Surf Forecasts:
The Tree surf forecast from 6 Sep 2026:
- Best quality surf: Sunday 6 Sep, 9PM (local time) - 3.5ft (1.1m), 14s period, SW swell with glassy winds.
- Most powerful swell: Thursday 10 Sep, 3AM (local time) - 4ft (1.2m), 18s period, SW swell with 871 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 9PM (local time) - 3.5ft (1.1m), 14s 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 (Sep 06) at 9PM. The primary swell is predicted to be 1.1m and 14s period with a secondary swell of 1.1m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at The Tree in the next 16 days are 1.2m 18s and forecast to arrive on Thursday (Sep 10) at 3AM. 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+) | 9PM (Sun 6th Sep) | 3.5ft (1.1m) 14s |
| Best Surf | 9PM (Sun 6th Sep) | 3.5ft (1.1m) 14s |
| Most Powerful | 3AM (Thu 10th Sep) | 4ft (1.2m) 18s |
Table - best surf conditions forecast for The Tree over the next 16 days.
The Lowdown
Alright, grab your wettie, it’s Rusty here with the lowdown on The Tree.
We’ve got a solid run of groundswell ahead, but there’s a few clear winners and a bit of a waiting game in between. The water is sitting at 86°, which is a touch warmer than usual for this time of year.
The first real standout is Sunday, September 7th morning. You’re looking at a 3ft SW groundswell, 14-second period, and the wind is totally glassy. The combined energy is moderate (534). The swell is fairly consistent, but the clean, offshore light winds will have the advanced crew buzzing. The Tree is open to this SW direction, so it’s soaking it up.
The best of the whole run, though, is Thursday, September 10th morning. The swell pushes up to 4ft from the SW, with a 17-second period. The combined energy hits 931 – that’s solid, moderate-to-strong juice. The wind is dead calm, glassy. It’s an advanced wave, so that combination will be absolute perfection. The Tree can get crowded sometimes, so you’ll want to be early.
Friday, September 11th morning is nearly as good – 4ft SW swell, flat calm, glassy. If you miss Thursday, this is the second-best slot.
Things get smaller and a bit more inconsistent after that, with cleaner but less powerful days. The next real highlight is Tuesday, September 15th morning. A 3ft SW groundswell, but with a very long 18-second period, flat calm winds, and moderate combined energy (503). It’ll be clean and have some real push.
Wednesday, September 16th morning is also a good call – 3ft SW swell, 16-second period, glassy, with combined energy of 524.
Sunday, September 20th and Monday, September 21st mornings both show 3ft SW swell with 18 and 19-second periods, glassy, and combined energy around 508. A long way out, but they look real promising. The Tree loves that long-period groundswell, giving you those drawn-out, workable walls.
So, the one to circle: Thursday, September 10th morning. Best size, best energy, best wind. Don’t sleep on it.
Rusty.
Short Range ForecastHeavy rain (total 39mm), heaviest during Sun night. Warm (max 28°C on Sun morning, min 26°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 23mm), heaviest during Wed afternoon. Warm (max 29°C on Thu afternoon, min 26°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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) | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 676 | 453 | 447 | 363 | 299 | 245 | 249 | 232 | 306 | 371 | 310 | 781 | 861 | 737 | 635 | 546 | 427 | 346 | 346 | 245 | 176 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | glassy | glassy | cross-off | cross-off | cross-on | glassy | glassy | on | glassy | glassy | on | glassy | glassy | cross-on | cross-off | glassy | cross-on | cross-off |
High Tide | 9:39AM2.37m | 10:31PM2.15m | 10:58AM2.38m | 11:47PM2.27m | 12:10PM2.45m | 00:52AM2.46m | 1:12PM2.57m | 1:46AM2.65m | 2:05PM2.68m | 2:33AM2.81m | 2:52PM2.75m | 3:16AM2.91m | 3:36PM2.77m | ||||||||
Low Tide | 4:13PM0.60m | 4:37AM0.73m | 5:28PM0.54m | 5:54AM0.64m | 6:33PM0.42m | 7:00AM0.49m | 7:28PM0.29m | 7:55AM0.33m | 8:17PM0.18m | 8:44AM0.21m | 9:01PM0.12m | 9:28AM0.13m | 9:42PM0.12m | ||||||||
 |  |  | | |  |  | |  | | | | | |  | | | | | | | |
 | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — |
 | — | 5:44 | — | — | 5:43 | — | — | 5:43 | — | — | 5:42 | — | — | 5:42 | — | — | 5:40 | — | — | 5:39 | — |
mm | — | 4 | 26 | 3 | 2 | — | — | 2 | 2 | 1 | 8 | 2 | — | 3 | — | — | 5 | 4 | — | 2 | 4 |
Temp °C | 28 | 28 | 27 | 27 | 27 | 26 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 27 |
Feels °C | 31 | 32 | 32 | 31 | 32 | 31 | 31 | 31 | 33 | 33 | 31 | 32 | 32 | 32 | 33 | 32 | 32 | 32 | 32 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 16 | SW 16 | SW 16 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | S 8 |
| kJ | 676 | 453 | 447 | 363 | 299 | 245 | 202 | 172 | 306 | 371 | 310 | 781 | 861 | 737 | 635 | 546 | 427 | 346 | 346 | 245 | 64 |
Swell 2 Height (m) Direction Period (s) | SSW 6 | SSW 7 | SSW 7 | SSW 6 | S 6 | S 6 | SW 18 | SW 17 | SW 11 | SW 12 | SW 13 | WSW 6 | S 10 | S 10 | S 10 | S 6 | S 6 | S 6 | S 6 | S 6 | SW 13 |
| kJ | 23 | 93 | 88 | 74 | 29 | 20 | 249 | 232 | 64 | 68 | 80 | 8 | 52 | 49 | 70 | 20 | 39 | 39 | 27 | 35 | 176 |
Swell 3 Height (m) Direction Period (s) | S 7 | SSW 15 | W 10 | SW 20 | WSW 6 | WSW 6 | S 6 | S 6 | WSW 6 | W 10 | SW 19 | WNW 10 | W 10 | W 10 | W 10 | S 11 | SSW 19 | W 10 | W 10 | SW 18 | SSW 21 |
| kJ | 17 | 85 | 8 | 97 | 34 | 20 | 19 | 12 | 7 | 34 | 133 | 10 | 18 | 8 | 8 | 35 | 37 | 8 | 2 | 80 | 44 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WSW 7 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 9 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 31 | 5 | 0 | 0 | 0 | 0 | 39 | 0 | 0 | 159 | 0 | 0 | 168 | 0 | 0 | 71 | 0 | 0 | 4 | 0 |
Best forecast wave conditions in Golfo de Nicoya | |||||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our The Tree surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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