Backwash surfForecast / Golfo Dulce / Costa Rica

information circle16 Day Weather and Surf, issued 11 pm Wednesday 08 Apr 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
30.0° C
(Which is normal for this time of year)

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 Thursday (Apr 09) at 6PM. The primary swell is predicted to be 0.8m and 18s period with a secondary swell of 0.9m and 12s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Backwash in the next 16 days are 1.8m 16s and forecast to arrive on Thursday (Apr 16) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 15s period and expected on Wednesday (Apr 15) at 9PM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Thu 9th Apr)2.5ft (0.8m) 18s
Best Surf 6PM (Wed 15th Apr)5ft (1.6m) 18s
Most Powerful 6AM (Thu 16th Apr)6ft (1.8m) 16s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 7mm), mostly falling on Fri afternoon. Warm (max 30°C on Thu afternoon, min 26°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 17mm), heaviest on Sun afternoon. Warm (max 29°C on Sun morning, min 25°C on Mon night). Wind will be generally light.

Thursday
09
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wed
15
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
2
1
1
2
3
2
2
2
1
2
2
1
2
2
0
2
2
1
3
3
3
Swell
Height Map
Wave Height (m) & direction (?)
0.9
SSW
0.9
SSW
0.8
SSW
0.9
SW
1
SSW
0.9
SSW
1
SSW
0.9
SSW
0.9
SSW
1
SSW
1
SSW
0.9
SSW
1
SSW
1
SSW
1
SSW
1
SSW
1
SSW
1
SSW
1
SSW
1
SSW
1.6
SSW
Period(s) (?)131218181616161615151514141414151615151918
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2942673994445594525254253824554053303943573624514574114058041621
Wind
(km/h)
5
N
5
SE
15
SW
5
NNW
0
WSW
15
WSW
5
N
5
SSE
15
SW
5
NNW
0
S
10
SW
5
N
0
E
15
SW
5
N
0
NNE
15
SW
5
N
5
ESE
15
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassoncrossoffglasscross-
off
cross-
off
glasscrossoffglasscrossglassglasscrosscross-
off
glasscrosscross-
off
glasscross
High Tide
/ height (m)
7:20AM
2.24
7:29PM
2.30
8:17AM
2.14
8:29PM
2.19
9:26AM
2.11
Low Tide
/ height (m)
1:06AM
0.75
1:19PM
1.01
1:58AM
0.88
2:19PM
1.12
3:02AM
0.97
3:33PM
1.16
Thursday
09
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wed
15
Sunrise-5:26--5:26--5:24--5:24--5:24--5:24--5:24-
Sunset--5:42--5:42--5:42--5:42--5:42--5:42--5:42
thunderstorm
clear
clear
clear
clear
thunderstorm
thunderstorm
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
part cloud
rain showers
thunderstorm
clear
thunderstorm
Rain (mm)
1----42---181-33-110-1
Temp. °C272930282929272930272929282929272929272929
Feels °C (?)323233323231323233323232333231313231313231
  • 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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Quick surf report for Backwash:

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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 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.

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