Jaco Beach Surf Break

Lat Long: 9.60° N 84.62° W

Jaco Beach Surf Forecast and Surf Report

Issued: 11 am 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Jaco Beach sea temperature is
30.5° C
2.2° 

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


Jaco Beach surf forecast from 15 Aug 2026:

  • Best quality surf: Saturday 15 Aug, 9PM (local time) - 4.5ft (1.3m), 16s period, SW swell with glassy winds.
  • Most powerful swell: Saturday 15 Aug, 6PM (local time) - 4.5ft (1.3m), 16s period, SW swell with 793 kJ wave energy.
  • Next surfable swell (1★+): Saturday 15 Aug, 9PM (local time) - 4.5ft (1.3m), 16s period with SW swell.

Best Forecast Surf Conditions for Jaco Beach this week:

The surf forecast for Jaco Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 15) at 9PM. The primary swell is predicted to be 1.3m and 16s period with a secondary swell of 1.0m and 12s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Jaco Beach in the next 16 days are 1.3m 16s and forecast to arrive on Saturday (Aug 15) at 6PM. 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 (Sat 15th Aug)4.5ft (1.3m) 16s
Best Surf 9PM (Sat 15th Aug)4.5ft (1.3m) 16s
Most Powerful 6PM (Sat 15th Aug)4.5ft (1.3m) 16s

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


The Lowdown

Alright, let’s get into it. For the first surf, we’re looking at Saturday morning at Jaco Beach. The water’s sitting at 86.9°, which is a good few degrees warmer than it usually is this time of year, so you’re gonna feel that bathwater. We’ve got a clean 4.3ft of SW groundswell rolling in with a long 16-second period, and the wind is dead glassy out of the NNW. It’s a solid combo – that energy is strong, coming in at 1086. This is the standout of the early week, perfect for anyone with a few sessions under their belt. The afternoon will see a light cross breeze kick up, and the energy drops a touch to 980, still surfable but the magic is gone.

Sunday morning stays glassy with a calm wind, and we have 3.6ft of SSW swell with a 15-second period. It’s fun, clean, and the energy is a moderate 671. It’s a good session, just a notch below Saturday. The afternoons are pretty much a write-off until Thursday – that typical afternoon storm risk rolls in with a light cross-breeze that puts a bit of chop on things. Monday morning is similar, 3.3ft of SW swell at 14 seconds, still glassy, energy at 576, and very good conditions. Tuesday sees the period drop right off to 8 seconds, so the waves get a bit more jumbled and less powerful – the morning’s still clean with a 3.9ft S swell, but it’s not the same quality.

We get a bit of a lull from Wednesday through the rest of that first week. Wednesday morning is tiny at 2.6ft, and it just dribbles down from there. Thursday morning picks up a little with a short-period 3.6ft SSW swell, but the afternoons are messy with that cross-breeze. It’s a bit of a grind, to be honest. There’s a gap in good quality from Tuesday afternoon right through to Friday, just a bunch of smaller, wind-affected waves. The weekend coming up is more of the same – small, clean mornings but nothing with any real push.

Now, looking out to the second week. It’s promising but you gotta wait for it. The 23rd has a small, glassy 3ft S swell with a 9-second period, and by the 24th the period jumps up to 18 seconds, but the size drops to 1.6ft. It’s clean, but it’s small. And that long period groundswell will be breaking pretty straight on this beach. The real kicker is the 29th and 30th. Saturday the 29th sees a return of a good-looking swell – 2.6ft in the morning, building into the afternoon as the wind goes cross-off, with the period stretching out to 16 seconds and the energy climbing to 612. Then Sunday the 30th is the one to circle. It’s a 3.6ft SSW groundswell in the morning, glassy with the ENE wind, strong energy at 708. The afternoon bumps up to 3.9ft, but the wind goes cross-on, so get on it early. That Sunday morning is your standout for the back half – worth the wait.

Jaco Beach is very consistent, so even in the small stuff, there’s always something to ride. But for the best of it, hit the mornings.

Short Range Forecast

Heavy rain (total 45mm), heaviest during Sun night. Warm (max 29°C on Sat morning, min 24°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 37mm), heaviest during Wed night. Warm (max 28°C on Tue morning, min 26°C on Tue morning). Wind will be generally light.

Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
2
3
3
2
2
3
2
2
2
1
3
2
1
1
2
1
2
2
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
SW
16
1.3
SW
16
1.3
SW
16
1.1
SW
15
1.1
SW
14
1.1
SW
14
1
SW
14
1
SW
14
0.9
SW
14
1.2
S
8
1.2
S
8
0.9
SW
16
0.8
SW
15
0.8
SW
14
1.1
SSW
8
1.1
SSW
9
1.1
SSW
9
1
S
10
1.1
SSW
11
1.1
SSW
11
1.1
S
10
Wave Graph
Metric surfscale
Energy kJ
909
803
773
535
528
466
371
371
313
181
177
406
255
251
160
180
193
225
308
303
270
Wind (km/h)
5
NNW
10
S
5
SE
0
NNW
10
SSW
5
SW
5
NNW
10
S
5
N
5
E
10
SSW
5
NNE
0
NNW
10
SW
5
NW
0
NNW
10
SSW
5
E
5
ENE
10
S
5
N
Wind State
glassy
cross
cross-off
glassy
cross
cross-on
glassy
cross
glassy
off
cross-on
glassy
glassy
cross-on
cross-on
glassy
cross
off
glassy
cross
cross
High Tide
4:41PM2.81m
5:06AM2.93m
5:24PM2.70m
5:48AM2.84m
6:07PM2.56m
6:28AM2.70m
6:50PM2.38m
7:10AM2.53m
7:35PM2.20m
7:55AM2.36m
8:25PM2.04m
8:46AM2.21m
9:26PM1.91m
Low Tide
10:35AM0.13m
10:51PM0.06m
11:20AM0.17m
11:32PM0.17m
12:03PM0.27m
00:13AM0.32m
12:46PM0.40m
00:54AM0.50m
1:31PM0.54m
1:38AM0.67m
2:21PM0.69m
2:27AM0.83m
3:19PM0.80m
clear
mod rain
thunderstorm
rain showers
mod rain
thunderstorm
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
part cloud
mod rain
thunderstorm
clear
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:28
5:28
5:28
5:28
5:28
5:28
5:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:55
5:54
5:54
5:53
5:53
5:52
5:52
 mm
10
8
1
8
12
4
2
1
10
1
6
9
6
4
16
1
Temp °C
29
29
27
28
27
25
27
27
26
28
28
27
28
28
27
28
28
26
29
28
27
Feels °C
33
32
32
32
31
30
31
30
30
32
32
31
32
32
31
33
32
30
33
32
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 Jaco Beach Surf forecast

The above surf forecast table for Jaco Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jaco Beach can be found by selecting the local surf guide option on the grey menu. Our Jaco Beach 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 (Jaco Beach) 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 Jaco Beach 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.

Are you planning a holiday in Golfo de Nicoya? If you are looking for accommodation near Jaco Beach, camping, hotels and holiday cottages in Golfo de Nicoya, consider staying in Esparza which is 43 km (27 miles) away. Other places in and around Golfo de Nicoya where you can find information about places to rent, and car hire include San Rafael Abajo which is 45 km (28 miles) away, Tejar, Chacarita and Puntarenas.

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