Backwash surfForecast / Golfo Dulce / Costa Rica

information circle48hr Weather and Surf, issued 5 pm Saturday 09 May 2026 CST
Forecast update in hr  min  s Forecast update imminent
Backwash surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Backwash sea temperature is
29.7° C
(Which is slightly warmer than usual)

How big are the waves at Backwash today?

The current surf forecast for Backwash at 9PM is: 1.3m 18s primary swell from a South-southwest direction and 1.1m 13s secondary swell from a South-southwest direction (forecast issued at 05:00pm May 09). The wind direction is predicted to be offshore and the swell rating is 4.

Time (CST) & DateWave HeightWave Period
Morning (09 May)--
Afternoon (09 May)3.5ft (1.1m)18s
Evening (09 May)4.5ft (1.3m)18s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 13mm), heaviest on Tue morning. Warm (max 30°C on Sat afternoon, min 26°C on Sat night). Wind will be generally light.

Sat
9
Sunday
10
Monday
11
Tue
12
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
3 AM
6 AM
9 AM
12 PM
Rating
(10 max)
2
4
4
4
3
3
3
1
2
3
3
3
3
3
2
1
2
2
2
2
2
2
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)
1.1
SSW
18
1.3
SSW
18
1.3
SSW
18
1.3
SSW
18
1.3
SSW
18
1.3
SSW
17
1.3
SSW
17
1.3
SSW
16
1.1
SSW
16
1.1
SSW
16
1.2
SSW
16
1.2
SSW
16
1.1
SSW
16
1.1
SSW
16
1
SSW
16
0.9
SSW
16
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.8
SSW
15
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
Wave Graph
Metric surfscale
Energy kJ
759
1106
1106
1106
1093
1056
848
818
643
635
733
733
627
620
475
382
358
344
339
334
272
268
268
268
Wind (km/h)
15
WSW
10
WNW
10
WNW
10
NNW
5
N
5
NNE
0
N
10
SSW
15
SW
10
W
5
W
0
NNE
5
ENE
5
NE
0
NNE
10
SSW
15
WSW
10
WSW
5
WNW
5
NW
5
NNW
5
N
5
WSW
10
SW
cross-off
off
off
off
cross-off
cross-off
glassy
cross-on
cross
cross-off
glassy
glassy
glassy
glassy
glassy
cross
cross-off
cross-off
cross-off
off
cross-off
glassy
glassy
cross
High Tide
7:56PM2.25m
8:45AM2.30m
8:58PM2.21m
9:43AM2.37m
10:06PM2.23m
10:41AM2.50m
Low Tide
1:53PM1.06m
2:19AM0.87m
2:57PM1.07m
3:17AM0.90m
4:04PM0.99m
4:16AM0.87m
part cloud
thunderstorm
thunderstorm
part cloud
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
clear
thunderstorm
clear
clear
clear
part cloud
thunderstorm
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:15
5:15
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:43
5:43
5:44
5:44
1
1
1
1
1
1
1
2
3
1
Temp °C
30
28
27
27
26
26
28
29
30
28
28
27
26
26
28
29
29
28
28
27
26
26
28
29
33
32
31
31
30
31
33
32
33
32
33
32
31
31
34
32
31
31
32
31
30
30
32
32
Swell 1
Height (m)
Direction
Period (s)
1.1
SSW
18
1.3
SSW
18
1.3
SSW
18
1.3
SSW
18
1.3
SSW
18
1.3
SSW
17
1.3
SSW
17
1.3
SSW
16
1.1
SSW
16
1.1
SSW
16
1.2
SSW
16
1.2
SSW
16
1.1
SSW
16
1.1
SSW
16
1
SSW
16
0.9
SSW
16
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.9
SSW
15
0.8
SSW
15
0.8
SSW
10
0.8
SSW
11
0.8
SSW
11
Energy kJ
759
1106
1106
1106
1093
1056
848
818
643
635
733
733
627
620
475
382
358
344
339
334
272
144
150
150
Swell 2
Height (m)
Direction
Period (s)
1.1
SSW
13
1.1
SSW
13
1.1
SSW
13
1
SSW
13
0.8
SSW
12
0.9
SSW
12
0.9
SSW
12
0.9
SSW
12
0.9
SSW
12
0.9
SSW
13
0.7
SSW
12
0.6
SSW
11
0.6
SSW
11
0.6
SSW
11
0.8
SSW
12
0.8
SSW
12
0.8
SSW
11
0.8
SSW
11
0.8
SSW
10
0.8
SSW
10
0.8
SSW
10
0.8
SSW
14
0.8
SSW
14
0.8
SSW
14
Energy kJ
396
421
384
307
161
210
203
203
271
289
142
91
91
91
176
179
158
150
141
133
139
268
268
268
Swell 3
Height (m)
Direction
Period (s)
0.3
SSW
7
0.2
SSW
6
0.4
SSW
13
0.3
S
13
0.4
SW
11
0.4
SSW
12
0.4
SSW
12
0.4
SSW
12
0.1
W
13
0.1
W
14
0.1
S
21
0.1
W
9
0.1
SW
20
0.1
SW
20
0.1
SW
20
Energy kJ
10
4
57
32
30
52
47
45
3
4
8
2
16
15
15
Wind waves
Height (m)
Direction
Period (s)
Energy kJ
Nearest Offshore or Glassy
Rating
(10 max)
3
4
4
4
3
3
3
2
4
3
3
3
3
3
2
2
2
2
2
2
2
2
2
2
Distance (km)
241
0
0
0
0
0
0
160
326
0
0
0
0
0
0
339
0
0
0
0
0
0
0
340
Best forecast wave conditions in Golfo Dulce
Rating
(10 max)
4
4
4
4
4
4
3
3
3
3
3
3
2
2
2
2
2
2
2
Best forecast wave conditions in Costa Rica
Rating
(10 max)
3
4
4
4
4
4
4
3
3
3
3
3
3
3
3
3
2
2
2
3
3
2
2
2
Header Global
Rating
(10 max)
4
4
4
4
5
9
9
8
6
9
5
5
4
5
4
8
9
6
9
9
9
9
9
9
  • 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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