Surf Forecasts:
Jaco Beach surf forecast from 1 Sep 2026:
- Best quality surf: Thursday 3 Sep, 9PM (local time) - 3.5ft (1.1m), 15s period, SW swell with offshore winds.
- Most powerful swell: Friday 4 Sep, 12PM (local time) - 5ft (1.6m), 17s period, SW swell with 1,432 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 12AM (local time) - 3ft (0.9m), 13s 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 01) at 12AM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 0.6m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Jaco Beach in the next 16 days are 1.6m 17s and forecast to arrive on Friday (Sep 04) at 12PM. 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+) | 12AM (Tue 1st Sep) | 3ft (0.9m) 13s |
| Best Surf | 9PM (Thu 3rd Sep) | 3.5ft (1.1m) 15s |
| Most Powerful | 12PM (Fri 4th Sep) | 5ft (1.6m) 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 shaking for the next couple of weeks down at Jaco Beach.
We’ve got a run of small, clean conditions kicking things off, but the real standout is brewing for the first weekend of September. The water temp is a touch warmer than normal at 86°, which is nice for a long session.
Starting out Monday afternoon, it’s a bit of a write-off with a risk of thunderstorms and a cross-on wind messing up the 3ft SW swell. Not one to bother with. Tuesday the 1st of September, however, brings a nice change. Tuesday morning is glassy with a 3ft SW swell. The energy is weak (296) but it’s clean. That glassy, light air wind is a major positive. Tuesday afternoon gets a bit more side-shore.
Wednesday the 2nd has a small 3ft swell in the morning, but it’s cross-on and messy. Wednesday afternoon is a loss with thunderstorms and a cross-on 9 mph wind. Thursday the 3rd of September morning is the first real gem – dead calm, glassy, 2ft SW swell. It’s small but it’ll be perfect for a longboard. The energy is moderate (374).
Now, here’s the standout. Friday the 4th of September morning. We’ve got a 4ft SW swell with a period of 17 seconds – that’s proper groundswell, the kind that brings in some push. It’s glassy, clean, and the energy is solid (1063). This is excellent surf for experienced surfers. Saturday the 5th of September morning is nearly as good – 5ft SW swell with glassy conditions again and strong energy (1343). This is the pick of the entire forecast. It’s a little on the bigger side for beginners, but for anyone with a bit of time in the water, this is the window to clear your schedule.
Sunday the 6th holds clean 4ft to 4ft SW swell with good energy, and the next week continues with a lot of glassy mornings and small, clean waves in the 3ft to 4ft range. The long-period swells (16-19 seconds) on the 10th and 11th of September will be offering a bit more drawn-out power, but they’ll be working best on the points and reefs if you can find the right sandbank, as these longer periods can straighten out a beach break.
We do have a stretch in the second week where the swell dips very small, but there are still plenty of those early glass-offs to make the most of it. For the best quality, don’t miss Friday the 4th or Saturday the 5th morning sessions.
Stay stoked,
Rusty
Short Range ForecastHeavy rain (total 37mm), heaviest during Wed afternoon. Warm (max 29°C on Mon afternoon, min 26°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 48mm), heaviest during Thu night. Warm (max 29°C on Sat morning, min 25°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 18 | SW 17 | SW 16 | SW 16 | SW 19 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 342 | 282 | 199 | 216 | 212 | 212 | 222 | 163 | 248 | 504 | 795 | 962 | 1282 | 1225 | 1317 | 1193 | 788 | 676 | 453 | 447 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | glassy | cross | glassy | cross-on | cross-on | glassy | glassy | cross-on | off | glassy | cross | glassy | glassy | cross-on | cross-on | glassy | cross-off | cross-off |
High Tide | 4:53PM2.61m | 5:12AM2.81m | 5:32PM2.55m | 5:51AM2.77m | 6:15PM2.46m | 6:35AM2.69m | 7:03PM2.34m | 7:26AM2.57m | 8:00PM2.22m | 8:27AM2.45m | 9:10PM2.14m | 9:39AM2.37m | 10:31PM2.15m | |||||||
Low Tide | 10:57PM0.26m | 11:27AM0.25m | 11:35PM0.31m | 12:10PM0.30m | 00:17AM0.39m | 12:57PM0.38m | 1:06AM0.50m | 1:52PM0.49m | 2:04AM0.62m | 2:58PM0.57m | 3:16AM0.72m | 4:13PM0.60m | ||||||||
 |  |  | | |  | | |  | | | | | | | | | | | | |
 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — |
 | 5:47 | — | — | 5:46 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:44 | — |
mm | 5 | 10 | 1 | 1 | 5 | — | 9 | 6 | — | 13 | 15 | — | 4 | 2 | — | 6 | 8 | — | 4 | 7 |
Temp °C | 29 | 28 | 28 | 28 | 27 | 29 | 29 | 27 | 29 | 28 | 26 | 28 | 28 | 27 | 29 | 28 | 27 | 28 | 28 | 28 |
Feels °C | 32 | 32 | 31 | 31 | 31 | 32 | 32 | 32 | 33 | 31 | 29 | 33 | 32 | 32 | 33 | 31 | 32 | 33 | 32 | 33 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 12 | SSW 6 | SSW 6 | SW 13 | SSW 6 | SW 16 | SSW 12 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 |
| kJ | 342 | 282 | 199 | 216 | 53 | 53 | 170 | 47 | 248 | 203 | 795 | 962 | 1282 | 1225 | 1317 | 1193 | 788 | 676 | 453 | 447 |
Swell 2 Height (m) Direction Period (s) | S 6 | S 7 | S 6 | SSW 6 | SW 12 | SSW 13 | SW 17 | SW 12 | SSW 12 | SW 19 | SSW 7 | S 8 | SSW 7 | W 8 | W 9 | W 9 | S 6 | SSW 6 | SSW 6 | SSW 6 |
| kJ | 18 | 33 | 41 | 53 | 212 | 212 | 222 | 152 | 94 | 504 | 43 | 41 | 43 | 12 | 15 | 14 | 41 | 41 | 40 | 55 |
Swell 3 Height (m) Direction Period (s) | SW 20 | W 9 | SSW 12 | SW 18 | SW 18 | SW 18 | W 10 | SW 16 | S 7 | SW 15 | SSW 12 | SW 11 | W 8 | S 11 | S 12 | SW 21 | W 9 | W 8 | SSW 15 | WNW 11 |
| kJ | 15 | 14 | 56 | 113 | 112 | 192 | 17 | 163 | 32 | 134 | 93 | 60 | 13 | 22 | 11 | 18 | 14 | 5 | 85 | 11 |
Wind waves Height (m) Direction Period (s) | WSW 6 | — | — | — | — | — | SSW 6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | — | — | — | — | — | 43 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 75 | 0 | 0 | 187 | 0 | 6 | 75 | 0 | 0 | 75 | 0 | 0 | 20 | 0 | 0 | 54 | 6 | 0 | 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.
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