Surf Forecasts:
St Agnes surf forecast from 30 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 1AM (local time) - 5ft (1.5m), 10s period, W swell with cross-offshore winds.
- Most powerful swell: Monday 31 Aug, 1AM (local time) - 10ft (3.0m), 9s period, W swell with 1,779 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 1AM (local time) - 5ft (1.5m), 10s 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 Tuesday (Sep 01) at 1AM. The primary swell is predicted to be 1.5m and 10s period with a secondary swell of 0.6m and 6s. 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 3.0m 9s and forecast to arrive on Monday (Aug 31) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 6s period and expected on Monday (Aug 31) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Tue 1st Sep) | 5ft (1.5m) 10s |
| Best Surf | 1AM (Tue 1st Sep) | 5ft (1.5m) 10s |
| Most Powerful | 1AM (Mon 31st Aug) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for St Agnes over the next 16 days.
The Lowdown
G'day, I'm Rusty, and let's take a look at the surf around St Agnes for the next couple of weeks. It's a bit of a mixed bag, so hang tight.
We start off with a bit of a struggle. The first few days are a washout, honestly. Sunday the 30th has some size with a 6ft WSW swell and 500 (moderate energy), but that 30 km/h cross-offshore wind is a nuisance, and the report says "poor surf conditions." The afternoon gets bigger to 8ft, but the wind picks up and the period drops to 8 seconds, which is messy. Monday the 31st is a total skip; a 10ft W swell with 1527 (strong energy) sounds heavy, but it's cross-on and lumpy, and that's expert-only territory with horrible conditions. Tuesday the 1st of September gives us a tiny window – a 4ft W swell with 200 (weak energy) and a clean cross-off breeze, but it's still rated as "very ordinary." The rest of that week and into the next is a long stretch of mediocrity, with a lot of poor surf and cross-onshore winds. There's a big surge on Friday the 4th of September – an 8ft W swell with 1389 (strong energy) and an 11-second period, but it's cross-shore and lumpy, so it's a tough one.
The saving grace, and the only real standout in this forecast, comes on Saturday the 12th of September. The morning is looking glassy, with a light southerly wind at 5 km/h, and a 4ft W swell with 284 (moderate energy). The report says "expect good surf conditions," and I'm stoked about that. The swell size is perfect for a fun session, and glassy conditions are a gift. The water temperature is a touch warmer than normal for this time of year, which is a nice bonus. That's your best bet, and it's a good one. After that, we drop off into tiny, weak surf again.
So, there's a lot of waiting around, but keep your eyes peeled for that Saturday morning. It's a rare gem in a rocky stretch.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Sun morning. Very mild (max 19°C on Sun morning, min 16°C on Sun afternoon). Winds decreasing (strong winds from the SW on Sun afternoon, light winds from the W by Mon night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Fri morning. Warm (max 20°C on Wed afternoon, min 16°C on Fri afternoon). Winds decreasing (fresh winds from the SW on Wed morning, light winds from the NW by Fri night). | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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) | WSW 9 | WSW 8 | W 9 | W 10 | W 10 | W 10 | W 9 | W 9 | W 8 | WSW 7 | WSW 8 | WSW 8 | W 8 | W 8 | W 12 | W 11 | W 11 | W 11 | WNW 10 | W 10 | W 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 500 | 705 | 1779 | 1527 | 1092 | 408 | 188 | 146 | 131 | 355 | 533 | 394 | 373 | 346 | 1098 | 1369 | 1134 | 708 | 435 | 245 | 148 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-on | cross-on | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross | cross | cross-off | cross | cross-on | cross-on | on | on | cross |
High Tide | 7:27PM6.57m | 7:44AM6.37m | 8:01PM6.51m | 8:19AM6.28m | 8:38PM6.31m | 8:58AM6.06m | 9:19PM5.97m | 9:41AM5.71m | 10:06PM5.53m | 10:33AM5.29m | 11:07PM5.05m | 11:43AM4.91m | 00:30AM4.71m | ||||||||
Low Tide | 1:27PM0.24m | 1:47AM0.20m | 1:59PM0.27m | 2:20AM0.30m | 2:34PM0.42m | 2:55AM0.54m | 3:12PM0.69m | 3:35AM0.89m | 3:57PM1.06m | 4:24AM1.31m | 4:55PM1.48m | 5:30AM1.73m | 6:18PM1.81m | ||||||||
 |  |  |  |  |  |  | | | | |  | | | | |  | | | |  | |
 | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — |
 | — | 8:09 | — | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | — | 7:58 | — |
mm | 3 | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — |
Temp °C | 19 | 18 | 16 | 16 | 16 | 16 | 18 | 18 | 17 | 19 | 20 | 18 | 19 | 18 | 19 | 19 | 16 | 16 | 17 | 17 | 15 |
Feels °C | 14 | 12 | 11 | 10 | 11 | 14 | 15 | 15 | 16 | 15 | 17 | 16 | 18 | 15 | 16 | 16 | 14 | 13 | 15 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | N 4 | — | — | — | W 10 | W 10 | W 9 | N 5 | SW 16 | SSW 16 | SW 15 | SSW 15 | W 8 | SW 15 | W 12 | SSW 14 | W 11 | W 11 | WNW 10 | W 10 | W 10 |
| kJ | 2 | — | — | — | 1092 | 408 | 188 | 2 | 10 | 25 | 37 | 21 | 373 | 60 | 1098 | 20 | 1134 | 708 | 435 | 245 | 148 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | SSW 6 | N 5 | SW 17 | SW 11 | S 10 | S 10 | — | SW 15 | S 9 | SW 15 | — | SW 14 | SSW 14 | SSW 14 | NNW 4 | N 5 |
| kJ | — | — | — | — | — | 25 | 5 | 12 | 5 | 2 | 2 | — | 36 | 2 | 37 | — | 33 | 20 | 18 | 6 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | N 5 | SW 18 | SW 17 | — | — | — | — | S 9 | — | — | — | SSW 14 | — | — | SSW 13 | SSW 13 |
| kJ | — | — | — | — | — | 13 | 12 | 12 | — | — | — | — | 2 | — | — | — | 20 | — | — | 17 | 17 |
Wind waves Height (m) Direction Period (s) | WSW 9 | WSW 8 | W 9 | W 10 | NNW 6 | — | — | W 9 | W 8 | WSW 7 | WSW 8 | WSW 8 | — | W 8 | — | W 11 | — | — | — | — | — |
| kJ | 500 | 705 | 1779 | 1527 | 34 | — | — | 146 | 131 | 355 | 533 | 394 | — | 346 | — | 1369 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 247 | 495 | 160 | 222 | 145 | 0 | 0 | 21 | 5 | 499 | 211 | 213 | 258 | 15 | 56 | 156 | 28 | 63 | 28 | 21 | 1 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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 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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