Guiones Surf Break

Lat Long: 9.93° N 85.67° W

Guiones Surf Forecast and Surf Report

Issued: 11 am 22 Jul 2026 (local time)

Forecast update in  hr  min

Today's Guiones sea temperature is
30.0° C
1.8° 

Guiones surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


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 TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Wed 22nd Jul)2.5ft (0.7m) 11s
Best Surf12AM (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 Forecast

Heavy 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 Summary

Light 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
Rating
(10 max)
2
1
1
1
0
3
3
3
4
3
2
4
3
4
4
4
3
4
4
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SW
13
0.7
SW
13
0.6
SW
12
0.6
SW
12
0.9
SSW
8
1.4
SW
8
0.6
SW
24
0.5
SW
24
1.1
SW
21
0.8
SW
21
0.9
SW
20
1.3
SW
19
1.1
SW
19
1.3
SW
18
1.3
SW
17
1.1
SW
19
1.1
SW
19
1.6
SW
18
1.7
SW
18
1.7
SW
17
1.6
SW
16
Wave Graph
Metric surfscale
Energy kJ
173
161
92
93
93
281
444
271
1015
641
647
1210
800
996
1074
791
800
1591
1741
1682
1330
Wind (km/h)
10
NE
5
SSW
5
NE
5
NE
15
SW
5
NE
10
NNE
0
SSW
15
ESE
5
NNE
10
SSE
10
NE
5
ENE
5
S
10
NE
5
NE
10
SSW
10
NE
5
E
15
S
15
SE
Wind State
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
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thunderstorm
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thunderstorm
thunderstorm
part cloud
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thunderstorm
thunderstorm
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part cloud
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part cloud
clear
thunderstorm
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:30
5:30
5:31
5:31
5:31
5:31
5:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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
  • 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)
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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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