Surf Forecasts:
Perranuthnoe surf forecast from 15 Aug 2026:
- Best quality surf: Saturday 22 Aug, 1AM (local time) - 2.5ft (0.7m), 8s period, WNW swell with cross-offshore winds.
- Most powerful swell: Friday 21 Aug, 1AM (local time) - 7ft (2.1m), 10s period, WNW swell with 784 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 1AM (local time) - 2.5ft (0.7m), 8s period with WNW swell.
Best Forecast Surf Conditions for Perranuthnoe this week:
The surf forecast for Perranuthnoe over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 22) at 1AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.5m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Perranuthnoe in the next 16 days are 2.1m 10s and forecast to arrive on Friday (Aug 21) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Sunday (Aug 16) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 22nd Aug) | 2.5ft (0.7m) 8s |
| Best Surf | 1AM (Sat 22nd Aug) | 2.5ft (0.7m) 8s |
| Most Powerful | 1AM (Fri 21st Aug) | 7ft (2.1m) 10s |
Table - best surf conditions forecast for Perranuthnoe over the next 16 days.
The Lowdown
Alright, I’ll level with ya – the next couple of weeks around Perranuthnoe are looking pretty flat and frustrating for the most part. There is only one brief window that stands out as worth paddling out, and that’s flying under the radar.
The first glimmer of hope comes on Thursday the 21st of August in the morning, but it's more of a tease than anything serious. Swell is from the WNW at 6ft with a 9-second period, and the wind is cross-offshore from the NNW at 15 mph, so the surface should be clean. But honestly, wave quality is only marginal, with moderate wave energy (512) – it’s really just for the diehards who need a paddle. By the afternoon the swell drops to 4ft and it’s a bit weak for the effort.
Now, the standout – and I mean the only real standout – is Saturday the 22nd of August. It’s not big, but it’s about as clean as it’ll get in this run. Saturday morning sees the wind shifting to light offshore from the NE at just 3 mph, with tiny 2ft windswell from the west at 6 seconds. The energy is low (66), but the conditions are glassy, clean, and the water at Perranuthnoe is a touch warmer than normal at 66°F. This is a beginner-friendly wave, small and gentle, and because it’s a fairly consistent spot exposed to SW swells, you’ll get the odd little lump. Afternoon stays clean with the same tiny size.
Heads up though – after that, it goes dead. From Sunday the 23rd of August right through to Sunday the 30th of August, the swell drops to knee-high or below, with most days showing 0.7ft to 1ft and very weak energy (often in the single digits or low tens). The wind stays cross-off or offshore, so it’s not choppy, but there’s just nothing to surf. Even the long-period groundswells on the 23rd and 24th (14 seconds!) don’t deliver any size – you’d be floating with zero push.
So the bottom line: if you’re desperate for a splash, hit Saturday the 22nd for a clean, tiny session. Otherwise, the whole 16-day window is more suited to a beach walk than a surf. It’s a quiet spell, but in this area, that’s not unusual – forecasts can flip.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sat morning, min 16°C on Sat night). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Tue night. Warm (max 20°C on Tue morning, min 16°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||
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 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 9 | WNW 8 | WNW 7 | W 5 | W 6 | WNW 6 | WNW 7 | WNW 9 | WNW 8 | W 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 86 | 120 | 55 | 27 | 37 | 15 | 44 | 147 | 62 | 34 | 60 | 133 | 172 | 315 | 427 | 632 | 696 | 784 | 485 | 270 | 51 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-off | cross | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off |
High Tide | 7:27PM5.66m | 7:47AM5.36m | 8:04PM5.49m | 8:23AM5.19m | 8:41PM5.25m | 8:59AM4.98m | 9:17PM4.96m | 9:37AM4.73m | 9:56PM4.63m | 10:21AM4.46m | 10:45PM4.30m | 11:22AM4.20m | 00:00AM4.03m | ||||||||
Low Tide | 1:56PM0.68m | 2:22AM0.66m | 2:35PM0.81m | 2:59AM0.88m | 3:10PM1.05m | 3:34AM1.18m | 3:45PM1.35m | 4:07AM1.51m | 4:20PM1.68m | 4:43AM1.85m | 5:02PM2.01m | 5:29AM2.16m | 6:00PM2.29m | ||||||||
 | |  | | | |  | |  |  |  |  | | | | |  | | | | | |
 | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — |
 | — | 8:40 | — | — | 8:38 | — | — | 8:37 | — | — | 8:35 | — | — | 8:32 | — | — | 8:30 | — | — | 8:29 | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | 4 | — | 2 | 3 | 1 | — | — |
Temp °C | 19 | 18 | 16 | 19 | 19 | 19 | 18 | 18 | 18 | 20 | 20 | 18 | 18 | 18 | 17 | 18 | 18 | 17 | 16 | 17 | 16 |
Feels °C | 15 | 13 | 11 | 17 | 16 | 19 | 16 | 15 | 17 | 18 | 19 | 15 | 12 | 12 | 12 | 12 | 13 | 12 | 11 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 9 | SW 18 | W 9 | NW 6 | W 7 | WNW 6 | SSW 16 | WNW 11 | SSW 15 | W 9 | SSW 14 | SSW 14 | WNW 9 | WNW 9 | WNW 8 |
| kJ | 86 | 120 | 55 | 27 | 37 | 15 | 40 | 12 | 13 | 11 | 17 | 133 | 24 | 23 | 22 | 632 | 41 | 19 | 485 | 270 | 51 |
Swell 2 Height (m) Direction Period (s) | WSW 8 | S 12 | S 12 | WSW 8 | S 18 | — | S 18 | — | SW 16 | W 8 | SW 17 | SSW 17 | — | SSW 16 | — | SSW 14 | — | SSW 14 | SSW 13 | SSW 13 | W 8 |
| kJ | 19 | 3 | 3 | 11 | 7 | — | 6 | — | 10 | 19 | 11 | 29 | — | 24 | — | 21 | — | 18 | 17 | 17 | 37 |
Swell 3 Height (m) Direction Period (s) | — | — | S 20 | S 12 | — | S 18 | — | — | S 19 | SSW 17 | — | SSW 17 | — | — | — | — | — | — | SW 16 | SSW 16 | N 5 |
| kJ | — | — | 7 | 3 | — | 6 | — | — | 7 | 28 | — | 29 | — | — | — | — | — | — | 10 | 25 | 13 |
Wind waves Height (m) Direction Period (s) | N 5 | N 5 | N 5 | N 5 | N 4 | WNW 4 | WNW 5 | WNW 8 | WNW 7 | W 5 | W 6 | — | WNW 7 | WNW 9 | WNW 8 | — | WNW 10 | WNW 10 | — | N 5 | — |
| kJ | 34 | 36 | 57 | 15 | 3 | 10 | 44 | 147 | 62 | 34 | 60 | — | 172 | 315 | 427 | — | 696 | 784 | — | 20 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 243 | 498 | 229 | 243 | 401 | 465 | 242 | 414 | 204 | 258 | 842 | 3 | 243 | 572 | 273 | 170 | 545 | 84 | 100 | 100 | 0 |
Best forecast wave conditions in South Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Perranuthnoe Surf forecast
The above surf forecast table for Perranuthnoe provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Perranuthnoe can be found by selecting the local surf guide option on the grey menu. Our Perranuthnoe 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 (Perranuthnoe) 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 Perranuthnoe 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 South Cornwall? If you are looking for accommodation near Perranuthnoe, camping, hotels and holiday cottages in South Cornwall, consider staying in Penzance which is 7 km (4 miles) away. Other places in and around South Cornwall where you can find information about places to rent, and car hire include Camborne which is 15 km (9 miles) away, Penryn, The Lizard and Falmouth.
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