Surf Forecasts:
The Tree surf forecast from 31 Aug 2026:
- Best quality surf: Thursday 3 Sep, 9PM (local time) - 4ft (1.2m), 15s period, SSW swell with glassy winds.
- Most powerful swell: Friday 4 Sep, 12PM (local time) - 5ft (1.6m), 17s period, SW swell with 1,579 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 6AM (local time) - 3.5ft (1.1m), 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 Monday (Aug 31) at 6AM. The primary swell is predicted to be 1.1m and 13s period with a secondary swell of 0.5m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at The Tree in the next 16 days are 1.6m 17s and forecast to arrive on Friday (Sep 04) at 12PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 31st Aug) | 3.5ft (1.1m) 13s |
| Best Surf | 9PM (Thu 3rd Sep) | 4ft (1.2m) 15s |
| Most Powerful | 12PM (Fri 4th Sep) | 5ft (1.6m) 17s |
Table - best surf conditions forecast for The Tree over the next 16 days.
The Lowdown
G'day, Rusty here. The Tree is the main show in the region for the next couple of weeks. It's a fairly consistent spot that picks up a solid SW groundswell, and with the right wind it's a dream. The water is sitting about average for this time of year, so no nasty surprises on that front.
The action starts Monday morning, 31 August. We’ve got a 4ft SW swell rolling in with a 13-second period, and glassy conditions with a whisper of NW wind. The combined energy is moderate (410), so there’s enough push to get into a nice rhythm. The surf is clean and inviting.
Monday afternoon gets a bit messy with onshore SSW wind, so the morning is the pick of that day.
Tuesday morning, 1 September, is a ripper. The swell drops a touch to 3ft from the SW, but it’s dead calm and glassy. The energy is still moderate (307) and the waves are lined up. It’s smaller, but perfect for a long Sunday session.
Wednesday morning, 2 September, is another cracker. A 3ft SSW swell with a 13-second period, light WNW wind, and glassy conditions. The energy is moderate (435). The afternoon turns ugly with a cross-on breeze and a 2ft mess, so get in early.
Thursday morning, 3 September, is glassy calm with a 2ft SW swell and a long 16-second period. The energy is moderate (376). That long period will make the waves easier to paddle out into, but at a beach break it might fatten up a bit. Still, clean conditions are hard to beat.
Now, the standout. Friday morning, 4 September, is the session to circle. We’ve got a 4ft SW swell with a 17-second period, and the combined energy jumps to strong (1063). The wind is calm and glassy. This is serious groundswell – powerful, well-shaped, and built for experienced surfers. It’s not for beginners, but if you know what you’re doing, it’s world-class.
Saturday morning, 5 September, is another exceptional morning. A 5ft SW swell, 16-second period, and glassy with a light SSE breeze. The energy is strong (1353). Once again, this is a big, clean, powerful swell that’s only for the crew who can handle it. The afternoon gets messy with onshore wind, so it’s a dawn-patrol special.
Sunday morning, 6 September, is still very good. A 4ft SW swell, 14-second period, and a light NNW wind with glassy conditions. The energy is moderate (743). The waves are still solid and clean.
Monday morning, 7 September, is calm and glassy with a 3ft SW swell and 14-second period. Energy is moderate (505). A nice, clean, mellow session.
From Tuesday, 8 September, onwards, the swell drops, but there are still clean windows. Tuesday morning has a 2ft SW swell with 18-second period, but a cross-off wind keeps it clean. Energy is moderate (467). Wednesday morning, 9 September, is glassy with a 3ft SW swell and 16-second period (528 energy). Thursday morning, 10 September, has a 4ft SW swell with 17-second period, but a cross-shore wind makes it a bit tricky – still, the energy is strong (1049). Friday morning, 11 September, is clean with a cross-off breeze, 4ft SW swell and 16-second period (663 energy). Saturday morning, 12 September, is glassy with a 3ft SW swell (401 energy). Sunday morning, 13 September, is glassy with a 2ft SW swell (309 energy). Monday morning, 14 September, is glassy with a tiny 1ft, 18-second period swell (283 energy). Tuesday morning, 15 September, is glassy but the swell is only 1ft with a 15-second period and very low energy (190) – surfable, but you’ll be working for it.
The absolute best of the whole run is Friday morning, 4 September, and Saturday morning, 5 September. Those are the ones. Clean, powerful, groundswell of the highest order. Get on it.
Rusty
Short Range ForecastHeavy rain (total 35mm), heaviest during Mon night. Warm (max 29°C on Mon morning, min 25°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 62mm), heaviest during Sat afternoon. Warm (max 29°C on Fri morning, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | ||||||||||||||
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 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 18 | SW 17 | SW 16 | SW 16 | SW 19 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 |
Wave Graph | |||||||||||||||||||
549 | 392 | 342 | 282 | 199 | 216 | 212 | 212 | 222 | 163 | 248 | 504 | 795 | 962 | 1415 | 1225 | 1317 | 1055 | 788 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | on | cross-on | glassy | on | glassy | glassy | cross-on | glassy | glassy | on | glassy | glassy | on | glassy | glassy | on | glassy |
High Tide | 4:36AM2.80m | 4:53PM2.61m | 5:12AM2.81m | 5:32PM2.55m | 5:51AM2.77m | 6:15PM2.46m | 6:35AM2.69m | 7:03PM2.34m | 7:26AM2.57m | 8:00PM2.22m | 8:27AM2.45m | 9:10PM2.14m | |||||||
Low Tide | 10:21PM0.25m | 10:48AM0.26m | 10:57PM0.26m | 11:27AM0.25m | 11:35PM0.31m | 12:10PM0.30m | 00:17AM0.39m | 12:57PM0.38m | 1:06AM0.50m | 1:52PM0.49m | 2:04AM0.62m | 2:58PM0.57m | |||||||
— | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | |
— | — | 5:46 | — | — | 5:46 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | |
mm | 3 | — | 4 | 16 | — | 1 | 7 | — | 4 | 9 | — | 4 | 5 | 1 | 6 | 17 | 1 | 19 | 8 |
Temp °C | 28 | 29 | 29 | 27 | 27 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 29 | 29 | 26 | 28 | 28 | 26 |
Feels °C | 32 | 32 | 32 | 31 | 30 | 32 | 32 | 33 | 31 | 32 | 33 | 31 | 32 | 32 | 33 | 32 | 33 | 32 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 13 | S 6 | SW 12 | SW 12 | SSW 13 | SW 13 | SW 12 | SW 16 | SSW 12 | SW 18 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 |
549 | 392 | 342 | 282 | 52 | 216 | 212 | 212 | 170 | 152 | 248 | 203 | 795 | 962 | 1415 | 1225 | 1317 | 1055 | 788 | |
Swell 2 Height (m) Direction Period (s) | S 6 | S 6 | S 6 | S 7 | SW 13 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 12 | SW 19 | SSW 7 | SSW 7 | W 9 | W 9 | W 9 | S 7 | SSW 7 |
19 | 12 | 18 | 33 | 199 | 53 | 42 | 31 | 33 | 34 | 94 | 504 | 35 | 41 | 27 | 27 | 25 | 33 | 60 | |
Swell 3 Height (m) Direction Period (s) | SW 6 | WSW 6 | WSW 6 | W 9 | SSW 12 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | S 7 | SW 15 | SSW 12 | SW 11 | SSW 11 | S 11 | S 12 | W 9 | W 9 |
8 | 6 | 6 | 14 | 56 | 113 | 112 | 192 | 222 | 163 | 34 | 134 | 93 | 60 | 25 | 22 | 11 | 25 | 14 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 155 | 4 | 0 | 185 | 0 | 0 | 54 | 0 | 0 | 71 | 0 | 0 | 50 | 0 | 0 | 31 | 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.











