Guiones Surf Break

Guiones Surf Forecast and Surf Report

Lat Long: 9.93° N 85.67° W

Issued: 11 am 06 Jul 2026 (local time)

Forecast update in  hr  min

Today's Guiones sea temperature is
30.2° C

1.9°C warmer than normal for this time of year

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


Guiones surf forecast from 7 Jul 2026:

  • Best quality surf: Monday 6 Jul, 9PM (local time) - 3.5ft (1.0m), 19s period, SW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 7 Jul, 12PM (local time) - 4.5ft (1.4m), 18s period, SW swell with 1,263 kJ wave energy.
  • Next surfable swell (1★+): Monday 6 Jul, 9PM (local time) - 3.5ft (1.0m), 19s 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 Monday (Jul 06) at 9PM. The primary swell is predicted to be 1.0m and 19s period with a secondary swell of 0.9m and 15s. 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 1.4m 18s and forecast to arrive on Tuesday (Jul 07) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Mon 6th Jul)3.5ft (1.0m) 19s
Best Surf 9PM (Mon 6th Jul)3.5ft (1.0m) 19s
Most Powerful12PM (Tue 7th Jul)4.5ft (1.4m) 18s

Table - best surf conditions forecast for Guiones over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Alright folks, Rusty here with your long-range look at what's on offer. The next couple of weeks are looking like a bit of a mixed bag, but we've got some definite windows of clean surf to get excited about.

The period kicks off with a fresh pulse of groundswell. Water temps are sitting at a warm 86.4°F, which feels a touch warmer than normal for this time of year. The overall swell energy is moderate, clocking in at 754.

Monday, July 6th is a nice way to start the week. Guiones will see a clean 3ft SW groundswell with a very long 16-second period, all under a light offshore NE breeze. It's not huge, but it’ll be clean and fun. The afternoon sees the wind go a bit suspicious with a light cross-onshore, but the morning is the clear winner.

Tuesday, July 7th is shaping up to be your standout session. Another morning of clean 3.6ft surf from the SW gets better through the day, with the afternoon turning on for us. We’re looking at 4.6ft of SW groundswell, with a 18-second period, going completely glassy. Combined swell energy jumps to a strong 1247. That’s the pick of the early period – uncrowded for a Tuesday, as this spot can get crowded often, but the quality will be worth it.

Wednesday, July 8th holds a similar early vibe with a glassy 4.3ft SSW swell, but the afternoon cross-onshore wind will mess things up a bit.

From Thursday the 9th through to the weekend of the 12th, we're still seeing solid 3ft to 3.6ft swells but the energy drops a bit. Conditions will be variable with wind and a risk of thunderstorms, so the cleanest windows will be the early mornings when the offshore breezes kick in. It's still fun, just not as polished as Tuesday.

We then hit a bit of a lull from around the 13th through the 16th. The swell dips, and while there are pockets of clean surf in the mornings, it’s not going to be setting any worlds on fire.

Looking into the second week, things start to look promising again. Sunday, July 19th bumps back up with a clean 3.3ft S swell. It’s worth a morning paddle for sure. Then, Monday, July 20th brings a really interesting call. A 2ft SW groundswell with a very long 17-second period under offshore winds. The energy reading of 657 is actually quite punchy for the size. That long period will wrap in nicely and create some beautiful, lined-up waves, likely with nice long lulls between sets.

Tuesday, July 21st also has a clean morning on offer with another 2.6ft SW groundswell.

So, for the best of it, make a beeline for Guiones on Tuesday the 7th for the glassy 4.6ft set, and keep an eye on the 20th and 21st for some classic, long-period groundswell. The long-period stuff is best on a point or reef, but Guiones can handle it.

Stay stoked.

Short Range Forecast

Mostly dry. Warm (max 30°C on Mon morning, min 26°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 36mm), heaviest during Sat afternoon. Warm (max 30°C on Thu morning, min 25°C on Sat night). Wind will be generally light.

Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
3
4
4
4
3
2
3
3
2
2
2
1
2
2
2
2
2
2
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SW
16
1
SW
20
1
SW
19
1.1
SW
18
1.4
SW
18
1.4
SW
17
1.3
SSW
16
1.2
SW
16
1.2
SSW
16
1.1
SW
15
0.9
SSW
16
0.9
SSW
15
0.9
SW
15
0.9
SW
15
0.9
SW
15
0.9
SW
14
0.9
SSW
14
0.9
SSW
14
0.9
SW
14
0.6
SSW
14
0.6
SW
13
Wave Graph
Metric surfscale
Energy kJ
371
746
730
799
1124
1048
864
748
657
544
419
382
318
318
331
301
362
328
301
163
132
Wind (km/h)
10
NE
5
SSW
10
ENE
5
ENE
5
SW
10
NE
5
NE
10
SSW
10
NE
5
NE
10
SSW
5
ENE
10
ENE
10
S
5
E
15
ESE
15
SE
5
ENE
5
SE
5
NNW
5
NNW
Wind State
off
cross-on
off
off
glassy
cross-off
glassy
cross-on
cross-off
off
cross-on
off
off
cross
cross-off
cross-off
cross-off
off
glassy
glassy
cross
High Tide
6:56PM1.86m
7:27AM2.03m
7:44PM1.80m
8:14AM2.04m
8:39PM1.75m
9:08AM2.06m
9:41PM1.73m
10:09AM2.08m
10:49PM1.75m
11:14AM2.13m
11:57PM1.82m
12:19PM2.20m
1:02AM1.94m
Low Tide
12:56PM0.54m
1:04AM0.45m
1:44PM0.54m
1:48AM0.49m
2:39PM0.52m
2:41AM0.51m
3:39PM0.49m
3:42AM0.52m
4:44PM0.43m
4:49AM0.49m
5:49PM0.34m
5:57AM0.43m
6:51PM0.23m
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
mod rain
thunderstorm
rain showers
thunderstorm
thunderstorm
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:26
5:26
5:26
5:26
5:28
5:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:07
6:07
6:07
6:07
6:07
6:07
 mm
2
3
2
10
7
8
4
3
2
2
Temp °C
30
29
28
30
30
28
30
30
28
30
30
28
30
29
28
27
28
26
27
26
26
Feels °C
34
33
30
33
34
31
34
33
33
34
34
33
34
33
33
29
30
30
31
30
29
Swell 1
Height (m)
Direction
Period (s)
0.9
SW
16
1
SW
20
1
SW
19
1.1
SW
18
1.4
SW
18
1.4
SW
17
1.3
SSW
16
1.2
SW
16
1.2
SSW
16
1.1
SW
15
0.9
SSW
16
0.9
SSW
15
0.9
SW
15
0.9
SW
15
0.9
SW
15
0.9
SW
14
0.9
SSW
14
0.9
SSW
14
0.8
SSW
7
0.7
SW
12
0.6
SW
13
Energy kJ
371
746
730
799
1124
1048
864
748
657
544
419
382
318
318
331
301
362
328
60
154
132
Swell 2
Height (m)
Direction
Period (s)
0.6
SW
20
0.8
SW
16
0.7
SW
14
0.9
SW
14
0.6
S
8
0.7
S
12
0.7
S
11
0.7
S
11
0.7
S
11
0.7
S
9
0.7
S
9
0.7
S
10
0.7
S
9
0.7
S
9
0.7
S
8
0.7
S
7
0.8
S
7
0.8
S
7
0.9
SW
14
0.7
SSW
6
0.6
SW
6
Energy kJ
325
291
211
301
51
136
125
110
108
85
85
87
83
73
63
47
55
61
301
34
25
Swell 3
Height (m)
Direction
Period (s)
0.6
S
9
0.6
S
9
0.6
S
9
0.6
S
9
0.5
S
12
0.5
S
8
0.1
NW
15
0.1
W
15
0.3
SSW
15
0.2
SSW
20
0.4
SSW
18
0.4
SSW
18
0.6
SSW
16
0.4
SSW
16
0.4
SSW
15
0.5
SSW
14
0.6
SSW
14
0.5
S
7
Energy kJ
58
56
55
52
72
31
9
4
47
37
107
104
206
86
71
120
163
25
Wind waves
Height (m)
Direction
Period (s)
Energy kJ
Nearest Offshore or Glassy
Rating
(10 max)
3
4
3
4
4
4
3
3
3
3
3
2
2
2
2
3
3
2
2
2
1
Distance (km)
0
29
0
0
0
0
0
39
0
0
39
0
0
39
0
14
19
0
0
0
7
Best forecast wave conditions in Guanacaste
Rating
(10 max)
3
4
4
4
4
4
3
3
3
3
3
3
3
2
3
3
3
3
3
2
2
Best forecast wave conditions in Costa Rica
Rating
(10 max)
3
4
4
4
4
4
4
3
3
3
3
4
3
3
3
4
4
4
4
2
2
Header Global
Rating
(10 max)
7
5
5
9
8
9
7
7
6
6
6
5
5
4
5
5
4
9
7
5
7
  • 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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