Surf Forecasts:
Port Isaac surf forecast from 29 Jul 2026:
- Most powerful swell: Wednesday 29 Jul, 10PM (local time) - 2ft (0.6m), 8s period, W swell with 51 kJ wave energy.
Best Forecast Surf Conditions for Port Isaac this week:
The most powerful waves expected at Port Isaac in the next 16 days are 0.6m 8s and forecast to arrive on Wednesday (Jul 29) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Wed 29th Jul) | 2ft (0.6m) 8s |
Table - best surf conditions forecast for Port Isaac over the next 16 days.
The Lowdown
Alright mates, Rusty here. Let’s talk about what’s coming for our local break.
Honestly, the first week and a half is a total bummer. We’re looking at a massive flat spell for Port Isaac. The water is 64°F, which is a touch warmer than average for this time of year, but that’s not gonna help you get a wave.
From Wednesday the 29th of July all the way through to the early hours of Friday the 7th of August, it’s nearly dead. The swell is tiny, barely getting over 3ft, with combined energy readings all in the low double digits, like 50 or even 11. The wind is mostly onshore or cross-on, and every single wave comment says “poor surf conditions.” A few glassy mornings on the 2nd and 3rd of August, but with swell heights of just 1ft, there’s nothing to ride. That’s a solid 9-day stretch of nothing.
Now, hold on to your board. Things kick off proper on Friday the 7th of August. A real swell shows up. Friday morning we get 5ft from the W with an 8-second period, and energy jumps to 368 (moderate). By Friday afternoon, it’s cranking at 8ft from the W, with energy at 950 (strong to very strong). That’s real, serious surf. The problem is the wind is cross-on from the WNW at 9 mph, so it’ll be a bit choppy and messy. That size is for experts only – over 8ft is no joke.
The absolute standout is Saturday morning, the 8th of August. The swell drops to a still very solid 6ft from the W, 8-second period, energy at 392 (strong). And the wind? Glassy. Southwest at 3 mph. The wave comment actually says “expect good surf conditions.” That’s the best call in the whole forecast. Clean, powerful waves at Port Isaac for the experienced crew. The afternoon will hang at 5ft, but the wind switches onshore from the N, so it’ll get messy.
After that, Sunday the 9th of August has a leftover 3ft to 3ft with some glassy moments, but it’s fading fast. From Monday the 10th onward, we’re back into small, choppy, poor conditions with energy dropping into the weak double digits.
So here’s the takeaway: a long, boring wait, but the payoff is a clean, solid Saturday morning on the 8th of August. That’s your one and only go-time.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Wed morning, min 15°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Mon morning, min 15°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | |||||||||||||||
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 | WNW 8 | WNW 5 | WNW 5 | WNW 5 | W 5 | W 6 | W 11 | WNW 5 | W 9 | W 8 | W 8 | W 8 | WSW 9 | WSW 9 | WSW 9 | N 5 | W 9 | W 9 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 50 | 31 | 22 | 29 | 20 | 13 | 28 | 22 | 9 | 36 | 25 | 22 | 22 | 12 | 29 | 26 | 26 | 22 | 7 | 6 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | on | cross-on | cross-on | on | on | cross-on | on | on | cross-on | glassy | cross-on | cross-on | cross | glassy | off | cross-off | glassy | glassy |
High Tide | 6:35PM6.29m | 6:53AM6.19m | 7:09PM6.54m | 7:26AM6.37m | 7:43PM6.71m | 8:00AM6.48m | 8:16PM6.78m | 8:33AM6.50m | 8:50PM6.74m | 9:08AM6.43m | 9:26PM6.60m | 9:46AM6.27m | 10:06PM6.35m | ||||||||
Low Tide | 12:30PM1.10m | 00:53AM0.95m | 1:05PM0.86m | 1:27AM0.74m | 1:37PM0.69m | 1:59AM0.62m | 2:09PM0.62m | 2:31AM0.59m | 2:42PM0.64m | 3:04AM0.65m | 3:16PM0.76m | 3:39AM0.80m | 3:53PM0.95m | ||||||||
 |  |  | | |  | |  | | | |  | | | | | | | | | | |
 | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — |
 | — | — | 9:08 | — | — | 9:07 | — | — | 9:06 | — | — | 9:04 | — | — | 9:02 | — | — | 9:00 | — | — | 9:00 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 17 | 17 | 17 | 16 | 17 | 17 | 15 | 17 | 16 | 15 | 19 | 18 | 18 | 24 | 22 | 19 | 18 | 20 | 18 |
Feels °C | 19 | 18 | 16 | 15 | 14 | 14 | 14 | 13 | 12 | 15 | 13 | 13 | 17 | 16 | 16 | 21 | 21 | 18 | 17 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 10 | WNW 8 | WNW 5 | WNW 8 | W 8 | W 5 | W 6 | W 7 | WNW 5 | W 9 | W 8 | W 8 | W 8 | NW 4 | WSW 9 | WSW 9 | N 5 | WSW 8 | WSW 7 | N 4 |
| kJ | 50 | 17 | 22 | 29 | 12 | 11 | 28 | 22 | 4 | 36 | 25 | 22 | 22 | 12 | 9 | 26 | 26 | 22 | 6 | 5 | 5 |
Swell 2 Height (m) Direction Period (s) | — | — | W 10 | WNW 8 | — | — | — | W 12 | W 9 | W 10 | — | W 4 | — | W 10 | WSW 9 | NNW 5 | N 5 | WSW 8 | N 4 | W 9 | WSW 7 |
| kJ | — | — | 7 | 22 | — | — | — | 3 | 6 | 30 | — | 3 | — | 8 | 29 | 4 | 4 | 14 | 2 | 6 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 11 | — | — | — | — | — | — | — | — | W 10 | W 9 | — | W 9 |
| kJ | — | — | — | — | — | — | — | — | 9 | — | — | — | — | — | — | — | — | 2 | 7 | — | 6 |
Wind waves Height (m) Direction Period (s) | — | W 8 | W 4 | — | WNW 5 | WNW 5 | N 4 | NNW 4 | WNW 4 | — | WNW 5 | NNW 3 | N 3 | NNW 3 | — | — | — | — | NE 3 | NNE 3 | — |
| kJ | — | 31 | 10 | — | 20 | 13 | 10 | 3 | 5 | — | 15 | 2 | 1 | 3 | — | — | — | — | 2 | 3 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 62 | 227 | 227 | 250 | 288 | 250 | 67 | 288 | 69 | 62 | 85 | 15 | 67 | 67 | 288 | 19 | 15 | 15 | 288 | 92 | 235 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Port Isaac Surf forecast
The above surf forecast table for Port Isaac provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Port Isaac can be found by selecting the local surf guide option on the grey menu. Our Port Isaac 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 (Port Isaac) 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 Port Isaac 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 North Cornwall? If you are looking for accommodation near Port Isaac, camping, hotels and holiday cottages in North Cornwall, consider staying in Padstow which is 8 km (5 miles) away. Other places in and around North Cornwall where you can find information about places to rent, and car hire include Bodmin which is 15 km (9 miles) away, Newquay, Par and Saint Austell.
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