Damas Rivermouth surfForecast / Golfo de Nicoya / Costa Rica

information circle48hr Weather and Surf, issued 11 pm Thursday 21 May 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
30.6° C
(Which is 1.8°C warmer than normal for this time of year)

How big are the waves at Damas Rivermouth today?

The current surf forecast for Damas Rivermouth at 5AM is: 0.6m 15s primary swell from a Southwest direction and 0.6m 8s secondary swell from a South direction (forecast issued at 11:00pm May 21). The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (CST) & DateWave HeightWave Period
Morning (22 May)1.5ft (0.4m)14s
Afternoon (22 May)1.5ft (0.4m)15s
Evening (22 May)2ft (0.6m)14s

Table - waves today at Damas Rivermouth. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 20mm), heaviest during Thu night. Warm (max 30°C on Fri morning, min 27°C on Thu night). Wind will be generally light.

Friday
22
Saturday
23
Sunday
24
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
Rating
(10 max)
2
2
2
2
1
0
1
2
2
2
2
1
1
0
2
2
2
2
2
2
2
0
1
2
Swell
Height Map
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.6
SW
15
0.6
SW
15
0.6
SW
15
0.6
SW
15
0.4
SW
15
0.4
SW
15
0.4
SSW
15
0.6
SW
14
0.6
SW
14
0.6
SW
14
0.6
SW
14
0.7
S
9
0.7
S
9
0.8
S
8
0.6
SW
15
0.6
SW
16
0.4
SW
16
0.4
SW
16
0.4
SW
16
0.6
SW
17
0.6
SW
18
0.5
SW
18
0.6
SW
18
0.7
SW
15
Wave Graph
Metric surfscale
Energy kJ
136
136
134
134
72
71
86
119
151
121
116
74
73
90
141
157
93
93
94
227
272
166
201
218
Wind (km/h)
5
E
0
WNW
5
NNE
5
NE
5
SSE
10
S
10
SSW
0
SE
0
NNE
0
N
5
NNE
5
NE
5
S
10
SSW
5
SSW
5
N
5
ENE
5
NNE
5
N
5
NNE
5
SSW
10
SSW
10
SSW
5
S
glassy
glassy
glassy
glassy
glassy
on
on
glassy
glassy
glassy
cross-off
glassy
glassy
cross-on
glassy
glassy
glassy
cross-off
off
glassy
glassy
on
on
glassy
High Tide
7:01AM2.56m
7:18PM2.47m
8:01AM2.48m
8:21PM2.31m
9:03AM2.42m
Low Tide
00:40AM0.19m
1:10PM0.48m
1:38AM0.35m
2:15PM0.60m
2:38AM0.49m
3:23PM0.66m
thunderstorm
part cloud
thunderstorm
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
part cloud
cloud
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
clear
clear
clear
part cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:16
5:16
5:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:51
5:52
5:52
3
1
1
2
2
1
1
1
3
1
3
1
Temp °C
28
28
27
27
29
30
29
28
28
28
27
27
29
30
28
28
27
27
27
27
29
30
30
29
33
34
31
31
33
33
33
33
33
34
32
32
34
33
32
34
32
32
31
31
33
33
34
34
Swell 1
Height (m)
Direction
Period (s)
0.6
SW
15
0.6
SW
15
0.6
SW
15
0.6
S
8
0.6
S
8
0.6
S
8
0.6
S
8
0.7
S
9
0.7
S
9
0.7
S
9
0.7
S
9
0.7
S
9
0.7
S
9
0.8
S
8
0.8
S
8
0.7
S
8
0.7
S
8
0.7
S
8
0.7
S
8
0.7
S
8
0.7
S
8
0.7
S
8
0.7
S
9
0.7
SW
15
Energy kJ
136
136
134
45
46
46
51
85
83
78
76
74
73
90
92
69
69
71
71
71
71
68
73
218
Swell 2
Height (m)
Direction
Period (s)
0.4
SSW
16
0.4
SSW
16
0.5
S
8
0.6
SW
15
0.4
SW
14
0.4
SW
14
0.4
SW
14
0.6
SW
14
0.6
SW
14
0.6
SW
14
0.6
SW
14
0.4
SW
14
0.4
SW
13
0.4
SW
13
0.6
SW
15
0.6
SW
16
0.4
SW
14
0.4
SW
13
0.4
SW
16
0.6
SW
17
0.6
SW
18
0.5
SW
18
0.6
SW
18
0.6
S
8
Energy kJ
102
94
29
134
72
71
71
119
151
121
116
64
63
63
141
157
64
60
94
227
272
166
201
49
Swell 3
Height (m)
Direction
Period (s)
0.3
S
8
0.4
SSW
8
0.4
SSW
15
0.4
SSW
15
0.4
SW
15
0.4
SW
15
0.4
SSW
15
0.2
SSW
15
0.2
S
16
0.4
SSW
14
0.4
SW
14
0.4
SW
14
0.4
SW
15
0.2
SSW
14
0.2
SSW
21
0.2
SSW
14
0.4
SW
16
0.4
SW
16
0.4
SW
13
0.3
SSW
13
0.4
SW
13
0.5
SW
15
0.4
SW
14
0.2
SSW
15
Energy kJ
10
22
88
89
57
56
86
22
20
79
53
53
54
20
43
18
93
93
63
33
44
113
74
22
Wind waves
Height (m)
Direction
Period (s)
Energy kJ
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
1
1
1
2
2
2
2
1
1
2
2
2
2
2
2
2
2
3
2
2
Distance (km)
0
0
0
0
0
91
40
0
0
0
0
0
0
179
0
0
0
0
0
0
0
179
40
0
Best forecast wave conditions in Golfo de Nicoya
Rating
(10 max)
2
2
2
2
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Best forecast wave conditions in Costa Rica
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
2
Header Global
Rating
(10 max)
5
7
7
7
6
7
6
5
5
6
7
8
7
6
5
5
5
5
5
5
5
5
5
5
  • 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

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