Surf Forecasts:
The Tree surf forecast from 11 Sep 2026:
- Best quality surf: Friday 11 Sep, 12AM (local time) - 3.5ft (1.1m), 16s period, SW swell with glassy winds.
- Most powerful swell: Friday 11 Sep, 12AM (local time) - 3.5ft (1.1m), 16s period, SW swell with 635 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 12AM (local time) - 3.5ft (1.1m), 16s 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 Friday (Sep 11) at 12AM. The primary swell is predicted to be 1.1m and 16s period with a secondary swell of 0.8m 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 1.1m 16s and forecast to arrive on Friday (Sep 11) at 12AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 11th Sep) | 3.5ft (1.1m) 16s |
| Best Surf | 12AM (Fri 11th Sep) | 3.5ft (1.1m) 16s |
| Most Powerful | 12AM (Fri 11th Sep) | 3.5ft (1.1m) 16s |
Table - best surf conditions forecast for The Tree over the next 16 days.
The Lowdown
Alright, Rusty here again, breakin' down the same outlook, but in feet and miles per hour for those who think that way.
So the water is running a touch warmer than average for this time of year, so you can ditch the thickest suit.
We've got a dry spell right out of the gate. Nothing really moving until the first real call. That comes on Friday morning, September 11th. We're looking at a solid 4ft southwest swell with a long 16-second period – that’s proper groundswell energy. The combined energy is a strong 618. The wind? Dead calm, glassy. For a spot as tricky as The Tree, that is a major positive. The swell direction is spot on. Crowds are possible, but the clean conditions could be worth it.
Saturday, September 12th keeps the glassy theme in the morning, but the swell drops to 3ft. Still a clean wave, though.
After that, through the week, the mornings stay the ticket. Sunday the 13th and Monday the 14th see the swell drop to the 1ft to 2ft range, but those are some seriously long period waves (19 seconds). The energy is weak at around 291 to 354, but on a reef or a point, you’ll still find a long, clean line.
We get a bounce back in the middle of the week. Tuesday the 15th and Wednesday the 16th see 2ft to 3ft swell, again with decent period. The morning glass-offs are repeating. The afternoons are a washout with cross-on breezes.
Now for the later stuff. Monday morning, September 21st is a standout prospect: a 3ft southwest swell, 18-second period, and glassy. The energy jumps to a powerful 599.
The big dog of the forecast is Tuesday afternoon, September 22nd. The swell jumps to 6ft out of the south-southwest, but the period is a short 8 seconds. The combined energy is a very strong 814. At that size, it's a real beast, only for the experts. The wind turns glassy for that session, making the waves clean, but it’s serious power.
The long-range stuff gets less certain, but a clean session pops up on Friday morning, September 25th with a 2ft southwest swell and calm winds. The energy is weaker at 311, but it's a clean opportunity.
So the playbook is clear: mornings are the gold. The single best window for a clean, manageable, and quality wave is Friday morning, September 11th. The heavy-hitter session for the brave is Tuesday afternoon, September 22nd.
Rusty, out.
Short Range ForecastHeavy rain (total 24mm), heaviest during Sat night. Warm (max 29°C on Thu afternoon, min 26°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 54mm), heaviest during Tue night. Warm (max 29°C on Sun afternoon, min 24°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Thu 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
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 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 737 | 635 | 546 | 427 | 346 | 346 | 245 | 176 | 140 | 131 | 234 | 127 | 192 | 252 | 192 | 358 | 310 | 371 | 353 | 214 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | glassy | cross-on | glassy | glassy | cross-on | glassy | glassy | cross-on | cross-off | glassy | cross-on | cross-off | glassy | cross-on | glassy | glassy | on | glassy |
High Tide | 2:33AM2.81m | 2:52PM2.75m | 3:16AM2.91m | 3:36PM2.77m | 3:56AM2.93m | 4:17PM2.74m | 4:34AM2.89m | 4:56PM2.65m | 5:12AM2.79m | 5:35PM2.52m | 5:50AM2.64m | 6:15PM2.37m | ||||||||
Low Tide | 8:17PM0.18m | 8:44AM0.21m | 9:01PM0.12m | 9:28AM0.13m | 9:42PM0.12m | 10:10AM0.11m | 10:22PM0.17m | 10:50AM0.15m | 11:00PM0.26m | 11:29AM0.24m | 11:38PM0.39m | 12:08PM0.37m | 00:17AM0.54m | |||||||
 |  |  | |  |  | | | | | | | | |  | |  | | | | |
 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — |
 | 5:42 | — | — | 5:40 | — | — | 5:39 | — | — | 5:39 | — | — | 5:38 | — | — | 5:37 | — | — | 5:37 | — |
mm | 1 | 2 | — | 2 | 4 | — | 7 | 7 | 1 | 9 | 6 | — | 4 | 8 | 1 | 8 | 18 | — | 2 | 9 |
Temp °C | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 29 | 27 | 28 | 28 | 25 | 28 | 28 | 27 |
Feels °C | 33 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 33 | 33 | 31 | 32 | 33 | 32 | 33 | 31 | 28 | 31 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | S 9 | S 9 | SSW 8 | SSW 8 | S 8 | S 8 | SSW 8 | S 8 | SSW 8 | S 9 | SW 16 | SW 16 | SSW 7 |
| kJ | 737 | 635 | 546 | 427 | 346 | 346 | 245 | 99 | 99 | 115 | 112 | 91 | 89 | 109 | 82 | 118 | 99 | 371 | 353 | 67 |
Swell 2 Height (m) Direction Period (s) | S 7 | SSW 7 | SSW 7 | SSW 7 | S 7 | S 8 | S 8 | SW 13 | SW 13 | SW 13 | SW 19 | SW 12 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | S 8 | S 8 | SW 14 |
| kJ | 39 | 69 | 52 | 71 | 51 | 42 | 64 | 176 | 140 | 108 | 234 | 73 | 192 | 252 | 192 | 358 | 310 | 90 | 84 | 214 |
Swell 3 Height (m) Direction Period (s) | W 10 | WNW 10 | S 11 | SSW 19 | S 10 | S 10 | SW 18 | SSW 18 | SW 21 | SW 19 | SW 13 | SW 19 | SW 12 | SW 12 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 11 |
| kJ | 8 | 10 | 20 | 37 | 17 | 8 | 80 | 30 | 71 | 131 | 104 | 127 | 52 | 51 | 128 | 109 | 79 | 51 | 50 | 19 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 13 | 0 | 0 | 71 | 0 | 0 | 39 | 0 | 0 | 71 | 0 | 0 | 71 | 0 | 0 | 71 | 0 | 0 | 155 | 0 |
Best forecast wave conditions in Golfo de Nicoya | ||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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.
Nearest