Surf Forecasts:
Harlyn surf forecast from 15 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 1PM (local time) - 4.5ft (1.4m), 8s period, W swell with 277 kJ wave energy.
Best Forecast Surf Conditions for Harlyn this week:
The most powerful waves expected at Harlyn in the next 16 days are 1.4m 8s and forecast to arrive on Thursday (Aug 20) at 1PM. 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 | 1PM (Thu 20th Aug) | 4.5ft (1.4m) 8s |
Table - best surf conditions forecast for Harlyn over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let’s be straight, mate—this forecast for Harlyn is a tough one. We’re looking at a full 16-day window and, honestly, there’s nothing here that’s going to get the stoke up. The first surf recommendation doesn’t show up because every single session across the whole period is rated as poor surf conditions. That’s a massive gap of 16 days with no worthwhile options. It’s a real downer for a spot that’s sheltered from most swell, and when it does pick up, the wind is hammering it.
Kicking off Saturday the 15th of August, we’ve got a tiny 2.6 ft W swell pushing in with a short 8-second period, so the energy is weak (117). But the onshore wind from the N at 15 mph is just messing it all up. Water temp is sitting at 66.7°, which is 4.3° warmer than normal—very unusual for this time of year, so it feels like a warm bath, but that’s about the only positive. Every day after that through to the end of the month is the same story: small, weak swell with onshore or cross-onshore wind. On Monday the 17th, we get a bit of a boost to 3.0 ft from the WNW, but the wind is cross-shore and lumpy. Through the middle of the week, the swell picks up a touch—on Thursday the 20th, we see 5.9 ft from the W (moderate energy at 480) but it’s being thrashed by fresh cross-onshore wind and lumpy conditions. That’s too much size for beginners and with the wind it’s a messy close-out.
By Sunday the 23rd, there’s 5.2 ft NNE swell but it’s a short period windswell with onshore winds, so no joy. The end of the month—Friday the 28th—shows a glassy morning from the SE, but we’re only getting tiny 1.3 ft with a long period of 9 seconds (weak energy at 32). It’s clean but there’s nothing to ride. For an inconsistent, sheltered spot like Harlyn, this blank run isn’t a huge surprise—it tends to go quiet. Forecasts can change, but right now, there’s nothing for kite surfing, let alone a paddle surfer. Hang in there.
Short Range ForecastMostly dry. Very mild (max 19°C on Sun night, min 16°C on Sat night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Wed morning. Very mild (max 19°C on Tue morning, min 16°C on Thu 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 | N 5 | W 7 | W 7 | WNW 4 | WNW 9 | WNW 8 | W 7 | WNW 6 | WNW 6 | W 6 | WNW 6 | WNW 9 | WNW 6 | WNW 8 | W 9 | W 9 | WNW 6 | W 9 | W 8 |
Wave Graph | |||||||||||||||||||||
82 | 74 | 44 | 27 | 16 | 13 | 28 | 101 | 79 | 121 | 74 | 81 | 56 | 162 | 115 | 264 | 257 | 76 | 90 | 52 | 45 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-on | cross | cross-on | cross | cross-off | cross | cross | cross-on | cross | cross | cross | cross | cross-on | cross-on | on | cross-on | on |
High Tide | 8:03PM7.06m | 8:23AM6.66m | 8:41PM6.78m | 9:00AM6.37m | 9:19PM6.35m | 9:38AM5.98m | 9:57PM5.84m | 10:17AM5.52m | 10:38PM5.30m | 11:01AM5.06m | 11:28PM4.80m | 11:59AM4.65m | 00:39AM4.43m | ||||||||
Low Tide | 2:00PM0.06m | 2:24AM0.09m | 2:37PM0.26m | 3:00AM0.40m | 3:13PM0.60m | 3:35AM0.82m | 3:50PM1.03m | 4:11AM1.29m | 4:29PM1.50m | 4:51AM1.77m | 5:16PM1.96m | 5:43AM2.20m | 6:22PM2.34m | ||||||||
6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:16 | — | — | |
— | 8:39 | — | — | 8:38 | — | — | 8:37 | — | — | 8:35 | — | — | 8:32 | — | — | 8:30 | — | — | 8:29 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 2 | 1 | — | 2 | 1 | — | 3 |
Temp °C | 17 | 17 | 16 | 17 | 18 | 19 | 19 | 17 | 19 | 19 | 18 | 18 | 17 | 18 | 17 | 17 | 18 | 18 | 15 | 16 | 16 |
Feels °C | 12 | 12 | 11 | 15 | 15 | 18 | 19 | 15 | 17 | 17 | 15 | 16 | 14 | 12 | 11 | 13 | 14 | 15 | 10 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 6 | WNW 8 | W 16 | W 8 | W 8 | W 6 | WNW 6 | SW 16 | W 9 | WNW 8 | WSW 14 | W 9 | WNW 6 | W 6 | W 8 |
82 | 74 | 40 | 27 | 16 | 8 | 28 | 101 | 5 | 12 | 10 | 81 | 56 | 10 | 54 | 264 | 20 | 76 | 90 | 34 | 45 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | WSW 8 | W 18 | W 18 | NW 5 | SW 18 | — | SW 17 | SW 17 | SW 17 | W 9 | — | WSW 15 | SW 14 | — | WSW 14 | W 9 | W 9 | N 4 |
— | — | — | 6 | 7 | 6 | 18 | 12 | — | 11 | 11 | 12 | 39 | — | 23 | 8 | — | 19 | 39 | 52 | 6 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | W 11 | WNW 9 | — | — | — | — | — | SW 16 | — | — | — | — | — | WNW 8 | SW 13 | W 9 |
— | — | — | — | — | 2 | 26 | — | — | — | — | — | 10 | — | — | — | — | — | 7 | 7 | 24 | |
Wind waves Height (m) Direction Period (s) | N 5 | N 5 | N 5 | N 4 | NW 5 | WNW 4 | — | — | W 7 | WNW 6 | WNW 6 | — | N 4 | WNW 9 | WNW 6 | — | W 9 | W 6 | — | N 4 | — |
35 | 47 | 44 | 9 | 11 | 13 | — | — | 79 | 121 | 74 | — | 3 | 162 | 115 | — | 257 | 73 | — | 15 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 283 | 521 | 246 | 246 | 401 | 488 | 281 | 416 | 227 | 237 | 809 | 57 | 284 | 517 | 311 | 119 | 545 | 51 | 69 | 69 | 56 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Harlyn Surf forecast
The above surf forecast table for Harlyn provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Harlyn can be found by selecting the local surf guide option on the grey menu. Our Harlyn 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 (Harlyn) 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 Harlyn 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.
Harlyn is 6 km (4 miles) from Padstow. If you plan a holiday in North Cornwall, look for hotels and other accommodation in Padstow. Padstow has rooms for a wide range of budgets as well as car hire and transport links.










