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Surf Forecasts:
Mar Azul surfForecast / Golfo de Nicoya / Costa Rica
48hr Weather and Surf, issued 11 pm Thursday 18 Sep 2025 CST
How big are the waves at Mar Azul today?
The current surf forecast for Mar Azul at 1AM is: 0.9m 13s primary swell from a Southwest direction (forecast issued at 11:00pm September 18). An open ocean swell of 0.7m 7s 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 (19 Sep) | 2.5ft (0.8m) | 13s |
| Afternoon (19 Sep) | 2.5ft (0.8m) | 13s |
| Evening (19 Sep) | 2.5ft (0.7m) | 13s |
Table - waves today at Mar Azul. (Swell directed towards the surf break)
Friday 19 | Saturday 20 | Sunday 21 | ||||||||||||||||||||||
| 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 | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 261 | 257 | 257 | 253 | 208 | 208 | 205 | 170 | 164 | 160 | 134 | 233 | 263 | 258 | 258 | 167 | 187 | 127 | 203 | 158 | 158 | 158 | 121 | 167 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | glass | cross | cross- on | on | on | cross- off | cross- off | on | cross | off | cross- off | cross- on | on | on | on | cross- on | cross- on | glass | cross- on | on | on |
High Tide / height (m) | 12:44AM 2.21 | 1:03PM 2.27 | 1:34AM 2.34 | 1:51PM 2.35 | 2:15AM 2.46 | 2:33PM 2.41 | ||||||||||||||||||
Low Tide / height (m) | 6:53AM 0.59 | 7:17PM 0.44 | 7:43AM 0.47 | 8:01PM 0.37 | 8:26AM 0.37 | |||||||||||||||||||
Friday 19 | Saturday 20 | Sunday 21 | ||||||||||||||||||||||
| Sunrise | - | - | - | 5:30 | - | - | - | - | - | - | - | 5:30 | - | - | - | - | - | - | - | 5:28 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - |
 |  | |  |  | |  | | | | | | | | |  | | | | | |  | | | |
Rain (mm) | 1 | - | 2 | 1 | - | 1 | - | 1 | 1 | - | - | 2 | 1 | - | 1 | - | - | - | 1 | 2 | 1 | - | - | - |
| Temp. °C | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 25 | 26 | 26 | 27 | 27 | 28 | 27 | 27 | 26 | 26 | 26 | 27 | 27 | 28 | 27 |
| Feels °C (?) | 30 | 30 | 30 | 30 | 31 | 30 | 30 | 30 | 30 | 29 | 30 | 29 | 30 | 30 | 31 | 30 | 31 | 30 | 30 | 30 | 32 | 30 | 31 | 30 |
- Map Icons:
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 Golfo de Nicoya
Cross-off wind 121 km from Mar Azul has become light (calm at Barva). Waves should be turning clean at Mar Azul. 0.8m 13s groundswell from the SSW with a 0.6m 7s swell from the SW. 2 swells combining to make bigger set waves.
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