
Surf Forecasts:
The Tree surf forecast from 9 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 9PM (local time) - 3ft (0.9m), 17s 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★+): Wednesday 9 Sep, 9PM (local time) - 3ft (0.9m), 17s 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 Wednesday (Sep 09) at 9PM. The primary swell is predicted to be 0.9m and 17s period with a secondary swell of 0.5m and 13s. 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 (Wed 9th Sep) | 3ft (0.9m) 17s |
| Best Surf | 9PM (Wed 9th Sep) | 3ft (0.9m) 17s |
| 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 folks, Rusty here. Let’s break down the outlook for The Tree over the next two weeks.
The long-range picture is looking promising. We’ve got a solid run of surfable days, with the best conditions coming in the mornings when the wind is light or glassy. The early part of the week is a standout, but the whole first week offers some real quality.
The Tree is a fairly consistent spot, exposed to the SW, and that’s exactly where the swell is coming from. The water temperature is 86°F, which is a touch warmer than normal for this time of year, so you’ll be comfortable in a spring suit or less.
The first real standout is Thursday morning, the 10th of September. The swell is 4ft from the SW with a period of 17 seconds – that’s a proper groundswell with serious energy. The combined energy is 919 (moderate wave energy), and with the wind glassy out of the NNW, it’s going to be clean. This is the best wave of the early run for advanced surfers. The swell is not too big for the level, but the long period means it will be powerful and better shaped.
The following morning, Friday the 11th, is another cracker. Swell is 4ft from the SW, period 16 seconds, and again glassy conditions with no wind. The energy is 629 (moderate). It’s a very similar picture to the day before, and you can’t go wrong.
Moving into the second week, the swell settles a bit but the quality holds. Tuesday morning, the 15th of September, digs in with a building swell. The morning is small at 2ft, but by Tuesday afternoon it’s up to 3ft from the SW with a period of 17 seconds. The wind is glassy from the west, and the energy jumps to 594. This is a nice pick for the afternoon, with clean conditions.
Wednesday morning, the 16th of September, is another good option: 3ft from the SW, period 16 seconds, light wind from the north, and glassy conditions. Energy is 512 (moderate). It’s a repeat of the pattern: clean morning waves.
The last real standout comes at the end of the run. Monday morning, the 21st of September, the swell is 3ft from the SW with a period of 18 seconds. The energy is 583 (moderate), and the wind is glassy from the south. This is a strong, long-period swell that will wrap in nicely. The afternoon is even better with the wind dropping to calm, creating a glassy, clean surface. This is a solid option for the second week.
Tuesday morning, the 22nd of September, is also worth a mention: 3ft from the SW, period 16 seconds, calm wind, glassy, with energy of 677 (moderate). It’s a very similar vibe to the Monday.
For the most part, the winds are light or glassy in the mornings, which is a major positive. The afternoons do get a bit of a cross-on or onshore breeze, and there’s a risk of thunderstorms, so the mornings are the window. The Tree can sometimes draw a crowd, so factor that in.
Overall, the best bets are the mornings of the 10th, 11th, 15th, 16th, 21st, and 22nd. The standout is Thursday the 10th and Friday the 11th. The long period swells are a treat for a reef or point set-up, so these waves will have plenty of push.
Rusty.
Short Range ForecastHeavy rain (total 23mm), heaviest during Wed afternoon. Warm (max 29°C on Wed morning, min 27°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 61mm), heaviest during Mon night. Warm (max 29°C on Sat morning, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | |||||||||||||||
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 16 | SW 16 | SW 18 | SW 17 | 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 |
Wave Graph | |||||||||||||||||||||
371 | 310 | 781 | 861 | 651 | 635 | 546 | 427 | 346 | 346 | 289 | 176 | 140 | 131 | 234 | 127 | 192 | 252 | 246 | 354 | 306 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | glassy | on | glassy | glassy | cross-on | cross-off | glassy | cross-on | glassy | glassy | cross-on | glassy | glassy | cross-on | on | glassy | glassy | glassy |
High Tide | 1:12PM2.57m | 1:46AM2.65m | 2:05PM2.68m | 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 | ||||||||
Low Tide | 7:28PM0.29m | 7:55AM0.33m | 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 | ||||||||
5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | |
— | 5:42 | — | — | 5:42 | — | — | 5:40 | — | — | 5:39 | — | — | 5:39 | — | — | 5:38 | — | — | 5:37 | — | |
mm | — | 9 | 1 | — | 5 | 1 | — | 4 | 3 | — | 11 | 5 | — | 6 | 6 | 2 | 8 | 23 | 5 | — | — |
Temp °C | 29 | 29 | 28 | 29 | 28 | 27 | 29 | 29 | 28 | 29 | 29 | 27 | 28 | 29 | 28 | 29 | 28 | 28 | 26 | 27 | 27 |
Feels °C | 32 | 32 | 33 | 32 | 31 | 31 | 32 | 32 | 32 | 32 | 33 | 32 | 32 | 33 | 32 | 32 | 31 | 33 | 30 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | S 9 | S 9 | S 9 | S 8 | S 8 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | SW 16 |
371 | 310 | 781 | 861 | 651 | 635 | 546 | 427 | 346 | 346 | 289 | 99 | 99 | 96 | 105 | 105 | 107 | 147 | 120 | 93 | 306 | |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 13 | W 10 | S 10 | S 7 | S 7 | SSW 7 | S 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 | S 8 |
68 | 79 | 18 | 48 | 39 | 66 | 63 | 68 | 52 | 42 | 64 | 176 | 140 | 108 | 234 | 73 | 192 | 252 | 246 | 354 | 66 | |
Swell 3 Height (m) Direction Period (s) | W 10 | SW 19 | S 11 | WNW 10 | WNW 10 | WNW 10 | S 11 | S 11 | 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 |
34 | 133 | 9 | 10 | 10 | 10 | 20 | 9 | 17 | 7 | 80 | 30 | 70 | 131 | 80 | 127 | 51 | 50 | 128 | 109 | 80 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 6 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 38 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 148 | 0 | 0 | 31 | 0 | 0 | 91 | 0 | 0 | 23 | 0 | 0 | 31 | 0 | 0 | 155 | 5 | 0 | 0 | 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)
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.










