Surf Forecasts:
St Agnes surf forecast from 6 Sep 2026:
- Best quality surf: Sunday 6 Sep, 10PM (local time) - 1.5ft (0.5m), 18s period, W swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 7AM (local time) - 7ft (2.2m), 14s period, W swell with 1,887 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 10PM (local time) - 1.5ft (0.5m), 18s period with W swell.
Best Forecast Surf Conditions for St Agnes this week:
The surf forecast for St Agnes over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 06) at 10PM. The primary swell is predicted to be 0.5m and 18s period with a secondary swell of 0.7m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at St Agnes in the next 16 days are 2.2m 14s and forecast to arrive on Monday (Sep 07) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Saturday (Sep 12) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 6th Sep) | 1.5ft (0.5m) 18s |
| Best Surf | 10PM (Sun 6th Sep) | 1.5ft (0.5m) 18s |
| Most Powerful | 7AM (Mon 7th Sep) | 7ft (2.2m) 14s |
Table - best surf conditions forecast for St Agnes over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cookin’ for the St Agnes area over the next couple of weeks. I’ll be straight with you – it’s a bit of a slow burn, so don’t expect much for a good while.
We’ve got a long, quiet stretch ahead. The first proper look at something worth paddling out for doesn’t show up until Monday, 21st September. Up until then, it’s mostly small, messy, or just plain poor conditions with the wind in the wrong place. There are a few moments with clean-looking water, but the swell energy is weak – we’re talkin’ combined energy values mostly under 300, which is barely a ripple. A couple of pulses mid-period, like on the 7th, push moderate energy (around 1783 and 1215), but the wind is choppin’ it all up. So, you’re better off waitin’.
The Standout – Monday, 21st September (Afternoon)
Finally, a window. Monday afternoon looks like the one to circle on the calendar. We’re lookin’ at a solid 13ft swell from the west at 10 seconds. That’s a lot of water – the combined energy is cranked right up to 2872, which is strong. The wind will be cross-shore from the WSW at 16 mph, keepin’ it rideable, and the skies will be clear. Now, this size is definitely for experienced surfers only. If you’re a beginner, this is a day to sit on the beach and watch. It’s big, but it could be special for those who know what they’re doin’ at St Agnes. The morning also has a pulse – 8ft from the WSW at 8 seconds – but that’s more marginal with the wind.
There’s nothing else that comes close to that Monday afternoon session. Everything else is a write-off or just not worth the drive. The water temp is sittin’ at a comfortable 64°F, which is a touch warmer than normal for this time of year.
Rusty, out.
Short Range ForecastModerate rain (total 11mm), heaviest on Mon night. Warm (max 22°C on Sun morning, min 14°C on Mon night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Fri morning, min 15°C on Wed night). Winds decreasing (fresh winds from the SW on Thu morning, light winds from the WNW by Fri afternoon). | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 9 | W 9 | W 16 | W 13 | W 12 | W 11 | W 9 | WNW 9 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | WSW 7 | WSW 8 | WSW 9 | WSW 9 | WSW 8 | W 8 | WSW 7 | W 8 | WNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 80 | 74 | 417 | 1783 | 1209 | 1026 | 526 | 677 | 704 | 459 | 213 | 111 | 240 | 655 | 567 | 329 | 207 | 124 | 252 | 624 | 345 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross | cross-on | cross | cross-off | cross-on | cross-on | cross-on | on | cross-on | cross-off | cross-off | cross-off | cross | cross-on | cross-on | off | cross-off | cross-off | cross-off |
High Tide | 1:16PM4.78m | 2:07AM4.73m | 2:47PM5.05m | 3:27AM5.10m | 3:55PM5.55m | 4:25AM5.59m | 4:47PM6.06m | 5:12AM6.03m | 5:31PM6.48m | 5:53AM6.36m | 6:11PM6.74m | 6:31AM6.55m | 6:48PM6.80m | ||||||||
Low Tide | 8:02PM1.80m | 8:43AM1.76m | 9:28PM1.42m | 9:55AM1.32m | 10:29PM0.91m | 10:49AM0.82m | 11:18PM0.45m | 11:34AM0.41m | 11:59PM0.11m | 12:14PM0.13m | 00:37AM-0.05m | 12:50PM0.01m | 1:11AM-0.04m | ||||||||
 |  |  |  | |  | | | | | |  | | | | | | | | | | |
 | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — |
 | — | 7:54 | — | — | 7:52 | — | — | 7:51 | — | — | 7:49 | — | — | 7:46 | — | — | 7:44 | — | — | 7:42 | — |
mm | — | — | — | — | — | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 |
Temp °C | 22 | 20 | 18 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 17 | 16 | 17 | 18 | 17 | 19 | 18 | 17 | 19 | 20 | 18 |
Feels °C | 18 | 17 | 18 | 13 | 13 | 13 | 10 | 9 | 10 | 11 | 13 | 13 | 13 | 16 | 16 | 16 | 16 | 16 | 16 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 16 | W 13 | W 12 | SW 12 | WNW 9 | S 11 | — | WNW 8 | WNW 9 | WNW 9 | N 6 | N 5 | WSW 9 | WSW 9 | WSW 8 | W 8 | NW 14 | SW 15 | WNW 8 |
| kJ | 80 | 74 | 417 | 1783 | 1209 | 5 | 100 | 2 | — | 459 | 213 | 111 | 2 | 1 | 567 | 329 | 207 | 124 | 7 | 8 | 345 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SW 12 | SW 12 | — | SW 12 | — | WNW 9 | — | — | SW 8 | WSW 8 | N 6 | W 12 | — | — | — | S 16 | — | SW 15 | — | S 14 |
| kJ | 16 | 6 | 6 | — | 6 | — | 188 | — | — | 67 | 78 | 18 | 11 | — | — | — | 5 | — | 8 | — | 4 |
Swell 3 Height (m) Direction Period (s) | — | W 20 | S 5 | — | — | — | SW 11 | — | — | — | N 6 | W 13 | W 12 | — | — | — | — | — | — | — | — |
| kJ | — | 8 | 10 | — | — | — | 5 | — | — | — | 32 | 3 | 11 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 4 | S 4 | WSW 9 | — | — | W 11 | W 9 | WNW 9 | WNW 8 | N 6 | — | WSW 8 | WSW 7 | WSW 8 | — | — | — | S 3 | WSW 7 | W 8 | — |
| kJ | 25 | 13 | 197 | — | — | 1026 | 526 | 677 | 704 | 31 | — | 51 | 240 | 655 | — | — | — | 6 | 252 | 624 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 117 | 22 | 15 | 23 | 56 | 211 | 103 | 222 | 222 | 56 | 29 | 15 | 284 | 213 | 15 | 23 | 15 | 0 | 15 | 15 | 15 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our St Agnes surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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 16 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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