Surf Forecasts:
How big are the waves at Diria today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 3ft (0.9m), 19s period with SW swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 3ft (0.9m), 19s period with SW swell.
- Evening surf: Evening surf (20 Sep, local time) - 3ft (0.9m), 18s period with SW swell.
The current surf forecast for Diria at 2AM is: 0.8m 19s primary swell from a Southwest direction (forecast issued at 05:00pm September 19). An open ocean swell of 0.8m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 3ft (0.9m) | 19s |
| Afternoon (20 Sep) | 3ft (0.9m) | 19s |
| Evening (20 Sep) | 3ft (0.9m) | 18s |
Table - waves today at Diria. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 57mm), heaviest during Sat night. Warm (max 30°C on Sat afternoon, min 23°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Sat 19 | Sunday 20 | Monday 21 | |||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | SW 13 | SW 18 | SW 21 | SW 18 | SW 19 | SW 19 | SW 19 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 167 | 197 | 277 | 396 | 432 | 520 | 621 | 621 | 614 | 595 | 534 | 516 | 510 | 588 | 679 | 679 | 582 | 487 | 448 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-off | cross-off | glassy | off | cross-on | cross-on | cross | cross | cross-off | off | off | off | glassy | glassy | cross | cross-off |
High Tide | 8:37PM1.73m | 8:58AM1.87m | 9:48PM1.69m | 10:08AM1.83m | |||||||||||||||
Low Tide | 2:27PM0.72m | 2:37AM0.86m | 3:33PM0.78m | 3:49AM0.91m | 4:43PM0.78m | ||||||||||||||
 |  | |  |  |  | | | |  | |  | |  | | | | | | |
 | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — |
 | 5:40 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:39 | — | — |
mm | — | 1 | 5 | 20 | 4 | 1 | — | — | — | — | 2 | 7 | 3 | 2 | 2 | 2 | — | 1 | 1 |
Temp °C | 30 | 29 | 28 | 23 | 24 | 25 | 27 | 29 | 28 | 27 | 26 | 26 | 26 | 25 | 26 | 27 | 27 | 26 | 27 |
Feels °C | 33 | 33 | 31 | 22 | 26 | 29 | 31 | 32 | 31 | 30 | 30 | 30 | 30 | 28 | 30 | 32 | 32 | 29 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 13 | S 7 | S 7 | SW 18 | SW 19 | SW 19 | SW 19 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | S 6 | SW 16 |
| kJ | 167 | 51 | 52 | 396 | 432 | 520 | 621 | 621 | 614 | 595 | 534 | 516 | 510 | 588 | 679 | 679 | 582 | 89 | 448 |
Swell 2 Height (m) Direction Period (s) | S 8 | SW 12 | SW 12 | S 7 | S 7 | S 7 | SSW 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SSW 7 | S 7 | S 7 | SW 11 | SW 17 | SW 11 |
| kJ | 57 | 159 | 152 | 49 | 61 | 46 | 48 | 45 | 59 | 64 | 64 | 52 | 66 | 63 | 61 | 73 | 58 | 487 | 58 |
Swell 3 Height (m) Direction Period (s) | SW 18 | SW 18 | SW 21 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SSW 12 | SSW 11 | SSW 11 | SW 11 | SW 11 | — | SW 11 | SW 11 |
| kJ | 154 | 197 | 277 | 118 | 116 | 116 | 114 | 114 | 114 | 112 | 110 | 88 | 84 | 82 | 58 | 59 | — | 58 | 58 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 7 | S 6 | SSE 6 | S 6 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 121 | 86 | 102 | 101 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 9 | 9 | 9 | 33 | 0 | 0 | 0 | 9 | 9 | 11 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 33 | 0 |
Best forecast wave conditions in Guanacaste | |||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||
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Surf Rating (10 Max)
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