Surf Forecasts:
Guiones surf forecast from 24 Jul 2026:
- Best quality surf: Saturday 25 Jul, 12AM (local time) - 3.5ft (1.1m), 21s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 28 Jul, 9AM (local time) - 5.5ft (1.7m), 18s period, SW swell with 1,741 kJ wave energy.
- Next surfable swell (1★+): Friday 24 Jul, 12PM (local time) - 2ft (0.6m), 24s 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 Friday (Jul 24) at 12PM. The primary swell is predicted to be 0.6m and 24s period with a secondary swell of 0.8m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Guiones in the next 16 days are 1.7m 18s and forecast to arrive on Tuesday (Jul 28) at 9AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Fri 24th Jul) | 2ft (0.6m) 24s |
| Best Surf | 12AM (Sat 25th Jul) | 3.5ft (1.1m) 21s |
| Most Powerful | 9AM (Tue 28th Jul) | 5.5ft (1.7m) 18s |
Table - best surf conditions forecast for Guiones over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it.
We’ve got a solid run of surf lining up at Guiones, starting this Friday morning and stretching through the next couple of weeks. The water is sitting at a warm 86°, which is a touch warmer than normal for this time of year, so you might not even need a spring suit.
The pattern kicks off Friday morning, July 24th, with a small but clean 2ft swell from the SW, a 24-second period – that’s proper long-period groundswell. The wind is a light cross-offshore from the NNE, so the waves will be clean. The combined swell energy is moderate (633). It’s small, but the quality is there for the longboard and beginners.
Saturday morning, July 25th, the swell bumps up to 3ft from the SW, still with a very long 21-second period. The wind is a light cross-offshore again, so it stays clean. The energy picks up to moderate (764). Still a beginner-friendly size.
Now, the standout period is Sunday, July 26th, through to Wednesday, July 29th. Sunday morning is the pick of the bunch. The swell is 4ft from the SW, 19-second period, and the wind is glassy – dead calm from the NE. That’s as good as it gets for clean conditions. The energy is strong (1020). This is excellent for experienced surfers. The same setup repeats Monday morning, July 27th, with 4ft and glassy conditions, energy at a very strong (1405). Tuesday morning, July 28th, sees the swell jump to 6ft, still from the SW, with glassy wind. That’s getting into the “experts only” territory, especially for the bigger set waves. Energy is very strong (1855). Wednesday morning, July 29th, stays solid with 5ft and glassy conditions, energy still strong (1252).
After that, the swell drops off. Thursday July 30th and Friday July 31st mornings are still clean and surfable at 4ft and 3ft, but the energy is dropping. The second week, from August 1st onwards, is mostly small stuff, 2ft to 3ft, with a mix of glassy and clean mornings. There’s a bit of a lull mid-week, but by Thursday, August 6th, we get a little pulse of 2ft with glassy conditions again. Friday and Saturday, August 7th and 8th, also have clean 2ft mornings with a nice long period on Saturday (17 seconds).
Overall, the best on offer is Sunday, July 26th, through Wednesday, July 29th, with Sunday morning being the absolute cream of the crop for that glassy, clean, long-period groundswell.
Signing off, Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Sun afternoon. Warm (max 29°C on Fri morning, min 25°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Tue night. Warm (max 29°C on Mon morning, min 26°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | |||||||||||||||
AM | 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 24 | SW 24 | SW 21 | SW 21 | SW 20 | SW 19 | SW 19 | SW 18 | SW 17 | SW 19 | SW 19 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 444 | 271 | 1015 | 641 | 647 | 1210 | 920 | 1099 | 1062 | 791 | 800 | 1213 | 1741 | 1682 | 1330 | 1194 | 1149 | 856 | 667 | 589 | 485 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-off | cross-on | cross-off | glassy | on | glassy | glassy | cross-on | cross-off | glassy | cross-on | cross-off | glassy | cross-on | glassy | glassy | on | cross-off |
High Tide | 10:26AM1.82m | 11:09PM1.58m | 11:26AM1.81m | 00:11AM1.59m | 12:22PM1.84m | 1:05AM1.66m | 1:13PM1.90m | 1:53AM1.74m | 1:59PM1.96m | 2:35AM1.84m | 2:41PM2.03m | 3:15AM1.94m | 3:20PM2.07m | ||||||||
Low Tide | 5:03PM0.62m | 5:06AM0.73m | 6:02PM0.59m | 6:05AM0.71m | 6:55PM0.53m | 6:59AM0.66m | 7:42PM0.46m | 7:48AM0.60m | 8:24PM0.38m | 8:32AM0.53m | 9:02PM0.32m | 9:13AM0.47m | 9:37PM0.28m | ||||||||
 |  |  | |  |  | | | | | | | | | |  | | | | | | |
 | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — |
 | — | 6:07 | — | — | 6:07 | — | — | 6:06 | — | — | 6:06 | — | — | 6:06 | — | — | 6:06 | — | — | 6:06 | — |
mm | — | 1 | 3 | — | 2 | — | — | 8 | 1 | — | 2 | 2 | 1 | 2 | 6 | — | 2 | — | — | 5 | 1 |
Temp °C | 29 | 29 | 26 | 29 | 29 | 27 | 29 | 28 | 26 | 29 | 29 | 27 | 28 | 28 | 27 | 29 | 29 | 28 | 29 | 29 | 28 |
Feels °C | 31 | 31 | 29 | 32 | 32 | 31 | 33 | 32 | 30 | 32 | 32 | 31 | 32 | 30 | 31 | 33 | 32 | 33 | 32 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 21 | SW 21 | SW 20 | SW 19 | SW 19 | SW 18 | SW 17 | SW 19 | SW 16 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 |
| kJ | 133 | 86 | 1015 | 641 | 647 | 1210 | 920 | 1099 | 1062 | 791 | 532 | 1213 | 1741 | 1682 | 1330 | 1194 | 1149 | 856 | 667 | 589 | 485 |
Swell 2 Height (m) Direction Period (s) | SW 24 | S 7 | SW 8 | SW 7 | WSW 7 | SW 11 | S 8 | S 10 | S 10 | SW 16 | SW 19 | SW 13 | S 11 | S 9 | S 11 | S 11 | S 10 | S 6 | S 6 | WNW 11 | SSW 6 |
| kJ | 444 | 38 | 82 | 54 | 36 | 103 | 42 | 98 | 71 | 546 | 800 | 168 | 89 | 40 | 61 | 58 | 56 | 20 | 18 | 24 | 13 |
Swell 3 Height (m) Direction Period (s) | SW 13 | SW 24 | S 12 | SW 12 | S 8 | S 11 | SW 11 | SW 11 | SW 21 | S 10 | S 10 | S 12 | SSW 11 | SSW 11 | — | — | — | — | WNW 11 | S 14 | WNW 11 |
| kJ | 56 | 271 | 68 | 69 | 44 | 116 | 58 | 41 | 117 | 68 | 67 | 108 | 25 | 25 | — | — | — | — | 12 | 4 | 23 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 3 | 0 | 0 | 39 | 0 | 0 | 39 | 0 | 0 | 39 | 0 | 0 | 39 | 0 | 0 | 39 | 0 | 0 | 31 | 0 |
Best forecast wave conditions in Guanacaste | |||||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||||
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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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