
Surf Forecasts:
Dona Ana surf forecast from 7 Aug 2026:
- Best quality surf: Friday 7 Aug, 9PM (local time) - 1.5ft (0.5m), 16s period, SSW swell with glassy winds.
- Most powerful swell: Friday 14 Aug, 12PM (local time) - 2.5ft (0.7m), 18s period, SW swell with 319 kJ wave energy.
- Next surfable swell (1★+): Friday 7 Aug, 9PM (local time) - 1.5ft (0.5m), 16s period with SSW swell.
Best Forecast Surf Conditions for Dona Ana this week:
The surf forecast for Dona Ana over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 07) at 9PM. The primary swell is predicted to be 0.5m and 16s period with a secondary swell of 0.6m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Dona Ana in the next 16 days are 0.7m 18s and forecast to arrive on Friday (Aug 14) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 7th Aug) | 1.5ft (0.5m) 16s |
| Best Surf | 9PM (Fri 7th Aug) | 1.5ft (0.5m) 16s |
| Most Powerful | 12PM (Fri 14th Aug) | 2.5ft (0.7m) 18s |
Table - best surf conditions forecast for Dona Ana over the next 16 days.
The Lowdown
Alright surf is on the menu for Dona Ana, but it’s not going to be a huge week. We’ve got a run of smaller, clean morning windows with the afternoons mostly getting chopped up by the southerly breeze. The good news is the mornings are looking glassy for the most part.
Let’s break it down. The water’s sitting at 86° at the start of the run, which is a touch warmer than normal for this time of year, so you can leave the booties at home.
Our first real chance to get wet is Friday morning, August 7th. It’s tiny, only 2ft, but it’s glassy and out of the west-northwest. The energy is weak, sitting at 227, but clean. It’s a point break, and with that 10-second period, it’ll be offering up some fun little runners. The late morning will see a cross-shore breeze pick up and it’ll get a bit bumpy.
Saturday morning, August 8th, is very similar. 2ft of swell, glassy again, but the period jumps to 16 seconds. That’s proper groundswell energy, even if the size is small. It’s going to be clean and lined up, but the long period might make it break a bit straight on the beach sections. The point should still be a good option. Energy’s still weak at 237.
The Sunday through Tuesday crew is pretty ordinary. Small, but clean in the mornings. It’s surfable, but you’ll be fighting for the odd one out there. Nothing really to get excited about.
Now, here’s where things start to perk up. Wednesday morning, August 12th, the energy jumps to a moderate 437, with 2ft of swell from the SSW. Still glassy in the morning. That’s a better pulse of energy. That’s the standout. It’ll have a bit more push and shape. But the wind will swing around and kill it by the afternoon.
Thursday the 13th is a step back, but Friday the 14th backs up 394 energy and 2ft of swell, also from the SW. Good morning again.
The real gem of this whole stretch is Saturday morning, August 15th. The energy jumps to a strong 512, the swell is 3ft from the SW, and it’s dead glassy. That’s the best combination of size and clean conditions we’re going to see. The swell period is a solid 16 seconds, so it’ll have some proper weight to it. This is the one to circle on the calendar.
After that, we settle back into the similar rhythm of small, clean mornings and choppy afternoons through the middle of next week. Sunday the 16th is okay with 333 energy, but the Saturday is the clear winner.
The following week, from the 18th onwards, sees the energy stay in the moderate range, hovering between 250 and 360, with waves in the 2ft to 3ft range. The mornings are consistently glassy, but the size just isn’t there. It’s a high-consistency spot, so there will always be waves, but we’re not looking at any big days. The wind will be the usual afternoon onshore make it a two-to-three hour window in the morning.
So, there you have it. A classic run of small, clean morning surf. If you’ve got a fish or a groveler, you’ll be in heaven. The standout is that Saturday morning, August 15th, with 3ft of glassy southwest swell. Everything else is just about being there at the right time.
Rusty out.
Short Range ForecastMostly dry. Warm (max 32°C on Sun morning, min 25°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Mon afternoon. Warm (max 31°C on Mon morning, min 25°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | |||||||||||||||
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) | S 10 | S 10 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 20 | SSW 14 | SSW 18 | S 17 | SSW 16 | S 16 | SSW 15 | S 14 | S 14 | SSW 20 |
Wave Graph | |||||||||||||||||||||
98 | 119 | 147 | 144 | 201 | 188 | 163 | 158 | 98 | 66 | 93 | 149 | 116 | 178 | 153 | 269 | 174 | 172 | 100 | 66 | 149 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross-off | glassy | cross | cross-off | glassy | cross-on | cross-off | glassy | cross | cross-off | glassy | cross-on | cross-off | glassy | cross | cross-off | glassy | cross-on | glassy |
High Tide | 9:07AM2.48m | 9:46PM2.11m | 10:14AM2.44m | 11:01PM2.11m | 11:27AM2.46m | 00:16AM2.21m | 12:38PM2.54m | 1:23AM2.38m | 1:42PM2.65m | 2:22AM2.57m | 2:38PM2.75m | 3:13AM2.75m | 3:30PM2.82m | ||||||||
Low Tide | 3:39PM0.57m | 3:48AM0.67m | 4:50PM0.56m | 5:03AM0.68m | 6:02PM0.48m | 6:18AM0.61m | 7:07PM0.36m | 7:26AM0.48m | 8:05PM0.21m | 8:26AM0.34m | 8:57PM0.09m | 9:20AM0.22m | 9:44PM0.02m | ||||||||
5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | |
— | 6:00 | — | — | 5:59 | — | — | 5:59 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:57 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 4 | — | — | 1 | — | — | 5 | — | — | 2 | — |
Temp °C | 31 | 30 | 27 | 31 | 31 | 26 | 32 | 31 | 27 | 31 | 29 | 26 | 30 | 30 | 27 | 30 | 29 | 27 | 30 | 30 | 27 |
Feels °C | 34 | 33 | 31 | 33 | 34 | 28 | 34 | 34 | 31 | 34 | 32 | 29 | 31 | 32 | 31 | 33 | 31 | 32 | 33 | 33 | 32 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | S 9 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | S 9 | SSW 14 | SSW 18 | S 9 | SSW 16 | S 10 | SSW 15 | S 8 | S 8 | S 8 |
98 | 96 | 59 | 144 | 201 | 188 | 163 | 158 | 98 | 66 | 93 | 41 | 116 | 178 | 41 | 269 | 65 | 172 | 58 | 60 | 60 | |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 17 | SSW 16 | S 9 | S 9 | S 9 | S 9 | S 10 | S 10 | S 10 | S 9 | SSW 12 | S 9 | S 9 | S 17 | S 9 | S 16 | S 9 | S 14 | SSW 12 | S 12 |
68 | 119 | 147 | 37 | 39 | 38 | 24 | 29 | 30 | 28 | 26 | 58 | 38 | 38 | 153 | 62 | 174 | 57 | 100 | 49 | 77 | |
Swell 3 Height (m) Direction Period (s) | SSW 18 | SSW 12 | SSW 12 | SSW 12 | SW 12 | S 11 | S 11 | SW 22 | SW 22 | SSW 16 | SSW 20 | SSW 20 | SSW 18 | SSW 11 | SW 14 | SW 13 | SW 16 | — | SW 15 | S 14 | SSW 20 |
61 | 61 | 57 | 56 | 67 | 2 | 2 | 18 | 18 | 51 | 39 | 149 | 33 | 25 | 46 | 106 | 66 | — | 57 | 66 | 149 | |
Wind waves Height (m) Direction Period (s) | — | SSW 2 | — | — | SW 2 | — | — | — | NW 5 | — | — | — | — | — | — | — | — | — | — | — | — |
— | 1 | — | — | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 55 | 0 | 0 | 119 | 0 | 0 | 4 | 0 | 0 | 119 | 0 | 0 | 153 | 0 | 0 | 125 | 0 | 0 | 198 | 0 |
Best forecast wave conditions in Golfo de Nicoya | |||||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||||
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Information about the Dona Ana Surf forecast
The above surf forecast table for Dona Ana provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Dona Ana can be found by selecting the local surf guide option on the grey menu. Our Dona Ana 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 (Dona Ana) 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 Dona Ana 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.
Dona Ana is 6 km (4 miles) from Chacarita. If you plan a holiday in Golfo de Nicoya, look for hotels and other accommodation in Chacarita. Chacarita has rooms for a wide range of budgets as well as car hire and transport links.











