Back Strands Surf Break

Lat Long: 54.45° N 8.49° W

Back Strands Surf Forecast and Surf Report

Issued: 6 pm 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Back Strands sea temperature is
16.8° C
1.8° 

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


Back Strands surf forecast from 15 Aug 2026:

  • Best quality surf: Sunday 16 Aug, 7PM (local time) - 2.5ft (0.8m), 8s period, W swell with cross-offshore winds.
  • Most powerful swell: Wednesday 19 Aug, 7PM (local time) - 6ft (1.9m), 10s period, W swell with 740 kJ wave energy.
  • Next surfable swell (1★+): Sunday 16 Aug, 7PM (local time) - 2.5ft (0.8m), 8s period with W swell.

Best Forecast Surf Conditions for Back Strands this week:

The surf forecast for Back Strands over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 16) at 7PM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.3m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Back Strands in the next 16 days are 1.9m 10s and forecast to arrive on Wednesday (Aug 19) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Aug 16) at 4PM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Sun 16th Aug)2.5ft (0.8m) 8s
Best Surf 7PM (Sun 16th Aug)2.5ft (0.8m) 8s
Most Powerful 7PM (Wed 19th Aug)6ft (1.9m) 10s

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


The Lowdown

Alright, let’s get into it. The long-range picture for Back Strands is pretty bleak, if I’m being honest. We’ve got a solid stretch of poor surf ahead, but there are a couple of flickers of life right at the back end that might be worth keeping an eye on. This is going to be a patience game, not a paddling game.

Right off the bat, we’re looking at a dead zone. From now through the 24th, it’s mostly tiny, weak, and messy. There’s some swell on the 18th and 19th, pushing 5ft to 6ft, but the wind is howling out of the west and southwest, putting a nasty cross-onshore chop on it. The wave energy gets up there – we’re talking moderate to strong energy readings of 270, 351, 422, even 556 – but it's all for nothing, as it’s just lumpy, closed-out, and blown out. You’d be fighting a losing battle out there. Not worth the wetsuit.

The morning of the 15th is clean but tiny, and the afternoon is cross-onshore with terrible waves. Everything from the 16th to the 24th is either too small, too onshore, or just plain junky. There’s a window on the 20th with a smaller NW swell (4ft) and a longer 10-second period, but the NNW cross-onshore wind still ruins it. It’s a no-go.

Now, for the one true standout in this whole sorry outlook. It’s not massive, but it’s the best we’ve got. On the 25th, things finally align. It’s still small at 2ft, but the wind swings around to a light easterly, giving us a clean cross-off breeze. The direction is solidly from the W, which is what this spot wants. The energy is weak (78, 71), but for the first time in over a week, there’s going to be a clean, rideable wave. This will be a longboard or a funboard day, and there could be a few fun ones. It’s a far cry from epic, but it’s the clear winner here. A week later, on the 28th, we get another pulse of similar energy, 3ft from the W with a 10-second period. It’s another clean, cross-off day, and the energy readings of 171 and 208 are moderate. This 28th looks like it might have just a touch more push behind it, making it the pick of the two. It’s still well under the size for any real drama, but it’s clean and rideable. Don’t expect a circus, just a few friends out.

Back Strands (Finder) is a reef setup, and it's fairly consistent, but this forecast has it mostly missing. The water is sitting at 62°F, which is a touch warmer than normal for this time of year. The swell direction is all over the place, but the optimum is from the W, so the 25th and the 28th have that working in their favor. The periods on the 25th are short (9 seconds), but the one on the 28th is a touch longer.

Bottom line: forget the next week and a half. Mark your calendar for the 25th as a possible dawny, but the 28th looks like the more promising of the two, given the slightly better energy and a more consistent period. It’s not going to be huge, but it’ll be clean. And after this drought, clean will feel like a luxury.

Rusty

Short Range Forecast

Moderate rain (total 15mm), heaviest on Mon afternoon. Very mild (max 17°C on Mon afternoon, min 12°C on Sun morning). Winds increasing (calm on Sat night, fresh winds from the W by Tue morning).

Days 5-7 Weather Summary

Light rain (total 8mm), mostly falling on Tue night. Very mild (max 16°C on Thu morning, min 13°C on Tue night). Winds decreasing (fresh winds from the W on Tue night, light winds from the W by Wed night).

Sat
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
WNW
8
0.7
WNW
8
0.6
WNW
8
0.4
NW
7
0.8
W
8
0.8
W
8
0.6
W
8
1.3
W
8
1.5
W
8
1.6
W
8
1.6
W
9
1.6
W
9
1.8
W
9
1.6
WNW
10
1.2
WNW
10
1.3
WNW
9
0.9
NW
8
0.7
WNW
8
0.4
WNW
7
0.5
NW
6
Wave Graph
Metric surfscale
Energy kJ
83
54
37
14
89
89
45
186
270
351
449
422
556
533
271
268
100
55
21
17
Wind (km/h)
15
W
10
WSW
10
SSE
15
SSE
15
WSW
20
SW
20
S
25
W
25
W
30
W
25
W
30
WSW
30
W
15
WNW
10
NNW
25
NNW
20
N
25
N
20
N
15
NNE
Wind State
cross-on
cross
off
off
cross-on
cross
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
High Tide
8:31PM3.91m
8:54AM3.26m
9:09PM3.67m
9:31AM3.13m
9:47PM3.35m
10:09AM2.95m
10:27PM3.01m
10:51AM2.76m
11:11PM2.67m
11:41AM2.56m
00:08AM2.39m
12:52PM2.41m
1:34AM2.22m
Low Tide
2:43AM0.05m
2:43PM0.20m
3:18AM0.25m
3:22PM0.41m
3:54AM0.51m
4:02PM0.67m
4:31AM0.78m
4:48PM0.95m
5:14AM1.05m
5:46PM1.21m
6:15AM1.27m
7:18PM1.37m
part cloud
light rain
cloud
light rain
part cloud
light rain
mod rain
light rain
cloud
cloud
rain showers
rain showers
rain showers
rain showers
clear
clear
part cloud
part cloud
rain showers
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:11
6:13
6:16
6:18
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:06
9:04
9:01
8:59
8:57
8:54
8:52
 mm
1
2
3
6
3
2
2
1
3
1
Temp °C
15
14
13
15
15
14
17
16
15
15
15
15
15
15
16
16
13
14
15
13
Feels °C
13
13
11
14
13
11
14
13
10
10
10
10
10
12
13
11
9
9
11
9
  • Map Icons:
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  • 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 Back Strands Surf forecast

The above surf forecast table for Back Strands provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Back Strands can be found by selecting the local surf guide option on the grey menu. Our Back Strands 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 (Back Strands) 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 Back Strands 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 Sligo? If you are looking for accommodation near Back Strands, camping, hotels and holiday cottages in Sligo, consider staying in Sligo which is 19 km (12 miles) away. Other places in and around Sligo where you can find information about places to rent, and car hire include Killybegs which is 21 km (13 miles) away, Enniskillen, Ballina and Letterkenny.

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