Surf Forecasts:
The Tree surf forecast from 10 Aug 2026:
- Best quality surf: Friday 14 Aug, 6PM (local time) - 3ft (0.9m), 18s period, SW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 12AM (local time) - 4.5ft (1.3m), 17s period, SW swell with 951 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 6AM (local time) - 2.5ft (0.7m), 13s 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 Monday (Aug 10) at 6AM. The primary swell is predicted to be 0.7m and 13s period with a secondary swell of 0.4m and 10s. Another secondary swell of 0.2m and 5s is also forecast. 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 1.3m 17s and forecast to arrive on Saturday (Aug 15) at 12AM. 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 (Mon 10th Aug) | 2.5ft (0.7m) 13s |
| Best Surf | 6PM (Fri 14th Aug) | 3ft (0.9m) 18s |
| Most Powerful | 12AM (Sat 15th Aug) | 4.5ft (1.3m) 17s |
Table - best surf conditions forecast for The Tree over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it.
We’ve got a solid run of surf on the cards at The Tree, starting right from the get-go. This spot is an exposed SW-facing reef or point setup, and it’s picking up a consistent run of long-period groundswell. The water temp is sitting about average for this time of year, so nothing weird there.
The action kicks off Monday morning, 10th of August. The swell is small at 2ft from the SW, but with a 13-second period, the energy is moderate (232). The wind is glassy, dead calm, and it’s going to be clean as a whistle. It’s a gentle start, but the quality is there.
Things build nicely into Tuesday, 11th. The morning has 2ft SW swell, period bumping to 14 seconds, and the energy is climbing (346). The wind is cross-off from the NNW, keeping the surface clean. Come Wednesday morning, 12th, it’s glass again with 2ft SW swell at 16 seconds (373 energy). The consistency is there, and the conditions are pristine.
Thursday morning, 13th, is another glassy one, 2ft SW and 15-second period (303 energy). It’s still small but fun.
Now, the standout window is Friday, 14th, through Saturday, 15th. Friday morning brings 3ft SW swell with a long 18-second period, and the energy jumps to 708 – that’s strong. The wind is glassy from the NW. This is a top-quality session coming up.
Saturday, 15th, is the best on offer. The morning sees 4ft SW swell, 16-second period, and the energy is very strong at 1086. The wind is cross-off from the N, giving us clean, well-shaped waves. This is excellent for experienced surfers – the size is getting up there, and the long period means it’ll be powerful and walling up. It’s not a beginner wave at this size. Crowds are possible here, so be ready to share.
Sunday, 16th, drops a bit. The morning has 4ft SW swell at 15 seconds, but the wind goes cross-shore, and conditions are marginal.
After that, the following week stays active. Tuesday, 18th, has a fun afternoon session with 4ft SSW swell, but the period is short at 8 seconds, so it’ll be a bit lumpy. Wednesday, 19th, sees a nice clean morning with 3ft SW, 15-second period, and cross-off wind from the ESE.
Looking further out, Sunday, 23rd, is a real eye-catcher. The morning has 3ft SW swell, a 19-second period, and the energy is strong at 739. The wind is cross-off from the N, so it’ll be clean. That’s a promising long-range call, but less certain this far out.
Overall, the surf is consistent and mostly clean. The Tree is a spot that rewards patience, and the long-period SW groundswell is going to be the main driver. The best morning to lock in is Saturday, 15th, with Friday, 14th, a close second.
Rusty, signing off.
Short Range ForecastLight rain (total 6mm), mostly falling on Wed afternoon. Warm (max 30°C on Mon afternoon, min 26°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 28mm), heaviest during Wed night. Warm (max 29°C on Wed night, min 26°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||
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 | SSW 15 | SW 14 | SW 18 | SW 13 | SW 16 | SW 16 | SW 16 | SW 15 | SW 18 | SW 19 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 175 | 136 | 212 | 150 | 203 | 319 | 144 | 211 | 206 | 155 | 137 | 111 | 369 | 623 | 595 | 951 | 909 | 803 | 773 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | glassy | cross-off | on | glassy | glassy | cross-on | glassy | glassy | on | glassy | glassy | cross-on | cross-off | cross-off | cross-on | glassy |
High Tide | 12:16PM2.56m | 1:02AM2.39m | 1:20PM2.67m | 2:00AM2.59m | 2:17PM2.77m | 2:52AM2.77m | 3:08PM2.84m | 3:40AM2.89m | 3:56PM2.86m | 4:24AM2.95m | 4:41PM2.81m | ||||||||
Low Tide | 5:56AM0.61m | 6:46PM0.36m | 7:05AM0.49m | 7:44PM0.21m | 8:05AM0.35m | 8:36PM0.09m | 8:59AM0.22m | 9:23PM0.01m | 9:48AM0.15m | 10:08PM0.00m | 10:35AM0.13m | 10:51PM0.06m | |||||||
 |  |  |  | |  | | | | | | | | | | | | | | |
 | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — |
 | — | — | 5:57 | — | — | 5:57 | — | — | 5:57 | — | — | 5:55 | — | — | 5:55 | — | — | 5:55 | — |
mm | 1 | — | — | — | — | 1 | — | — | 4 | 12 | — | 2 | 3 | — | 2 | 2 | — | 7 | 21 |
Temp °C | 28 | 29 | 30 | 28 | 29 | 30 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 26 |
Feels °C | 33 | 31 | 32 | 32 | 32 | 33 | 32 | 34 | 32 | 33 | 32 | 32 | 33 | 32 | 33 | 32 | 32 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SSW 12 | SW 14 | SW 14 | SW 13 | S 9 | S 8 | S 8 | S 7 | S 8 | S 8 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 |
| kJ | 175 | 136 | 212 | 101 | 203 | 241 | 144 | 56 | 69 | 76 | 70 | 78 | 74 | 623 | 595 | 951 | 909 | 803 | 773 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | S 9 | SSW 15 | S 9 | SW 18 | S 9 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 19 | S 7 | S 12 | S 12 | S 12 | S 12 | S 12 |
| kJ | 30 | 29 | 41 | 150 | 55 | 319 | 56 | 211 | 206 | 155 | 137 | 102 | 369 | 48 | 216 | 180 | 177 | 177 | 213 |
Swell 3 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 20 | S 9 | SW 19 | S 9 | SW 18 | SW 13 | SW 13 | S 15 | S 14 | SW 18 | SW 16 | S 11 | SW 14 | — | — | — | SSW 12 |
| kJ | 93 | 66 | 62 | 39 | 88 | 53 | 109 | 106 | 82 | 110 | 96 | 111 | 159 | 37 | 206 | — | — | — | 27 |
Wind waves Height (m) Direction Period (s) | W 5 | W 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 39 | 0 | 0 | 180 | 0 | 0 | 155 | 0 | 0 | 155 | 0 | 0 | 31 | 0 | 0 | 39 | 0 |
Best forecast wave conditions in Golfo de Nicoya | |||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||
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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.
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