465 | 226 | 690 | 1184 | 722 | 863 | 1008 | 1083 | 1083 | 942 | 817 | 690 | 659 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 10 | SSW 14 | SSW 14 | NW 15 | WNW 15 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 13 | S 16 | NW 13 | SSW 16 | NW 13 | NW 13 | NW 13 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 |
| kJ | 1178 | 987 | 437 | 961 | 886 | 33 | 21 | 318 | 331 | 269 | 226 | 226 | 362 | 134 | 45 | 206 | 45 | 44 | 44 | 22 | 20 | 20 | 19 | 19 |
Swell 3 Height (m) Direction Period (s) | NW 15 | NW 15 | NW 15 | NW 15 | NW 15 | WNW 12 | WNW 12 | WNW 11 | WNW 13 | WNW 13 | NW 13 | NW 13 | SSW 16 | SW 16 | WSW 12 | NW 13 | WSW 11 | WSW 11 | WSW 11 | NW 13 | NW 12 | NW 12 | WNW 12 | WNW 12 |
| kJ | 54 | 54 | 54 | 54 | 54 | 14 | 13 | 12 | 18 | 17 | 28 | 28 | 105 | 127 | 14 | 45 | 23 | 23 | 23 | 27 | 24 | 23 | 14 | 14 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 61 | 65 | 360 | 360 | 360 | 360 | 61 | 0 | 61 | 0 | 0 | 360 | 360 | 360 | 345 | 0 | 61 | 61 | 0 | 360 | 184 | 0 | 0 | 0 |
Best forecast wave conditions in Antofagasta | ||||||||||||||||||||||||
Best forecast wave conditions in Chile | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
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Ocean Swells (m)- Wind Speed (km/h)
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