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Guiones Surf Forecast
/ Guanacaste (28 surf breaks) /
Surf Forecasts:
Guiones surfForecast / Guanacaste / Costa Rica
16 Day Weather and Surf, issued 11 am Friday 17 Apr 2026 CSTForecast update in hr min s Forecast update imminent
Guiones surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Guiones sea temperature is
29.8° C
(Which is 1.2°C warmer than normal for this time of year)Best Forecast Surf Conditions for Guiones this week:
The surf forecast for Guiones over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Apr 17) at 9PM. The primary swell is predicted to be 0.7m and 18s period with a secondary swell of 0.7m and 14s. Another secondary swell of 0.7m and 14s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Guiones in the next 16 days are 1.4m 16s and forecast to arrive on Tuesday (Apr 21) at 3PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 17th Apr) | 2.5ft (0.7m) 18s |
| Best Surf | 9PM (Fri 17th Apr) | 2.5ft (0.7m) 18s |
| Most Powerful | 3PM (Tue 21st Apr) | 4.5ft (1.4m) 16s |
Table - best surf conditions forecast for Guiones over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Light rain (total 4mm), mostly falling on Sat night. Warm (max 30°C on Fri morning, min 26°C on Fri night). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 12mm), heaviest on Wed night. Warm (max 30°C on Mon morning, min 26°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
| 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 | 14 | 18 | 17 | 16 | 15 | 14 | 14 | 14 | 14 | 17 | 17 | 16 | 16 | 15 | 14 | 14 | 14 | 13 | 13 | 13 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 557 | 401 | 329 | 390 | 803 | 604 | 660 | 514 | 512 | 427 | 311 | 423 | 803 | 950 | 715 | 529 | 542 | 425 | 312 | 307 | 295 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- on | cross- off | glass | cross- on | cross | cross | on | glass | glass | on | cross- off | glass | on | cross- off | glass | on | glass | glass | on | glass |
High Tide / height (m) | 2:30PM 2.40 | 2:59AM 2.18 | 3:14PM 2.48 | 3:44AM 2.23 | 3:59PM 2.50 | 4:30AM 2.23 | 4:46PM 2.46 | 5:19AM 2.19 | 5:36PM 2.36 | 6:11AM 2.11 | 6:29PM 2.22 | 7:08AM 2.02 | 7:28PM 2.06 | ||||||||
Low Tide / height (m) | 8:51PM 0.05 | 8:59AM 0.14 | 9:35PM -0.03 | 9:44AM 0.10 | 10:21PM -0.05 | 10:32AM 0.11 | 11:08PM -0.02 | 11:21AM 0.17 | 11:59PM 0.07 | 12:15PM 0.28 | 12:53AM 0.19 | 1:15PM 0.41 | 1:53AM 0.32 | ||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
| Sunrise | 5:31 | - | - | 5:31 | - | - | 5:30 | - | - | 5:30 | - | - | 5:28 | - | - | 5:28 | - | - | 5:28 | - | - |
| Sunset | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - |
 |  |  | | | | | |  | | | | | |  |  | | | | | | |
Rain (mm) | - | - | 1 | - | - | 3 | - | - | - | - | - | - | - | - | 2 | 1 | 1 | 8 | 3 | 3 | 5 |
| Temp. °C | 30 | 30 | 28 | 30 | 29 | 28 | 30 | 29 | 28 | 30 | 29 | 28 | 30 | 29 | 28 | 29 | 29 | 28 | 28 | 28 | 27 |
| Feels °C (?) | 30 | 32 | 30 | 31 | 31 | 31 | 31 | 30 | 32 | 31 | 31 | 31 | 31 | 30 | 30 | 33 | 31 | 31 | 32 | 30 | 31 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
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 Guiones 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 Guiones Surf forecast
The above surf forecast table for Guiones provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Guiones can be found by selecting the local surf guide option on the grey menu. Our Guiones 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 (Guiones) 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 Guiones 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.
Guiones is 34 km (21 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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