Back Strands Surf Break

Lat Long: 54.45° N 8.49° W

Back Strands Surf Forecast and Surf Report

Issued: 6 pm 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Back Strands sea temperature is
16.6°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 27 Aug 2026:

  • Best quality surf: Wednesday 2 Sep, 7AM (local time) - 2.5ft (0.8m), 8s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Friday 4 Sep, 1AM (local time) - 6ft (1.8m), 11s period, W swell with 792 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 7AM (local time) - 2.5ft (0.8m), 8s period with WNW 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 Wednesday (Sep 02) at 7AM. The primary swell is predicted to be 0.8m and 8s period. 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 1.8m 11s and forecast to arrive on Friday (Sep 04) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Sep 02) at 10PM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Wed 2nd Sep)2.5ft (0.8m) 8s
Best Surf 7AM (Wed 2nd Sep)2.5ft (0.8m) 8s
Most Powerful 1AM (Fri 4th Sep)6ft (1.8m) 11s

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


The Lowdown

Alright, Rusty here, and I’m looking at the charts for the next couple of weeks. To be straight with you, it’s a pretty grim stretch. Most of the time, the conditions just aren't coming together. We’ve got waves showing up, sure, but the wind is playing havoc, and the quality is mostly, well, ordinary at best.

Let’s talk about the only real game in town: Back Strands. This reef setup is fairly consistent, but don't expect much action for a while. The first recommendation of any kind is a window Thursday afternoon, August 27th, with a tiny 0.5ft swell from the W at 9 seconds. The energy is weak, only 40 (combined swell energy), but the wind is glassy from the SE. The water’s a touch warmer than normal at 62°F. It’s pretty poor, but if the rain showers hold off, you might get a couple of knee-high sliders.

Friday through the weekend is flat with tiny, unrideable slop. Then we get a pulse of energy. On Monday morning, August 31st, things start to get interesting size-wise but messy. We get a 3ft W swell at 10 seconds with a moderate cross-onshore wind, making it choppy. The energy bumps up to 198 (moderate wave energy), but the chop is a killer. The swell builds through the start of September, hitting 5ft on Tuesday morning with a period of 9 seconds and an energy of 307 (now moderate). But again, it’s cross-onshore and messy.

There’s a tiny window of cleaner conditions on Wednesday morning, September 2nd, with a light offshore from the SE and a weak 2ft W swell. The energy is low at 51. It’s clean but tiny. Thursday the 3rd gets a cleaner cross-off shore wind with a 4ft W swell, but the wind is a fresh 19 mph, making it bumpy.

Now, here’s the standout in the whole run. On Friday, September 4th, a solid pulse arrives with a very long period groundswell of 8ft from the W at 13 seconds. The energy jumps to a strong 1862 (combined swell energy). However, the wind is a strong breeze from the WSW at 25 mph, blowing cross-onshore, making it a messy, lumpy mess. This wave has the power, but the wind is totally ruining it. This would be expert-only due to the size (over 8ft) and the rough conditions.

The real hidden gem, and the only thing I’d genuinely get excited about, is the morning of Sunday, September 6th. After the big messy swell passes, we get a 5ft swell from the WNW at 9 seconds with glassy, clean conditions from a light NNW breeze. Energy is moderate at 333. The forecast says "expect good surf conditions," and with those conditions, Back Strands for the first time in two weeks looks like it could be clean, surfable, and not a fight. That’s your best bet, but remember, it is still over a week away, so the long-range call is promising but not locked in.

After that, it drops back into small surf with poor winds for the rest of the run. We get a couple of days with clean cross-off winds around the 8th and 9th of September, but the swell is tiny again, around 3ft to 4ft, with a period of 9 to 12 seconds. Those are surfable but very ordinary.

For the most part, this isn't a paddle surfer's forecast. With all the strong, messy winds hitting the beach and reef setup for most of the two weeks, it looks like a better setup for kite surfing.

Rusty

Short Range Forecast

Moderate rain (total 11mm), heaviest on Thu afternoon. Warm (max 20°C on Thu afternoon, min 13°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 5mm), mostly falling on Mon night. Very mild (max 16°C on Sun afternoon, min 12°C on Tue night). Winds increasing (calm on Sun night, strong winds from the WSW by Mon night).

Thu
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
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)
0.5
W
9
0.4
WNW
8
0.3
WNW
8
0.3
WNW
7
0.2
WNW
7
0.2
NNW
6
0.2
NNW
7
0.2
W
9
0.4
WSW
10
0.5
W
9
0.4
W
9
1
W
10
1.1
W
10
1.6
W
8
1.4
WNW
9
1.3
WNW
9
0.9
WNW
8
0.6
WNW
8
0.4
WNW
7
0.6
W
8
Wave Graph
Metric surfscale
Energy kJ
40
22
11
11
5
4
5
6
30
42
24
198
228
283
307
243
116
44
17
52
Wind (km/h)
5
SE
10
NE
5
WNW
15
NW
10
NE
10
NE
10
W
5
SW
15
ESE
10
E
15
WNW
25
W
30
SW
40
WSW
25
W
25
W
15
W
10
SE
20
S
20
S
Wind State
glassy
cross
on
on
cross
cross
cross-on
cross
cross-off
cross-off
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
off
cross-off
cross-off
High Tide
6:28PM3.50m
6:45AM3.12m
6:58PM3.64m
7:16AM3.23m
7:29PM3.71m
7:48AM3.29m
8:00PM3.70m
8:21AM3.29m
8:33PM3.60m
8:55AM3.23m
9:10PM3.42m
9:34AM3.12m
9:51PM3.18m
Low Tide
00:40AM0.32m
12:37PM0.29m
1:09AM0.18m
1:08PM0.20m
1:39AM0.11m
1:40PM0.18m
2:10AM0.10m
2:13PM0.22m
2:42AM0.18m
2:49PM0.33m
3:17AM0.33m
3:29PM0.50m
3:57AM0.55m
rain showers
part cloud
clear
clear
rain showers
light rain
rain showers
part cloud
light rain
light rain
part cloud
cloud
rain showers
rain showers
cloud
part cloud
part cloud
part cloud
cloud
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:31
6:33
6:35
6:37
6:39
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:37
8:36
8:34
8:30
8:29
8:25
8:23
 mm
4
1
3
1
2
1
1
3
8
Temp °C
20
19
18
17
15
14
15
15
15
16
15
16
16
15
14
15
14
15
17
17
Feels °C
21
19
16
15
14
12
14
14
13
15
15
11
11
10
9
10
11
13
14
14
  • 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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