Surf Forecast Surf Report

Backwash surfForecast / Golfo Dulce / Costa Rica

information circle12 Day Weather and Surf, issued 5 pm Friday 16 May 2025 CST
Forecast update in -0hr 13 min 50 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
86.9°F
(Which is 2.9°F warmer than normal for this time of year)


Best Forecast Surf Conditions for Backwash this week:

The surf forecast for Backwash over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (May 17) at 12AM. The primary swell is predicted to be 6ft and 15s period with a secondary swell of 1ft and 6s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Backwash in the next 12 days are 5ft 18s and forecast to arrive on Thursday (May 22) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2ft 5s period and expected on Sunday (May 18) at 9PM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sat 17th May)6ft (1.8m) 15s
Best Surf 3AM (Sat 17th May)6ft (1.8m) 15s
Most Powerful12PM (Thu 22nd May)5ft (1.6m) 18s

Table - best surf conditions forecast for Backwash over the next 12 days.

Updates in -0 hr 13 min 50 s Forecast update imminent
Fri
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wed
28
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
Swell
Height Map
Wave Height (ft) & direction (?)
6.5
SSW
6
SSW
5.5
SSW
5.5
SSW
5
SSW
5
SSW
5
SSW
5
SSW
4.5
SSW
4.5
SSW
4.5
SSW
4.5
SSW
4
SSW
4
SSW
2
SSW
4
SSW
4.5
SSW
3
SSW
4
SSW
5
SSW
4
SSW
5
SSW
5
SSW
5
SSW
5.5
SSW
6
SSW
5.5
SSW
5
SSW
4.5
SSW
5.5
SSW
6.5
SSW
6.5
SSW
6
SSW
6
SSW
5
SSW
5
SSW
Period(s) (?)161515151515151514141414141322131418181616161616161716162018171616151514
Wave
Graph
(?)Metric surfscale
Energy (?)1923147113641364113697011061106767756714789504514317447651559817127667410671354128915551955151712251446187422952033168414311024956
Wind
(mph)
5
SW
5
E
5
ENE
5
SSW
5
N
0
ESE
10
SW
5
NNW
5
NNE
5
SW
5
ENE
5
SE
5
SSW
5
NW
5
E
5
SW
5
NNW
5
ESE
5
SW
0
W
0
ENE
5
SW
5
N
5
ESE
5
WSW
0
NW
5
SE
5
SSW
5
NW
5
ESE
5
SSW
5
NNW
5
ESE
5
SSW
5
NNW
5
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on
glasscross-
on
glassglasscross-
off
offglasscrossglassglasscrossglassglasscrossglassglasscrossglassglasscrossglassglasscross-
off
glassglasscrossoffglasscross-
on
glassoncross-
on
offglass
High Tide
/ height (ft)
5:02PM
8.76
5:38AM
8.2
5:41PM
8.5
6:20AM
8.04
6:24PM
8.2
7:07AM
7.97
7:15PM
7.94
8:01AM
8.04
8:14PM
7.74
8:59AM
8.27
9:22PM
7.74
10:01AM
8.66
10:31PM
7.94
11:01AM
9.19
11:36PM
8.33
11:58AM
9.71
12:36AM
8.83
12:53PM
10.17
1:31AM
9.29
1:46PM
10.53
2:24AM
9.68
2:37PM
10.7
3:15AM
9.88
Low Tide
/ height (ft)
11:23PM
1.54
11:35AM
2.59
12:03AM
1.8
12:19PM
2.85
12:46AM
2.1
1:10PM
3.02
1:36AM
2.3
2:11PM
3.05
2:32AM
2.43
3:19PM
2.85
3:34AM
2.43
4:26PM
2.4
4:38AM
2.23
5:28PM
1.77
5:38AM
1.87
6:26PM
1.08
6:36AM
1.48
7:19PM
0.46
7:31AM
1.08
8:10PM
0
8:24AM
0.82
9:00PM
-0.23
9:16AM
0.72
Fri
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wed
28
Sunrise--5:13--5:13--5:13--5:13--5:13--5:13--5:13--5:13--5:13--5:13--5:13--5:13
Sunset5:44--5:45--5:45--5:45--5:45--5:45--5:45--5:45--5:45--5:45--5:45--5:46--
thunderstorm thunderstorm part cloudthunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm clearpart cloudthunderstorm thunderstorm part cloudthunderstorm thunderstorm thunderstorm thunderstorm part cloudthunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm rain showersthunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm
Rain (in)
0.20.0-0.20.20.10.20.00.10.20.2--0.20.1-0.20.10.10.1-0.10.30.20.30.30.10.20.30.00.10.10.00.10.20.0
Temp. °F827782827981827982827782828182848182847982847982827982827982817982828182
Feels °F (?)908490908890888690908288889088909088908888908890888688888690888888909090

Short Range Forecast: Heavy rain (total 1.0in), heaviest during Fri afternoon. Warm (max 82°F on Fri afternoon, min 77°F on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 1.0in), heaviest during Mon night. Warm (max 84°F on Wed afternoon, min 77°F on Mon night). Wind will be generally light.

Days 6-9 Weather Summary Heavy rain (total 1.4in), heaviest during Sat afternoon. Warm (max 84°F on Thu afternoon, min 77°F on Sat night). Wind will be generally light.

Long Range Forecast: Heavy rain (total 1.1in), heaviest during Sun night. Warm (max 82°F on Sun afternoon, min 77°F on Sun night). Wind will be generally light.

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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 12 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.

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