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Diria Surf Forecast
/ Guanacaste (28 surf breaks) /
Surf Forecasts:
Diria surfForecast / Guanacaste / Costa Rica
48hr Weather and Surf, issued 5 am Thursday 16 Oct 2025 CST
How big are the waves at Diria today?
The current surf forecast for Diria at 12PM is: 0.5m 12s primary swell from a Southwest direction (forecast issued at 05:00am October 16). An open ocean swell of 0.5m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Oct) | 1.5ft (0.5m) | 12s |
| Afternoon (16 Oct) | 2ft (0.6m) | 18s |
| Evening (16 Oct) | 3ft (0.9m) | 18s |
Table - waves today at Diria. (Swell directed towards the surf break)
Thursday 16 | Friday 17 | Saturday 18 | Sun 19 | |||||||||||||||||||||
| 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 12 | 18 | 18 | 18 | 16 | 7 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 114 | 94 | 69 | 67 | 249 | 252 | 480 | 280 | 44 | 112 | 392 | 532 | 683 | 691 | 683 | 683 | 674 | 565 | 649 | 649 | 675 | 657 | 649 | 631 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | glass | cross- on | cross- on | cross- on | cross | cross | cross | glass | glass | cross- on | cross- on | cross | off | off | glass | off | off | cross | cross | cross | cross | cross- off |
High Tide / height (m) | 10:30AM 1.99 | 11:14PM 2.05 | 11:39AM 2.00 | 12:12AM 2.14 | 12:36PM 2.05 | |||||||||||||||||||
Low Tide / height (m) | 4:19AM 0.69 | 4:51PM 0.58 | 5:30AM 0.65 | 5:52PM 0.56 | 6:29AM 0.56 | 6:43PM 0.52 | ||||||||||||||||||
Thursday 16 | Friday 17 | Saturday 18 | Sun 19 | |||||||||||||||||||||
| Sunrise | - | 5:31 | - | - | - | - | - | - | - | 5:31 | - | - | - | - | - | - | - | 5:31 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 5:24 | - | - | - | - | - | - | - | 5:24 | - | - | - | - | - | - | - | 5:23 | - | - | - |
 |  |  | | | | | | |  | | | | | | | | | | | | |  | | |
Rain (mm) | 1 | 1 | - | 2 | 1 | 3 | 2 | 2 | 2 | 1 | 1 | 2 | 2 | 1 | 4 | 2 | 1 | 1 | 2 | 4 | 4 | 1 | - | 3 |
| Temp. °C | 24 | 24 | 26 | 27 | 27 | 26 | 25 | 24 | 24 | 24 | 26 | 27 | 26 | 26 | 25 | 24 | 24 | 24 | 26 | 27 | 26 | 26 | 25 | 25 |
| Feels °C (?) | 28 | 28 | 31 | 30 | 30 | 29 | 29 | 27 | 27 | 28 | 30 | 31 | 29 | 30 | 28 | 28 | 29 | 27 | 29 | 31 | 28 | 29 | 28 | 28 |
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Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Guanacaste
Continuing clean conditions at Diria (light winds from the S at DanielOduberInt. Airport 46 km from Diria). 0.5m 7s swell from the WSW with a 0.5m 12s groundswell from the SW. 2 swells combining to make bigger set waves.
46 km away, 2 h 57 min ago
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