Surf Forecasts:
Tenby (South Beach) surf forecast from 10 Aug 2026:
- Best quality surf: Thursday 13 Aug, 10AM (local time) - 3.5ft (1.0m), 10s period, WSW swell with offshore winds.
- Most powerful swell: Thursday 13 Aug, 10AM (local time) - 3.5ft (1.0m), 10s period, WSW swell with 222 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 10AM (local time) - 3.5ft (1.0m), 10s 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 Thursday (Aug 13) at 10AM. The primary swell is predicted to be 1.0m and 10s period. 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 1.0m 10s and forecast to arrive on Thursday (Aug 13) at 10AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Friday (Aug 14) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Thu 13th Aug) | 3.5ft (1.0m) 10s |
| Best Surf | 10AM (Thu 13th Aug) | 3.5ft (1.0m) 10s |
| Most Powerful | 10AM (Thu 13th Aug) | 3.5ft (1.0m) 10s |
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 coming up for Tenby. It’s a bit of a slow start, but there’s a light at the end of the tunnel if you’re patient.
Right now, the forecast is pretty quiet. The first few days are a write-off for any decent waves. We’re looking at a long gap with no real surf on offer from now until late in the month. The swell is tiny, the energy is weak, and the conditions just aren’t lining up for a good paddle.
Things finally start to change around Saturday the 22nd. The afternoon sees a bit of a jump in size with a 5ft swell from the SW, but it’s a short-period windswell, so it’ll be a bit lumpy and won’t have much push. The real standout, and the only one worth making a plan for, is Sunday the 23rd of August.
That morning, Tenby (South Beach) is looking like the best bet by a long shot. We’ve got a solid 8ft swell rolling in from the W, with a period of 9 seconds. That’s a moderate amount of energy pushing through (836). The wind is a clean offshore from the NNW at 12 mph, which is a major positive. The water is feeling much warmer than normal for this time of year at 66°. Now, that 8ft is pushing into the "experts only" territory for most, and it’s a fairly consistent spot, but it can get busy. This is the one window where the stars align, so if you’re a competent surfer, get on it. The afternoon drops off slightly, but still has some decent 7ft waves.
After that, it drops back down to tiny, weak surf for the rest of the 16-day window. The last week is a bust, with barely any energy and poor surf quality. So, if you’re keen, that Sunday is your only real chance to get a proper wave.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Wed afternoon, min 15°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Thu morning, min 14°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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) | WSW 6 | SW 6 | SW 7 | SW 6 | W 9 | WSW 11 | WSW 10 | WSW 10 | WSW 9 | WSW 10 | WSW 10 | WSW 10 | W 9 | W 8 | WSW 8 | W 6 | W 8 | W 8 | W 7 | WSW 7 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 34 | 14 | 7 | 6 | 7 | 41 | 104 | 123 | 149 | 222 | 173 | 154 | 127 | 52 | 68 | 45 | 55 | 29 | 28 | 18 | 10 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | on | on | cross-on | cross-on | on | cross-off | off | cross-off | cross-off | off | off | cross-off | cross-off | off | cross-off | glassy | cross-off | cross-off |
High Tide | 5:09PM6.79m | 5:42AM6.91m | 6:07PM7.40m | 6:34AM7.42m | 6:56PM7.93m | 7:21AM7.81m | 7:41PM8.30m | 8:03AM8.03m | 8:22PM8.43m | 8:43AM8.04m | 9:01PM8.31m | 9:21AM7.86m | 9:39PM7.98m | ||||||||
Low Tide | 11:00AM1.65m | 11:36PM1.27m | 12:00PM1.11m | 00:31AM0.71m | 12:50PM0.61m | 1:18AM0.26m | 1:34PM0.24m | 2:00AM-0.00m | 2:15PM0.07m | 2:40AM-0.04m | 2:53PM0.10m | 3:17AM0.13m | 3:30PM0.33m | 3:53AM0.49m | |||||||
 | |  |  | | | | | | | |  | | | | | | |  | | | |
 | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — |
 | — | 8:52 | — | — | 8:50 | — | — | 8:47 | — | — | 8:45 | — | — | 8:44 | — | — | 8:42 | — | — | 8:39 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 20 | 17 | 21 | 25 | 23 | 25 | 30 | 25 | 25 | 24 | 19 | 21 | 21 | 17 | 20 | 20 | 16 | 19 | 20 | 17 |
Feels °C | 16 | 16 | 15 | 19 | 23 | 22 | 21 | 28 | 23 | 22 | 22 | 19 | 18 | 17 | 16 | 17 | 15 | 13 | 17 | 17 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 6 | SW 6 | SW 7 | SW 6 | SW 6 | WSW 11 | WSW 10 | WSW 10 | WSW 9 | WSW 10 | WSW 10 | WSW 10 | W 9 | W 8 | WSW 8 | W 6 | W 8 | W 8 | W 7 | WSW 7 | WSW 7 |
| kJ | 34 | 14 | 7 | 6 | 1 | 41 | 104 | 123 | 149 | 222 | 173 | 154 | 127 | 52 | 68 | 45 | 55 | 29 | 28 | 18 | 10 |
Swell 2 Height (m) Direction Period (s) | W 8 | WNW 5 | W 8 | W 8 | W 9 | S 6 | SW 6 | E 3 | — | — | — | — | — | — | S 13 | W 8 | — | — | S 12 | — | S 18 |
| kJ | 1 | 9 | 5 | 5 | 7 | 3 | 1 | 3 | — | — | — | — | — | — | 3 | 30 | — | — | 3 | — | 6 |
Swell 3 Height (m) Direction Period (s) | — | W 8 | SW 13 | W 10 | W 13 | SW 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 1 | 7 | 2 | 3 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NNW 4 | — | ESE 3 | ESE 3 | — | E 3 | ESE 3 | — | — | W 3 | — | — | W 6 | — | NNW 4 | NW 3 | — | — | NW 3 | N 3 |
| kJ | — | 3 | — | 4 | 2 | — | 5 | 3 | — | — | 3 | — | — | 38 | — | 7 | 2 | — | — | 2 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 181 | 181 | 128 | 365 | 348 | 25 | 26 | 8 | 8 | 0 | 301 | 30 | 42 | 271 | 8 | 26 | 181 | 68 | 180 | 181 | 346 |
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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