Roca Loca surfForecast / Golfo de Nicoya / Costa Rica

information circle48hr Weather and Surf, issued 5 am Monday 18 May 2026 CST
Forecast update in hr  min  s Forecast update imminent
Roca Loca surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Roca Loca sea temperature is
30.4° C
(Which is 1.4°C warmer than normal for this time of year)

How big are the waves at Roca Loca today?

The current surf forecast for Roca Loca at 1PM is: 0.7m 13s primary swell from a South-southwest direction and 0.6m 7s secondary swell from a South direction (forecast issued at 05:00am May 18). The wind direction is predicted to be cross-onshore.

Time (CST) & DateWave HeightWave Period
Morning (18 May)2.5ft (0.7m)13s
Afternoon (18 May)2.5ft (0.7m)13s
Evening (18 May)2ft (0.6m)13s

Table - waves today at Roca Loca. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 21mm), heaviest during Wed afternoon. Warm (max 30°C on Mon afternoon, min 26°C on Wed afternoon). Wind will be generally light.

Monday
18
Tuesday
19
Wednesday
20
Thu
21
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
9 PM
12 AM
Rating
(10 max)
2
1
1
0
0
1
1
1
2
1
1
0
0
1
2
2
2
2
1
0
0
0
2
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.7
SW
13
0.7
SW
13
0.7
SW
13
0.7
SSW
13
0.7
SSW
13
0.7
SSW
13
0.6
SSW
13
0.6
SSW
13
0.4
SSW
19
0.4
SSW
18
0.4
SSW
18
0.4
SSW
15
0.4
SSW
15
0.6
SW
17
0.7
SW
16
0.7
SW
16
0.8
SSW
16
0.6
SSW
14
0.6
SW
16
0.6
SW
16
0.9
SW
16
0.9
SW
16
0.7
SW
16
0.6
SW
16
Wave Graph
Metric surfscale
Energy kJ
178
178
175
154
154
151
114
111
139
128
124
86
86
241
268
264
330
131
161
163
371
367
251
193
Wind (km/h)
10
NNE
10
NNE
0
NE
10
S
10
SSE
10
SSE
5
ESE
5
NNE
5
NE
5
NE
0
SSE
10
SSW
10
SSW
10
SSW
0
WNW
5
N
5
N
10
NNE
5
N
15
S
15
S
25
E
15
E
5
WNW
off
off
glassy
cross-on
cross-on
cross-on
glassy
glassy
off
off
glassy
cross-on
cross-on
on
glassy
cross-off
cross-off
off
glassy
cross-on
cross-on
cross-off
cross-off
cross
High Tide
3:33AM2.73m
3:47PM3.03m
4:24AM2.76m
4:38PM2.97m
5:16AM2.74m
5:31PM2.85m
Low Tide
9:33AM0.16m
10:10PM-0.09m
10:26AM0.17m
11:01PM-0.05m
11:19AM0.24m
11:53PM0.04m
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
thunderstorm
thunderstorm
clear
clear
clear
clear
part cloud
thunderstorm
thunderstorm
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:16
5:16
5:16
5:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:52
5:52
5:52
5:52
3
1
4
13
Temp °C
27
27
29
29
30
29
29
28
27
27
29
29
30
29
29
28
28
27
29
29
29
26
26
27
30
30
33
32
33
33
34
33
31
30
34
32
34
33
35
32
32
30
34
32
32
27
28
30
Swell 1
Height (m)
Direction
Period (s)
0.7
SW
13
0.7
SW
13
0.7
SW
13
0.7
SSW
13
0.7
SSW
13
0.7
SSW
13
0.6
SSW
13
0.6
SSW
13
0.6
SSW
12
0.6
SSW
12
0.6
SSW
12
0.5
S
8
0.5
S
7
0.6
SW
17
0.7
SW
16
0.7
SW
16
0.8
SSW
16
0.6
SSW
14
0.6
SW
16
0.5
SW
13
0.9
SW
16
0.9
SW
16
0.7
SW
16
0.6
SW
16
Energy kJ
178
178
175
154
154
151
114
111
104
99
99
28
27
241
268
264
330
131
161
85
371
367
251
193
Swell 2
Height (m)
Direction
Period (s)
0.5
S
6
0.5
S
8
0.6
S
8
0.6
S
7
0.6
S
7
0.6
S
7
0.6
S
7
0.5
S
7
0.5
S
7
0.5
S
8
0.5
S
8
0.4
SSW
12
0.5
SW
12
0.5
SW
12
0.5
S
7
0.4
SSW
12
0.4
S
7
0.5
SW
16
0.5
SW
13
0.6
SW
16
0.4
S
7
0.4
S
7
0.5
SW
13
0.4
SW
12
Energy kJ
17
28
40
39
39
39
38
26
27
28
29
56
72
72
26
57
15
127
83
163
15
14
78
36
Swell 3
Height (m)
Direction
Period (s)
0.4
SW
18
0.2
SSW
18
0.2
SSW
20
0.4
SW
17
0.4
SW
16
0.4
SSW
16
0.4
SW
17
0.4
SW
18
0.4
SSW
19
0.4
SSW
18
0.4
SSW
18
0.4
SSW
15
0.4
SSW
15
0.5
S
7
0.4
SSW
12
0.4
S
7
0.4
SW
12
0.4
S
7
0.4
S
7
0.4
S
7
0.2
S
12
0.2
S
12
0.4
S
7
0.4
SW
19
Energy kJ
83
32
39
73
69
105
106
108
139
128
124
86
86
27
57
16
34
15
15
15
11
11
14
89
Wind waves
Height (m)
Direction
Period (s)
Energy kJ
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
1
1
2
2
2
2
2
2
2
2
2
2
1
Distance (km)
0
0
0
57
0
0
0
0
0
0
0
57
75
35
0
0
0
0
0
144
95
36
0
16
Best forecast wave conditions in Golfo de Nicoya
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
1
1
2
2
2
2
2
2
2
2
2
1
Best forecast wave conditions in Costa Rica
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
2
2
2
2
2
3
2
2
Header Global
Rating
(10 max)
4
4
4
5
4
4
4
4
4
4
4
4
4
4
5
5
4
4
4
5
5
5
4
5
  • 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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