Surf Forecasts:
Tenby (South Beach) surf forecast from 20 Jul 2026:
- Best quality surf: Sunday 26 Jul, 4AM (local time) - 7ft (2.1m), 7s period, W swell with offshore winds.
- Most powerful swell: Sunday 26 Jul, 7AM (local time) - 7ft (2.1m), 7s period, W swell with 491 kJ wave energy.
- Next surfable swell (1★+): Saturday 25 Jul, 10PM (local time) - 5.5ft (1.7m), 7s period with WSW swell.
Best Forecast Surf Conditions for Tenby (South Beach) this week:
The surf forecast for Tenby (South Beach) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jul 25) at 10PM. The primary swell is predicted to be 1.7m and 7s period with a secondary swell of 0.1m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Tenby (South Beach) in the next 16 days are 2.1m 7s and forecast to arrive on Sunday (Jul 26) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Saturday (Jul 25) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sat 25th Jul) | 5.5ft (1.7m) 7s |
| Best Surf | 4AM (Sun 26th Jul) | 7ft (2.1m) 7s |
| Most Powerful | 7AM (Sun 26th Jul) | 7ft (2.1m) 7s |
Table - best surf conditions forecast for Tenby (South Beach) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's cookin' for Tenby (South Beach) over the next couple of weeks.
Right off the bat, I gotta be straight with you—it’s a pretty grim start. The first week is basically a write-off for any kind of real surf. From Monday the 20th right through to Saturday the 26th of July, we're looking at nothing but tiny, weak dribble. Swell heights are barely a whisper, mostly 0.3 ft to 0.7 ft, with periods all over the shop but no real punch. The combined energy is laughably low, often in the single digits. The wind does clean up nicely at times, especially with that glassy Monday morning and some good offshore breezes, but without any swell to work with, it's a flat spell. You’d be better off with a snorkel than a surfboard.
Then, finally, on Sunday the 26th of July, the ocean wakes up. We get a jump to 6 ft of swell from the WSW, but here's the kicker—the period is a short, choppy 7 seconds. That's windswell, and it's gonna be messy. The energy reading hits 365 (moderate), but the "poor surf conditions" tag tells the story. It's a bit of a tease. Monday the 27th still has some 4 ft swell, but again, it's short period and the quality is just not there. This setup looks more interesting for a kite surfer than a paddle surfer, to be honest.
The real standout, and the only thing worth getting excited about, arrives on Thursday the 30th of July. The morning sees 4 ft, but the afternoon is where it's at—4 ft of swell from the west with a 6-second period, pushing the combined energy to 133 (moderate). The wind is offshore, coming from the WNW, and that's a major plus. It’ll be clean. For a sheltered spot like Tenby (South Beach), that's your best bet, but keep your expectations in check—it's still not a classic.
After that, it fades back into small stuff. Friday the 31st drops to 2 ft, and we're back to ankle-biters through the first few days of August. There's a little bump on Sunday the 2nd of August with 3 ft, but the cross-shore wind will chop it up, and Monday the 3rd offers 3 ft with cleaner conditions. Still, nothing to write home about.
So, the long and short of it: a long, flat stretch, one marginal day on the 30th, and then more small waves. It's a tough run for Tenby.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Tue afternoon, min 12°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Thu afternoon, min 14°C on Fri night). Winds increasing (calm on Thu night, fresh winds from the WNW by Sat morning). | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
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) | S 18 | SW 18 | SW 18 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | SW 13 | SW 13 | SW 12 | SW 12 | WSW 7 | WSW 7 | WSW 7 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 6 | 12 | 12 | 8 | 8 | 10 | 10 | 9 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 5 | 362 | 365 | 192 | 192 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross-off | glassy | off | cross-off | cross-off | off | cross-off | cross | off | cross-off | cross-off | cross-off | off | off | cross-off | off | cross-off | off | cross-off |
High Tide | 11:17AM6.85m | 11:38PM6.86m | 12:03PM6.38m | 00:27AM6.31m | 12:54PM5.95m | 1:22AM5.83m | 1:56PM5.63m | 2:30AM5.53m | 3:08PM5.51m | 3:45AM5.49m | 4:19PM5.64m | 4:51AM5.69m | 5:18PM5.95m | ||||||||
Low Tide | 5:11AM1.07m | 5:27PM1.37m | 5:55AM1.57m | 6:13PM1.84m | 6:43AM2.04m | 7:08PM2.28m | 7:41AM2.43m | 8:14PM2.57m | 8:51AM2.63m | 9:31PM2.64m | 10:06AM2.59m | 10:42PM2.47m | 11:09AM2.34m | 11:39PM2.14m | |||||||
 | |  | | | |  | | | | | | | |  |  | | | | | | |
 | 5:22 | — | — | 5:24 | — | — | 5:26 | — | — | 5:26 | — | — | 5:28 | — | — | 5:30 | — | — | 5:31 | — | — |
 | — | — | 9:24 | — | — | 9:23 | — | — | 9:22 | — | — | 9:21 | — | — | 9:20 | — | — | 9:17 | — | — | 9:16 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 18 | 21 | 22 | 16 | 18 | 21 | 20 | 22 | 24 | 19 | 21 | 21 | 18 | 16 | 17 | 16 | 19 | 18 | 15 |
Feels °C | 18 | 16 | 15 | 20 | 18 | 12 | 14 | 17 | 17 | 21 | 21 | 16 | 17 | 16 | 16 | 11 | 14 | 15 | 14 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 8 | W 8 | W 10 | NNW 4 | W 10 | W 10 | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | SW 12 | SW 12 | — | WSW 7 | — | — |
| kJ | 2 | 1 | 1 | 8 | 2 | 8 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 1 | 1 | 6 | 5 | — | 365 | — | — |
Swell 2 Height (m) Direction Period (s) | — | SW 18 | W 11 | W 7 | W 10 | SW 16 | SW 16 | SW 16 | SW 14 | — | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | — | — | — | — | — | — |
| kJ | — | 12 | 2 | 1 | 8 | 10 | 10 | 9 | 8 | — | 8 | 8 | 7 | 7 | 7 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 18 | W 11 | SW 18 | S 17 | W 7 | W 7 | — | — | NW 6 | SW 15 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 2 | 12 | 6 | 1 | 1 | — | — | 2 | 8 | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 2 | NNW 5 | N 4 | N 3 | NNW 5 | N 4 | N 4 | NNW 4 | N 4 | NNE 3 | NNW 2 | NNW 3 | — | WNW 4 | W 5 | W 6 | W 6 | WSW 7 | — | WSW 7 | WSW 7 |
| kJ | 1 | 2 | 10 | 1 | 8 | 13 | 10 | 11 | 10 | 1 | 1 | 1 | — | 10 | 28 | 52 | 72 | 362 | — | 192 | 192 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 189 | 346 | 365 | 88 | 181 | 194 | 353 | 378 | 68 | 122 | 189 | 393 | 1515 | 1350 | 1702 | 739 | 364 | 0 | 30 | 17 | 30 |
Best forecast wave conditions in Wales - Pembrokeshire | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Tenby (South Beach) Surf forecast
The above surf forecast table for Tenby (South Beach) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Tenby (South Beach) can be found by selecting the local surf guide option on the grey menu. Our Tenby (South Beach) 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 (Tenby (South Beach)) 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 Tenby (South Beach) 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 Wales - Pembrokeshire? If you are looking for accommodation near Tenby (South Beach), camping, hotels and holiday cottages in Wales - Pembrokeshire, consider staying in Pembroke which is 15 km (9 miles) away. Other places in and around Wales - Pembrokeshire where you can find information about places to rent, and car hire include Milford Haven which is 23 km (14 miles) away, Carmarthen, Fishguard and Aberporth.
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