Backwash Surf Break

Backwash Surf Forecast and Surf Report

Lat Long: 8.41° N 83.28° W

Issued: 5 pm 28 Jun 2026 (local time)

Forecast update in  hr  min

Today's Backwash sea temperature is
29.7° C

1.4°C warmer than normal for this time of year

Backwash surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Backwash surf forecast from 29 Jun 2026:

  • Best quality surf: Wednesday 1 Jul, 6PM (local time) - 5ft (1.6m), 16s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Friday 3 Jul, 3PM (local time) - 5ft (1.6m), 16s period, SSW swell with 1,302 kJ wave energy.
  • Next surfable swell (1★+): Monday 29 Jun, 3AM (local time) - 2.5ft (0.8m), 16s period with SSW swell.

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 Monday (Jun 29) at 3AM. The primary swell is predicted to be 0.8m and 16s period with a secondary swell of 0.7m and 14s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Backwash in the next 16 days are 1.6m 16s and forecast to arrive on Friday (Jul 03) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Mon 29th Jun)2.5ft (0.8m) 16s
Best Surf 6PM (Wed 1st Jul)5ft (1.6m) 16s
Most Powerful 3PM (Fri 3rd Jul)5ft (1.6m) 16s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 25mm), heaviest during Sun night. Warm (max 30°C on Sun afternoon, min 26°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 26mm), heaviest during Thu night. Warm (max 30°C on Wed afternoon, min 25°C on Thu night). Wind will be generally light.

Sun
28
Monday
29
Tuesday
30
Wednesday
1
Thursday
2
Friday
3
Saturday
4
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
2
3
2
3
3
3
2
3
3
2
3
3
2
3
3
3
3
3
1
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
17
1
SSW
16
1
SSW
16
0.9
SSW
15
0.9
SSW
15
0.9
SSW
14
1
SSW
18
1.2
SSW
18
1.2
SSW
17
1.2
SSW
16
1.3
SSW
16
1.1
SSW
15
1.1
SSW
15
1.3
SSW
17
1.6
SSW
16
1.6
SSW
16
1.5
SSW
15
1.2
SSW
16
1.2
SSW
15
1.1
SSW
14
1.1
SSW
14
Wave Graph
Metric surfscale
Energy kJ
386
525
519
372
372
325
603
832
798
751
788
512
537
958
1255
1302
975
645
573
478
433
Wind (km/h)
15
WSW
5
NW
5
NNW
15
WSW
10
NW
0
W
15
SW
5
NW
5
SE
10
SW
5
NW
0
S
10
SW
10
WNW
5
SE
10
SW
5
NNW
0
N
15
SW
5
NW
0
SE
Wind State
cross-off
glassy
glassy
cross-off
off
glassy
cross
off
glassy
cross
off
glassy
cross
off
glassy
cross
glassy
glassy
cross
off
glassy
High Tide
2:20AM2.45m
2:24PM2.66m
3:01AM2.52m
3:04PM2.70m
3:40AM2.59m
3:43PM2.72m
4:19AM2.64m
4:21PM2.72m
4:55AM2.67m
4:58PM2.68m
5:32AM2.69m
5:36PM2.62m
6:08AM2.70m
Low Tide
8:05PM0.52m
8:15AM0.76m
8:46PM0.45m
8:57AM0.71m
9:25PM0.40m
9:37AM0.68m
10:03PM0.37m
10:17AM0.67m
10:39PM0.39m
10:56AM0.68m
11:14PM0.43m
11:35AM0.69m
11:49PM0.49m
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
thunderstorm
rain showers
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:18
5:18
5:18
5:18
5:18
5:18
5:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:53
5:53
5:54
5:54
5:54
5:54
5:54
5:54
 mm
2
4
3
4
1
9
2
1
1
3
9
9
2
1
5
1
3
Temp °C
30
28
29
30
27
29
30
28
29
30
28
29
30
26
29
29
27
29
29
27
29
Feels °C
33
33
33
33
31
33
33
33
33
34
33
32
34
31
33
32
32
33
32
32
33
Swell 1
Height (m)
Direction
Period (s)
0.8
SSW
17
1
SSW
16
1
SSW
16
0.9
SSW
15
0.9
SSW
15
0.9
SSW
14
1
SSW
18
1.2
SSW
18
1.2
SSW
17
1.2
SSW
16
1.3
SSW
16
1.1
SSW
15
1.1
SSW
15
1.3
SSW
17
1.6
SSW
16
1.6
SSW
16
1.5
SSW
15
1.2
SSW
16
1.2
SSW
15
1.1
SSW
14
1.1
SSW
14
Energy kJ
386
525
519
372
372
325
603
832
798
751
788
512
537
958
1255
1302
975
645
573
478
433
Swell 2
Height (m)
Direction
Period (s)
0.8
S
10
0.7
S
10
0.7
S
10
0.7
S
10
0.6
S
10
0.7
SSW
18
0.7
SW
14
0.7
S
9
0.7
S
10
0.7
S
10
0.8
S
12
0.9
SSW
12
0.8
S
11
0.8
S
10
0.2
SSW
21
0.9
S
11
0.6
SSW
6
0.6
SSW
6
0.6
SSW
6
0.7
SSW
6
Energy kJ
138
98
92
92
67
289
194
83
92
94
177
236
143
141
45
184
31
31
31
39
Swell 3
Height (m)
Direction
Period (s)
0.6
SW
14
0.2
SSW
21
0.2
SSW
21
0.6
SSW
19
0.6
SSW
20
0.6
S
9
0.6
S
9
0.7
SW
14
0.6
SSW
13
0.8
SSW
13
0.5
S
20
0.6
S
19
0.8
SSW
18
0.2
SSW
21
0.4
SW
20
0.5
S
11
0.5
S
10
0.6
SSW
18
0.3
SW
24
Energy kJ
167
45
44
246
253
59
59
208
114
201
200
273
422
45
97
55
49
209
87
Wind waves
Height (m)
Direction
Period (s)
Energy kJ
Nearest Offshore or Glassy
Rating
(10 max)
2
3
2
3
3
3
3
3
3
2
3
3
3
3
3
3
3
3
2
3
2
Distance (km)
230
0
0
0
0
0
338
0
0
160
0
0
129
0
0
110
0
0
129
0
0
Best forecast wave conditions in Golfo Dulce
Rating
(10 max)
3
3
3
3
3
4
4
4
4
4
4
4
3
3
3
Best forecast wave conditions in Costa Rica
Rating
(10 max)
3
3
3
3
3
3
3
4
4
3
4
4
3
4
4
3
4
3
3
3
3
Header Global
Rating
(10 max)
7
5
5
5
5
5
5
5
4
5
7
5
9
5
6
6
7
9
7
5
9
  • 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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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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