Surf Forecasts:
Jaco Beach surf forecast from 8 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 9PM (local time) - 3ft (0.9m), 17s period, SW swell with glassy winds.
- Most powerful swell: Thursday 10 Sep, 3AM (local time) - 4ft (1.2m), 18s period, SW swell with 871 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 9AM (local time) - 2ft (0.6m), 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 Tuesday (Sep 08) at 9AM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.8m and 13s. 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 1.2m 18s and forecast to arrive on Thursday (Sep 10) at 3AM. 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+) | 9AM (Tue 8th Sep) | 2ft (0.6m) 18s |
| Best Surf | 9PM (Wed 9th Sep) | 3ft (0.9m) 17s |
| Most Powerful | 3AM (Thu 10th Sep) | 4ft (1.2m) 18s |
Table - best surf conditions forecast for Jaco Beach over the next 16 days.
The Lowdown
Alright, Rusty here, breakin’ down the next couple of weeks at Jaco Beach. We’ve got a steady run of waist-to-chest high SW groundswell, and the key is the mornings. The afternoons are a mess with storms and funky wind, so dawn patrol is your only real option.
Water temp is about what you’d expect for this time of year, so nothing wild there.
The first real standout is the morning of Thursday, September 10th. Swell is a solid 4ft from the SW, with a long 17-second period, packing a moderate-to-strong punch of energy (907). The wind is glassy, NNW at 3 mph. It’s gonna be clean and lined up. That’s your best bet in the first week.
Friday the 11th morning is similar, just a touch smaller at 4ft SW, still glassy, and a very good call. Saturday the 12th morning drops to 3ft but remains glassy, keeping the fun rolling.
There’s a bit of a lull after that, but the morning of Sunday, September 20th, shows promise: 3ft SW with a long 19-second period, glassy, and moderate energy (536). That’ll be a clean, fun session.
The absolute best of the whole lot is the morning of Tuesday, September 22nd. Swell hits 4ft from the W with a short 9-second period, but the combined energy is strong (598). The wind is dead calm, totally glassy, and the sky is clear. That’s your morning to not miss. The short period means it might be a little sectiony, but with that energy and glass, it’s still the one to beat.
For the long-range stuff, the morning of Monday, September 21st, is also worth a look: 3ft SW, glassy, clean, and strong energy (534). It’s a solid option, but it’s a week and a half out, so stay tuned.
Bottom line: set your alarm. Mornings are the ticket, afternoons are a wash. If you’re out on the 10th or the 22nd, you’ll be havin’ a good time.
Rusty.
Short Range ForecastHeavy rain (total 21mm), heaviest during Wed afternoon. Warm (max 29°C on Tue morning, min 26°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 31mm), heaviest during Sat night. Warm (max 29°C on Fri morning, min 26°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 19 |
Wave Graph  | |||||||||||||||||||
 kJ | 245 | 249 | 232 | 306 | 371 | 310 | 781 | 861 | 651 | 635 | 546 | 427 | 346 | 346 | 245 | 176 | 140 | 131 | 234 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-on | glassy | glassy | cross-on | glassy | glassy | cross-on | glassy | glassy | cross | glassy | glassy | cross | off | off | cross | off |
High Tide | 12:10PM2.45m | 00:52AM2.46m | 1:12PM2.57m | 1:46AM2.65m | 2:05PM2.68m | 2:33AM2.81m | 2:52PM2.75m | 3:16AM2.91m | 3:36PM2.77m | 3:56AM2.93m | 4:17PM2.74m | ||||||||
Low Tide | 5:54AM0.64m | 6:33PM0.42m | 7:00AM0.49m | 7:28PM0.29m | 7:55AM0.33m | 8:17PM0.18m | 8:44AM0.21m | 9:01PM0.12m | 9:28AM0.13m | 9:42PM0.12m | 10:10AM0.11m | 10:22PM0.17m | |||||||
 |  |  |  | | | | | | | | | | | | | | | | |
 | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — |
 | — | — | 5:43 | — | — | 5:42 | — | — | 5:42 | — | — | 5:40 | — | — | 5:39 | — | — | 5:39 | — |
mm | — | — | 2 | 1 | — | 12 | 2 | — | 4 | 1 | — | 6 | 6 | — | 4 | 9 | 1 | 4 | 11 |
Temp °C | 28 | 29 | 29 | 28 | 29 | 28 | 27 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 27 | 28 | 28 | 28 |
Feels °C | 32 | 32 | 32 | 33 | 32 | 31 | 32 | 32 | 32 | 33 | 32 | 33 | 32 | 32 | 33 | 31 | 31 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 16 | SW 16 | SW 16 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | S 9 | S 9 | S 8 |
| kJ | 245 | 202 | 172 | 306 | 371 | 310 | 781 | 861 | 651 | 635 | 546 | 427 | 346 | 346 | 245 | 176 | 99 | 96 | 105 |
Swell 2 Height (m) Direction Period (s) | S 6 | SW 18 | SW 17 | SW 11 | SW 12 | SW 13 | W 10 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 8 | S 9 | SW 13 | SW 13 | SW 19 |
| kJ | 20 | 249 | 232 | 64 | 68 | 79 | 18 | 36 | 47 | 43 | 47 | 37 | 38 | 27 | 50 | 76 | 140 | 108 | 234 |
Swell 3 Height (m) Direction Period (s) | SSW 18 | S 6 | S 6 | WSW 6 | W 10 | SW 19 | S 11 | WNW 10 | WNW 10 | WNW 10 | W 10 | SSW 19 | W 10 | S 10 | SW 18 | SSW 18 | SW 21 | SW 19 | SW 13 |
| kJ | 126 | 12 | 12 | 7 | 34 | 133 | 9 | 10 | 10 | 10 | 7 | 37 | 8 | 17 | 80 | 30 | 70 | 131 | 80 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 146 | 0 | 0 | 132 | 0 | 0 | 151 | 0 | 0 | 151 | 0 | 0 | 75 | 0 | 0 | 43 | 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.
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