Surf Forecasts:
The Tree surf forecast from 13 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 6PM (local time) - 2.5ft (0.8m), 17s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 20 Sep, 9AM (local time) - 2.5ft (0.8m), 19s period, SW swell with 446 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 6PM (local time) - 2ft (0.6m), 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 Sunday (Sep 13) at 6PM. The primary swell is predicted to be 0.4m and 19s period with a secondary swell of 0.7m and 9s. Another secondary swell of 0.6m and 13s is also forecast. 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 0.8m 19s and forecast to arrive on Sunday (Sep 20) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sun 13th Sep) | 2ft (0.6m) 13s |
| Best Surf | 6PM (Tue 15th Sep) | 2.5ft (0.8m) 17s |
| Most Powerful | 9AM (Sun 20th Sep) | 2.5ft (0.8m) 19s |
Table - best surf conditions forecast for The Tree over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming down the line for The Tree. We’ve got a bit of a mixed bag over the next couple of weeks, but there are a few real gems to get excited about.
The water is sitting at 86°, which is a touch warmer than normal for this time of year – you won’t need a thick suit, that’s for sure. The surf starts off small but with some lovely quality early on, especially Sunday the 13th. We’ve got a clean 2ft southwest groundswell rolling in with a very long 13-second period and glassy conditions under light northwesterly airs. The energy is moderate (309) and the wave comment says "expect good surf conditions". It’s an advanced break and fairly consistent, so expect a few others in the water – crowds are possible.
Monday morning the 14th is another glassy winner with 1ft of southwest swell but a very long 19-second period. The energy is moderate (269). It’s clean but small.
Now, Wednesday the 16th is the standout of the first week. The morning brings 3ft of southwest swell with a 16-second period, absolutely no wind – dead glass – and the combined energy is strong (513). The wave comment says "expect very good surf conditions". This is the pick of the bunch early on. If you can get out there, do it.
After that, there’s a bit of a lull in quality through the end of the week, with smaller swells and onshore winds creeping in during the afternoons.
Looking ahead to the following week, Saturday the 26th is the real headline. The morning sees 6ft of southwest swell, but the period drops to a short 7 seconds. The energy is very strong (607), and with a cross-off wind it stays clean. This is a bigger, punchier wave – solid for advanced surfers but too much for beginners. By the afternoon, the wind goes glassy and the swell drops a touch to 5ft, but it’s still a clean, powerful option. The wave comment says "expect very good surf conditions" for both sessions. That Saturday is the top call for the whole forecast.
Sunday the 27th morning is still decent with 3ft and a 12-second period under glassy skies – a good way to round out the weekend.
Overall, the best bets are Wednesday morning the 16th for clean, lined-up groundswell, and Saturday the 26th for size and power. Get on it.
Rusty.
Short Range ForecastHeavy rain (total 26mm), heaviest during Tue afternoon. Warm (max 29°C on Sun morning, min 26°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Wed afternoon. Warm (max 29°C on Thu morning, min 26°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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 13 | SW 13 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 14 | SW 14 | SW 14 | SW 14 | SW 20 | SW 20 | SW 19 | SW 19 | SW 21 | SW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 140 | 131 | 234 | 127 | 192 | 252 | 192 | 358 | 310 | 371 | 291 | 251 | 248 | 297 | 238 | 145 | 138 | 184 | 181 | 220 | 269 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | glassy | glassy | on | glassy | cross-off | cross-on | glassy | glassy | cross-on | glassy | glassy | on | cross | glassy | on | glassy | glassy | cross-on | glassy |
High Tide | 4:17PM2.74m | 4:34AM2.89m | 4:56PM2.65m | 5:12AM2.79m | 5:35PM2.52m | 5:50AM2.64m | 6:15PM2.37m | 6:29AM2.47m | 6:56PM2.20m | 7:12AM2.31m | 7:44PM2.04m | 8:02AM2.15m | 8:44PM1.92m | ||||||||
Low Tide | 10:10AM0.11m | 10:22PM0.17m | 10:50AM0.15m | 11:00PM0.26m | 11:29AM0.24m | 11:38PM0.39m | 12:08PM0.37m | 00:17AM0.54m | 12:50PM0.52m | 00:58AM0.70m | 1:36PM0.68m | 1:46AM0.86m | 2:32PM0.81m | 2:46AM0.98m | |||||||
 | |  |  | |  | | | | | | | | |  |  | | | | | | |
 | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:26 | — | — | 5:26 | — | — |
 | — | 5:39 | — | — | 5:38 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:36 | — |
mm | 1 | 4 | 4 | — | 3 | 2 | 1 | 8 | 3 | — | 3 | 1 | — | 2 | — | — | — | — | — | 4 | 15 |
Temp °C | 29 | 29 | 28 | 29 | 29 | 28 | 28 | 28 | 27 | 28 | 28 | 27 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 |
Feels °C | 34 | 34 | 33 | 33 | 33 | 33 | 31 | 31 | 30 | 31 | 31 | 32 | 32 | 32 | 33 | 32 | 32 | 33 | 32 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 9 | SW 16 | SSW 8 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 18 |
| kJ | 99 | 99 | 73 | 69 | 92 | 90 | 91 | 111 | 122 | 371 | 96 | 251 | 248 | 297 | 238 | 138 | 138 | 138 | 136 | 134 | 269 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 19 | SW 12 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | S 8 | SW 16 | SSW 8 | S 9 | S 9 | S 8 | S 9 | S 9 | S 9 | S 9 | S 9 | S 7 |
| kJ | 140 | 108 | 234 | 73 | 192 | 252 | 192 | 358 | 310 | 91 | 291 | 70 | 85 | 78 | 71 | 52 | 56 | 57 | 56 | 55 | 32 |
Swell 3 Height (m) Direction Period (s) | SW 21 | SW 19 | SW 13 | SW 19 | SW 12 | SW 12 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 22 | SW 22 | SW 21 | SW 20 | SW 20 | SW 19 | SW 19 | SW 21 | SSW 12 |
| kJ | 70 | 131 | 104 | 127 | 52 | 50 | 128 | 109 | 79 | 51 | 50 | 19 | 78 | 118 | 160 | 145 | 136 | 184 | 181 | 220 | 98 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 23 | 0 | 0 | 23 | 0 | 0 | 4 | 0 | 0 | 71 | 0 | 0 | 159 | 2 | 0 | 149 | 0 | 0 | 149 | 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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