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Diria Surf Forecast
/ Guanacaste (28 surf breaks) /
Surf Forecasts:
Diria surfForecast / Guanacaste / Costa Rica
48hr Weather and Surf, issued 11 am Monday 11 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
30.2° C
(Which is 1.4°C warmer than normal for this time of year)How big are the waves at Diria today?
The current surf forecast for Diria at 8PM is: 0.9m 15s primary swell from a Southwest direction (forecast issued at 11:00am May 11). An open ocean swell of 0.7m 11s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 3ft (0.9m) | 16s |
| Afternoon (11 May) | 2.5ft (0.8m) | 15s |
| Evening (11 May) | 3ft (0.9m) | 15s |
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 34°C on Wed afternoon, min 26°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 11 | Tuesday 12 | Wednesday 13 | Thu 14 | |||||||||||||||||||||
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 | 9 PM | 12 AM | 3 AM | 6 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
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 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | |
349 | 340 | 276 | 269 | 322 | 314 | 258 | 255 | 255 | 255 | 251 | 211 | 208 | 203 | 154 | 147 | 184 | 216 | 216 | 306 | 477 | 516 | 558 | 558 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-on | cross-on | cross | off | off | off | cross-off | cross-off | on | cross-on | cross | cross-off | off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | off | off | off | off | |
High Tide | 9:38AM1.95m | 9:57PM1.85m | 10:34AM2.07m | 11:00PM1.90m | 11:28AM2.22m | 11:58PM2.00m | ||||||||||||||||||
Low Tide | 3:54PM0.80m | 4:07AM0.69m | 4:57PM0.69m | 5:04AM0.63m | 5:54PM0.52m | 5:58AM0.52m | ||||||||||||||||||
 | |  |  | |  | | | |  | | | | | | | | | | | | | | | |
 | 5:22 | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — |
 | — | — | 5:55 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | 5:57 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 30 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 30 | 32 | 30 | 29 | 28 | 28 | 27 | 26 | 30 | 32 | 34 | 32 | 30 | 28 | 27 | 27 |
30 | 34 | 32 | 32 | 30 | 29 | 28 | 27 | 31 | 34 | 32 | 31 | 30 | 31 | 30 | 29 | 31 | 33 | 36 | 33 | 31 | 29 | 29 | 30 | |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | 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 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 |
 kJ | 349 | 340 | 276 | 269 | 322 | 314 | 258 | 255 | 255 | 255 | 133 | 135 | 133 | 131 | 131 | 133 | 136 | 92 | 92 | 306 | 477 | 516 | 558 | 558 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 14 | S 10 | S 10 | S 10 | S 10 | S 10 |
| kJ | 130 | 127 | 125 | 123 | 112 | 102 | 125 | 128 | 128 | 130 | 251 | 211 | 208 | 203 | 151 | 147 | 147 | 144 | 147 | 94 | 141 | 138 | 135 | 104 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 15 | N 4 | W 8 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | NNW 4 | SW 19 | SW 18 | SW 18 | SW 18 | SW 17 | SSW 17 | SW 16 | SW 16 | SSW 13 | NNE 4 | NNE 4 | N 4 | NW 15 |
| kJ | 87 | 51 | 83 | 78 | 3 | 1 | 42 | 42 | 42 | 42 | 4 | 55 | 82 | 81 | 154 | 147 | 184 | 216 | 216 | 113 | 6 | 3 | 1 | 9 |
Wind waves Height (m) Direction Period (s) | NE 4 | — | — | — | — | NNE 4 | N 8 | N 8 | N 3 | NNW 5 | — | — | — | — | — | N 7 | NNW 11 | N 5 | N 4 | — | — | — | — | — |
| kJ | 5 | — | — | — | — | 2 | 5 | 5 | 1 | 5 | — | — | — | — | — | 1 | 12 | 8 | 13 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 1 | 9 | 56 | 0 | 0 | 0 | 0 | 0 | 9 | 9 | 9 | 0 | 0 | 0 | 0 | 1 | 17 | 0 | 1 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Guanacaste | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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