
Surf Forecasts:
Jaco Beach surf forecast from 21 Jul 2026:
- Best quality surf: Saturday 25 Jul, 9PM (local time) - 3.5ft (1.1m), 19s period, SW swell with offshore winds.
- Most powerful swell: Tuesday 28 Jul, 3PM (local time) - 5ft (1.5m), 17s period, SW swell with 1,282 kJ wave energy.
- Next surfable swell (1★+): Tuesday 21 Jul, 6PM (local time) - 2.5ft (0.8m), 14s 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 Tuesday (Jul 21) at 6PM. The primary swell is predicted to be 0.9m and 12s period with a secondary swell of 0.8m and 14s. 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 17s and forecast to arrive on Tuesday (Jul 28) at 3PM. Winds are predicted to be cross-shore 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 3AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Tue 21st Jul) | 2.5ft (0.8m) 14s |
| Best Surf | 9PM (Sat 25th Jul) | 3.5ft (1.1m) 19s |
| Most Powerful | 3PM (Tue 28th Jul) | 5ft (1.5m) 17s |
Table - best surf conditions forecast for Jaco Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's break down the next couple of weeks for Jaco Beach. The water is sitting at a toasty 86°, which is a touch warmer than normal for this time of year, so you might not even need a spring suit.
We've got a bit of a slow start, but things start to pick up. The real standout window looks to be from Friday the 24th through Tuesday the 28th. For the first few days, from the 21st to the 23rd, the waves are small and a bit inconsistent. The best of that early period is Tuesday morning (21st) with glassy conditions, a clean 3ft SW swell and a very long 15-second period. That long period will groom those lines, making for a nice, mellow paddle. You'll feel that moderate energy (474) in the water.
Wednesday morning (22nd) is also glassy with similar 2ft SW swell, but the energy is dropping. Thursday (23rd) is a write-off – short period windswell that’s all over the place.
Now, here is where we get excited. Friday morning (24th) – the stars align. We have a glassy calm, 2ft of pure SW groundswell with a super long 24-second period. That’s a proper pulse coming through. The combined energy is getting strong (604), and those extra-long periods mean the sets will have serious push. The breaks along the beach will hold up nicely if the tide is right.
Saturday (25th) keeps the fun rolling with clean, cross-offshore winds and a solid 3ft SW swell (21-second period). Energy is still pumping (623). Sunday morning (26th) is the highlight of the entire run. It’s glassy again, the swell is up to a playful 4ft, the period is 19 seconds, and the combined energy is cranking at 891. This is the morning to be in the water. The lineups will be a bit more organized and the paddle out will be a breeze between sets.
Monday (27th) keeps the 4ft SW swell but the winds get a little tricky, turning light cross-shore in the morning and cross-onshore in the afternoon. Still surfable. Tuesday morning (28th) is the last big push, with a 4ft SW swell, clean cross-offshore wind, and a combined energy hitting 1252. That’s moderate-to-strong wave energy, offering some proper grunt for more experienced surfers. After that, the swell slowly backs off through the rest of the week and into early August.
For a break that is very consistent, Jaco is known for drawing a crowd sometimes, so get out early to beat the rush. Through the second week, from the 29th onwards, we’re looking at smaller, cleaner morning windows with waist-high glassy waves in the 2 to 3ft range. For instance, Friday morning (31st) and Saturday morning (1st of Aug) both offer glassy 3ft SW swell. The weekend of the 2nd and 3rd also has glassy mornings with waist-high swell and a long period that will keep things fun.
Keep an eye on the long-range for Wednesday morning (5th of August) – glassy, 2ft of a longer-period SSW swell. It won’t be big, but it will be clean and perfect for a longboard session if you are patient.
Rusty.
Short Range ForecastHeavy rain (total 22mm), heaviest during Tue afternoon. Warm (max 28°C on Tue morning, min 25°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 20mm), heaviest during Fri afternoon. Warm (max 28°C on Sun morning, min 24°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | |||||||||||||||
AM | PM | 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) | SW 15 | SW 14 | SSW 12 | SW 13 | S 11 | SW 12 | SSW 7 | SW 26 | S 7 | SW 24 | SW 24 | SSW 21 | SW 21 | SW 20 | SW 19 | SW 19 | SW 18 | SW 17 | SW 19 | SW 19 | SW 18 |
Wave Graph | |||||||||||||||||||||
301 | 248 | 224 | 171 | 124 | 92 | 66 | 171 | 65 | 444 | 271 | 799 | 543 | 474 | 959 | 808 | 799 | 851 | 920 | 930 | 686 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-on | glassy | glassy | cross-off | cross | cross | off | glassy | cross-off | cross-off | cross-off | cross-off | off | glassy | cross-on | glassy | cross | cross-on | cross-off |
High Tide | 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 | 12:30PM2.23m | 1:15AM2.04m | 1:22PM2.31m | 2:02AM2.15m | ||||||||
Low Tide | 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 | 6:15AM0.89m | 7:03PM0.66m | 7:09AM0.83m | 7:50PM0.56m | ||||||||
5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | |
— | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | |
mm | — | 4 | 3 | — | 5 | 5 | — | 2 | 3 | — | 9 | 8 | 1 | — | — | — | 2 | — | — | 5 | 13 |
Temp °C | 28 | 28 | 26 | 27 | 28 | 26 | 28 | 28 | 27 | 27 | 27 | 25 | 27 | 27 | 26 | 28 | 28 | 27 | 29 | 28 | 27 |
Feels °C | 31 | 31 | 31 | 31 | 33 | 29 | 30 | 30 | 31 | 30 | 29 | 29 | 31 | 30 | 28 | 32 | 32 | 31 | 32 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SSW 12 | S 11 | S 11 | S 6 | SSW 7 | SSW 7 | S 7 | S 7 | WSW 8 | SSW 21 | SW 21 | SW 20 | SW 19 | SW 19 | SW 18 | SW 17 | SW 19 | SW 19 | SW 18 |
301 | 248 | 224 | 157 | 114 | 31 | 66 | 151 | 62 | 74 | 76 | 799 | 543 | 474 | 959 | 808 | 799 | 851 | 920 | 930 | 686 | |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 7 | SW 8 | S 7 | S 7 | S 8 | S 8 | SSW 11 | SSW 8 | SSW 10 | S 10 | SW 14 | SW 14 | SW 14 |
130 | 130 | 208 | 171 | 124 | 92 | 51 | 54 | 65 | 86 | 48 | 47 | 43 | 45 | 156 | 49 | 133 | 94 | 203 | 203 | 285 | |
Swell 3 Height (m) Direction Period (s) | SSW 6 | S 6 | W 10 | W 10 | W 9 | SSW 11 | SSW 10 | SW 26 | SW 11 | SW 24 | SW 24 | WSW 8 | WSW 7 | WSW 8 | SW 12 | SSW 10 | SW 11 | SW 22 | S 10 | S 10 | S 9 |
43 | 21 | 8 | 8 | 7 | 39 | 35 | 171 | 45 | 444 | 271 | 56 | 37 | 22 | 65 | 34 | 19 | 73 | 68 | 65 | 59 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 58 | 16 | 0 | 0 | 0 | 1 | 36 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 14 | 0 | 1 | 151 | 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.










