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Diria Surf Forecast
/ Guanacaste (28 surf breaks) /
Surf Forecasts:
Diria surfForecast / Guanacaste / Costa Rica
48hr Weather and Surf, issued 5 pm Sunday 10 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 11PM is: 1.1m 16s primary swell from a Southwest direction (forecast issued at 05:00pm May 10). An open ocean swell of 0.8m 12s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 3.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 May) | - | - |
| 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 35°C on Sun afternoon, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 10 | Monday 11 | Tuesday 12 | Wed 13 | |||||||||||||||||||||
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 | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
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 | SW 14 | SW 14 | SW 18 | SW 17 | SSW 17 | SW 16 | |
587 | 691 | 587 | 587 | 367 | 353 | 349 | 340 | 276 | 269 | 322 | 314 | 258 | 255 | 255 | 255 | 251 | 211 | 208 | 203 | 154 | 147 | 184 | 216 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | off | cross-off | cross-on | cross-on | cross | off | off | off | off | cross-off | on | cross-on | cross | cross-off | off | off | cross-off | cross-off | cross-off | |
High Tide | 8:53PM1.85m | 9:38AM1.95m | 9:57PM1.85m | 10:34AM2.07m | 11:00PM1.90m | 11:28AM2.22m | ||||||||||||||||||
Low Tide | 2:48PM0.85m | 3:11AM0.71m | 3:54PM0.80m | 4:07AM0.69m | 4:57PM0.69m | 5:04AM0.63m | ||||||||||||||||||
 |  | | | | | |  | |  | | | | | |  | | | | | | | | | |
 | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — |
 | 5:55 | — | — | — | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | 5:57 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 35 | 32 | 29 | 27 | 26 | 26 | 30 | 32 | 31 | 30 | 29 | 28 | 27 | 27 | 30 | 31 | 30 | 29 | 29 | 28 | 26 | 26 | 30 | 33 |
35 | 31 | 29 | 27 | 26 | 27 | 30 | 34 | 33 | 32 | 29 | 29 | 28 | 29 | 31 | 33 | 32 | 31 | 32 | 31 | 28 | 29 | 30 | 34 | |
Swell 1 Height (m) Direction Period (s) | 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 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 |
 kJ | 587 | 691 | 587 | 587 | 367 | 353 | 349 | 340 | 276 | 269 | 322 | 314 | 258 | 255 | 255 | 130 | 133 | 133 | 133 | 131 | 131 | 133 | 136 | 92 |
Swell 2 Height (m) Direction Period (s) | 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 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 |
| kJ | 148 | 146 | 146 | 187 | 187 | 134 | 130 | 127 | 125 | 123 | 112 | 102 | 130 | 128 | 128 | 255 | 251 | 211 | 208 | 203 | 151 | 147 | 147 | 144 |
Swell 3 Height (m) Direction Period (s) | SSW 18 | N 5 | NNE 4 | SW 11 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | N 4 | N 4 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | NNW 4 | N 4 | SW 18 | SW 18 | SW 18 | SW 17 | SSW 17 | SW 16 |
| kJ | 102 | 10 | 6 | 20 | 89 | 87 | 87 | 51 | 83 | 78 | 3 | 3 | 42 | 42 | 42 | 42 | 6 | 3 | 82 | 81 | 154 | 147 | 184 | 216 |
Wind waves Height (m) Direction Period (s) | N 5 | — | — | — | — | N 4 | NE 3 | N 4 | — | — | — | — | N 4 | N 8 | N 3 | N 4 | — | — | — | — | N 3 | NE 3 | NNE 3 | N 6 |
| kJ | 16 | — | — | — | — | 1 | 2 | 3 | — | — | — | — | 1 | 5 | 1 | 1 | — | — | — | — | 1 | 2 | 4 | 21 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 9 | 1 | 0 | 0 | 0 | 0 | 0 | 9 | 9 | 11 | 0 | 0 | 0 | 0 | 11 | 0 |
Best forecast wave conditions in Guanacaste | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
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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