Backwash surfForecast / Golfo Dulce / Costa Rica

information circle16 Day Weather and Surf, issued 11 am 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)

Best Forecast Surf Conditions for Backwash this week:

The surf forecast for Backwash over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (May 09) at 9PM. The primary swell is predicted to be 1.3m and 18s period with a secondary swell of 1.1m and 13s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Backwash in the next 16 days are 1.3m 18s and forecast to arrive on Saturday (May 09) at 9PM. Winds are predicted to be offshore at the time the swell arrives.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 9th May)4.5ft (1.3m) 18s
Best Surf 9PM (Sat 9th May)4.5ft (1.3m) 18s
Most Powerful 9PM (Sat 9th May)4.5ft (1.3m) 18s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 11mm), heaviest on Sat afternoon. Warm (max 30°C on Sat morning, min 26°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 16mm), heaviest on Tue night. Warm (max 29°C on Tue morning, min 26°C on Tue night). Wind will be generally light.

Saturday
9
Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thursday
14
Friday
15
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
4
3
2
3
2
2
2
2
2
2
2
1
2
2
2
2
2
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
SSW
16
1.1
SSW
18
1.3
SSW
18
1.3
SSW
17
1.1
SSW
16
1.2
SSW
16
1
SSW
16
0.9
SSW
15
0.9
SSW
15
0.8
SSW
14
0.7
SSW
14
0.7
SSW
14
0.8
S
10
0.6
SSW
17
0.9
SSW
16
0.9
SSW
15
1.1
SW
15
1.1
SW
15
0.9
SSW
14
1
SSW
14
0.9
SSW
14
Wave Graph
Metric surfscale
Energy kJ
706
759
1106
848
643
733
475
358
334
268
183
161
138
193
441
409
496
496
357
419
323
Wind (km/h)
0
NNW
20
WSW
10
NNW
0
NNW
15
SW
5
N
0
NNE
15
WSW
5
WNW
0
WNW
15
SW
0
WNW
0
NW
15
SW
5
NW
0
ENE
10
SW
5
NW
0
SE
10
SW
5
NW
glassy
cross-off
cross-off
glassy
cross
glassy
glassy
cross-off
off
glassy
cross-off
glassy
glassy
cross
glassy
glassy
cross-off
off
glassy
cross
glassy
High Tide
7:56PM2.25m
8:45AM2.30m
8:58PM2.21m
9:43AM2.37m
10:06PM2.23m
10:41AM2.50m
11:10PM2.33m
11:34AM2.68m
00:07AM2.47m
12:25PM2.87m
1:00AM2.64m
1:14PM3.05m
1:50AM2.81m
Low Tide
1:53PM1.06m
2:19AM0.87m
2:57PM1.07m
3:17AM0.90m
4:04PM0.99m
4:16AM0.87m
5:05PM0.83m
5:13AM0.78m
6:00PM0.62m
6:07AM0.65m
6:50PM0.39m
6:59AM0.50m
7:39PM0.18m
clear
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
rain showers
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:15
5:15
5:15
5:13
5:13
5:13
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:43
5:43
5:44
5:44
5:44
5:44
5:44
2
2
2
2
3
1
5
6
1
1
1
1
1
8
1
Temp °C
30
30
27
29
30
28
29
30
27
29
29
26
29
29
27
29
29
27
29
29
26
33
32
31
32
33
33
32
33
31
32
32
30
32
31
32
32
32
31
32
32
31
Swell 1
Height (m)
Direction
Period (s)
1.2
SSW
16
1.1
SSW
18
1.3
SSW
18
1.3
SSW
17
1.1
SSW
16
1.2
SSW
16
1
SSW
16
0.9
SSW
15
0.9
SSW
15
0.8
SSW
11
0.8
SSW
11
0.8
S
10
0.8
S
10
0.7
S
10
0.9
SSW
16
0.9
SSW
15
1.1
SW
15
1.1
SW
15
0.9
SSW
14
1
SSW
14
0.9
SSW
14
Energy kJ
706
759
1106
848
643
733
475
358
334
150
153
135
138
96
441
409
496
496
357
419
323
Swell 2
Height (m)
Direction
Period (s)
0.9
SSW
20
1.1
SSW
13
1
SSW
13
0.9
SSW
12
0.9
SSW
12
0.6
SSW
11
0.8
SSW
12
0.8
SSW
11
0.8
SSW
10
0.8
SSW
14
0.7
SSW
14
0.7
SSW
14
0.6
SSW
13
0.6
SSW
17
0.7
S
10
0.6
S
10
0.6
S
10
0.5
S
9
0.5
S
10
0.5
S
10
0.5
S
10
Energy kJ
550
396
307
203
271
91
176
158
133
268
183
161
118
193
92
66
67
42
46
46
47
Swell 3
Height (m)
Direction
Period (s)
0.3
SSW
7
0.4
SSW
13
0.4
SSW
12
0.1
W
13
0.1
S
21
0.1
SW
20
0.2
SSW
19
0.4
SW
18
0.4
SSW
18
0.6
SSW
13
0.1
W
11
0.1
W
12
0.1
W
12
0.1
W
15
0.1
W
14
0.1
S
20
0.2
SSW
18
Energy kJ
10
57
52
3
8
15
37
85
121
120
3
3
3
4
4
7
31
Wind waves
Height (m)
Direction
Period (s)
Energy kJ
Nearest Offshore or Glassy
Rating
(10 max)
3
3
4
3
4
3
2
2
2
2
2
2
2
1
2
2
2
2
2
2
2
Distance (km)
0
241
0
0
333
0
0
0
0
0
0
0
0
235
0
0
0
0
0
98
0
Best forecast wave conditions in Golfo Dulce
Rating
(10 max)
4
4
4
3
3
2
2
2
2
2
2
3
3
2
3
2
2
Best forecast wave conditions in Costa Rica
Rating
(10 max)
4
3
4
4
3
3
3
2
3
2
2
2
2
2
3
3
2
3
2
3
2
Header Global
Rating
(10 max)
5
4
9
6
5
5
5
9
9
9
9
8
9
5
5
6
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
submit an eyeball surf report

Quick surf report for Backwash:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Backwash surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Information about the Backwash Surf forecast

The above surf forecast table for Backwash provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Backwash can be found by selecting the local surf guide option on the grey menu. Our Backwash 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 (Backwash) 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 Backwash 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 Dulce? If you are looking for accommodation near Backwash, camping, hotels and holiday cottages in Golfo Dulce, consider staying in Golfito which is 28 km (17 miles) away. Other places in and around Golfo Dulce where you can find information about places to rent, and car hire include Puerto Armuelles which is 48 km (30 miles) away, La Concepcion, Pedregal and David.

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest