Jaco Beach Surf Break

Lat Long: 9.60° N 84.62° W

Jaco Beach Surf Forecast and Surf Report

Issued: 11 am 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Jaco Beach sea temperature is
30.0°C
1.7° 

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 28 Aug 2026:

  • Best quality surf: Saturday 29 Aug, 6PM (local time) - 5ft (1.5m), 16s period, SW swell with glassy winds.
  • Most powerful swell: Saturday 29 Aug, 3PM (local time) - 5ft (1.5m), 16s period, SW swell with 1,109 kJ wave energy.
  • Next surfable swell (1★+): Thursday 27 Aug, 9PM (local time) - 1.5ft (0.4m), 18s 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 Thursday (Aug 27) at 9PM. The primary swell is predicted to be 0.4m and 18s period with a secondary swell of 0.7m and 7s. Another secondary swell of 0.4m and 15s is also forecast. 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 1.5m 16s and forecast to arrive on Saturday (Aug 29) at 3PM. 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 (Thu 27th Aug)1.5ft (0.4m) 18s
Best Surf 6PM (Sat 29th Aug)5ft (1.5m) 16s
Most Powerful 3PM (Sat 29th Aug)5ft (1.5m) 16s

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


The Lowdown

Alright, Rusty here, checkin' in from the beach. Let's talk about what we've got cookin' for the next couple of weeks.

The bones of this outlook are solid. We've got a long-period, consistent SW groundswell at Jaco Beach that's gonna be a feature for a while. The water's a touch warmer than usual for this time of year at 86°F, so it's a nice treat. The real magic is gonna be those clean, glassy mornings.

Let's start with Thursday morning, the 27th. We've got small 1ft of SW swell creepin' in with a super long 18-second period and a light cross breeze. Combined wave energy is a moderate (218). It's a bit on the small and weak side, but you can get the board wet.

Now, Friday morning, the 28th, is where it starts to get good. Swell jumps to 2ft, still from the SW with a ridiculous 20-second period, and the wind goes dead glass. That's a recipe for silky clean lines. Combined energy is up to moderate (543), and you’ll be feelin’ that pulse.

Saturday morning, the 29th, is a real standout. 4ft of SW swell, period still a beefy 16 seconds, and the wind is calm. Dead glass. Combined energy is shot up to moderate-high (950). For the beach breaks, that long period might make ‘em a little strappy, but the reefs and points will be shuttin’ down proper. It's a morning for the experienced to get out there, as the 5ft afternoon is gettin' a little more thumping.

Sunday morning, the 30th, is another gem. 4ft of SW swell, a 14-second period, and again, glassy as a mirror. It’s pushin’ moderate energy (819) and will be a pleasure to sit out in.

We'll have a few quieter days through the start of September before Friday morning, September 4th, fires up. That's the pick of the whole period. We're lookin' at 4ft of super clean SW swell, a solid 17-second period, and glassy conditions. The combined energy is strong (1036). This is excellent, heavy stuff for the experienced crew—too much for beginners.

Following that, Saturday morning, September 5th, keeps the quality high with 4ft of SW swell and glassy wind. Energy is still strong (1000).

The run continues strong into the second week. Tuesday morning, September 8th, sees a bit of a lull in height but the period jumps to 19 seconds off a 2ft swell. It’s glassy and clean with moderate energy (507)—a sleeper day for a longboard.

The real shout for the second week is Wednesday morning, September 9th. 4ft of SW swell, a 17-second period, and the wind is calm. That’s a promise of powerful, clean walls. Combined energy is moderate-high (953). It's a top-tier morning.

Then Thursday morning, September 10th and Friday morning, September 11th both offer 4ft to 4ft of SW swell with glassy conditions. The pick is still that Wednesday morning, but these are solid, consistent days to bank on. Crowds at Jaco Beach are a possibility (sometimes crowded), so get in early.

Rusty

Short Range Forecast

Moderate rain (total 16mm), heaviest on Fri night. Warm (max 29°C on Thu morning, min 27°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 55mm), heaviest during Tue morning. Warm (max 29°C on Sun afternoon, min 24°C on Tue morning). Wind will be generally light.

Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
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
0
2
3
1
3
3
3
3
3
2
3
2
1
2
0
2
2
1
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)
0.4
SW
18
0.4
SW
18
0.6
SW
15
0.7
SW
20
0.8
SW
19
1.1
SW
18
1.2
SW
16
1.5
SW
16
1.3
SW
15
1.3
SW
14
1.3
SW
14
1.2
SW
14
1.1
SW
13
1
SW
13
0.9
SW
13
0.8
SW
13
0.8
SW
13
0.7
SW
12
0.7
SW
13
0.6
SW
17
0.6
SW
16
Wave Graph
Metric surfscale
Energy kJ
108
81
143
373
441
777
746
1109
842
746
726
549
392
342
282
196
190
149
170
222
163
Wind (km/h)
10
NNW
10
SSW
5
NNW
5
NNW
10
SW
5
NE
0
N
5
SSW
5
NNE
0
NNE
10
SSW
0
NW
0
SW
15
S
5
ESE
30
SE
10
SSE
10
ESE
5
NW
5
SSW
5
ESE
Wind State
cross
cross-on
glassy
glassy
cross-on
glassy
glassy
cross-on
glassy
glassy
cross
glassy
glassy
cross
cross-off
cross-off
cross-off
cross-off
cross-on
cross
glassy
High Tide
2:24PM2.46m
2:52AM2.50m
3:03PM2.55m
3:27AM2.64m
3:39PM2.60m
4:01AM2.74m
4:16PM2.62m
4:36AM2.80m
4:53PM2.61m
5:12AM2.81m
5:32PM2.55m
5:51AM2.77m
6:15PM2.46m
Low Tide
8:38PM0.40m
8:57AM0.49m
9:13PM0.32m
9:34AM0.38m
9:47PM0.27m
10:11AM0.30m
10:21PM0.25m
10:48AM0.26m
10:57PM0.26m
11:27AM0.25m
11:35PM0.31m
12:10PM0.30m
00:17AM0.39m
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thunderstorm
part cloud
clear
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
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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>
5:50
5:49
5:49
5:47
5:47
5:46
5:45
 mm
3
3
3
1
5
1
1
6
1
7
14
24
1
1
4
Temp °C
29
29
28
29
29
28
29
29
28
28
29
28
29
28
27
25
26
26
28
28
27
Feels °C
32
33
34
33
32
33
33
33
33
33
33
33
33
31
32
28
29
30
32
31
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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