Surf Break

Lat Long: 9.49° N 84.33° W

Damas Rivermouth Surf Forecast and Surf Report

Issued: 11 am 23 Oct 2026 (local time)

Forecast update in  hr  min

Today's Damas Rivermouth sea temperature is
30.4°C
2.7° 

Damas Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Damas Rivermouth surf forecast from 23 Oct 2026:

  • Best quality surf: Friday 23 Oct, 9PM (local time) - 3.5ft (1.1m), 14s period, SSW swell with glassy winds.
  • Most powerful swell: Saturday 24 Oct, 9AM (local time) - 4.5ft (1.3m), 16s period, SSW swell with 827 kJ wave energy.
  • Next surfable swell (1★+): Friday 23 Oct, 9PM (local time) - 3.5ft (1.1m), 14s period with SSW 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 Friday (Oct 23) at 9PM. The primary swell is predicted to be 1.1m and 14s period with a secondary swell of 0.8m and 18s. 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 (Oct 24) at 9AM. 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 (Fri 23rd Oct)3.5ft (1.1m) 14s
Best Surf 9PM (Fri 23rd Oct)3.5ft (1.1m) 14s
Most Powerful 9AM (Sat 24th Oct)4.5ft (1.3m) 16s

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


Short Range Forecast

Heavy rain (total 35mm), heaviest during Fri afternoon. Warm (max 29°C on Fri morning, min 25°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 18mm), heaviest on Mon night. Warm (max 29°C on Wed morning, min 25°C on Mon night). Wind will be generally light.

Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
3
2
2
3
3
1
1
1
0
1
1
0
2
1
1
2
2
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SSW
16
0.8
SSW
18
1.2
SSW
15
1.3
SSW
16
1.2
SSW
15
1.2
SSW
14
1.2
SSW
14
0.8
SSW
13
0.8
SSW
13
0.8
SSW
13
0.7
SSW
14
1.4
SSW
8
1.1
SSW
8
1
SSW
9
0.6
SW
17
0.6
SW
16
0.6
SW
16
0.7
SW
15
0.6
SW
15
0.8
SW
17
0.9
SW
16
Wave Graph
Metric surfscale
Energy kJ
596
394
573
827
596
557
549
198
195
195
180
226
147
189
241
165
203
233
178
350
421
Wind (km/h)
5
SE
10
SSE
5
ENE
5
SSE
5
S
5
NE
5
S
10
SE
5
E
5
SSE
10
SE
10
E
10
SE
15
SE
5
ENE
5
S
10
SSE
5
NNE
5
SSE
10
S
5
NE
Wind State
cross-on
cross-on
cross-off
on
on
cross-off
glassy
cross-on
cross
cross-on
cross-on
cross
cross-on
cross-on
cross-off
on
on
glassy
glassy
on
glassy
High Tide
12:29PM2.19m
00:47AM2.46m
1:14PM2.32m
1:28AM2.64m
1:56PM2.46m
2:09AM2.78m
2:38PM2.57m
2:50AM2.89m
3:21PM2.64m
3:33AM2.93m
4:05PM2.67m
4:19AM2.91m
4:52PM2.64m
Low Tide
6:31PM0.64m
7:07AM0.48m
7:14PM0.51m
7:48AM0.29m
7:55PM0.38m
8:29AM0.13m
8:37PM0.27m
9:11AM0.03m
9:21PM0.20m
9:54AM-0.02m
10:06PM0.19m
10:40AM0.00m
10:54PM0.24m
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
thunderstorm
clear
part cloud
thunderstorm
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:24
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—
5:26
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5:26
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—
5:26
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5:26
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5:26
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5:26
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
5:16
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—
5:15
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5:15
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5:15
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5:15
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5:15
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5:15
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 mm
—
5
3
—
6
8
2
4
7
2
3
11
—
—
1
—
—
1
—
—
3
Temp °C
29
29
27
29
28
27
28
28
27
28
28
26
28
28
26
29
28
27
29
28
27
Feels °C
32
33
32
32
32
32
32
31
32
30
31
29
30
31
30
32
31
31
32
31
32
  • 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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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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