Surf Forecasts:
Kimmeridge Bay surf forecast from 18 Aug 2026:
- Best quality surf: Thursday 20 Aug, 10PM (local time) - 4.5ft (1.3m), 6s period, WSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 10AM (local time) - 5ft (1.6m), 6s period, SW swell with 213 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 10PM (local time) - 4.5ft (1.3m), 6s period with WSW swell.
Best Forecast Surf Conditions for Kimmeridge Bay this week:
The surf forecast for Kimmeridge Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 10PM. The primary swell is predicted to be 1.3m and 6s period with a secondary swell of 1.1m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kimmeridge Bay in the next 16 days are 1.6m 6s and forecast to arrive on Tuesday (Aug 25) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Saturday (Aug 22) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Thu 20th Aug) | 4.5ft (1.3m) 6s |
| Best Surf | 10PM (Thu 20th Aug) | 4.5ft (1.3m) 6s |
| Most Powerful | 10AM (Tue 25th Aug) | 5ft (1.6m) 6s |
Table - best surf conditions forecast for Kimmeridge Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s cut through the noise and look at what’s on offer for Kimmeridge Bay over the next couple of weeks.
Right off the bat, I have to be straight with you—this is a grim stretch. For the first week and a half, there’s barely a ripple worth paddling for. The swell is tiny, the period is short, and the wind is all over the place. We’re talking weak, sloppy 0.3ft to 1ft waves with combined energies barely reaching double digits (12 to 16). It’s clean on Friday 21st and Saturday 22nd with a light cross-off shore, but there’s just no power behind it. You’d be floating out there. The water temperature is a whopping 69°F, which is 7°F warmer than normal for this time of year—very unusual, and honestly, it’s the only thing that’s not disappointing.
The only faint glimmer of hope comes on Thursday 27th of August. The morning session sees a 5ft swell from the SW, with a period of 8 seconds and a clean cross-off breeze from the ENE. The combined energy hits 241, which is moderate. It’s not epic, but it’s the first time in this entire outlook that the conditions are described as “surfable.” The wind is light and it’s clean. The afternoon sees a bit of a risk of thunderstorms, but the swell hangs in there. This is the one day that might be worth a look if you’re desperate for a paddle.
After that, it fades back into tiny, weak, or onshore junk. By the 29th, you’re back to 2ft with a light offshore, but it’s just a whisper. The rest of the run into September is a mess of cross-on and onshore winds with no real energy to get excited about.
So, the honest truth? You’ve got one potential window—Thursday 27th August. Mark it. Outside of that, save your wax and wait for the next proper swell. The forecast can always change, but right now, this is a lean patch.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Tue night. Warm (max 22°C on Tue afternoon, min 12°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Sun night. Warm (max 20°C on Sat afternoon, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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 5 | WSW 5 | WSW 6 | WSW 4 | WSW 4 | WSW 5 | WSW 5 | WSW 5 | WSW 6 | SW 6 | SW 6 | WSW 6 | W 10 | W 10 | W 10 | S 14 | S 14 | W 9 | S 14 | WSW 3 | SW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 64 | 67 | 49 | 16 | 31 | 51 | 59 | 83 | 40 | 8 | 9 | 3 | 2 | 2 | 2 | 4 | 4 | 2 | 4 | 3 | 25 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | cross | cross | cross | off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | cross | on | cross-off | cross | cross-on | cross |
High Tide | 11:28AM1.69m | 11:38PM1.67m | 12:02PM1.54m | 00:12AM1.45m | 12:37PM1.37m | 00:47AM1.25m | 1:22PM1.21m | 1:44AM1.06m | 4:19PM1.13m | 5:26AM1.08m | 5:48PM1.27m | 6:18AM1.21m | 6:28PM1.44m | ||||||||
Low Tide | 6:27PM0.59m | 6:33AM0.54m | 6:20PM0.70m | 6:04AM0.66m | 6:40PM0.79m | 6:38AM0.77m | 8:17PM0.87m | 8:13AM0.86m | 00:36AM0.87m | 12:30PM0.87m | 1:32AM0.71m | 1:26PM0.75m | 2:01AM0.55m | ||||||||
 |  |  |  |  |  | | |  | | |  | | | | | | | | | | |
 | 6:00 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — |
 | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — | — | 8:16 | — | — | 8:15 | — | — | 8:13 | — | — | 8:10 | — |
mm | — | — | 2 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 21 | 22 | 18 | 19 | 20 | 17 | 19 | 20 | 17 | 16 | 19 | 16 | 19 | 20 | 18 | 18 | 18 | 17 | 18 | 19 | 18 |
Feels °C | 19 | 18 | 15 | 17 | 17 | 13 | 14 | 16 | 14 | 12 | 14 | 12 | 15 | 18 | 13 | 14 | 15 | 16 | 14 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | — | — | — | W 8 | W 10 | S 15 | WSW 9 | — | WSW 6 | SW 6 | SW 6 | WSW 6 | SW 6 | E 6 | NNW 3 | ESE 5 | E 4 | W 3 | — | W 9 | W 9 |
| kJ | — | — | — | 1 | 7 | 5 | 17 | — | 40 | 8 | 9 | 3 | 1 | 23 | 2 | 7 | 1 | 1 | — | 1 | 2 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | WSW 9 | WSW 9 | SW 9 | W 8 | W 10 | W 10 | E 4 | W 9 | W 9 | W 9 | W 8 | — | — |
| kJ | — | — | — | — | — | — | — | — | 8 | 8 | 3 | 1 | 2 | 2 | 1 | 2 | 2 | 2 | 1 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | W 6 | W 10 | S 14 | S 14 | — | S 14 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 4 | 4 | — | 4 | — | — |
Wind waves Height (m) Direction Period (s) | WSW 5 | WSW 5 | WSW 6 | WSW 4 | WSW 4 | WSW 5 | WSW 5 | WSW 5 | — | NE 2 | ENE 3 | ENE 4 | ENE 5 | — | — | — | — | — | — | WSW 3 | SW 4 |
| kJ | 64 | 67 | 49 | 16 | 31 | 51 | 59 | 83 | — | 1 | 1 | 11 | 72 | — | — | — | — | — | — | 3 | 25 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 297 | 572 | 72 | 112 | 312 | 238 | 216 | 216 | 24 | 157 | 240 | 173 | 160 | 103 | 175 | 236 | 238 | 260 | 260 | 225 | 130 |
Best forecast wave conditions in South Coast of England | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Kimmeridge Bay Surf forecast
The above surf forecast table for Kimmeridge Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kimmeridge Bay can be found by selecting the local surf guide option on the grey menu. Our Kimmeridge Bay 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 (Kimmeridge Bay) 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 Kimmeridge Bay 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.
Kimmeridge Bay is 18 km (11 miles) from the city of Poole. If you plan a holiday in South Coast of England, look for hotels and other accommodation in Poole. Poole has rooms for a wide range of budgets as well as car hire and transport links.
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