Downhill Surf Break

Lat Long: 55.17° N 6.84° W

Downhill Surf Forecast and Surf Report

Issued: 6 pm 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Downhill sea temperature is
15.5° C
1.0° 

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


Downhill surf forecast from 12 Aug 2026:

  • Most powerful swell: Wednesday 19 Aug, 1AM (local time) - 4.5ft (1.3m), 11s period, NW swell with 403 kJ wave energy.

Best Forecast Surf Conditions for Downhill this week:

The most powerful waves expected at Downhill in the next 16 days are 1.3m 11s and forecast to arrive on Wednesday (Aug 19) at 1AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Wednesday (Aug 12) at 10AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1AM (Wed 19th Aug)4.5ft (1.3m) 11s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Thu afternoon. Warm (max 24°C on Wed afternoon, min 14°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Sun afternoon. Very mild (max 17°C on Fri afternoon, min 11°C on Sun night). Wind will be generally light.

Tue
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
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)
0.3
NW
7
0.2
W
12
0.1
W
11
0.1
W
10
0.2
W
12
0.2
WNW
11
0.2
WNW
10
0.2
WNW
10
0.2
W
9
0.2
W
9
0.6
NW
5
0.8
NW
9
0.8
NW
8
0.8
NW
8
0.7
NW
8
0.6
NW
8
0.4
NW
7
0.2
WNW
9
0.2
NNW
6
0.1
W
8
Wave Graph
Metric surfscale
Energy kJ
8
11
2
2
11
11
10
10
7
6
21
109
80
90
60
35
17
8
4
1
Wind (km/h)
15
SSE
15
SSE
15
SSE
15
S
10
SSW
5
S
10
SW
5
WNW
10
W
20
NW
20
WNW
20
NW
20
NW
10
WNW
5
SW
10
NNE
10
ESE
0
ESE
10
ENE
10
SSE
Wind State
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
glassy
cross-on
on
on
on
on
cross-on
glassy
cross-on
cross-off
glassy
cross-off
cross-off
High Tide
6:19PM2.24m
6:40AM1.97m
7:03PM2.41m
7:21AM2.02m
7:44PM2.49m
7:59AM2.03m
8:22PM2.49m
8:35AM1.99m
8:59PM2.39m
9:09AM1.93m
9:34PM2.22m
9:44AM1.84m
10:09PM2.01m
Low Tide
00:45AM0.12m
12:45PM0.05m
1:28AM0.02m
1:24PM-0.06m
2:08AM-0.02m
2:02PM-0.11m
2:46AM0.02m
2:39PM-0.07m
3:21AM0.11m
3:16PM0.03m
3:55AM0.25m
3:54PM0.20m
part cloud
part cloud
part cloud
cloud
part cloud
cloud
thunderstorm
part cloud
part cloud
clear
part cloud
cloud
part cloud
part cloud
part cloud
light rain
rain showers
part cloud
part cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:56
5:58
6:00
6:01
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:10
9:08
9:06
9:04
9:01
9:00
8:57
 mm
7
1
1
1
Temp °C
21
19
22
24
22
21
22
17
16
17
15
15
15
14
15
15
13
15
18
16
Feels °C
19
17
20
23
22
21
22
18
14
13
12
11
11
11
14
13
12
14
18
16
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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Information about the Downhill Surf forecast

The above surf forecast table for Downhill provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Downhill can be found by selecting the local surf guide option on the grey menu. Our Downhill 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 (Downhill) 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 Downhill 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 Londonderry? If you are looking for accommodation near Downhill, camping, hotels and holiday cottages in Londonderry, consider staying in Coleraine which is 11 km (7 miles) away. Other places in and around Londonderry where you can find information about places to rent, and car hire include Derry which is 36 km (22 miles) away, Londonderry County Borough, Ballycastle and Derry.

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