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Ostional Surf Forecast
/ Guanacaste (28 surf breaks) /
Ostional surfForecast / Guanacaste / Costa Rica
12 Day Weather and Surf, issued 11 am Friday 13 Dec 2024 CST
Best Forecast Surf Conditions for Ostional this week:
The surf forecast for Ostional over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Dec 13) at 3PM. The primary swell is predicted to be 0.7m and 13s period with a secondary swell of 0.2m and 5s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Ostional in the next 12 days are 0.8m 15s and forecast to arrive on Tuesday (Dec 17) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 17s period and expected on Monday (Dec 16) at 3AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Fri 13th Dec) | 2.5ft (0.7m) 13s |
| Best Surf | 6AM (Mon 16th Dec) | 2ft (0.6m) 17s |
| Most Powerful | 9AM (Tue 17th Dec) | 2.5ft (0.8m) 15s |
Table - best surf conditions forecast for Ostional over the next 12 days.
Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 14 | 13 | 13 | 13 | 13 | 15 | 13 | 13 | 12 | 17 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 15 | 15 | 14 | 15 | 15 | 13 | 12 | 14 | 13 | 18 | 13 | 12 | 12 | 16 | 15 | 15 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 231 | 183 | 140 | 138 | 111 | 74 | 78 | 82 | 73 | 237 | 269 | 250 | 284 | 276 | 189 | 195 | 229 | 119 | 37 | 76 | 234 | 115 | 76 | 104 | 96 | 87 | 64 | 63 | 154 | 43 | 55 | 54 | 91 | 60 | 55 | 169 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | off | off | cross- off | cross | off | cross- off | glass | off | cross- off | cross | off | cross- off | off | cross- off | cross- off | off | cross- off | cross- off | glass | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 12:44PM 2.14 | 1:02AM 2.55 | 1:41PM 2.23 | 1:56AM 2.59 | 2:34PM 2.29 | 2:47AM 2.60 | 3:24PM 2.34 | 3:36AM 2.57 | 4:12PM 2.35 | 4:23AM 2.51 | 4:59PM 2.33 | 5:08AM 2.41 | 5:45PM 2.30 | 5:54AM 2.28 | 6:31PM 2.24 | 6:39AM 2.15 | 7:17PM 2.18 | 7:27AM 2.01 | 8:04PM 2.12 | 8:18AM 1.89 | 8:53PM 2.07 | 9:14AM 1.80 | 9:44PM 2.04 | |||||||||||||
Low Tide / height (m) | 6:42PM 0.37 | 7:31AM 0.14 | 7:39PM 0.31 | 8:23AM 0.06 | 8:32PM 0.26 | 9:12AM 0.03 | 9:23PM 0.26 | 9:59AM 0.03 | 10:13PM 0.29 | 10:44AM 0.08 | 11:01PM 0.35 | 11:29AM 0.17 | 11:49PM 0.45 | 12:12PM 0.28 | 12:37AM 0.55 | 12:56PM 0.41 | 1:28AM 0.64 | 1:40PM 0.53 | 2:21AM 0.71 | 2:27PM 0.65 | 3:17AM 0.75 | 3:18PM 0.73 | ||||||||||||||
Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||||||
| Sunrise | 5:50 | - | - | 5:50 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:54 | - | - | 5:54 | - | - | 5:54 | - | - | 5:54 | - | - | 5:56 | - | - | 5:56 | - | - |
| Sunset | - | 5:22 | - | - | 5:23 | - | - | 5:23 | - | - | 5:24 | - | - | 5:24 | - | - | 5:25 | - | - | 5:25 | - | - | 5:27 | - | - | 5:27 | - | - | 5:28 | - | - | 5:28 | - | - | 5:29 | - |
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Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 29 | 29 | 26 | 29 | 29 | 26 | 29 | 28 | 24 | 28 | 27 | 25 | 29 | 28 | 25 | 28 | 27 | 26 | 30 | 30 | 26 | 29 | 29 | 25 | 29 | 29 | 26 | 28 | 28 | 26 | 27 | 27 | 25 | 28 | 28 | 25 |
| Feels °C (?) | 27 | 30 | 26 | 28 | 30 | 26 | 30 | 30 | 25 | 30 | 29 | 28 | 32 | 31 | 27 | 31 | 29 | 30 | 31 | 31 | 27 | 29 | 30 | 27 | 30 | 32 | 28 | 24 | 25 | 23 | 24 | 25 | 22 | 27 | 29 | 25 |
Short Range Forecast: Mostly dry. Warm (max 29°C on Fri morning, min 23°C on Sat night). Winds decreasing (fresh winds from the NE on Fri morning, calm by Sat afternoon). | Days 3-6 Weather Summary Mostly dry. Warm (max 29°C on Tue morning, min 23°C on Tue night). Wind will be generally light. | Days 6-9 Weather Summary Mostly dry. Warm (max 30°C on Thu morning, min 24°C on Thu night). Wind will be generally light. | Long Range Forecast: Mostly dry. Warm (max 28°C on Sun morning, min 23°C on Sun night). Winds decreasing (strong winds from the ENE on Sun night, light winds from the NE by Tue afternoon). | |||||||||||||||||||||||||||||||||
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Ostional surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Ostional Surf forecast
The above surf forecast table for Ostional provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Ostional can be found by selecting the local surf guide option on the grey menu. Our Ostional surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Ostional) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Ostional may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Ostional is 35 km (22 miles) from Nicoya. If you plan a holiday in Guanacaste, look for hotels and other accommodation in Nicoya. Nicoya has rooms for a wide range of budgets as well as car hire and transport links.
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