Surf Forecasts:
Guiones surf forecast from 9 Oct 2026:
- Best quality surf: Thursday 8 Oct, 9PM (local time) - 4.5ft (1.3m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 12 Oct, 3PM (local time) - 5ft (1.5m), 18s period, SW swell with 1,351 kJ wave energy.
- Next surfable swell (1★+): Thursday 8 Oct, 9PM (local time) - 4.5ft (1.3m), 16s period with SW swell.
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 Thursday (Oct 08) at 9PM. The primary swell is predicted to be 1.3m and 16s period with a secondary swell of 0.8m and 14s. 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 1.5m 18s and forecast to arrive on Monday (Oct 12) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 8th Oct) | 4.5ft (1.3m) 16s |
| Best Surf | 9PM (Thu 8th Oct) | 4.5ft (1.3m) 16s |
| Most Powerful | 3PM (Mon 12th Oct) | 5ft (1.5m) 18s |
Table - best surf conditions forecast for Guiones over the next 16 days.
Short Range ForecastHeavy rain (total 39mm), heaviest during Thu afternoon. Warm (max 29°C on Thu afternoon, min 26°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 41mm), heaviest during Mon night. Warm (max 29°C on Tue morning, min 26°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 8 | Friday 9 | Saturday 10 | Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 16 | SW 16 | SW 16 | SW 15 | SW 19 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 909 | 964 | 623 | 598 | 676 | 529 | 386 | 381 | 720 | 566 | 608 | 534 | 1351 | 1216 | 1014 | 1115 | 894 | 704 | 623 | 536 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | glassy | glassy | cross-off | glassy | cross | cross-off | glassy | cross-on | glassy | glassy | cross-on | glassy | glassy | cross-on | cross | cross | cross-on | cross |
High Tide | 1:15AM2.19m | 1:40PM2.08m | 2:00AM2.28m | 2:25PM2.13m | 2:40AM2.32m | 3:06PM2.15m | 3:18AM2.33m | 3:45PM2.13m | 3:56AM2.29m | 4:22PM2.08m | 4:33AM2.21m | 5:00PM2.01m | ||||||||
Low Tide | 6:59PM0.33m | 7:32AM0.27m | 7:45PM0.27m | 8:17AM0.18m | 8:28PM0.24m | 8:58AM0.13m | 9:08PM0.23m | 9:37AM0.11m | 9:46PM0.25m | 10:15AM0.14m | 10:23PM0.30m | 10:52AM0.20m | 11:00PM0.38m | |||||||
 |  | | | | | | | | | | |  | |  | | |  | | | |
 | — | — | 5:31 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — |
 | 5:29 | — | — | 5:28 | — | — | 5:28 | — | — | 5:27 | — | — | 5:27 | — | — | 5:25 | — | — | 5:25 | — |
mm | 7 | 7 | 1 | 7 | 3 | 1 | 3 | 4 | 6 | 2 | 8 | 2 | 7 | 8 | — | 2 | 11 | 1 | 11 | 8 |
Temp °C | 29 | 27 | 28 | 28 | 27 | 29 | 29 | 27 | 28 | 28 | 26 | 28 | 28 | 26 | 29 | 28 | 27 | 29 | 28 | 26 |
Feels °C | 33 | 31 | 32 | 33 | 31 | 34 | 33 | 31 | 32 | 32 | 31 | 32 | 32 | 31 | 32 | 31 | 31 | 32 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 15 | SW 19 | SW 14 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 |
| kJ | 909 | 964 | 623 | 598 | 676 | 529 | 313 | 304 | 720 | 566 | 608 | 412 | 1351 | 1216 | 1014 | 1115 | 894 | 704 | 623 | 536 |
Swell 2 Height (m) Direction Period (s) | SW 21 | S 11 | SW 19 | SW 19 | SW 18 | SW 18 | SW 16 | SW 16 | S 7 | S 7 | SW 14 | SW 18 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 8 | SW 7 | SW 7 |
| kJ | 224 | 91 | 546 | 299 | 319 | 323 | 386 | 381 | 36 | 33 | 301 | 534 | 73 | 74 | 52 | 59 | 70 | 150 | 160 | 126 |
Swell 3 Height (m) Direction Period (s) | S 7 | S 14 | S 13 | S 11 | SSW 12 | S 12 | S 12 | S 7 | SW 21 | SW 20 | S 6 | SSW 7 | WNW 10 | WNW 10 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 |
| kJ | 23 | 59 | 89 | 57 | 50 | 101 | 99 | 38 | 220 | 264 | 41 | 52 | 77 | 78 | 65 | 58 | 39 | 37 | 16 | 15 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SW 7 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 131 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 3 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 39 | 0 | 0 | 31 | 0 | 0 | 26 | 3 | 7 | 31 | 3 |
Best forecast wave conditions in Guanacaste | ||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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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