
Surf Forecasts:
Jaco Beach surf forecast from 17 Jul 2026:
- Best quality surf: Monday 20 Jul, 6AM (local time) - 3ft (0.9m), 13s period, SSW swell with cross-offshore winds.
- Most powerful swell: Friday 24 Jul, 9AM (local time) - 2ft (0.6m), 24s period, SW swell with 444 kJ wave energy.
- Next surfable swell (1★+): Friday 17 Jul, 9PM (local time) - 3ft (0.9m), 13s 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 Friday (Jul 17) at 9PM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 0.5m and 11s. 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 0.6m 24s and forecast to arrive on Friday (Jul 24) at 9AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Tuesday (Jul 21) at 12PM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 17th Jul) | 3ft (0.9m) 13s |
| Best Surf | 6AM (Mon 20th Jul) | 3ft (0.9m) 13s |
| Most Powerful | 9AM (Fri 24th Jul) | 2ft (0.6m) 24s |
Table - best surf conditions forecast for Jaco Beach over the next 16 days.
The Lowdown
Hey, it's Rusty. Let's talk about Jaco Beach. The water's sitting at about 86°F, a touch warmer than usual for this time of year – about 3°F above average, so it's real nice. Crowds can pop up sometimes, especially when it's clean, but there's plenty of waves to go around for a beginner-friendly spot like this.
The next couple of days are pretty marginal – Friday and Saturday have small, weak swell and light cross-shore winds, not really worth paddling out for. But hang tight, because Sunday morning (July 19) we get a little glassy window with a 3ft S swell, 14-second period, and the energy's moderate (440). That's a decent start.
Now, the real standout hits Monday July 20. Early morning it's dead calm, glassy as a mirror, with a 2ft SW groundswell at 16 seconds – that's clean, long-period juice. The combined energy is moderate (514), and the conditions are perfect for a long, smooth session. That's easily the best bet in the first week. Tuesday and Wednesday also have clean mornings with offshore or glassy winds, but the swell's a touch smaller.
Later in the week, Thursday July 23 morning sees a bump in size to 4ft SSW, but the period drops to 8 seconds – short-period windswell, not as juicy. Still, with cross-offshore wind it's clean, so worth a look if you're keen.
Then Friday July 24 morning – very clean, offshore wind, and a 2ft SW swell with a crazy long 24-second period. That's a very long-period groundswell, and the energy is moderate (611). It'll be lined up and glassy, but at a point break or reef it'd be magic; on a beach break it might straighten out a bit. Still, a beautiful morning.
The second week brings more promise. Monday July 27 morning is the big one: glassy, calm, 4ft SW swell with 17-second period. The combined energy jumps to 1157 – strong wave energy. The forecast says excellent conditions for experienced surfers, and honestly, it's a real treat for anyone who can handle a bit of power. That's your other standout, though it's more than a week out so keep an eye on it.
Tuesday and Wednesday mornings also have clean glassy conditions and 4–4ft SW swell, but the wind swings a bit. Towards the end of the month, the swell settles back to 3–3ft, with glassy starts and clean afternoons. Overall, it's a solid run for Jaco – nothing huge, but plenty of clean, rideable waves if you pick the right windows.
Stay stoked,
Rusty
Short Range ForecastLight rain (total 9mm), mostly falling on Sun night. Warm (max 30°C on Fri morning, min 26°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 25mm), heaviest during Wed afternoon. Warm (max 28°C on Mon morning, min 24°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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) | SSW 12 | SSW 13 | SSW 13 | S 14 | SSW 12 | SSW 13 | S 14 | S 12 | SSW 13 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | S 12 | SW 13 | SW 12 | S 7 | SSW 8 | SW 26 | SSW 8 |
Wave Graph | |||||||||||||||||||||
161 | 372 | 331 | 206 | 206 | 361 | 253 | 304 | 269 | 257 | 306 | 266 | 301 | 203 | 279 | 171 | 96 | 113 | 163 | 191 | 170 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | glassy | cross | cross-on | glassy | glassy | cross-on | glassy | glassy | glassy | cross-off | glassy | off | glassy | off | glassy | glassy | cross-off | cross | glassy |
High Tide | 5:02PM2.84m | 5:35AM2.89m | 5:50PM2.72m | 6:21AM2.83m | 6:38PM2.56m | 7:07AM2.71m | 7:27PM2.39m | 7:54AM2.57m | 8:17PM2.22m | 8:42AM2.42m | 9:12PM2.07m | 9:35AM2.29m | 10:13PM1.97m | ||||||||
Low Tide | 10:55AM0.18m | 11:17PM0.00m | 11:46AM0.23m | 00:02AM0.12m | 12:35PM0.33m | 00:48AM0.28m | 1:25PM0.44m | 1:34AM0.47m | 2:15PM0.56m | 2:22AM0.64m | 3:09PM0.67m | 3:14AM0.79m | 4:08PM0.74m | ||||||||
5:24 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | |
— | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | |
mm | — | 2 | 1 | — | 1 | 1 | — | — | 4 | — | 2 | — | 1 | 3 | 1 | 2 | 6 | 10 | 4 | 6 | 5 |
Temp °C | 30 | 30 | 28 | 29 | 29 | 28 | 29 | 29 | 27 | 28 | 27 | 27 | 28 | 27 | 26 | 27 | 27 | 25 | 25 | 25 | 25 |
Feels °C | 34 | 33 | 33 | 32 | 32 | 34 | 32 | 31 | 32 | 32 | 32 | 31 | 32 | 31 | 29 | 31 | 32 | 29 | 29 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 13 | S 14 | S 12 | SSW 13 | SSW 12 | SSW 12 | SSW 7 | SW 15 | SW 14 | S 12 | SSW 7 | S 7 | S 7 | SSW 8 | SSW 8 | SSW 8 |
161 | 372 | 331 | 167 | 206 | 361 | 253 | 304 | 269 | 205 | 195 | 63 | 301 | 203 | 279 | 52 | 68 | 113 | 163 | 191 | 170 | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SW 15 | S 6 | S 14 | S 14 | SSW 7 | SSW 7 | SW 18 | SSW 6 | SSW 6 | SSW 6 | SW 15 | S 12 | S 12 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 18 |
160 | 55 | 21 | 206 | 198 | 58 | 45 | 152 | 66 | 52 | 48 | 266 | 130 | 132 | 212 | 171 | 96 | 92 | 37 | 55 | 49 | |
Swell 3 Height (m) Direction Period (s) | SW 15 | SSW 20 | S 16 | S 6 | S 6 | S 16 | SSW 12 | W 15 | SW 18 | SW 16 | SW 16 | S 12 | S 7 | S 6 | W 10 | S 11 | SSW 11 | SSW 11 | S 10 | SW 26 | SW 13 |
55 | 39 | 46 | 19 | 20 | 46 | 142 | 4 | 109 | 257 | 306 | 184 | 45 | 39 | 2 | 63 | 39 | 38 | 8 | 171 | 27 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 6 | — | — | — | — | — | E 3 | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | 66 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 36 | 0 | 1 | 95 | 0 | 0 | 95 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 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.










