Surf Forecasts:
The Tree surf forecast from 16 Aug 2026:
- Best quality surf: Sunday 16 Aug, 6AM (local time) - 4ft (1.2m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 16 Aug, 6AM (local time) - 4ft (1.2m), 15s period, SW swell with 614 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 6AM (local time) - 4ft (1.2m), 15s period with SW swell.
Best Forecast Surf Conditions for The Tree this week:
The surf forecast for The Tree over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 16) at 6AM. The primary swell is predicted to be 1.2m and 15s 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 The Tree in the next 16 days are 1.2m 15s and forecast to arrive on Sunday (Aug 16) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 16th Aug) | 4ft (1.2m) 15s |
| Best Surf | 6AM (Sun 16th Aug) | 4ft (1.2m) 15s |
| Most Powerful | 6AM (Sun 16th Aug) | 4ft (1.2m) 15s |
Table - best surf conditions forecast for The Tree over the next 16 days.
The Lowdown
Alright, let’s talk in feet and miles per hour now.
Only one spot in the mix worth talking about: The Tree. It’s an advanced wave, breaks fairly consistently on a SW swell. It’s open to the ocean, picks up that southwest groundswell proper. Expect a few other surfers around, but it’s not packed.
Water temp is about normal for the season, nothing unusual.
Starting Sunday the 16th, we’ve got a glassy morning. Some clouds, a light NW wind at 3 mph, and the swell is 4ft from the SW. Period is 15 seconds – that’s long-period groundswell, so the waves have real shape and power, but there’ll be longer waits between sets. The combined energy is 667 (moderate), and the whole setup says "very good surf." This is the best window in the whole 16 days. Clean, lined up, powerful.
Sunday afternoon turns risky with thunderstorms and a cross-on wind that’ll mess up the surface, so get it done early.
Monday the 17th is another strong morning: calm wind, 3ft of SW swell, 14-second period, energy at 561 (moderate). Another top session if you’re keen.
From Tuesday the 18th through the rest of the week, the swell drops to around 2ft to 3ft. Mornings stay glassy, so you can still grab clean little waves. Not pumping, but not terrible.
The weekend of the 22nd and 23rd sees a pulse up to 3ft from the south, but period drops to 10 seconds – less grunt. Still, glassy mornings mean you can have fun.
Then from the 25th to the 29th, it gets really small – 2ft and below, with poor afternoons. A stretch of several days with hardly anything worth paddling out for. The 27th has a 18-second period but only 1ft of swell – all period, no push.
Finally, Sunday the 30th of August offers a comeback: glassy morning, 3ft SW swell at 14 seconds, energy at 521 (moderate). It’s over a week away, so keep an eye on it, but it looks promising.
The 31st Monday morning is still rideable but the wind turns cross-shore, so not as clean.
Bottom line: Sunday August 16th morning is your standout – glassy, 4ft of long-period SW groundswell at The Tree. Monday August 17th morning is a close second. After that, chase the early glass, and don’t expect much after the 25th for a few days.
Rusty.
Short Range ForecastHeavy rain (total 31mm), heaviest during Sat night. Warm (max 28°C on Tue morning, min 24°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 30mm), heaviest during Fri afternoon. Warm (max 29°C on Fri morning, min 25°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SSW 9 | SSW 9 | SSW 11 | SSW 11 | SSW 11 | SSW 11 |
Wave Graph | |||||||||||||||||||
773 | 535 | 528 | 466 | 371 | 371 | 313 | 171 | 151 | 406 | 255 | 251 | 160 | 144 | 156 | 240 | 314 | 303 | 292 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | glassy | glassy | cross-on | cross | glassy | cross-on | glassy | glassy | glassy | cross-off | glassy | on | glassy | glassy | cross-on | cross-off |
High Tide | 5:06AM2.93m | 5:24PM2.70m | 5:48AM2.84m | 6:07PM2.56m | 6:28AM2.70m | 6:50PM2.38m | 7:10AM2.53m | 7:35PM2.20m | 7:55AM2.36m | 8:25PM2.04m | 8:46AM2.21m | 9:26PM1.91m | |||||||
Low Tide | 10:51PM0.06m | 11:20AM0.17m | 11:32PM0.17m | 12:03PM0.27m | 00:13AM0.32m | 12:46PM0.40m | 00:54AM0.50m | 1:31PM0.54m | 1:38AM0.67m | 2:21PM0.69m | 2:27AM0.83m | 3:19PM0.80m | |||||||
— | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | |
— | — | 5:54 | — | — | 5:54 | — | — | 5:53 | — | — | 5:53 | — | — | 5:52 | — | — | 5:52 | — | |
mm | 10 | — | 3 | 5 | — | 5 | 3 | — | 5 | 10 | 1 | 3 | 3 | — | 4 | 3 | — | 6 | 3 |
Temp °C | 26 | 27 | 26 | 25 | 27 | 27 | 26 | 28 | 28 | 27 | 28 | 27 | 26 | 28 | 28 | 27 | 29 | 29 | 28 |
Feels °C | 30 | 30 | 30 | 30 | 30 | 31 | 29 | 33 | 31 | 31 | 32 | 31 | 30 | 33 | 32 | 32 | 32 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 14 | SW 14 | SSW 8 | S 8 | S 7 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 9 | SSW 9 | SSW 9 | SSW 11 | SSW 11 | SSW 11 | SSW 11 |
773 | 535 | 528 | 466 | 169 | 138 | 109 | 151 | 147 | 120 | 109 | 112 | 137 | 129 | 156 | 240 | 314 | 303 | 292 | |
Swell 2 Height (m) Direction Period (s) | SSW 11 | SSW 7 | SSW 7 | SSW 7 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 17 | SW 15 | SSW 16 |
217 | 73 | 77 | 102 | 371 | 371 | 313 | 171 | 138 | 406 | 255 | 251 | 160 | 144 | 84 | 82 | 47 | 35 | 103 | |
Swell 3 Height (m) Direction Period (s) | S 12 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | SW 16 | SW 16 | S 12 | S 11 | W 8 | SW 21 | S 13 | S 11 | SW 19 | SW 18 | SW 22 | SW 21 |
24 | 59 | 37 | 37 | 21 | 19 | 8 | 163 | 151 | 11 | 2 | 1 | 17 | 13 | 39 | 14 | 48 | 18 | 18 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 2 | 0 | 0 | 5 | 4 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 0 | 39 | 0 |
Best forecast wave conditions in Golfo de Nicoya | |||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the The Tree Surf forecast
The above surf forecast table for The Tree provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Tree can be found by selecting the local surf guide option on the grey menu. Our The Tree 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 (The Tree) 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 The Tree 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 The Tree, camping, hotels and holiday cottages in Golfo de Nicoya, consider staying in Tejar which is 45 km (28 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, Esparza, Chacarita and Quepos.











