Back Strands Surf Break

Lat Long: 54.45° N 8.49° W

Back Strands Surf Forecast and Surf Report

Issued: 6 pm 09 Sep 2026 (local time)

Forecast update in  hr  min

Today's Back Strands sea temperature is
16.2°C
2.0° 

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 9 Sep 2026:

  • Best quality surf: Friday 11 Sep, 4PM (local time) - 4ft (1.2m), 9s period, W swell with cross-offshore winds.
  • Most powerful swell: Saturday 12 Sep, 7AM (local time) - 7ft (2.2m), 12s period, W swell with 1,280 kJ wave energy.
  • Next surfable swell (1★+): Friday 11 Sep, 4PM (local time) - 4ft (1.2m), 9s 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 Friday (Sep 11) at 4PM. The primary swell is predicted to be 1.2m and 9s period with a secondary swell of 0.5m and 11s. 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 2.2m 12s and forecast to arrive on Saturday (Sep 12) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Saturday (Sep 12) at 4AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Fri 11th Sep)4ft (1.2m) 9s
Best Surf 4PM (Fri 11th Sep)4ft (1.2m) 9s
Most Powerful 7AM (Sat 12th Sep)7ft (2.2m) 12s

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


The Lowdown

Alright folks, Rusty here. Let’s cut through the noise and have a look at our local set-up for the next couple of weeks. It’s a bit of a mixed bag for Back Strands, but there are a couple of windows where I’d be paddling out for sure.

We start off pretty average, to be honest. The first few days aren't offering much quality, with wind and swell conspiring against us. Wednesday the 9th is a write-off with a messy cross-on breeze, but Thursday the 10th sees a bit more energy in the water. The swell picks up to 4ft from the WSW, but it’s a real lumpy cross-shore mess with a Fresh breeze. Not one for the log, that’s for sure.

The first real standout window kicks off on Friday the 11th afternoon. The wind swings cross-off shore with a Gentle breeze, and the wave energy is decent at 327 (moderate). It’s a clean 4ft from the WNW with a 9-second period. The water’s a touch warmer than normal for this time of year at 61°F, so that’s a bonus. Saturday the 12th looks a bit too raw for most, with a solid 6ft WNW swell but cross-shore wind and chop spoiling the party. That swell’s got some grunt to it (1047 combined energy), but it’s not clean.

Sunday the 13th morning is where you need to be. We’ve got clear skies, a Light breeze blowing cross-off shore, and a clean 4ft WNW groundswell with an 11-second period. The energy is moderate at 302, but the conditions are good, real good. That long period means the waves will have some shape and punch, especially at a reef break like this. It’s not too big, so the beginners could have a go too.

After that, things go quiet again for the middle of the week. There’s a long gap with nothing worth mentioning until we get to Friday the 18th. Now, this is a real treat on the horizon. Friday the 18th morning brings an offshore wind from the SSE with a Gentle breeze. We’re looking at a 5ft WNW groundswell with a 12-second period, and the combined energy is a thumping 768 (strong). That’s the pick of the whole forecast. It’s clean, it’s got power, and it’s an offshore wind at Back Strands. This one is for the experienced crew, but it’ll be a session to remember. That afternoon the wind goes cross-off, so the window is tight, but the morning is gold.

After that we have some stronger winds and lumpy conditions, but another promising stretch appears on Monday the 21st. A glassy offshore from the ESE in the morning with a 4ft WNW swell at 12 seconds (519 energy) makes for a clean, fun session. That lasts into the afternoon with a light cross-off breeze. Then Tuesday the 22nd morning is another good bet: a 6ft W swell with a 10-second period and a Gentle offshore breeze. The crowd profile says it gets "sometimes" busy here, and on a morning like that, you can expect a few heads out.

Looking at the final few days, the 23rd and 24th have moments. Wednesday the 23rd morning is clean with a 5ft W swell and a Gentle offshore breeze (449 energy). That’s a solid, consistent option. Thursday the 24th brings the biggest swell of the run – a 7ft WNW with a 12-second period and 1316 combined energy. That’s a serious amount of water moving around. But it’s got a cross-on wind, making it choppy. That’s one for the experts only, and even then, it's a bit on the messy side.

Overall, if you’re looking for the absolute best, Friday the 18th morning is the standout. The offshore wind, the solid groundswell, and the power are all aligning. Sunday the 13th morning is your best early call for cleaner, smaller waves. The other decent windows are all worth a look, but those two are the ones to circle on the calendar.

Get on it.

Rusty

Short Range Forecast

Moderate rain (total 16mm), heaviest on Fri night. Very mild (max 17°C on Thu afternoon, min 12°C on Wed night). Winds increasing (light winds from the SW on Wed afternoon, strong winds from the SSE by Wed night).

Days 5-7 Weather Summary

Moderate rain (total 18mm), heaviest on Mon night. Warm (max 20°C on Mon afternoon, min 13°C on Sat night). Mainly fresh winds.

Wed
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
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
2
1
0
0
0
2
1
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
1.3
SW
5
0.8
W
12
1.3
W
10
1.3
W
8
1.2
W
9
1.6
WNW
13
2.1
W
12
1.8
WNW
12
1.3
WNW
12
1.3
WNW
11
1
WNW
10
0.9
WNW
9
0.6
W
9
0.4
WNW
11
1.3
W
9
1.4
W
10
1.7
W
10
2.1
WNW
10
Wave Graph
Metric surfscale
Energy kJ
119
58
70
171
340
245
235
929
1236
843
454
353
209
119
54
43
276
369
596
919
Wind (km/h)
10
SW
25
S
25
SSW
35
SW
30
WNW
20
WSW
15
SSW
30
S
25
W
15
NW
15
W
10
SSW
15
S
20
S
20
SSW
20
WSW
20
SW
20
W
30
NW
25
NW
Wind State
cross
cross-off
cross-off
cross
cross-on
cross
cross-off
cross-off
cross-on
on
cross-on
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-on
on
on
High Tide
5:27PM3.64m
5:57AM3.22m
6:09PM3.85m
6:36AM3.37m
6:48PM3.94m
7:12AM3.45m
7:25PM3.90m
7:47AM3.46m
8:00PM3.74m
8:20AM3.39m
8:34PM3.49m
8:53AM3.26m
9:08PM3.19m
Low Tide
11:47PM0.12m
11:47AM0.23m
00:25AM-0.05m
12:26PM0.09m
1:01AM-0.11m
1:03PM0.03m
1:34AM-0.07m
1:39PM0.07m
2:06AM0.07m
2:15PM0.19m
2:37AM0.27m
2:50PM0.39m
3:07AM0.52m
part cloud
cloud
cloud
rain showers
rain showers
part cloud
part cloud
heavy rain
rain showers
part cloud
part cloud
part cloud
cloud
light rain
rain showers
light rain
rain showers
rain showers
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:58
7:00
7:01
7:03
7:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:06
8:04
8:00
7:59
7:55
7:53
7:51
 mm
1
1
13
1
2
1
2
12
1
Temp °C
15
14
16
17
14
15
17
17
16
14
14
14
16
17
19
20
16
14
13
13
Feels °C
12
7
11
12
10
11
14
13
13
11
11
11
13
16
17
18
14
10
7
6
  • 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 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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