
Surf Forecasts:
Tamarindo surf forecast from 5 Aug 2026:
- Best quality surf: Saturday 8 Aug, 12AM (local time) - 3ft (0.9m), 16s period, SW swell with offshore winds.
- Most powerful swell: Saturday 8 Aug, 3PM (local time) - 3.5ft (1.1m), 15s period, SW swell with 509 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 6PM (local time) - 1.5ft (0.4m), 15s period with SW swell.
Best Forecast Surf Conditions for Tamarindo this week:
The surf forecast for Tamarindo over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 05) at 6PM. The primary swell is predicted to be 0.4m and 15s period with a secondary swell of 0.4m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tamarindo in the next 16 days are 1.1m 15s and forecast to arrive on Saturday (Aug 08) at 3PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 8s period and expected on Thursday (Aug 06) at 12PM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Wed 5th Aug) | 1.5ft (0.4m) 15s |
| Best Surf | 12AM (Sat 8th Aug) | 3ft (0.9m) 16s |
| Most Powerful | 3PM (Sat 8th Aug) | 3.5ft (1.1m) 15s |
Table - best surf conditions forecast for Tamarindo over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's take a look at what's comin' our way for Tamarindo over the next couple of weeks.
We've got a bit of a slow start, but things are lining up for some proper sessions. The water is sitting at a balmy 86°, which is a touch warmer than normal for this time of year, so you can leave the thick suit at home.
The first real standout kicks off on Friday, August 7th. The morning's looking clean, with a cross-offshore breeze from the ENE at only 9 mph. We've got a long-period SSW groundswell running at 18 seconds, pushing in waves around 2 ft. The combined swell energy is ramping up nicely at 377 (moderate energy), and with those clean conditions, the river-mouth banks should be offering up some fun, groomed lines. It's not huge, but the quality is there for a longboard or a fish.
Then, hold onto your boardies for the best of the forecast. Saturday, August 8th is the day to circle. After a clean morning with 3 ft SSW swell and good energy (610), the afternoon goes absolutely glassy—zero wind. The swell bumps up to 4 ft out of the SW, still with a lovely 15-second period, and the energy is solid at 518 (moderate energy). That combo is rare magic, and Tamarindo is going to be as smooth as silk. Expect clean, peeling walls on the outgoing tide. This is the session you don't want to miss.
The following week shows a consistent pulse of SW groundswell. Monday, August 10th morning offers a clean 3 ft with an offshore ENE breeze at 12 mph. Not a standout, but a solid, fun option. Tuesday, August 11th morning repeats the formula: 3 ft and gentle offshore winds. Consistent, easy paddling, and clean faces.
Looking further out, Friday, August 14th afternoon brings a more powerful pulse. We're looking at 4 ft of SW swell with an 18-second period, blowing offshore from the ENE. The combined energy jumps to a strong 1305. This is pitch-perfect for experienced surfers—long, powerful lines, but at that size and with that period, it'll be too much for beginners. The river mouth will channel it well, but the rip will be working.
The Saturday, August 15th and Sunday, August 16th mornings keep the energy high, with 5 ft and 4 ft of SW swell respectively, and clean conditions. By Thursday, August 20th, we see another solid push to 5 ft with a 17-second period and a strong energy reading of 1199. That's a lot of water moving, and with NE cross-off winds, the sets will be screaming down the point. It's a long-range promise, so keep your fingers crossed, but the potential is big for the experienced crew.
Overall, the next two weeks have plenty of rideable waves. The absolute standout is Saturday afternoon, August 8th, for the glassy, clean perfection. For the bigger-wave hunters, the afternoons of Friday, August 14th, and Thursday, August 20th, look the most promising, but remember, that's a week or more out, so stay tuned.
Rusty, signing off.
Short Range ForecastHeavy rain (total 23mm), heaviest during Wed night. Warm (max 31°C on Fri morning, min 24°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 32°C on Sun morning, min 25°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||
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 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 18 | SW 17 | SW 16 | SSW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SSW 20 | SW 14 | SW 18 | SW 13 |
Wave Graph | |||||||||||||||||||||
69 | 68 | 74 | 125 | 64 | 212 | 209 | 305 | 376 | 441 | 509 | 309 | 401 | 384 | 238 | 199 | 390 | 253 | 264 | 455 | 212 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | off | cross-off | cross-on | off | cross-off | cross-on | off | cross-off | glassy | cross-off | cross-off | cross-off | off | off | cross-on | off | off | cross-on | cross-off |
High Tide | 7:16PM2.04m | 7:43AM2.32m | 8:10PM1.96m | 8:39AM2.27m | 9:15PM1.90m | 9:45AM2.25m | 10:28PM1.90m | 10:57AM2.26m | 11:42PM1.98m | 12:07PM2.32m | 00:50AM2.13m | 1:10PM2.41m | 1:49AM2.30m | ||||||||
Low Tide | 1:15PM0.46m | 1:19AM0.46m | 2:09PM0.49m | 2:13AM0.52m | 3:11PM0.52m | 3:17AM0.57m | 4:21PM0.51m | 4:30AM0.58m | 5:32PM0.44m | 5:45AM0.52m | 6:37PM0.33m | 6:54AM0.42m | 7:35PM0.20m | ||||||||
5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | |
— | 6:05 | — | — | 6:05 | — | — | 6:04 | — | — | 6:04 | — | — | 6:04 | — | — | 6:02 | — | — | 6:02 | — | |
mm | — | 4 | 9 | 2 | 5 | 1 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | 2 | — |
Temp °C | 29 | 29 | 27 | 27 | 27 | 25 | 31 | 29 | 27 | 31 | 31 | 27 | 32 | 32 | 27 | 32 | 29 | 27 | 31 | 29 | 27 |
Feels °C | 31 | 32 | 30 | 30 | 30 | 27 | 34 | 31 | 30 | 33 | 35 | 27 | 32 | 35 | 28 | 35 | 30 | 30 | 34 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | S 8 | S 8 | SW 13 | S 10 | S 9 | SW 16 | SSW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 15 | SW 14 | SW 14 | SW 13 |
63 | 84 | 84 | 64 | 88 | 212 | 125 | 79 | 376 | 441 | 509 | 309 | 401 | 384 | 238 | 199 | 390 | 171 | 264 | 308 | 212 | |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 14 | SW 14 | SW 11 | S 8 | SW 13 | SW 17 | SW 12 | SW 12 | S 9 | SW 11 | S 11 | S 8 | SW 16 | SW 16 | N 5 | SW 12 | SW 18 | SW 18 | SW 18 |
69 | 68 | 74 | 125 | 64 | 58 | 168 | 305 | 144 | 169 | 52 | 101 | 55 | 34 | 124 | 125 | 13 | 87 | 159 | 455 | 152 | |
Swell 3 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 11 | NNE 4 | SW 14 | SW 18 | SSW 18 | SW 12 | S 9 | S 8 | WSW 6 | S 9 | SSW 18 | SSW 18 | S 10 | S 10 | S 9 | SSW 20 | N 5 | S 9 | S 9 |
54 | 55 | 20 | 6 | 46 | 159 | 209 | 151 | 76 | 69 | 3 | 39 | 30 | 31 | 30 | 30 | 27 | 253 | 11 | 37 | 36 | |
Wind waves Height (m) Direction Period (s) | NNE 3 | — | NNE 4 | SSE 4 | — | — | — | — | — | NNE 4 | NNW 4 | NNE 5 | NNE 3 | N 5 | NNE 5 | NNE 3 | — | NNE 5 | — | — | N 5 |
1 | — | 7 | 6 | — | — | — | — | — | 7 | 6 | 24 | 11 | 12 | 18 | 6 | — | 7 | — | — | 7 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 8 | 0 | 0 | 8 | 0 | 0 | 8 | 0 | 12 | 0 | 15 | 18 | 0 | 0 | 0 | 8 | 0 | 0 | 8 | 0 |
Best forecast wave conditions in Guanacaste | |||||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||||
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Information about the Tamarindo Surf forecast
The above surf forecast table for Tamarindo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Tamarindo can be found by selecting the local surf guide option on the grey menu. Our Tamarindo 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 (Tamarindo) 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 Tamarindo 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.
Tamarindo is 46 km (29 miles) from Nicoya. If you plan a holiday in Guanacaste, look for hotels and other accommodation in Nicoya. Nicoya has rooms for a wide range of budgets as well as car hire and transport links.











