Mawgan Porth surfForecast / Cornwall (North) / UK

information circle12 Day Weather and Surf, issued 5 pm Wednesday 17 Dec 2025 GMT
Forecast update in hr  min  s Forecast update imminent
Mawgan Porth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mawgan Porth sea temperature is
11.8° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Mawgan Porth this week:

The surf forecast for Mawgan Porth over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 18) at 3AM. The primary swell is predicted to be 4.0m and 21s period with a secondary swell of 1.6m and 9s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Mawgan Porth in the next 12 days are 5.0m 20s and forecast to arrive on Thursday (Dec 18) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 7s period and expected on Wednesday (Dec 24) at 6PM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Thu 18th Dec)13ft (4.0m) 21s
Best Surf 3AM (Thu 18th Dec)13ft (4.0m) 21s
Most Powerful 6AM (Thu 18th Dec)16ft (5.0m) 20s

Table - best surf conditions forecast for Mawgan Porth over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 22mm), heaviest during Thu morning. Very mild (max 13°C on Wed night, min 9°C on Thu morning). Winds decreasing (near gales from the SSW on Wed afternoon, light winds from the WSW by Thu morning).

Days 3-6 Weather Summary Heavy rain (total 47mm), heaviest during Sat afternoon. Very mild (max 10°C on Sun afternoon, min 7°C on Sat night). Mainly fresh winds.

Wed
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
!
0
0
0
0
2
0
!
5
!
!
4
2
3
2
0
1
1
0
Swell
Height Map
Wave Height (m) & direction (?)
3
W
2.5
W
5
WNW
4.5
W
4
W
4.5
W
4
W
3
W
2.1
W
3.5
WSW
1.8
W
4
W
3.5
W
2.5
W
1.9
W
1.5
W
1
W
0.7
W
0.6
W
0.4
W
0.5
W
Period(s) (?)111220191716161513121717161513131211101013
Wave
Graph
(?)Metric surfscale
Energy kJ (?)244918701739314589103599767811042841514347422109235639532431256712271114783287
Wind
(km/h)
50
SSW
25
SW
20
W
35
SSW
35
WSW
30
WSW
25
WSW
30
S
45
S
30
SSW
5
S
10
ENE
25
SSE
10
SSE
20
ESE
15
ESE
15
NE
20
ENE
25
ENE
15
E
25
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on
oncross-
on
ononcross-
on
crosscrosscrossglassoffcross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
offoffcross-
off
High Tide
/ height (m)
3:32PM
5.32
3:53AM
5.49
4:12PM
5.50
4:31AM
5.69
4:51PM
5.66
5:09AM
5.86
5:27PM
5.76
5:45AM
5.98
6:03PM
5.81
6:21AM
6.04
6:39PM
5.81
6:57AM
6.04
7:16PM
5.76
7:34AM
5.99
Low Tide
/ height (m)
9:50PM
1.41
10:12AM
1.32
10:29PM
1.24
10:51AM
1.13
11:06PM
1.09
11:29AM
1.00
11:43PM
0.98
12:05PM
0.92
12:18AM
0.93
12:42PM
0.91
12:54AM
0.94
1:19PM
0.95
1:30AM
1.00
Wed
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Sunrise--8:15--8:15--8:17--8:17--8:18--8:18--8:18
Sunset4:15--4:15--4:16--4:16--4:16--4:17--4:17--
light rain
light rain
heavy rain
rain showers
clear
rain showers
clear
part cloud
cloud
heavy rain
light rain
heavy rain
light rain
rain showers
clear
cloud
mod rain
light rain
part cloud
cloud
part cloud
Rain (mm)
43131-1---1231351--85---
Temp. °C1213101110101010119891089998887
Feels °C (?)256423432257524563231
  • 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 Mawgan Porth Surf forecast

The above surf forecast table for Mawgan Porth provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Mawgan Porth can be found by selecting the local surf guide option on the grey menu. Our Mawgan Porth 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 (Mawgan Porth) 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 Mawgan Porth 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 North Cornwall? If you are looking for accommodation near Mawgan Porth, camping, hotels and holiday cottages in North Cornwall, consider staying in Newquay which is 8 km (5 miles) away. Other places in and around North Cornwall where you can find information about places to rent, and car hire include Padstow which is 11 km (7 miles) away, Bodmin, Truro and Saint Austell.

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