
Surf Forecasts:
Porthtowan surf forecast from 1 Aug 2026:
- Best quality surf: Monday 3 Aug, 4AM (local time) - 2.5ft (0.8m), 8s period, WSW swell with glassy winds.
- Most powerful swell: Wednesday 5 Aug, 4PM (local time) - 5.5ft (1.7m), 7s period, WSW swell with 279 kJ wave energy.
- Next surfable swell (1★+): Monday 3 Aug, 4AM (local time) - 2.5ft (0.8m), 8s period with WSW swell.
Best Forecast Surf Conditions for Porthtowan this week:
The surf forecast for Porthtowan over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 03) at 4AM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.2m and 3s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Porthtowan in the next 16 days are 1.7m 7s and forecast to arrive on Wednesday (Aug 05) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 4s period and expected on Sunday (Aug 02) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Mon 3rd Aug) | 2.5ft (0.8m) 8s |
| Best Surf | 4AM (Mon 3rd Aug) | 2.5ft (0.8m) 8s |
| Most Powerful | 4PM (Wed 5th Aug) | 5.5ft (1.7m) 7s |
Table - best surf conditions forecast for Porthtowan over the next 16 days.
The Lowdown
Right, grab a coffee, sit down. I’ve been through the charts for the next couple of weeks here at Porthtowan, and to be honest, it’s a pretty grim run. The honest truth is there’s nothing in the 16-day window that I’d call a good surf option. The swell is tiny, the wind is often messy, and the energy just isn’t there.
The first few days are a write-off. Saturday 1st August and Sunday 2nd August have minimal swell, around 2 ft, with a lot of cross-on or onshore wind, so it’s mostly choppy and poor. The water temperature is sitting at 65°, which is a touch warmer than normal for this time of year, but that’s the only bright spot.
Monday 3rd August morning is the closest we get to a “maybe” session. There’s a small 3 ft groundswell from the WSW, with a period of 8 seconds, and the wind goes glassy. The combined wave energy is weak (102), so it’s not going to have any punch, but it’ll be clean. If you’re a beginner and absolutely need a paddle, that’s your window. But it’s ordinary at best.
After that, it’s a long gap of nothing. The wind gets up on Tuesday 4th and Wednesday 5th, with 15 mph cross-winds and a little more swell, but the period is short – 7 seconds – and the wave state is just choppy and poor. The energy is moderate (276) on Wednesday 5th morning, but the quality is so low it’s not worth the drive.
We get a brief glassy moment again on Friday 7th August morning, but with only 1 ft of swell, you’re looking at knee-high dribble. The energy is just 32 (weak). Not worth it.
The pattern stays dead through the middle of the month. Saturday 8th, Sunday 9th, and Monday 10th are all dominated by onshore or cross-onshore winds and tiny waves. Tuesday 11th August has a clean offshore wind from the ESE, but the swell is only 0.7 ft, which is flat. The following Wednesday 12th morning shows a tiny pulse of 3 ft swell from the WSW with a period of 9 seconds, offshore wind, and clean conditions. The energy is moderate (104), but it’s still very small. If you’re a longboarder and desperate, you could get a glide, but there’s no power.
From Thursday 13th onwards, the wind gets ugly again. Friday 14th and Saturday 15th have strong to fresh breezes, rain showers, and messy cross-onshore conditions. The wave energy is weak (41 to 77). The last day of the forecast, Sunday 16th August, has a little more swell (2 ft) but the wind is cross-onshore and the energy is moderate (103) – still poor.
Bottom line: we’ve got a blank run here. Several breaks in this area are fairly consistent, so it tends not to stay this poor for long, and forecasts can change. But for now, the only thing worth a look is Monday 3rd August morning for a clean, gentle session if you’re just getting started. Everything else is a no-go.
Rusty
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 23°C on Mon morning, min 13°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Tue morning, min 15°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
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 8 | W 8 | SW 8 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | SW 8 | SW 7 | SW 6 | WSW 7 | WSW 7 | W 6 | WNW 6 | W 6 | W 6 | W 9 | W 9 | W 9 |
Wave Graph | |||||||||||||||||||||
41 | 39 | 35 | 35 | 18 | 103 | 99 | 78 | 51 | 125 | 116 | 80 | 269 | 279 | 215 | 170 | 88 | 30 | 16 | 15 | 14 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | off | cross | cross | glassy | cross-on | cross-off | cross-off | cross | cross | cross | cross-on | on | on | on | on | glassy | on | cross-on |
High Tide | 7:55PM6.23m | 8:12AM5.97m | 8:29PM6.20m | 8:47AM5.91m | 9:05PM6.07m | 9:25AM5.77m | 9:45PM5.85m | 10:08AM5.55m | 10:32PM5.55m | 11:00AM5.27m | 11:30PM5.22m | 12:05PM5.02m | 00:44AM4.96m | ||||||||
Low Tide | 1:55PM0.57m | 2:17AM0.54m | 2:27PM0.60m | 2:50AM0.60m | 3:02PM0.71m | 3:25AM0.75m | 3:39PM0.89m | 4:05AM0.97m | 4:23PM1.14m | 4:52AM1.25m | 5:17PM1.42m | 5:53AM1.54m | 6:29PM1.65m | ||||||||
5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | |
— | — | 9:05 | — | — | 9:02 | — | — | 9:01 | — | — | 9:00 | — | 8:58 | — | — | 8:57 | — | — | 8:54 | — | |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 15 | 20 | 21 | 17 | 23 | 22 | 19 | 22 | 22 | 18 | 21 | 21 | 17 | 17 | 17 | 16 | 18 | 18 | 17 |
Feels °C | 14 | 14 | 13 | 18 | 19 | 15 | 21 | 19 | 19 | 20 | 19 | 16 | 18 | 18 | 14 | 13 | 14 | 14 | 16 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 5 | W 9 | W 8 | W 8 | SW 8 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | W 9 | W 9 | W 8 | SW 13 | SW 13 | SW 13 | W 10 | N 5 | W 6 | W 5 | W 5 | NW 5 |
14 | 39 | 35 | 35 | 17 | 103 | 99 | 78 | 51 | 7 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 30 | 14 | 8 | 6 | |
Swell 2 Height (m) Direction Period (s) | W 9 | WNW 4 | WNW 4 | N 3 | W 10 | E 4 | N 4 | N 5 | N 4 | SW 15 | SW 15 | SW 14 | — | — | W 11 | SW 12 | W 10 | N 4 | W 9 | W 9 | W 9 |
41 | 7 | 1 | 1 | 18 | 1 | 3 | 4 | 2 | 8 | 8 | 8 | — | — | 3 | 6 | 17 | 6 | 16 | 15 | 14 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | WNW 6 | W 8 | — | — | E 7 | S 15 | — | — | W 11 | — | — | — | SW 16 | SW 12 | W 10 | N 5 | SW 12 | SW 11 |
— | — | — | 4 | 5 | — | — | 1 | 4 | — | — | 3 | — | — | — | 10 | 6 | 17 | 2 | 6 | 5 | |
Wind waves Height (m) Direction Period (s) | — | NW 4 | N 3 | NNE 3 | — | NNE 3 | — | — | — | SW 8 | SW 7 | SW 6 | WSW 7 | WSW 7 | W 6 | WNW 6 | W 6 | — | — | — | — |
— | 7 | 1 | 1 | — | 2 | — | — | — | 125 | 116 | 80 | 269 | 279 | 215 | 170 | 88 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 22 | 23 | 82 | 280 | 22 | 12 | 0 | 17 | 5 | 17 | 17 | 250 | 251 | 2141 | 20 | 104 | 415 | 22 | 236 | 519 | 396 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Porthtowan Surf forecast
The above surf forecast table for Porthtowan provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Porthtowan can be found by selecting the local surf guide option on the grey menu. Our Porthtowan 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 (Porthtowan) 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 Porthtowan 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.
Porthtowan is 8 km (5 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.











