
Surf Forecasts:
Jaco Beach surf forecast from 18 Jul 2026:
- Best quality surf: Saturday 25 Jul, 12AM (local time) - 3ft (0.9m), 21s period, SSW swell with offshore winds.
- Most powerful swell: Saturday 25 Jul, 3AM (local time) - 3.5ft (1.0m), 21s period, SW swell with 898 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 6AM (local time) - 3.5ft (1.0m), 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 (Jul 19) at 6AM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 0.9m and 6s. 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 1.0m 21s and forecast to arrive on Saturday (Jul 25) at 3AM. Winds are predicted to be offshore at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 19th Jul) | 3.5ft (1.0m) 14s |
| Best Surf | 12AM (Sat 25th Jul) | 3ft (0.9m) 21s |
| Most Powerful | 3AM (Sat 25th Jul) | 3.5ft (1.0m) 21s |
Table - best surf conditions forecast for Jaco Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cooking for Jaco Beach over the next couple of weeks.
Right off the bat, we’re looking at a pretty small, average wave window. The first few days are a bit of a mixed bag with very marginal surf, but things do build towards a couple of standout windows, especially for the more experienced crew. The water is sitting at a warm 86°F, which is a touch warmer than normal for this time of year, so you’ll be in boardies or a light spring suit, no problem.
We’re starting Saturday morning, 18 July, with a small 2 ft swell from the S, but it’s a bit choppy with a light cross-onshore wind. The combined energy is moderate (392), but it’s not really tempting anyone to paddle out. Saturday afternoon just bumps up to 3 ft from the SSW, but the onshore wind keeps it messy. The real windows start to open up on Sunday morning, 19 July. We’ve got glassy conditions with a light N wind, and a clean 3 ft S swell. The energy is moderate (440), and with those clean conditions, it’s a good call for a longboard or a funboard. Sunday afternoon gets a bit dicey with a risk of storms and a cross-onshore breeze, so stick to the morning.
Monday, 20 July, is a bit of a write-off with the wind clocking around, and Tuesday, 21 July, actually looks sweet. Both Tuesday morning and afternoon have glassy conditions with a 3 ft SW swell. The combined energy is moderate (470-482), and the glassy wind will make for some clean, workable waves. Not huge, but fun. Wednesday, 22 July, is also a solid option with a clean, cross-offshore wind in the morning and glassy conditions in the afternoon. The swell is small, 2 ft to 2 ft, but it’s clean, so the logs will be happy.
Now, here’s where it gets interesting. Friday, 24 July, we see a proper spike in the swell period hitting 24 seconds, which is a very long period groundswell. The morning is a bit messy, but the afternoon brings a gentle offshore wind from the E and a 2 ft SW swell. The energy is strong (501), and that long period will push through the beach break, but it’s a small wave, so it’s more of a session for the experts who can read the longer lulls and the longer walls. If you’re a beginner, 2 ft with a 24-second period is going to be very slow and hard to catch.
The best of the best, the true standout, is without a doubt Monday, 27 July. The morning session is absolutely firing. We’ve got a 3 ft SW swell with a 19-second period, glassy conditions, and the combined energy is very strong at 1188. This is excellent surf for experienced surfers. The waves will have some real punch and shape, and the offshore glass will keep them clean. This is the one to circle on the calendar. Tuesday, 28 July, is also a top-tier option, with a 4 ft SW swell and a clean cross-offshore wind. The energy is massive (1287), and it’s another one for the experienced crew. These waves are getting into the 5 ft range, so it’s stepping up in size.
The following week, into the start of August, we see a bit of a drop back down, but there’s a promising window on Sunday morning, 2 August. That morning has a 2 ft SSW swell with a long 20-second period, glassy conditions, and strong energy (514). It’s a good call for a quiet, clean session. The crowds at Jaco Beach can be around sometimes, so the early mornings on the clean days are your best bet for a quieter lineup.
If you’re a beginner, stick to the smaller, glassy days like Sunday 19 July or Tuesday 21 July. The bigger swells (over 5 ft) on 28 July and 29 July are better left for the more experienced. Overall, it’s a slow start, but the last week of July has some real quality on offer.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Sun night. Warm (max 29°C on Sat morning, min 26°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 32mm), heaviest during Wed night. Warm (max 28°C on Tue morning, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
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) | S 14 | SSW 12 | SSW 13 | S 14 | S 12 | SSW 13 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SSW 7 | SSW 7 | SW 8 | SW 24 | SW 24 | SSW 21 |
Wave Graph | |||||||||||||||||||||
206 | 206 | 361 | 253 | 304 | 269 | 257 | 306 | 313 | 301 | 248 | 208 | 171 | 124 | 92 | 93 | 102 | 201 | 444 | 271 | 799 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-on | glassy | glassy | cross-on | cross-off | glassy | glassy | off | cross-off | cross-off | glassy | cross | glassy | cross | cross | cross-off | off |
High Tide | 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 | 10:33AM2.21m | 11:18PM1.93m | ||||||||
Low Tide | 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 | 4:12AM0.88m | 5:09PM0.77m | ||||||||
5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | |
— | 6:02 | — | — | 6:02 | — | — | 6:02 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | |
mm | — | 2 | 1 | — | — | 7 | 4 | — | — | — | 2 | 6 | 3 | 6 | 11 | — | 3 | 1 | — | 5 | 12 |
Temp °C | 29 | 29 | 28 | 28 | 29 | 28 | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 26 | 27 | 27 | 26 | 28 | 28 | 27 |
Feels °C | 33 | 32 | 32 | 32 | 31 | 33 | 32 | 30 | 30 | 33 | 31 | 31 | 31 | 31 | 30 | 29 | 32 | 30 | 31 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 13 | SSW 6 | S 12 | SSW 13 | SSW 7 | SSW 12 | SSW 7 | SW 15 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SW 8 | SW 8 | SW 8 | SSW 21 |
167 | 206 | 361 | 57 | 304 | 269 | 82 | 195 | 99 | 301 | 74 | 67 | 67 | 63 | 68 | 93 | 102 | 201 | 154 | 227 | 799 | |
Swell 2 Height (m) Direction Period (s) | S 14 | S 14 | SSW 6 | S 14 | SSW 6 | SSW 6 | SSW 12 | SW 16 | SW 15 | S 12 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 8 | SW 13 | S 7 | SW 24 | WSW 8 |
206 | 198 | 44 | 253 | 60 | 64 | 205 | 306 | 313 | 130 | 248 | 208 | 171 | 124 | 92 | 51 | 53 | 25 | 59 | 271 | 117 | |
Swell 3 Height (m) Direction Period (s) | S 6 | S 6 | S 16 | SSW 12 | SW 18 | SW 18 | SW 16 | W 19 | SSW 12 | S 7 | S 12 | S 12 | S 11 | SSW 11 | SSW 11 | SSW 10 | SW 12 | SW 18 | SW 24 | SSW 12 | SW 16 |
19 | 19 | 46 | 142 | 152 | 109 | 257 | 7 | 192 | 32 | 96 | 99 | 63 | 39 | 39 | 21 | 55 | 79 | 444 | 29 | 65 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 7 | — | — | — | — | — | — | — | NW 3 | — | WNW 3 | — | — | SSE 9 |
— | — | — | — | — | — | — | 139 | — | — | — | — | — | — | — | 1 | — | 5 | — | — | 129 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 45 | 0 | 0 | 151 | 0 | 16 | 45 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 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.










