
Surf Forecasts:
Jaco Beach surf forecast from 20 Jul 2026:
- Best quality surf: Saturday 25 Jul, 9PM (local time) - 3.5ft (1.1m), 19s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 27 Jul, 6AM (local time) - 4.5ft (1.3m), 17s period, SW swell with 1,062 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 9AM (local time) - 2.5ft (0.7m), 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 Monday (Jul 20) at 9AM. The primary swell is predicted to be 0.7m and 16s period with a secondary swell of 0.9m and 6s. Another secondary swell of 0.8m and 12s 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 1.3m 17s and forecast to arrive on Monday (Jul 27) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Jul 23) at 9PM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 20th Jul) | 2.5ft (0.7m) 16s |
| Best Surf | 9PM (Sat 25th Jul) | 3.5ft (1.1m) 19s |
| Most Powerful | 6AM (Mon 27th Jul) | 4.5ft (1.3m) 17s |
Table - best surf conditions forecast for Jaco Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what’s cooking for the next couple of weeks.
We’re looking at a solid run of surf coming up, with a few standout windows that’ll get you fired up. The water temp is about average for this time of year, so no need to go digging for a thicker wetsuit.
The real action kicks off straight away. Monday morning and afternoon at Jaco Beach are looking like a dream start. We’ve got a clean 2 ft to 3 ft swell from the southwest, a very long period of 16 seconds, and glassy conditions with a slight air. The combined swell energy is moderate (522-549). This is a big, long-period groundswell that will wrap in nicely, offering proper shape and long rides between sets. It’s a fantastic, clean option for everyone.
Tuesday morning remains glassy with a 3 ft SW swell at 15 seconds (463 energy), though it’s a touch smaller. The wind stays light, so it’s still worth a paddle.
Now, hold on to your board. The standout window is shaping up for Friday morning, July 24th and Saturday morning, July 25th. Friday morning sees a 2 ft swell from the SW, but with a huge 24-second period and glassy conditions (507 energy) – that’s a very long period groundswell. Saturday morning then kicks it up a notch: 3 ft from the SW with a 21-second period, zero wind, and glassy conditions (612 energy). This is the pick of the bunch. The sets will be clean, powerful, and spaced out.
Things start to build in size as we head into the following week. By Tuesday, July 28th, the swell pushes up to 4 ft to 5 ft from the SW, with periods around 17-18 seconds. The combined energy jumps to 1268-1484, which is strong. The winds are cross-offshore and clean. This is excellent surf, but at 5 ft it’s getting into the territory where beginners might struggle. It’s a sweet spot for intermediates and above.
Wednesday morning, July 29th, is another gem: 5 ft from the SW, 16 seconds, and glassy with zero wind (1033 energy). That’s a clean, powerful morning for experienced surfers.
After that, the swell drops back down through the 1st of August, with smaller, more inconsistent waves through the weekend. There’s a final little push on Monday, August 3rd, with a glassy 3 ft SW swell at 14 seconds (452 energy) – a nice, clean option to close out the outlook.
Keep in mind that for the long-period swells, Jaco Beach is exposed, so the wave quality will be best on a point or reef setup, but with the glassy winds, it’ll be clean regardless. Crowds are possible here, so get out early for the best ones.
The short period (6 seconds) on Thursday, July 23rd morning is poor, and the combined energy is low (143), so that session is a skip.
So, to sum it up: the best on offer is that Saturday morning, July 25th, with the glassy, long-period groundswell. The Tuesday, July 28th and Wednesday, July 29th sessions are also absolute crackers for the more experienced crew. The first week is your golden window.
Stay stoked,
Rusty
Short Range ForecastHeavy rain (total 36mm), heaviest during Tue night. Warm (max 28°C on Tue morning, min 25°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 67mm), heaviest during Fri night. Warm (max 29°C on Thu morning, min 24°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 13 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SSW 6 | SSW 7 | SW 18 | SW 24 | SW 24 | SSW 21 | SW 21 | SW 20 | SW 19 |
Wave Graph | |||||||||||||||||||
269 | 257 | 306 | 313 | 301 | 248 | 208 | 171 | 124 | 92 | 57 | 128 | 82 | 444 | 271 | 799 | 543 | 474 | 959 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | glassy | glassy | glassy | cross-on | cross | cross-off | cross | cross-off | cross | glassy | off | glassy | cross-off | off | glassy | cross-on | off |
High Tide | 7:07AM2.71m | 7:27PM2.39m | 7:54AM2.57m | 8:17PM2.22m | 8:42AM2.42m | 9:12PM2.07m | 9:35AM2.29m | 10:13PM1.97m | 10:33AM2.21m | 11:18PM1.93m | 11:33AM2.19m | 00:20AM1.96m | |||||||
Low Tide | 00:48AM0.28m | 1:25PM0.44m | 1:34AM0.47m | 2:15PM0.56m | 2:22AM0.64m | 3:09PM0.67m | 3:14AM0.79m | 4:08PM0.74m | 4:12AM0.88m | 5:09PM0.77m | 5:14AM0.92m | 6:09PM0.73m | |||||||
— | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | |
— | — | 6:02 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | |
mm | 13 | — | 1 | 2 | 1 | 4 | 11 | — | 4 | 5 | — | 2 | 2 | 4 | 4 | 50 | — | — | 1 |
Temp °C | 27 | 27 | 27 | 27 | 28 | 28 | 26 | 28 | 28 | 26 | 29 | 28 | 27 | 27 | 25 | 25 | 26 | 27 | 26 |
Feels °C | 31 | 31 | 31 | 32 | 31 | 31 | 30 | 32 | 32 | 29 | 32 | 31 | 31 | 31 | 28 | 27 | 30 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 6 | SSW 12 | SW 15 | SW 15 | S 12 | SW 13 | SSW 11 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SW 24 | S 7 | SSW 21 | SW 21 | SW 20 | SW 19 |
269 | 60 | 195 | 313 | 301 | 213 | 208 | 164 | 32 | 48 | 57 | 128 | 82 | 444 | 39 | 799 | 543 | 474 | 959 | |
Swell 2 Height (m) Direction Period (s) | SSW 6 | SSW 12 | SSW 6 | SSW 12 | S 12 | SW 14 | S 12 | SW 13 | SW 12 | SW 12 | SW 12 | SW 13 | SW 11 | S 6 | WSW 7 | S 7 | S 8 | S 8 | S 8 |
64 | 205 | 48 | 189 | 130 | 248 | 171 | 171 | 124 | 92 | 51 | 58 | 61 | 29 | 34 | 37 | 48 | 61 | 80 | |
Swell 3 Height (m) Direction Period (s) | SW 18 | SW 16 | SW 16 | SSW 7 | SSW 6 | SW 6 | SW 6 | W 10 | S 11 | SSW 11 | SSW 10 | SSW 10 | SW 18 | WSW 7 | SW 24 | SW 7 | SW 7 | SW 7 | SSW 11 |
109 | 257 | 306 | 51 | 32 | 9 | 5 | 8 | 59 | 39 | 35 | 33 | 79 | 34 | 271 | 37 | 21 | 27 | 39 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | N 3 | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 75 | 1 | 0 | 57 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 |
Best forecast wave conditions in Golfo de Nicoya | |||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||
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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.










