
Surf Forecasts:
Jaco Beach surf forecast from 9 Aug 2026:
- Best quality surf: Friday 14 Aug, 6PM (local time) - 3ft (0.9m), 18s period, SW swell with glassy winds.
- Most powerful swell: Friday 14 Aug, 9PM (local time) - 4.5ft (1.3m), 18s period, SW swell with 973 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 9AM (local time) - 2.5ft (0.8m), 14s 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 Sunday (Aug 09) at 9AM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.5m and 8s. 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 18s and forecast to arrive on Friday (Aug 14) at 9PM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Sun 9th Aug) | 2.5ft (0.8m) 14s |
| Best Surf | 6PM (Fri 14th Aug) | 3ft (0.9m) 18s |
| Most Powerful | 9PM (Fri 14th Aug) | 4.5ft (1.3m) 18s |
Table - best surf conditions forecast for Jaco Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here, and I’ve been staring at the charts for our little corner of the coast for the next couple of weeks. Let me tell you, it’s not going to be all-time, but there are some real gems hidden in here if you play your cards right.
We’re looking at a classic slow-burn pattern. The start of the week is all about fun, small waves for the learner crew, but the real magic is brewing for the following weekend. There’s a bit of a flat-ish stretch in the middle, but don’t let that fool you.
Jaco Beach is the only spot on the menu, so that’s where we’re at.
Right now, Sunday morning (9 August) is tiny but perfect. You’re looking at clean 3 ft SSW groundswell with a solid 14-second period pushing in. The combined energy is weak (328), but with a glassy 3 mph offshore breeze from the ENE, it’s a glorious, clean slope for your log or a fun mid-length. You’ll have it mostly to yourself.
Monday and Tuesday mornings (10 & 11 August) are more of the same – clean, glassy conditions with 2 ft to 2 ft of SW swell. Perfect for beginners to get that first glide. The water temp is about average for this time of year, so a shortie is fine.
Now, you have to look past the mid-week hiccup. Wednesday and Thursday afternoons (12 & 13 August) get a bit iffy with cross-onshore winds and storm risks, but the mornings are still glassy gold. The real standout begins on Friday morning, 14 August. The swell bumps up to a clean 3 ft from the SW, period hangs at a juicy 18 seconds, and the energy jumps to a moderate 726. Light offshore winds will have it peeling nicely. This is the pick of the first week for a proper session.
But wait... Saturday 15 August morning is the absolute standout of the whole run. I’m telling you, this is the one to circle on your calendar. We’ve got a primo 4 ft SW groundswell at 16 seconds, with a moderate-to-strong energy reading of 1086. There’s not a breath of wind – dead glassy, calm conditions. This is the best quality wave we’re going to see. For experienced surfers, this is as good as it gets for a beachbreak. The sets will have real push, and the paddle out will be easy between lulls.
After that high, the following week (starting 17 August) is a bit more up and down, but still has its moments. Monday morning (17 August) is a solid follow-up with 3 ft SW swell and glassy conditions. Tuesday morning (18 August) has a 4 ft S swell, but the period drops to a short 8 seconds, making it a bit weaker and choppier. Wednesday morning (19 August) is another expert focus: 6 ft of SSW swell – that’s getting chunky, and over 5 ft, it’s too much for beginners. The period is short (9 seconds), so it’ll be a bit lumpy, but the 773 energy and dead calm winds mean it’s a fun, powerful wall for those who can handle it.
The tail end of the run, from the 20th to the 24th, drops back down into the 2 ft to 4 ft range. The winds get a bit messy, with more cross-onshore and afternoon storm risks. Friday morning (21 August) is worth a look with a glassy 3 ft S swell, but it’s not a standout compared to that epic Saturday.
So here’s the bottom line: The small stuff right now is perfect for learning. But if you want the best wave of the forecast, you gotta be in the water on the morning of Saturday, 15 August. That’s the one.
Stay stoked,
Rusty
Short Range ForecastLight rain (total 3mm), mostly falling on Sun night. Warm (max 30°C on Sun morning, min 26°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 22mm), heaviest during Wed night. Warm (max 29°C on Wed morning, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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 15 | SSW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SSW 15 | SW 14 | SW 18 | SW 13 | SW 16 | SW 16 | SW 16 | SW 15 | SW 18 | SW 20 | SW 18 | SW 18 | SW 17 |
Wave Graph | |||||||||||||||||||
272 | 264 | 293 | 175 | 136 | 212 | 150 | 203 | 319 | 144 | 211 | 206 | 155 | 137 | 111 | 306 | 623 | 686 | 951 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | cross-off | cross-off | glassy | cross | glassy | glassy | cross | cross-off | glassy | cross-on | glassy | glassy | cross-on | glassy | glassy | cross | cross |
High Tide | 11:05AM2.48m | 11:54PM2.22m | 12:16PM2.56m | 1:02AM2.39m | 1:20PM2.67m | 2:00AM2.59m | 2:17PM2.77m | 2:52AM2.77m | 3:08PM2.84m | 3:40AM2.89m | 3:56PM2.86m | ||||||||
Low Tide | 4:41AM0.68m | 5:40PM0.49m | 5:56AM0.61m | 6:46PM0.36m | 7:05AM0.49m | 7:44PM0.21m | 8:05AM0.35m | 8:36PM0.09m | 8:59AM0.22m | 9:23PM0.01m | 9:48AM0.15m | 10:08PM0.00m | |||||||
— | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | |
— | — | 5:58 | — | — | 5:58 | — | — | 5:57 | — | — | 5:57 | — | — | 5:55 | — | — | 5:55 | — | |
mm | — | — | — | 1 | — | — | — | — | 2 | 1 | — | 6 | 13 | — | 2 | — | — | — | — |
Temp °C | 28 | 30 | 30 | 28 | 29 | 30 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 |
Feels °C | 32 | 33 | 32 | 33 | 32 | 33 | 33 | 32 | 32 | 32 | 32 | 32 | 32 | 33 | 32 | 33 | 32 | 32 | 33 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SSW 12 | SW 14 | SW 14 | SW 13 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | SW 18 | SW 18 | SW 17 |
272 | 264 | 293 | 175 | 136 | 212 | 101 | 203 | 241 | 144 | 55 | 68 | 82 | 76 | 78 | 74 | 623 | 686 | 951 | |
Swell 2 Height (m) Direction Period (s) | S 9 | S 8 | SSW 18 | S 10 | S 10 | S 9 | SSW 15 | S 9 | SW 18 | S 9 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 20 | S 7 | S 12 | S 12 |
38 | 34 | 30 | 30 | 29 | 41 | 150 | 37 | 319 | 56 | 211 | 206 | 155 | 137 | 102 | 306 | 66 | 216 | 228 | |
Swell 3 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 22 | SW 16 | SW 16 | SW 20 | S 9 | SW 19 | S 9 | SW 18 | SW 13 | SW 13 | S 15 | S 13 | SW 18 | SW 16 | S 11 | SW 14 | — |
43 | 30 | 18 | 93 | 66 | 62 | 39 | 88 | 55 | 109 | 106 | 82 | 104 | 128 | 111 | 159 | 37 | 169 | — | |
Wind waves Height (m) Direction Period (s) | — | — | S 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | 47 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 0 | 122 | 0 | 0 | 132 | 0 | 0 | 151 | 0 | 0 | 75 | 0 | 0 | 75 | 0 | 0 | 75 | 1 |
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.











