Surf Forecasts:
Damas Rivermouth surf forecast from 14 Aug 2026:
- Best quality surf: Friday 14 Aug, 9PM (local time) - 3.5ft (1.1m), 18s period, SW swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 3AM (local time) - 4.5ft (1.3m), 16s period, SW swell with 854 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 9PM (local time) - 2ft (0.6m), 16s period with SW swell.
Best Forecast Surf Conditions for Damas Rivermouth this week:
The surf forecast for Damas Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 13) at 9PM. The primary swell is predicted to be 0.6m and 16s period with a secondary swell of 0.7m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Damas Rivermouth in the next 16 days are 1.3m 16s and forecast to arrive on Saturday (Aug 15) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 13th Aug) | 2ft (0.6m) 16s |
| Best Surf | 9PM (Fri 14th Aug) | 3.5ft (1.1m) 18s |
| Most Powerful | 3AM (Sat 15th Aug) | 4.5ft (1.3m) 16s |
Table - best surf conditions forecast for Damas Rivermouth over the next 16 days.
Short Range ForecastHeavy rain (total 45mm), heaviest during Sat afternoon. Warm (max 29°C on Thu afternoon, min 25°C on Sat afternoon). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 36mm), heaviest during Sun night. Warm (max 29°C on Mon morning, min 24°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||
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 12 | SW 20 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 15 | SW 14 | SW 14 | SW 14 | SW 16 | SW 16 | SW 14 | SW 15 | SW 14 | SSW 9 |
Wave Graph | ||||||||||||||||||||
77 | 239 | 630 | 522 | 751 | 813 | 719 | 773 | 535 | 466 | 410 | 327 | 327 | 313 | 163 | 153 | 251 | 255 | 164 | 166 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | glassy | cross-on | glassy | glassy | on | glassy | glassy | cross | glassy | cross-off | cross-on | glassy | glassy | cross-on | glassy | glassy | cross-on | cross-off |
High Tide | 3:02PM2.80m | 3:33AM2.85m | 3:49PM2.81m | 4:18AM2.91m | 4:35PM2.76m | 5:00AM2.89m | 5:18PM2.66m | 5:41AM2.79m | 6:01PM2.52m | 6:22AM2.65m | 6:44PM2.35m | 7:04AM2.48m | 7:30PM2.17m | |||||||
Low Tide | 9:17PM0.02m | 9:42AM0.15m | 10:01PM0.01m | 10:29AM0.14m | 10:44PM0.07m | 11:13AM0.18m | 11:26PM0.18m | 11:56AM0.27m | 00:07AM0.33m | 12:40PM0.40m | 00:48AM0.50m | 1:25PM0.54m | 1:32AM0.67m | |||||||
— | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | |
5:54 | — | — | 5:54 | — | — | 5:53 | — | — | 5:53 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | |
mm | 2 | — | — | 3 | — | — | 36 | 4 | — | 13 | 16 | 1 | 1 | — | — | 2 | 3 | — | 5 | 10 |
Temp °C | 29 | 28 | 29 | 29 | 27 | 29 | 28 | 26 | 28 | 27 | 25 | 29 | 29 | 27 | 28 | 28 | 27 | 29 | 28 | 26 |
Feels °C | 32 | 33 | 33 | 32 | 31 | 32 | 31 | 30 | 31 | 31 | 30 | 32 | 32 | 32 | 33 | 32 | 32 | 33 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 8 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 15 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | S 7 | SSW 8 | SSW 8 | SSW 8 | SSW 9 |
51 | 61 | 630 | 522 | 751 | 813 | 719 | 773 | 535 | 466 | 410 | 89 | 82 | 79 | 82 | 103 | 120 | 130 | 144 | 166 | |
Swell 2 Height (m) Direction Period (s) | S 12 | SW 20 | S 11 | S 12 | S 12 | S 12 | S 12 | SSW 6 | SSW 6 | SSW 11 | SSW 6 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 15 | SW 14 | SW 14 |
77 | 239 | 205 | 174 | 180 | 137 | 134 | 87 | 80 | 210 | 66 | 327 | 327 | 313 | 140 | 108 | 251 | 255 | 164 | 114 | |
Swell 3 Height (m) Direction Period (s) | SW 14 | SW 16 | SW 11 | SW 15 | SSW 12 | SW 10 | — | S 11 | S 11 | SSW 11 | S 11 | S 11 | S 10 | S 10 | SW 16 | SW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 |
50 | 159 | 5 | 218 | 27 | 4 | — | 63 | 37 | 39 | 36 | 20 | 18 | 8 | 163 | 153 | 51 | 21 | 42 | 21 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 144 | 0 | 0 | 158 | 0 | 12 | 34 | 0 | 0 | 34 | 0 | 0 | 18 | 0 | 0 | 40 | 0 | 0 | 0 |
Best forecast wave conditions in Golfo de Nicoya | ||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the Damas Rivermouth Surf forecast
The above surf forecast table for Damas Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Damas Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Damas Rivermouth 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 (Damas Rivermouth) 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 Damas Rivermouth 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 Damas Rivermouth, camping, hotels and holiday cottages in Golfo de Nicoya, consider staying in Quepos which is 20 km (12 miles) away. Other places in and around Golfo de Nicoya where you can find information about places to rent, and car hire include Tejar which is 30 km (19 miles) away, San Rafael Abajo, Aserri and San Rafael Arriba.











