Surf Forecasts:
Playa Santa Teresa surf forecast from 20 Aug 2026:
- Best quality surf: Thursday 20 Aug, 9PM (local time) - 3.5ft (1.1m), 11s period, SSW swell with glassy winds.
- Most powerful swell: Friday 21 Aug, 3PM (local time) - 4.5ft (1.3m), 11s period, SSW swell with 430 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 9PM (local time) - 3.5ft (1.1m), 11s period with SSW swell.
Best Forecast Surf Conditions for Playa Santa Teresa this week:
The surf forecast for Playa Santa Teresa over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 9PM. The primary swell is predicted to be 1.1m and 11s 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 Playa Santa Teresa in the next 16 days are 1.3m 11s and forecast to arrive on Friday (Aug 21) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 11s period and expected on Friday (Aug 21) at 9AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 20th Aug) | 3.5ft (1.1m) 11s |
| Best Surf | 9PM (Thu 20th Aug) | 3.5ft (1.1m) 11s |
| Most Powerful | 3PM (Fri 21st Aug) | 4.5ft (1.3m) 11s |
Table - best surf conditions forecast for Playa Santa Teresa over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it.
We’ve got a solid run of surf shaping up for Playa Santa Teresa. The water is sitting at 87°F, which is *much warmer* than normal for this time of year – a real treat if you’re going in without a spring suit.
The best window kicks off on Thursday the 20th of August with a clean morning. Swell is coming from the SSW at 3ft with a 10-second period, and a light ENE offshore breeze keeps things tidy. The combined energy is moderate (296), so there’s some push but nothing too crazy for a beginner-friendly spot like this. Expect a few shoulders to work with.
Friday the 21st of August is the standout early on. Morning glass with a NNE breeze at just 3 mph, and the swell bumps up to 4ft from the SSW with a period of 11 seconds. Energy is solid at 434 – that’s a noticeable step up. The offshore wind direction is perfect for Santa Teresa, and the consistency is good. This is the morning to get in the water.
Saturday the 22nd drops right off: 2ft swell with a long 14-second period, but energy is weak at 102. The morning is glassy from the north, so you’ll be scratching for knee-high runners. Not much to write home about.
There’s a lull through the middle of the week. Sunday the 23rd through Wednesday the 27th of August sees tiny swell, mostly under 2ft, with a mix of light offshores and glassy mornings. The energy stays low, between 95 and 304. It’s a good time to work on your pop-up or fix a ding, but don’t expect drive.
We start to see a pulse building again on Friday the 28th of August. Swell jumps to 3ft from the SW, and the period stretches to 19 seconds – that’s proper groundswell. Energy is back up to 680, but the wind is a bit cross-shore in the morning, so it’s not firing on all cylinders.
Then we get the real standout of the whole forecast. Saturday the 29th of August morning: 5ft of SW groundswell with a 16-second period, and a light 3 mph cross-offshore from the east. The energy is pumping at 1331 – strong. This is for experienced surfers, as the size and power will test you. Plenty of juice, and the wind keeps it clean. If you’re a confident surfer, this is the session to aim for.
Sunday the 30th holds a drop to 5ft, still with a 15-second period. Morning has a light cross-off from the east again, energy at 899 – still very good. The afternoon gets a bit messy with a cross-onshore, so get in early.
Monday the 31st of August and Tuesday the 1st of September settle back to 4ft and 3ft respectively, with glassy or calm conditions each morning. The energy stays moderate at 443 and 457. Good for a beginner or a laid-back session.
Wednesday the 2nd of September morning is glassy again with 3ft from the SSW, but the energy is moderate at 473. The afternoon picks up a longer period but turns onshore.
Thursday the 3rd of September is a promising long-range call. Morning glass from the ENE, 3ft of SW groundswell with an 18-second period, and energy at 750. That’s a nice setup if the forecast holds.
Friday the 4th of September ends the run with a glassy morning, 4ft from the SW at 16 seconds, energy at 685. Another solid option for the dedicated.
Overall, the best bet is Saturday the 29th of August morning for experienced surfers. For everyone else, Friday the 21st of August morning or Thursday the 3rd of September morning are your clean, manageable windows.
Rusty.
Short Range ForecastHeavy rain (total 25mm), heaviest during Sat night. Warm (max 30°C on Sat morning, min 27°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 35mm), heaviest during Tue night. Warm (max 29°C on Sun morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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) | SSW 10 | SSW 10 | SSW 11 | SW 15 | SSW 11 | SW 16 | SW 14 | SSW 14 | SW 20 | SW 19 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SSW 7 |
Wave Graph | |||||||||||||||||||||
154 | 157 | 350 | 55 | 430 | 129 | 95 | 136 | 118 | 184 | 206 | 260 | 199 | 241 | 322 | 165 | 125 | 191 | 110 | 77 | 102 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | glassy | glassy | on | glassy | glassy | cross-on | cross | glassy | cross-on | glassy | glassy | cross-on | cross-off | glassy | cross-on | off | cross-off | cross-on | cross-off |
High Tide | 8:24PM1.93m | 8:45AM2.09m | 9:25PM1.81m | 9:47AM2.00m | 10:36PM1.77m | 10:55AM1.98m | 11:47PM1.81m | 12:00PM2.03m | 00:46AM1.91m | 12:54PM2.12m | 1:33AM2.06m | 1:41PM2.23m | 2:13AM2.21m | ||||||||
Low Tide | 2:20PM0.65m | 2:26AM0.78m | 3:18PM0.75m | 3:25AM0.89m | 4:25PM0.80m | 4:35AM0.93m | 5:33PM0.77m | 5:44AM0.90m | 6:31PM0.69m | 6:43AM0.82m | 7:19PM0.59m | 7:32AM0.71m | 7:59PM0.48m | ||||||||
5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | |
— | 5:55 | — | — | 5:54 | — | — | 5:54 | — | — | 5:53 | — | — | 5:53 | — | — | 5:52 | — | — | 5:52 | — | |
mm | — | 4 | 3 | — | 1 | 1 | — | 5 | 11 | 1 | 6 | 1 | 3 | 4 | 4 | — | 5 | 11 | 2 | 6 | 8 |
Temp °C | 29 | 29 | 28 | 29 | 29 | 28 | 30 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 27 | 28 | 28 | 27 | 28 | 28 | 26 |
Feels °C | 33 | 32 | 33 | 33 | 32 | 33 | 34 | 32 | 32 | 32 | 32 | 33 | 33 | 33 | 31 | 31 | 30 | 32 | 31 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 10 | SSW 10 | SSW 11 | S 11 | SSW 11 | S 11 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 8 | S 7 | S 7 | S 7 | SSW 7 |
154 | 157 | 350 | 345 | 430 | 338 | 210 | 192 | 151 | 134 | 134 | 166 | 132 | 102 | 76 | 73 | 68 | 61 | 57 | 92 | 102 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | SSW 13 | SW 13 | SW 15 | SW 15 | SW 16 | SW 14 | SSW 14 | SSW 13 | SSW 13 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 |
142 | 114 | 83 | 55 | 35 | 129 | 95 | 136 | 118 | 120 | 206 | 260 | 199 | 241 | 322 | 165 | 125 | 191 | 110 | 77 | 75 | |
Swell 3 Height (m) Direction Period (s) | S 13 | S 12 | SSW 19 | SW 12 | SSW 12 | SW 21 | WSW 6 | SW 20 | SW 20 | SW 19 | SW 13 | SW 13 | SW 12 | SSW 12 | SW 12 | SW 12 | SSW 11 | SW 11 | SW 11 | SSW 11 | SW 19 |
28 | 42 | 36 | 23 | 15 | 18 | 7 | 60 | 97 | 184 | 84 | 82 | 72 | 56 | 36 | 37 | 13 | 18 | 30 | 12 | 56 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SW 6 | — | — | SW 6 | — | — | — | E 3 | — | — | — | — | — | — | — | — | — |
— | — | — | — | 9 | — | — | 5 | — | — | — | 2 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 100 | 0 | 0 | 100 | 0 | 0 | 106 | 17 | 0 | 53 | 0 | 0 | 0 | 0 | 0 | 36 | 0 | 0 | 56 | 0 |
Best forecast wave conditions in Golfo de Nicoya | |||||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||||
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Information about the Playa Santa Teresa Surf forecast
The above surf forecast table for Playa Santa Teresa provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Playa Santa Teresa can be found by selecting the local surf guide option on the grey menu. Our Playa Santa Teresa 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 (Playa Santa Teresa) 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 Playa Santa Teresa 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.
Playa Santa Teresa is 51 km (32 miles) from Puntarenas. If you plan a holiday in Golfo de Nicoya, look for hotels and other accommodation in Puntarenas. Puntarenas has rooms for a wide range of budgets as well as car hire and transport links.











