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Guiones Surf Forecast
/ Guanacaste (28 surf breaks) /
Guiones surfForecast / Guanacaste / Costa Rica
12 Day Weather and Surf, issued 5 am Monday 21 Jul 2025 CST
Best Forecast Surf Conditions for Guiones this week:
The surf forecast for Guiones over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jul 21) at 9AM. The primary swell is predicted to be 0.5m and 16s period with a secondary swell of 0.8m and 9s. Another secondary swell of 0.2m and 8s 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 12 days are 0.8m 15s and forecast to arrive on Tuesday (Jul 22) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 4s period and expected on Tuesday (Jul 22) at 12AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 21st Jul) | 1.5ft (0.5m) 16s |
| Best Surf | 9AM (Mon 21st Jul) | 1.5ft (0.5m) 16s |
| Most Powerful | 3PM (Tue 22nd Jul) | 2.5ft (0.8m) 15s |
Table - best surf conditions forecast for Guiones over the next 12 days.
Short Range Forecast Heavy rain (total 27mm), heaviest during Tue night. Warm (max 30°C on Mon morning, min 24°C on Wed night). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 34mm), heaviest during Sat afternoon. Warm (max 28°C on Thu afternoon, min 25°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | |||||||||||||||
| 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) (?) | 16 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 7 | 7 | 7 | 7 | 7 | 7 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 358 | 367 | 341 | 380 | 335 | 310 | 307 | 299 | 201 | 176 | 175 | 122 | 147 | 145 | 187 | 179 | 160 | 159 | 152 | 120 | 165 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | glass | cross- off | cross- off | cross | cross- off | glass | glass | off | glass | glass | glass | glass | cross- on | cross- off | glass | on | off | cross- off | cross- off | cross- off |
High Tide / height (m) | 11:05AM 2.10 | 11:49PM 1.81 | 12:11PM 2.13 | 12:55AM 1.89 | 1:13PM 2.17 | 1:54AM 1.98 | 2:09PM 2.22 | 2:46AM 2.08 | 2:59PM 2.24 | 3:34AM 2.16 | 3:46PM 2.24 | 4:19AM 2.21 | 4:31PM 2.21 | ||||||||
Low Tide / height (m) | 5:40PM 0.36 | 5:50AM 0.47 | 6:43PM 0.29 | 6:55AM 0.41 | 7:41PM 0.21 | 7:55AM 0.35 | 8:32PM 0.14 | 8:49AM 0.30 | 9:20PM 0.10 | 9:38AM 0.27 | 10:04PM 0.10 | 10:25AM 0.27 | 10:45PM 0.13 | ||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | |||||||||||||||
| Sunrise | 5:30 | - | - | 5:30 | - | - | 5:30 | - | - | 5:31 | - | - | 5:31 | - | - | 5:31 | - | - | 5:31 | - | - |
| Sunset | - | 6:07 | - | - | 6:07 | - | - | 6:07 | - | - | 6:07 | - | - | 6:07 | - | - | 6:06 | - | - | 6:06 | - |
 |  |  | | | | | |  | | | |  | | | | | | |  | | |
Rain (mm) | - | 3 | 3 | - | 5 | 10 | 3 | 3 | - | - | 1 | 1 | 1 | 5 | 5 | 2 | 7 | 12 | 8 | 8 | 3 |
| Temp. °C | 30 | 30 | 27 | 29 | 29 | 27 | 27 | 26 | 25 | 27 | 28 | 27 | 28 | 28 | 25 | 27 | 28 | 26 | 27 | 26 | 26 |
| Feels °C (?) | 34 | 34 | 31 | 33 | 33 | 31 | 32 | 30 | 28 | 31 | 32 | 32 | 32 | 32 | 28 | 31 | 32 | 31 | 30 | 30 | 29 |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Guanacaste
Continuing clean conditions at Guiones (calm at Liberia/Tomas Guardia Airport 75 km from Guiones). 0.8m 10s swell from the S with a 0.4m 15s groundswell from the SSW and a 0.3m 12s groundswell from the S. Swells combining to make to make bigger set waves.
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 12 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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