Jaco Beach Surf Break

Lat Long: 9.60° N 84.62° W

Jaco Beach Surf Forecast and Surf Report

Issued: 11 am 17 Jul 2026 (local time)

Forecast update in  hr  min

Today's Jaco Beach sea temperature is
30.2° C
1.8° 

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 17 Jul 2026:

  • Best quality surf: Monday 20 Jul, 6AM (local time) - 3ft (0.9m), 13s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Friday 24 Jul, 9AM (local time) - 2ft (0.6m), 24s period, SW swell with 444 kJ wave energy.
  • Next surfable swell (1★+): Friday 17 Jul, 9PM (local time) - 3ft (0.9m), 13s period with SSW 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 Friday (Jul 17) at 9PM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 0.5m and 11s. 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 0.6m 24s and forecast to arrive on Friday (Jul 24) at 9AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Tuesday (Jul 21) at 12PM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Fri 17th Jul)3ft (0.9m) 13s
Best Surf 6AM (Mon 20th Jul)3ft (0.9m) 13s
Most Powerful 9AM (Fri 24th Jul)2ft (0.6m) 24s

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


The Lowdown

Hey, it's Rusty. Let's talk about Jaco Beach. The water's sitting at about 86°F, a touch warmer than usual for this time of year – about 3°F above average, so it's real nice. Crowds can pop up sometimes, especially when it's clean, but there's plenty of waves to go around for a beginner-friendly spot like this.

The next couple of days are pretty marginal – Friday and Saturday have small, weak swell and light cross-shore winds, not really worth paddling out for. But hang tight, because Sunday morning (July 19) we get a little glassy window with a 3ft S swell, 14-second period, and the energy's moderate (440). That's a decent start.

Now, the real standout hits Monday July 20. Early morning it's dead calm, glassy as a mirror, with a 2ft SW groundswell at 16 seconds – that's clean, long-period juice. The combined energy is moderate (514), and the conditions are perfect for a long, smooth session. That's easily the best bet in the first week. Tuesday and Wednesday also have clean mornings with offshore or glassy winds, but the swell's a touch smaller.

Later in the week, Thursday July 23 morning sees a bump in size to 4ft SSW, but the period drops to 8 seconds – short-period windswell, not as juicy. Still, with cross-offshore wind it's clean, so worth a look if you're keen.

Then Friday July 24 morning – very clean, offshore wind, and a 2ft SW swell with a crazy long 24-second period. That's a very long-period groundswell, and the energy is moderate (611). It'll be lined up and glassy, but at a point break or reef it'd be magic; on a beach break it might straighten out a bit. Still, a beautiful morning.

The second week brings more promise. Monday July 27 morning is the big one: glassy, calm, 4ft SW swell with 17-second period. The combined energy jumps to 1157 – strong wave energy. The forecast says excellent conditions for experienced surfers, and honestly, it's a real treat for anyone who can handle a bit of power. That's your other standout, though it's more than a week out so keep an eye on it.

Tuesday and Wednesday mornings also have clean glassy conditions and 4–4ft SW swell, but the wind swings a bit. Towards the end of the month, the swell settles back to 3–3ft, with glassy starts and clean afternoons. Overall, it's a solid run for Jaco – nothing huge, but plenty of clean, rideable waves if you pick the right windows.

Stay stoked,
Rusty

Short Range Forecast

Light rain (total 9mm), mostly falling on Sun night. Warm (max 30°C on Fri morning, min 26°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 25mm), heaviest during Wed afternoon. Warm (max 28°C on Mon morning, min 24°C on Wed night). Wind will be generally light.

Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
2
1
0
2
2
1
2
3
3
3
2
2
2
2
2
2
2
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
12
1
SSW
13
1
SSW
13
0.7
S
14
0.9
SSW
12
1
SSW
13
0.8
S
14
1
S
12
0.9
SSW
13
0.7
SW
16
0.8
SW
16
0.8
SW
15
0.8
SW
15
0.7
SW
14
1
S
12
0.7
SW
13
0.6
SW
12
1.1
S
7
1.2
SSW
8
0.4
SW
26
1.2
SSW
8
Wave Graph
Metric surfscale
Energy kJ
161
372
331
206
206
361
253
304
269
257
306
266
301
203
279
171
96
113
163
191
170
Wind (km/h)
5
N
10
S
5
N
5
NNW
10
SW
5
NE
5
NNW
15
SW
5
NE
0
NNW
0
N
5
NNE
5
NE
5
E
5
NNE
5
ENE
0
SSW
5
NNE
5
NE
5
N
5
E
Wind State
cross
cross
glassy
cross
cross-on
glassy
glassy
cross-on
glassy
glassy
glassy
cross-off
glassy
off
glassy
off
glassy
glassy
cross-off
cross
glassy
High Tide
5:02PM2.84m
5:35AM2.89m
5:50PM2.72m
6:21AM2.83m
6:38PM2.56m
7:07AM2.71m
7:27PM2.39m
7:54AM2.57m
8:17PM2.22m
8:42AM2.42m
9:12PM2.07m
9:35AM2.29m
10:13PM1.97m
Low Tide
10:55AM0.18m
11:17PM0.00m
11:46AM0.23m
00:02AM0.12m
12:35PM0.33m
00:48AM0.28m
1:25PM0.44m
1:34AM0.47m
2:15PM0.56m
2:22AM0.64m
3:09PM0.67m
3:14AM0.79m
4:08PM0.74m
clear
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
clear
thunderstorm
part cloud
thunderstorm
part cloud
thunderstorm
thunderstorm
rain showers
rain showers
thunderstorm
mod rain
light rain
mod rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:24
5:26
5:26
5:26
5:26
5:26
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:02
6:02
6:02
6:02
6:01
6:01
6:01
 mm
2
1
1
1
4
2
1
3
1
2
6
10
4
6
5
Temp °C
30
30
28
29
29
28
29
29
27
28
27
27
28
27
26
27
27
25
25
25
25
Feels °C
34
33
33
32
32
34
32
31
32
32
32
31
32
31
29
31
32
29
29
30
30
  • Map Icons:
  • Break
  • 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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