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Surf Forecasts:
Rio Tulin surfForecast / Golfo de Nicoya / Costa Rica
48hr Weather and Surf, issued 11 pm Tuesday 21 Oct 2025 CST
How big are the waves at Rio Tulin today?
The current surf forecast for Rio Tulin at 4AM is: 0.7m 13s primary swell from a Southwest direction and 0.6m 6s secondary swell from a South direction (forecast issued at 11:00pm October 21). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Oct) | 2.5ft (0.7m) | 16s |
| Afternoon (22 Oct) | 2.5ft (0.7m) | 16s |
| Evening (22 Oct) | 2ft (0.6m) | 16s |
Table - waves today at Rio Tulin. (Swell directed towards the surf break)
Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||||||||||
| 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) (?) | 18 | 15 | 13 | 13 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 152 | 104 | 170 | 183 | 258 | 203 | 258 | 258 | 203 | 164 | 242 | 220 | 217 | 214 | 214 | 214 | 211 | 138 | 136 | 133 | 123 | 116 | 123 | 135 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | cross | glass | cross- off | glass | glass | glass | on | on | on | glass | glass | glass | glass | glass | on | cross- on | cross- on |
High Tide / height (m) | 2:57AM 2.68 | 3:24PM 2.50 | 3:31AM 2.68 | 3:58PM 2.49 | 4:05AM 2.64 | 4:33PM 2.43 | ||||||||||||||||||
Low Tide / height (m) | 9:15AM 0.26 | 9:23PM 0.43 | 9:50AM 0.25 | 9:57PM 0.45 | 10:24AM 0.28 | |||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||||||||||
| Sunrise | - | - | - | 5:26 | - | - | - | - | - | - | - | 5:26 | - | - | - | - | - | - | - | 5:26 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:17 | - | - | - | - | - | - | - | 5:17 | - | - | - | - | - | - | - | 5:16 | - |
 | | |  | |  | | | | | | | | | | | | | |  | | | | | |
Rain (mm) | 4 | 1 | 1 | - | - | 1 | 2 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 5 | 4 | 3 | - | 1 | 1 | 5 |
| Temp. °C | 27 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 25 | 27 | 27 | 27 | 26 | 26 | 26 | 24 | 24 | 26 | 26 | 27 | 26 |
| Feels °C (?) | 30 | 29 | 30 | 29 | 30 | 30 | 30 | 31 | 32 | 30 | 31 | 29 | 31 | 30 | 30 | 30 | 30 | 31 | 29 | 29 | 30 | 29 | 30 | 29 |
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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
Continuing clean conditions at Rio Tulin (light winds from the ENE at Juan Santamaria Airport 63 km from Rio Tulin). 0.6m 6s windswell from the SSW with a 0.5m 12s groundswell, also from the SSW and a 0.5m 14s groundswell, also from the SSW. 3 swells combining to make bigger set waves.
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