Surf Forecasts:
Jaco Beach surf forecast from 26 Aug 2026:
- Best quality surf: Saturday 29 Aug, 9PM (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★+): Wednesday 26 Aug, 9PM (local time) - 3ft (0.9m), 7s period with S 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 Wednesday (Aug 26) at 9PM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.3m 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 16s and forecast to arrive on Saturday (Aug 29) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 26th Aug) | 3ft (0.9m) 7s |
| Best Surf | 9PM (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, this is Rusty checking in from Jaco Beach. Right now, we've got a bit of a slow start, but don't write the week off just yet. The pattern over the next 16 days is all about waiting for the right windows, and believe me, there are some absolute gems hiding in there.
We're kicking things off with some pretty ordinary conditions. The water is sitting at a warm 86°, which is a touch warmer than normal for this time of year, so you won't need a wetsuit, that's for sure. The first real standout for me is Friday afternoon, the 28th of August. The wind is forecast to go glassy, and we'll see a 3 ft SW groundswell with a very long period of 19 seconds pumping in. The combined energy is moderate at 576, so there's a bit of push behind it. This is a sweet spot for the more experienced crew, as that long period will be lining up nicely on the exposed beach break.
Then, hold onto your boards, because Saturday morning, the 29th of August is shaping up to be a ripper. The wind is glassy out of the ESE, and we've got a 4 ft SW swell with a 16-second period. The energy is ramping up significantly to 937, making for some proper waves. This is a great call for the morning session before the afternoon storms roll in. The consistency here is very consistent, so you'll get plenty of waves, but expect crowds to be possible – it's a popular spot for a reason.
Moving into the first week of September, there's a bit of a gap after the 31st, but Tuesday afternoon, the 1st of September offers a surprise. The wind goes glassy again, and we get a 5 ft SSW swell. The period is short at 7 seconds, which is a bit of a windswell vibe, but the clean conditions will make it fun and user-friendly for the beginners out there.
The real headline act, however, is Friday morning, the 4th of September. This is the one to circle on your calendar. The wind is glassy from the ESE, and we're looking at a 4 ft SW swell with a 17-second period, delivering a combined energy of 1016. That's a solid, powerful groundswell that will have the point breaking with some real shape. The data says this is excellent for experienced surfers, and I'd agree. This is a morning for the dedicated crew who can handle some size and power.
The following week keeps the fun going. Wednesday morning, the 9th of September is another glassy one with a 3 ft SW swell (17-second period, energy at 696), and Wednesday afternoon cleans up nicely with a cross-offshore wind and a 4 ft SW swell (16-second period) cranking the energy to 1161. That afternoon session is another excellent call for experienced surfers. Finally, Thursday morning, the 10th of September is a beauty with calm, glassy conditions and a 5 ft SW swell (16-second period, energy at 1094). It's a powerful, clean start to the day.
So, to sum it up: the early days are a bit average, but the glassy mornings are your friend. The absolute standouts are Friday afternoon the 28th, Saturday morning the 29th, and that Friday morning on the 4th of September. Get out there and score.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Wed night. Warm (max 29°C on Wed morning, min 27°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 46mm), heaviest during Sun afternoon. Warm (max 29°C on Sat morning, min 26°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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 | S 7 | S 7 | SW 18 | SW 18 | SW 15 | SW 20 | SW 19 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SSW 7 | SSW 7 | SSW 7 |
Wave Graph | |||||||||||||||||||||
110 | 79 | 72 | 108 | 81 | 143 | 373 | 441 | 777 | 746 | 1109 | 842 | 746 | 726 | 549 | 392 | 342 | 276 | 259 | 231 | 178 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | glassy | cross-on | cross | glassy | cross-on | glassy | cross-off | glassy | cross | glassy | glassy | cross-on | cross | glassy | cross-on | off | cross-off | glassy | cross-off |
High Tide | 1:43PM2.35m | 2:16AM2.34m | 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 | ||||||||
Low Tide | 8:02PM0.50m | 8:18AM0.62m | 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 | ||||||||
5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | |
— | 5:50 | — | — | 5:50 | — | — | 5:49 | — | — | 5:49 | — | — | 5:47 | — | — | 5:47 | — | — | 5:46 | — | |
mm | — | 2 | 5 | — | 2 | — | 1 | 2 | 1 | — | 5 | 4 | 1 | 8 | 5 | — | 4 | 19 | 8 | — | 1 |
Temp °C | 29 | 29 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 27 | 28 | 29 | 27 | 29 | 28 | 27 | 27 | 27 | 27 |
Feels °C | 33 | 32 | 33 | 32 | 32 | 33 | 32 | 33 | 33 | 32 | 33 | 32 | 33 | 32 | 32 | 33 | 32 | 31 | 30 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | S 7 | SSW 7 | SSW 7 | SSW 7 | SW 19 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | S 7 | SSW 7 | SSW 7 | SSW 7 |
51 | 79 | 72 | 56 | 58 | 60 | 45 | 441 | 777 | 746 | 1109 | 842 | 746 | 726 | 549 | 392 | 342 | 276 | 259 | 231 | 178 | |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 14 | SW 18 | SW 15 | SW 15 | SW 20 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SW 6 | WSW 6 | S 6 | WSW 6 | SW 13 | SW 13 | SW 13 | SW 12 |
110 | 57 | 54 | 108 | 76 | 143 | 373 | 44 | 44 | 53 | 64 | 54 | 51 | 31 | 25 | 40 | 12 | 245 | 199 | 193 | 149 | |
Swell 3 Height (m) Direction Period (s) | SSW 11 | SSW 11 | SSW 19 | SW 14 | SW 18 | SW 21 | SW 14 | SW 14 | SW 13 | SW 13 | S 10 | S 10 | S 8 | S 10 | S 7 | WSW 6 | W 9 | W 9 | SW 12 | SW 18 | SW 18 |
12 | 11 | 35 | 54 | 81 | 115 | 125 | 91 | 113 | 138 | 35 | 18 | 12 | 46 | 33 | 15 | 6 | 6 | 36 | 113 | 112 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 7 | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 88 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 75 | 0 | 1 | 145 | 0 | 1 | 0 | 0 | 0 | 48 | 0 | 0 | 75 | 14 | 0 | 90 | 0 | 54 | 0 | 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.











