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Surf Forecasts:

Hells Mouth (Porth Neigwl) surf break

Hells Mouth (Porth Neigwl) surfForecast / Wales – Lleyn / UK

information circle12 Day Weather and Surf, issued 11 am Saturday 07 Feb 2026 GMT
Forecast update in hr  min  s Forecast update imminent
Hells Mouth (Porth Neigwl) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Hells Mouth (Porth Neigwl) sea temperature is
7.4° C
 (Which is slightly cooler than normal)

Best Forecast Surf Conditions for Hells Mouth (Porth Neigwl) this week:

The surf forecast for Hells Mouth (Porth Neigwl) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Feb 07) at 6PM. The primary swell is predicted to be 1.0m and 12s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Hells Mouth (Porth Neigwl) in the next 12 days are 2.4m 15s and forecast to arrive on Wednesday (Feb 11) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Saturday (Feb 14) at 6AM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Sat 7th Feb)3.5ft (1.0m) 12s
Best Surf 6PM (Sat 7th Feb)3.5ft (1.0m) 12s
Most Powerful 6PM (Wed 11th Feb)8ft (2.4m) 15s

Table - best surf conditions forecast for Hells Mouth (Porth Neigwl) over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 22mm), heaviest during Mon night. Mild temperatures (max 9°C on Sat afternoon, min 8°C on Sat morning). Winds increasing (light winds from the NE on Sat afternoon, strong winds from the SE by Mon afternoon).

Days 3-6 Weather Summary Moderate rain (total 12mm), heaviest on Tue afternoon. Very mild (max 10°C on Tue night, min 5°C on Thu night). Winds increasing (moderate winds from the SSE on Tue morning, near gales from the WNW by Thu night).

Saturday
07
Sunday
08
Monday
09
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.2
SW
1.1
SW
0.8
SW
0.8
SW
0.6
SW
0.5
SW
0.8
SW
0.7
SW
0.9
SW
0.9
SW
0.9
SW
1.1
SW
1.5
SW
2.2
SW
2.2
WSW
1.9
SW
1.7
WSW
1.7
WSW
1.3
WSW
1.2
WSW
0.9
WSW
Period(s) (?)1312111010109810101016141516141515141312
Wave
Graph
(?)Metric surfscale
Energy kJ (?)47133614012480471035515418616861189019562445149112791297607451273
Wind
(km/h)
20
E
15
ENE
20
WSW
25
SSE
25
S
30
SSE
30
SE
45
SE
25
SE
20
SSE
25
SSE
30
SW
35
SW
35
SSW
40
WSW
35
WSW
30
WSW
45
WNW
55
NW
55
NNW
60
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offcross-
on		crosscross-
on		cross-
on		crosscrosscrosscross-
on		cross-
on		onononcross-
on		oncross-
on		crosscross-
off		cross-
off		cross-
off
High Tide
/ height (m)
11:32AM
4.06
11:52PM
3.60
12:11PM
3.66
12:32AM
3.30
12:55PM
3.26
1:21AM
3.00
1:53PM
2.91
2:34AM
2.77
3:25PM
2.71
4:16AM
2.75
4:58PM
2.77
5:31AM
2.96
5:58PM
2.99
Low Tide
/ height (m)
6:29PM
0.80
6:28AM
0.98
6:57PM
1.10
7:01AM
1.24
7:31PM
1.37
7:48AM
1.49
8:24PM
1.60
9:08AM
1.68
10:08PM
1.72
11:23AM
1.65
12:03AM
1.57
12:44PM
1.39
1:02AM
1.28
Saturday
07
Sunday
08
Monday
09
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Sunrise7:50--7:48--7:47--7:46--7:43--7:41--7:39--
Sunset-5:13--5:15--5:16--5:19--5:21--5:22--5:24-
light rain
light rain
rain showers
rain showers
rain showers
rain showers
light rain
light rain
light rain
cloud
mod rain
part cloud
light rain
part cloud
light rain
cloud
rain showers
rain showers
light rain
rain showers
rain showers
Rain (mm)
221134324-6-1-2-12312
Temp. °C89999989999101099997466
Feels °C (?)37634310343531422-2-9-7-8
  • 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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View detailed surf forecast for Hells Mouth (Porth Neigwl) at:
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Information about the Hells Mouth (Porth Neigwl) Surf forecast

The above surf forecast table for Hells Mouth (Porth Neigwl) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Hells Mouth (Porth Neigwl) can be found by selecting the local surf guide option on the grey menu. Our Hells Mouth (Porth Neigwl) 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 (Hells Mouth (Porth Neigwl)) 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 Hells Mouth (Porth Neigwl) 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 Lleyn Peninsula? If you are looking for accommodation near Hells Mouth (Porth Neigwl), camping, hotels and holiday cottages in Lleyn Peninsula, consider staying in Porthmadog which is 32 km (20 miles) away. Other places in and around Lleyn Peninsula where you can find information about places to rent, and car hire include Anglesey which is 48 km (30 miles) away, Aberystwyth, Holyhead and Bangor.

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