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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 Saturday 23 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
30.5° C
(Which is 1.9°C warmer than normal for this time of year)How big are the waves at Diria today?
The current surf forecast for Diria at 4PM is: 0.5m 16s primary swell from a Southwest direction and 0.6m 14s secondary swell from a Southwest direction (forecast issued at 11:00am May 23). An open ocean swell of 0.8m 9s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | 2.5ft (0.8m) | 14s |
| Afternoon (23 May) | 2ft (0.6m) | 14s |
| Evening (23 May) | 2ft (0.6m) | 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 Mon morning, min 27°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 23 | Sunday 24 | Monday 25 | Tue 26 | |||||||||||||||||||||
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 16 | SW 16 | SW 16 | SW 19 | SW 19 | SW 18 | SW 15 | SW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | |
228 | 153 | 130 | 147 | 165 | 163 | 169 | 278 | 577 | 275 | 266 | 385 | 560 | 644 | 719 | 728 | 737 | 823 | 714 | 704 | 695 | 606 | 606 | 598 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | on | cross-on | cross-off | off | off | off | cross-off | cross-off | glassy | cross-on | cross | off | off | off | cross-off | cross-off | glassy | cross | cross | off | off | off | off | |
High Tide | 7:59AM2.27m | 8:18PM2.13m | 9:01AM2.23m | 9:24PM2.02m | 10:02AM2.20m | 10:30PM1.96m | ||||||||||||||||||
Low Tide | 2:12PM0.52m | 2:36AM0.42m | 3:20PM0.59m | 3:37AM0.52m | 4:27PM0.60m | 4:37AM0.59m | ||||||||||||||||||
 |  | |  | | |  |  | | | | | | | | | | | |  | | | | | |
 | 5:20 | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — |
 | — | — | 5:59 | — | — | — | — | — | — | — | 5:59 | — | — | — | — | — | — | — | 5:59 | — | — | — | — | 6:00 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 30 | 31 | 30 | 30 | 29 | 28 | 27 | 27 | 31 | 32 | 30 | 30 | 29 | 28 | 27 | 27 | 31 | 33 | 30 | 30 | 29 | 28 | 27 | 27 |
33 | 32 | 32 | 33 | 32 | 32 | 30 | 30 | 32 | 36 | 32 | 33 | 30 | 28 | 29 | 29 | 31 | 36 | 31 | 33 | 31 | 30 | 29 | 30 | |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | SW 19 | S 8 | SW 15 | SW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 |
 kJ | 80 | 101 | 95 | 91 | 89 | 84 | 84 | 65 | 577 | 66 | 266 | 385 | 560 | 644 | 719 | 728 | 737 | 823 | 714 | 704 | 695 | 606 | 606 | 598 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 19 | S 8 | SW 15 | S 8 | S 8 | S 8 | S 8 | SSE 8 | S 8 | SSE 8 | S 8 | S 8 | S 8 | S 8 | SSE 7 | S 7 | S 7 |
| kJ | 228 | 153 | 118 | 147 | 144 | 138 | 109 | 278 | 66 | 215 | 65 | 65 | 47 | 47 | 51 | 48 | 51 | 31 | 30 | 42 | 40 | 42 | 37 | 36 |
Swell 3 Height (m) Direction Period (s) | SW 10 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 13 | SW 9 | SW 18 | SW 18 | N 4 | S 12 | S 12 | S 12 | S 11 | S 11 | N 4 | N 4 | N 4 | N 4 | S 15 | S 15 | S 15 |
| kJ | 15 | 72 | 130 | 129 | 165 | 163 | 169 | 113 | 3 | 275 | 206 | 1 | 10 | 11 | 10 | 9 | 9 | 3 | 3 | 3 | 3 | 4 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | NNE 4 | — | — | — | — | — | NE 4 | NE 3 | NNE 4 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 1 | — | — | — | — | — | 5 | 7 | 7 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 9 | 9 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 9 | 6 | 0 | 0 | 0 | 0 | 14 | 0 | 56 | 8 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Guanacaste | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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