
Surf Forecasts:
Guiones surf forecast from 22 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★+): Wednesday 22 Jul, 6PM (local time) - 2.5ft (0.7m), 11s period with S 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 Wednesday (Jul 22) at 6PM. The primary swell is predicted to be 0.7m and 11s period with a secondary swell of 0.6m and 12s. The wind is predicted to be glassy 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 cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 5s period and expected on Thursday (Jul 23) at 3AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Wed 22nd Jul) | 2.5ft (0.7m) 11s |
| 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, Rusty here, let’s have a look at what’s shaping up.
We’re looking at a solid run of surf ahead at Guiones over the next couple weeks. The water’s sitting at 86°, which is a touch warmer than normal for this time of year. Nothing crazy, but you’ll notice it.
Starting off, Wednesday morning the 22nd has some knee-high plus SSW swell pushing in with a long 13 second period and light cross-off wind. Combined energy is moderate (299). It’s clean, though there’s a risk of thunderstorms around.
By Thursday morning the 23rd, the swell drops a little but stays clean with offshore wind. Small stuff, but rideable.
Now, Friday morning the 24th is where things start to get real interesting. We’ve got a nice long-period groundswell – 24 seconds – coming from the SW. Swell height is around 2ft, but that energy reading jumps right up to 717 (moderate to strong). That kind of period means proper, lined-up waves, especially at a point break setup like Guiones. Morning has light cross-off breeze, and then Friday afternoon goes glassy. That afternoon session with zero wind and glassy conditions is a standout for clean, fun waves.
Saturday the 25th keeps that energy rolling – 3ft to 3ft, 20 to 21 second period, combined energy up in the 750s. Morning has clean cross-off wind again. Afternoon gets a little crossed up, but still surfable.
Sunday the 26th is another beauty. Morning has 4ft of SW groundswell at 19 seconds, offshore wind, energy at 931. Then Sunday afternoon goes glassy with 4ft and period dropping slightly to 18 seconds, energy now at 1119. That afternoon is excellent for experienced surfers.
Monday the 27th keeps the quality high – glassy morning, 4ft at 19 seconds, energy at a whopping 1403. That’s serious power for a wave that size. Afternoon gets a bit of cross-on, but morning is the pick.
Tuesday the 28th sees the swell bump up to 6ft with 18 second period. Morning is clean, light cross-off, energy at 1855. That’s big, powerful, and for experienced surfers only. Afternoon gets a bit choppy.
Wednesday the 29th holds at 5ft with 16 second period. Morning is glassy again with NNE wind – excellent conditions for experienced crew. Energy is 1222.
Thursday the 30th still has 4ft in the morning, glassy with zero wind. Energy at 697, clean and very surfable. Afternoon goes onshore.
From Friday the 31st into early August, the size drops back to 2ft to 3ft, but the period stays around 12-14 seconds. Mornings are mostly clean with light off or cross-off wind. Energy settles into the 200-400 range. It’s not the pumping stuff of the last week of July, but it’s consistent and good fun.
There’s a gap from about the 2nd of August afternoon through the 4th where the afternoons get onshore and choppy, but mornings remain clean for small waves.
The best of the best? Friday the 24th afternoon with glassy conditions and that 24 second groundswell, and Tuesday the 28th morning with 6ft, 18 second period, clean wind, and energy at 1855. That Tuesday session is for experts only, but it’ll be firing.
-Rusty
Short Range ForecastHeavy rain (total 37mm), heaviest during Fri night. Warm (max 30°C on Fri morning, min 24°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Sun afternoon. Warm (max 29°C on Mon morning, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
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 13 | SW 13 | SW 12 | SW 12 | SSW 8 | SW 8 | 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 |
Wave Graph | |||||||||||||||||||||
173 | 161 | 92 | 93 | 93 | 281 | 444 | 271 | 1015 | 641 | 647 | 1210 | 800 | 996 | 1074 | 791 | 800 | 1591 | 1741 | 1682 | 1330 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | off | on | glassy | cross-off | glassy | cross-off | cross-off | cross | off | off | glassy | off | glassy | cross-on | cross-off | cross-off | cross | cross-off |
High Tide | 9:06PM1.69m | 9:29AM1.89m | 10:06PM1.61m | 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 | ||||||||
Low Tide | 3:04PM0.55m | 3:08AM0.63m | 4:03PM0.60m | 4:05AM0.70m | 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 | ||||||||
5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | |
— | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:06 | — | — | 6:06 | — | — | 6:06 | — | |
mm | 2 | 5 | 5 | — | 5 | 2 | — | 3 | 15 | — | 1 | 1 | 1 | 2 | — | — | 1 | — | — | 4 | 12 |
Temp °C | 29 | 29 | 26 | 28 | 26 | 26 | 30 | 29 | 26 | 27 | 28 | 27 | 28 | 27 | 26 | 29 | 29 | 27 | 29 | 28 | 27 |
Feels °C | 34 | 33 | 30 | 30 | 29 | 30 | 33 | 33 | 29 | 31 | 31 | 30 | 32 | 32 | 31 | 32 | 32 | 31 | 32 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | S 11 | SW 13 | SW 12 | S 6 | SSW 8 | SW 8 | 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 |
119 | 161 | 92 | 20 | 93 | 281 | 216 | 201 | 1015 | 641 | 647 | 1210 | 800 | 996 | 1074 | 791 | 532 | 1591 | 1741 | 1682 | 1330 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | S 11 | S 7 | SW 12 | SW 13 | S 8 | SW 24 | SW 24 | SW 9 | WSW 8 | SW 8 | S 11 | S 10 | S 10 | S 10 | SW 16 | SW 19 | S 12 | S 11 | S 11 | S 11 |
173 | 62 | 23 | 93 | 59 | 124 | 444 | 271 | 159 | 86 | 60 | 112 | 100 | 98 | 94 | 546 | 800 | 146 | 89 | 93 | 86 | |
Swell 3 Height (m) Direction Period (s) | W 10 | SSW 6 | SSW 11 | SSW 10 | SSW 10 | SW 18 | SW 13 | SW 13 | SW 12 | S 8 | S 8 | WSW 8 | WSW 10 | WSW 9 | W 8 | S 10 | S 10 | WSW 10 | SSW 11 | SSW 11 | — |
7 | 13 | 39 | 35 | 20 | 109 | 57 | 57 | 52 | 28 | 46 | 45 | 31 | 25 | 18 | 66 | 67 | 10 | 25 | 25 | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | N 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 14 | 0 | 0 | 39 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 39 | 0 | 0 | 39 | 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.










