Damas Rivermouth surfForecast / Golfo de Nicoya / Costa Rica

information circle16 Day Weather and Surf, issued 5 am Monday 13 Apr 2026 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
30.4° C
(Which is 1.1°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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Apr 13) at 9PM. The primary swell is predicted to be 0.9m and 15s period with a secondary swell of 0.5m and 9s. 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 1.4m 18s and forecast to arrive on Monday (Apr 20) at 12PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Mon 13th Apr)3ft (0.9m) 15s
Best Surf 3AM (Thu 16th Apr)4.5ft (1.4m) 16s
Most Powerful12PM (Mon 20th Apr)4.5ft (1.4m) 18s

Table - best surf conditions forecast for Damas Rivermouth over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 13mm), heaviest on Wed night. Warm (max 30°C on Mon afternoon, min 25°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 12mm), heaviest on Thu night. Warm (max 30°C on Fri morning, min 25°C on Fri night). Wind will be generally light.

Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
2
0
2
2
0
2
3
2
3
3
2
3
2
1
3
3
2
3
2
1
3
Swell
Height Map
Wave Height (m) & direction (?)
0.9
SSW
0.9
SSW
0.9
SSW
0.9
SSW
0.9
SSW
0.8
SSW
0.6
SSW
1.3
SSW
1.3
SSW
1.5
SSW
1.5
SSW
1.5
SSW
1.3
SSW
1.2
SSW
1.1
SSW
0.9
SSW
1.4
SSW
1.3
SSW
1.3
SSW
1.3
SSW
1.3
SSW
Period(s) (?)141415161515191817161615141414171615141414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)299294372382334275289103892811091082936687542427465929696651633615
Wind
(km/h)
5
SSW
10
SSE
5
NNE
5
S
10
S
5
NNE
5
S
10
S
5
N
10
SSE
10
SSE
5
ENE
5
SE
10
S
5
NE
5
SSW
10
SSW
5
NNE
5
WSW
10
SSW
5
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassoncross-
off
glassonglassglassonglasscross-
on
oncross-
off
cross-
on
oncross-
off
glassonglasscross-
on
onglass
High Tide
/ height (m)
Low Tide
/ height (m)
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Sunrise5:28--5:28--5:26--5:26--5:26--5:26--5:24--
Sunset-5:46--5:46--5:46--5:46--5:46--5:46--5:46-
part cloud
rain showers
thunderstorm
clear
part cloud
thunderstorm
clear
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
clear
thunderstorm
clear
clear
clear
rain showers
clear
clear
clear
Rain (mm)
-21--2-26127-1---1---
Temp. °C293028293027293028292927303027292927292927
Feels °C (?)313333313331313232303130323231323131333131
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Quick surf report for Damas Rivermouth:

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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.

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