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Diria Surf Forecast
/ Guanacaste (28 surf breaks) /
Surf Forecasts:
Diria surfForecast / Guanacaste / Costa Rica
48hr Weather and Surf, issued 11 pm Saturday 09 May 2026 CSTForecast update in hr min s Forecast update imminent
Diria surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Diria sea temperature is
30.1° C
(Which is 1.3°C warmer than normal for this time of year)How big are the waves at Diria today?
The current surf forecast for Diria at 3AM is: 1.2m 18s primary swell from a Southwest direction (forecast issued at 11:00pm May 09). An open ocean swell of 0.9m 13s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 May) | 3.5ft (1.1m) | 16s |
| Afternoon (10 May) | 3.5ft (1.1m) | 16s |
| Evening (10 May) | 3.5ft (1.1m) | 16s |
Table - waves today at Diria. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 33°C on Sun morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 10 | Monday 11 | Tuesday 12 | ||||||||||||||||||||||
9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Swell Height Map |  |    |    |    | ||||||||||||||||||||
SSW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | |
1021 | 895 | 895 | 679 | 595 | 587 | 587 | 691 | 587 | 587 | 367 | 353 | 349 | 340 | 276 | 269 | 322 | 314 | 258 | 255 | 255 | 255 | 251 | 211 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | on | cross-on | cross | cross-off | off | off | off | cross-off | cross-on | cross-on | cross-off | |
High Tide | 8:41AM1.89m | 8:53PM1.85m | 9:38AM1.95m | 9:57PM1.85m | 10:34AM2.07m | |||||||||||||||||||
Low Tide | 2:16AM0.68m | 2:48PM0.85m | 3:11AM0.71m | 3:54PM0.80m | 4:07AM0.69m | 4:57PM0.69m | ||||||||||||||||||
 |  | |  | | |  | | | | | | | | | | | | | | |  | | | |
 | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — |
 | — | — | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:57 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 30 | 28 | 27 | 27 | 31 | 33 | 33 | 31 | 29 | 27 | 26 | 26 | 30 | 32 | 30 | 29 | 29 | 28 | 27 | 27 | 30 | 32 | 30 | 30 |
31 | 28 | 28 | 29 | 31 | 34 | 35 | 33 | 29 | 28 | 27 | 27 | 31 | 34 | 31 | 31 | 31 | 28 | 29 | 30 | 31 | 34 | 32 | 32 | |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | S 10 | S 10 |
 kJ | 1021 | 895 | 895 | 679 | 595 | 587 | 587 | 691 | 587 | 587 | 367 | 353 | 349 | 340 | 276 | 269 | 322 | 314 | 258 | 255 | 255 | 255 | 133 | 133 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | S 13 | S 13 | S 13 | S 12 | S 11 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | SW 14 | SW 14 |
| kJ | 229 | 268 | 264 | 209 | 153 | 89 | 148 | 146 | 146 | 146 | 190 | 137 | 130 | 127 | 125 | 123 | 112 | 102 | 127 | 130 | 128 | 130 | 251 | 211 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 12 | SW 12 | SSW 13 | SSW 18 | N 4 | N 4 | SW 11 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | NNE 4 | W 8 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | N 4 |
| kJ | — | — | — | 75 | 37 | 55 | 102 | 10 | 6 | 20 | 89 | 87 | 87 | 51 | 83 | 78 | 3 | 1 | 42 | 42 | 42 | 42 | 21 | 9 |
Wind waves Height (m) Direction Period (s) | — | — | — | NNE 3 | NNE 4 | N 4 | N 5 | — | — | NE 4 | — | — | N 4 | N 4 | NNW 3 | — | — | NE 4 | — | N 8 | N 4 | N 4 | N 4 | — |
| kJ | — | — | — | 4 | 7 | 9 | 10 | — | — | 4 | — | — | 1 | 3 | 2 | — | — | 4 | — | 5 | 1 | 6 | 9 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 1 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 9 | 9 | 0 | 0 | 0 | 0 | 0 | 9 | 9 | 0 |
Best forecast wave conditions in Guanacaste | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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