St Agnes surfForecast / Cornwall (North) / UK

information circle12 Day Weather and Surf, issued 11 am Tuesday 16 Dec 2025 GMT
Forecast update in hr  min  s Forecast update imminent
St Agnes surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's St Agnes sea temperature is
12.0° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for St Agnes this week:

The surf forecast for St Agnes over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Dec 16) at 9PM. The primary swell is predicted to be 2.5m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at St Agnes in the next 12 days are 7.0m 20s and forecast to arrive on Thursday (Dec 18) at 12PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Wednesday (Dec 17) at 6AM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Tue 16th Dec)8ft (2.5m) 14s
Best Surf 9PM (Wed 17th Dec)15ft (4.5m) 11s
Most Powerful12PM (Thu 18th Dec)23ft (7.0m) 20s

Table - best surf conditions forecast for St Agnes over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 50mm), heaviest during Thu morning. Very mild (max 12°C on Wed night, min 8°C on Tue night). Winds increasing (light winds from the WNW on Tue afternoon, near gales from the S by Thu morning).

Days 3-6 Weather Summary Moderate rain (total 15mm), heaviest on Sat morning. Very mild (max 11°C on Fri night, min 6°C on Sat night). Mainly strong winds.

Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
2
4
1
0
!
!
!
!
!
!
!
2
!
!
!
!
!
2
2
0
Swell
Height Map
Wave Height (m) & direction (?)
3
W
3
W
2.5
W
2
W
3
W
4
WSW
6.5
W
6.5
W
5.5
W
5
W
4.5
W
3.5
W
1.9
WNW
4
WSW
3.5
W
4
W
4.5
W
4
W
2.5
WNW
1.9
WNW
1.4
W
Period(s) (?)151414131212211918171615131213161615131211
Wave
Graph
(?)Metric surfscale
Energy kJ (?)4020325326511401258040133415730274185881510210475512012884586394971479129627121871035501
Wind
(km/h)
20
NNW
15
NNW
15
S
40
SSW
50
SSW
10
W
20
SE
30
W
35
WSW
25
WSW
25
SW
30
S
45
S
15
WSW
20
SSW
10
SE
10
SE
20
ENE
10
N
5
W
15
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononcross-
off
cross-
off
cross-
off
crossoffcrosscrosscrosscross-
off
cross-
off
offcrosscross-
off
offoffcrosscross-
on
cross-
on
cross-
on
High Tide
/ height (m)
2:42PM
5.00
3:06AM
5.13
3:27PM
5.18
3:48AM
5.34
4:07PM
5.35
4:26AM
5.54
4:45PM
5.50
5:03AM
5.70
5:22PM
5.61
5:40AM
5.82
5:58PM
5.65
6:16AM
5.87
6:34PM
5.65
Low Tide
/ height (m)
9:03PM
1.53
9:27AM
1.47
9:46PM
1.36
10:08AM
1.27
10:25PM
1.19
10:47AM
1.09
11:02PM
1.04
11:25AM
0.96
11:39PM
0.94
12:02PM
0.88
12:15AM
0.89
12:38PM
0.87
12:50AM
0.90
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Sunrise8:14--8:15--8:15--8:15--8:17--8:17--8:18--
Sunset-4:16--4:17--4:17--4:17--4:19--4:19--4:19-
cloud
clear
part cloud
light rain
heavy rain
light rain
heavy rain
rain showers
clear
clear
clear
rain showers
mod rain
light rain
part cloud
clear
light rain
part cloud
cloud
light rain
rain showers
Rain (mm)
---41132012---175--2--43
Temp. °C101010101112121191010111188887989
Feels °C (?)563224151342244443665
  • 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 St Agnes Surf forecast

The above surf forecast table for St Agnes provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at St Agnes can be found by selecting the local surf guide option on the grey menu. Our St Agnes 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 (St Agnes) 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 St Agnes 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.

St Agnes is 13 km (8 miles) from Camborne. If you plan a holiday in North Cornwall, look for hotels and other accommodation in Camborne. Camborne has rooms for a wide range of budgets as well as car hire and transport links.

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