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Damas Rivermouth surfForecast / Golfo de Nicoya / Costa Rica

information circle12 Day Weather and Surf, issued 11 pm Friday 15 Aug 2025 CST
Forecast update in hr  min  s Forecast update imminent
Damas Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Damas Rivermouth sea temperature is
29.4° C
 (Which is 1.0°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Damas Rivermouth this week:

The surf forecast for Damas Rivermouth over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 16) at 6AM. The primary swell is predicted to be 0.5m and 13s period with a secondary swell of 0.6m and 12s. Another secondary swell of 0.6m and 6s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Damas Rivermouth in the next 12 days are 1.2m 11s and forecast to arrive on Friday (Aug 22) at 6PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 6s period and expected on Thursday (Aug 21) at 12AM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Sat 16th Aug)2ft (0.6m) 12s
Best Surf12AM (Tue 19th Aug)2.5ft (0.7m) 16s
Most Powerful 6PM (Fri 22nd Aug)4ft (1.2m) 11s

Table - best surf conditions forecast for Damas Rivermouth over the next 12 days.

Hourly12 Days
Golfo de Nicoya Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 

Short Range Forecast Heavy rain (total 23mm), heaviest during Fri night. Warm (max 28°C on Sat morning, min 24°C on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 19mm), heaviest on Wed afternoon. Warm (max 28°C on Tue morning, min 25°C on Mon night). Wind will be generally light.

Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Fri
22
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
2
1
1
1
2
1
1
2
0
3
2
1
2
2
2
2
2
1
2
3
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.6
SW
0.5
SSW
0.7
SSW
0.5
SSW
0.5
SSW
0.4
SSW
0.4
SSW
0.8
SSW
0.5
SSW
0.7
SW
0.6
SW
0.8
SW
0.9
SSW
0.8
SSW
0.6
SW
0.9
SSW
1
SSW
0.7
SSW
0.6
SW
0.9
SSW
1.2
SSW
Period(s) (?)12131312121616151416161512111510815181410
Wave
Graph
(?)Metric surfscale
Energy (?)256171238198204212206495172509344432387336333330268441439752704
Wind
(km/h)
5
ENE
5
SW
10
WSW
5
NNE
5
SSE
10
SSE
10
E
5
SSE
5
S
5
N
5
SSW
10
S
5
ENE
5
S
5
SSW
5
NW
5
S
10
S
5
NE
5
SSW
10
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglasscross-
on		glassglassoncrossglassonglassglassonglassglassglasscross-
off		glassonglassglasson
High Tide
/ height (m)
7:35AM
2.64
8:07PM
2.26
8:34AM
2.50
9:14PM
2.15
9:42AM
2.40
10:31PM
2.10
10:57AM
2.36
11:47PM
2.15
12:08PM
2.39
12:53AM
2.27
1:10PM
2.46
1:48AM
2.41
2:02PM
2.55
Low Tide
/ height (m)
1:14AM
0.41
2:01PM
0.42
2:11AM
0.55
3:05PM
0.52
3:19AM
0.66
4:17PM
0.57
4:35AM
0.71
5:30PM
0.54
5:50AM
0.69
6:36PM
0.46
6:56AM
0.60
7:32PM
0.36
7:52AM
0.49
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Fri
22
Sunrise-5:28--5:28--5:28--5:28--5:28--5:28--5:28-
Sunset--5:53--5:52--5:52--5:52--5:52--5:52--5:51
thunderstorm clearthunderstorm thunderstorm part cloudthunderstorm thunderstorm part cloudthunderstorm thunderstorm part cloudpart cloudthunderstorm thunderstorm mod rainthunderstorm part cloudthunderstorm thunderstorm part cloudthunderstorm
Rain (mm)
5-23-45-43--3182-21-5
Temp. °C262828262827252727252828262827252828262828
Feels °C (?)303131303130283131293130303231293031303232
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Golfo de Nicoya

  1. weather stationWind Update Continuing clean conditions at Damas Rivermouth (calm at San Jose 57 km from Damas Rivermouth). 0.6m 10s swell from the SSW with a 0.4m 14s groundswell, also from the SSW. 2 swells combining to make bigger set waves.

    1 hour 25 minutes ago Damas Rivermouth
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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Damas Rivermouth surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Damas Rivermouth at:
surf-forecast.com

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 12 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.

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