
Surf Forecasts:
The Tree surf forecast from 16 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 9PM (local time) - 2.5ft (0.8m), 16s period, SW swell with glassy winds.
- Most powerful swell: Sunday 20 Sep, 12PM (local time) - 2.5ft (0.8m), 19s period, SW swell with 526 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 9PM (local time) - 2.5ft (0.8m), 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 Tuesday (Sep 15) at 9PM. The primary swell is predicted to be 0.8m and 16s period with a secondary swell of 0.9m and 8s. 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 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Monday (Sep 21) at 3AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Tue 15th Sep) | 2.5ft (0.8m) 16s |
| Best Surf | 9PM (Tue 15th Sep) | 2.5ft (0.8m) 16s |
| Most Powerful | 12PM (Sun 20th Sep) | 2.5ft (0.8m) 19s |
Table - best surf conditions forecast for The Tree over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s talk about what’s coming up at The Tree. This spot is an exposed break, so it pulls in all that southwest energy nicely, but being pretty exposed it can get a bit messy when the wind is wrong. The water temp is sitting at a balmy 86°, which is a touch warmer than normal for this time of year – no need for a thick wetsuit, just a spring suit or maybe even boardshorts if you’re tough enough.
We’ve got a solid run of action starting this afternoon, Tuesday the 15th. The first session is a real standout. The Tree is seeing a clean 3ft southwest swell, with a long 17-second period – that’s proper groundswell. Combined energy is solid (575), and it’s glassy with barely a whisper of wind from the south. This is the kind of afternoon you dream about: clean, lined-up waves for the advanced crew. This spot is fairly consistent and the sand is usually good, just be aware crowds are possible.
Overnight into Wednesday morning the 16th keeps that quality going. The swell bumps up just a touch to 3ft, still a long 16-second period, and we get a glassy NE wind. Another top session. The afternoons this week get a bit sketchy with cross-onshore winds, so stick to the mornings.
Thursday morning the 17th is clean and glassy again, with 3ft of SW swell on a 14-second period. Solid.
Now, the real standout of the whole 16-day window? Look no further than Monday the 21st. Both the morning and afternoon are pure gold. Morning is glassy with a NNE breeze and 3ft of SW swell at 18 seconds. The afternoon goes dead calm, absolutely glassy with the same 3ft, 18-second swell. Combined energy pushes up to 649. This is the pick of the fortnight – set your schedule around it.
There’s another promising one further out. On Sunday morning the 27th, we see a building 4ft swell from the southwest, 13-second period, combined energy cranked up to 924 (moderate to strong energy), and glassy conditions with a light NNW wind. That’s going to be a fun, powerful morning, but at 4ft it’s still manageable. After that, the weather gets a bit more unstable.
Later on, the forecast shows a bigger pulse of 5ft to 6ft swell around the 24th and 25th, but the period drops short (7-8 seconds) and winds get messy, making it a bit of a washing machine – possibly more interesting for the kite crew than paddle surfing. Keep an eye on Wednesday the 30th morning, though: a 3ft south-southwest swell with a 14-second period and clean cross-off winds from the ESE shows up late in the game. It’s promising for the close of the month, but that’s a long way out so don’t bet the house on it.
Overall, you’ve got a fantastic week ahead, with standout clean mornings right up until the 21st. Don’t sleep on that Monday the 21st.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Thu night. Warm (max 29°C on Wed morning, min 26°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 38mm), heaviest during Sun night. Warm (max 29°C on Fri afternoon, min 25°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Tue 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
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 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 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 16 |
Wave Graph | ||||||||||||||||||||
358 | 310 | 371 | 353 | 251 | 248 | 297 | 238 | 145 | 138 | 184 | 181 | 220 | 269 | 446 | 520 | 370 | 516 | 510 | 375 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | glassy | cross-on | glassy | glassy | on | cross | glassy | on | glassy | glassy | on | glassy | cross | cross-on | cross-off | glassy | glassy | cross-off |
High Tide | 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 | 9:04AM2.05m | 9:57PM1.87m | 10:17AM2.01m | 11:12PM1.93m | |||||||
Low Tide | 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 | 3:40PM0.88m | 4:00AM1.03m | 4:52PM0.87m | ||||||||
— | — | 5:28 | — | — | 5:28 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | 5:26 | — | — | |
5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:36 | — | — | 5:35 | — | — | 5:35 | — | |
mm | 2 | 1 | — | 2 | — | — | 3 | 6 | — | 1 | 2 | — | 2 | 14 | 1 | 4 | 14 | — | — | 9 |
Temp °C | 28 | 28 | 29 | 29 | 28 | 29 | 29 | 27 | 29 | 29 | 28 | 29 | 29 | 28 | 28 | 28 | 25 | 27 | 27 | 27 |
Feels °C | 32 | 33 | 32 | 32 | 33 | 32 | 32 | 31 | 31 | 32 | 33 | 32 | 32 | 33 | 32 | 31 | 28 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | SW 16 | SW 16 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | S 9 | S 9 | S 7 | S 6 | SW 18 | SW 19 | SW 19 | SW 18 | SW 18 | S 7 | S 7 |
108 | 88 | 371 | 353 | 251 | 248 | 297 | 238 | 138 | 56 | 55 | 45 | 41 | 269 | 446 | 520 | 370 | 516 | 91 | 86 | |
Swell 2 Height (m) Direction Period (s) | SW 17 | SW 16 | S 8 | S 8 | S 8 | S 9 | S 9 | S 8 | S 8 | SW 13 | SW 13 | SW 13 | SW 13 | S 6 | SSW 6 | SSW 6 | S 6 | S 7 | SW 18 | SW 16 |
358 | 310 | 92 | 68 | 50 | 87 | 78 | 52 | 52 | 138 | 138 | 136 | 134 | 30 | 28 | 28 | 39 | 57 | 510 | 375 | |
Swell 3 Height (m) Direction Period (s) | 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 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SSW 11 | SSW 11 |
109 | 79 | 51 | 50 | 19 | 78 | 118 | 160 | 145 | 136 | 184 | 181 | 220 | 72 | 71 | 69 | 68 | 61 | 48 | 47 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 40 | 0 | 0 | 194 | 5 | 0 | 54 | 0 | 0 | 54 | 0 | 4 | 4 | 0 | 0 | 0 | 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.










