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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 Friday 29 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
30.3° C
(Which is 1.7°C warmer than normal for this time of year)How big are the waves at Diria today (29 May):
- Morning surf: Morning surf (29 May, local time) - 3ft (0.9m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (29 May, local time) - 2.5ft (0.7m), 14s period with SW swell.
- Evening surf: Evening surf (29 May, local time) - 2ft (0.6m), 14s period with SW swell.
The current surf forecast for Diria at 2PM is: 0.8m 14s primary swell from a Southwest direction and 0.1m 6s secondary swell from a Northwest direction (forecast issued at 11:00am May 29). An open ocean swell of 0.6m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 May) | 3ft (0.9m) | 14s |
| Afternoon (29 May) | 2.5ft (0.7m) | 14s |
| Evening (29 May) | 2ft (0.6m) | 14s |
Table - waves today at Diria. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 28mm), heaviest during Sat night. Warm (max 31°C on Sat morning, min 26°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Fri 29 | Saturday 30 | Sunday 31 | Mon 1 | |||||||||||||||||||||
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 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 17 | SW 13 | SW 13 | SW 13 | SW 21 | SW 21 | SW 21 | SW 20 | SW 20 | SW 19 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | |
308 | 331 | 200 | 203 | 167 | 164 | 313 | 295 | 493 | 290 | 257 | 257 | 548 | 543 | 533 | 660 | 746 | 959 | 1210 | 1475 | 1445 | 1326 | 1516 | 1634 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross | off | cross-off | off | off | off | off | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | off | glassy | on | on | cross-on | cross-off | glassy | glassy | glassy | |
High Tide | 1:22PM2.26m | 1:56AM2.02m | 2:03PM2.28m | 2:37AM2.06m | 2:42PM2.30m | 3:16AM2.08m | ||||||||||||||||||
Low Tide | 7:09AM0.60m | 7:49PM0.39m | 7:52AM0.56m | 8:28PM0.34m | 8:32AM0.53m | 9:07PM0.30m | ||||||||||||||||||
 | | | |  |  | |  |  | |  | |  |  | | | | | | | |  | | | |
 | 5:20 | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — |
 | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — | — | 6:00 |
— | — | — | — | — | — | — | — | — | — | 1 | 5 | 7 | 3 | 2 | 1 | 3 | 1 | 2 | 1 | 1 | — | 1 | — | |
Temp °C | 27 | 28 | 29 | 28 | 28 | 27 | 26 | 26 | 30 | 31 | 30 | 29 | 28 | 28 | 27 | 27 | 29 | 30 | 29 | 29 | 28 | 28 | 27 | 27 |
30 | 31 | 32 | 30 | 31 | 30 | 28 | 28 | 32 | 33 | 32 | 32 | 31 | 32 | 31 | 31 | 34 | 33 | 33 | 33 | 32 | 33 | 32 | 32 | |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 17 | S 17 | S 17 | SW 13 | S 16 | S 16 | S 16 | S 16 | S 15 | S 14 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 |
 kJ | 308 | 331 | 200 | 203 | 167 | 164 | 313 | 295 | 493 | 589 | 459 | 257 | 858 | 836 | 836 | 575 | 743 | 713 | 1210 | 1475 | 1445 | 1326 | 1516 | 1634 |
Swell 2 Height (m) Direction Period (s) | S 7 | S 7 | SSW 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SW 13 | SW 13 | SW 13 | S 17 | SW 13 | SW 21 | SW 21 | SW 20 | SW 20 | SW 19 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 |
| kJ | 40 | 37 | 37 | 36 | 35 | 47 | 47 | 45 | 290 | 290 | 257 | 448 | 199 | 543 | 533 | 660 | 746 | 959 | 602 | 593 | 585 | 467 | 366 | 345 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SSW 19 | SSW 12 | SSW 12 | SW 12 | SW 12 | S 15 | S 17 | S 7 | S 7 | S 6 | SSW 14 | SW 21 | SW 13 | SW 12 | SSW 13 | SW 16 | SW 12 | SW 14 | SW 14 | SW 14 | SW 14 | S 8 | S 8 |
| kJ | 26 | 36 | 94 | 94 | 116 | 114 | 115 | 217 | 44 | 33 | 31 | 243 | 548 | 196 | 187 | 225 | 302 | 124 | 248 | 248 | 248 | 245 | 18 | 18 |
Wind waves Height (m) Direction Period (s) | — | NW 6 | — | — | — | — | — | NE 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 1 | — | — | — | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 9 | 33 | 0 | 0 |
Best forecast wave conditions in Guanacaste | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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