Surf Forecasts:
Kimmeridge Bay surf forecast from 25 Aug 2026:
- Most powerful swell: Monday 31 Aug, 4AM (local time) - 8ft (2.4m), 7s period, WSW swell with 574 kJ wave energy.
Best Forecast Surf Conditions for Kimmeridge Bay this week:
The most powerful waves expected at Kimmeridge Bay in the next 16 days are 2.4m 7s and forecast to arrive on Monday (Aug 31) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Wednesday (Aug 26) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Mon 31st Aug) | 8ft (2.4m) 7s |
Table - best surf conditions forecast for Kimmeridge Bay over the next 16 days.
The Lowdown
Alright, Rusty here. Let me give you the rundown on Kimmeridge Bay in feet and Fahrenheit. It’s a pretty bleak picture, I won’t lie.
We’re looking at a dry spell that feels like it goes on forever. The first day with anything in the water is Tuesday, August 25th, and it’s rubbish. A weak 4-foot east swell at a super short 6 seconds, getting hammered by a 30 km/h cross-shore wind. The water is a toasty 69°F, which is a whopping 7° warmer than average – that’s very unusual for the time of year. But you won’t be enjoying it; you’ll be fighting a lumpy cross-chop with a combined energy of just 111 (weak). Total waste of time. The rest of that week and into the weekend is more of the same – small, weak, and wind-battered. Nothing worth paddling out for.
The first little glimmer comes on Monday, August 31st, in the morning. We’ve got a 6-foot groundswell from the WSW, period 7 seconds, with a moderate energy of 366. The wind is a cross-offshore from the WNW at 40 km/h, cleaning it up nicely. The report says ‘clean’, which is a rare positive, but that wind is still howling. It’s the only window that’s even remotely surfable. After that, it’s right back into the messy, lumpy, cross-onshore junk.
Now, the one true standout, but you’ve gotta be cautious. Circle Saturday, September 5th. The afternoon session packs a serious punch: a big 10-foot swell from the SW at 8 seconds. The combined energy is a massive 967 (strong). This is heavy water. For a reef break like Kimmeridge Bay, that’s expert-only territory – beginners and most intermediates, stay dry. The catch is the wind: a fresh 30 km/h cross-shore from the WSW, making it lumpy. It’s going to be a grunt, but for the experienced crew, there are proper, heavy waves to be had.
The following Monday morning, September 7th, offers a little sigh of relief. We get a 5-foot swell from the WSW and a sweet offshore NNE breeze at 40 km/h. Clean conditions again. The swell period is 6 seconds, so it’s still a windswell, but with that offshore wind it’s definitely worth a paddle. The water will be starting to cool by then.
Honestly, for this stretch of coast, it’s a tough hand. There’s a solid 7-day gap of awful conditions at the start. The only time the ocean really fires up is on the 5th of September, but you’ll need to be in top form to handle it. Don’t go dreaming of perfect days; this is about picking the least-ugly window for a session.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Warm (max 20°C on Tue morning, min 17°C on Tue night). Winds decreasing (fresh winds from the E on Tue morning, light winds from the SE by Tue night). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Fri night. Warm (max 20°C on Sat morning, min 15°C on Sun night). Winds increasing (light winds from the SSW on Fri afternoon, strong winds from the WNW by Sun night). | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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) | E 6 | E 5 | SW 8 | SSW 8 | SW 7 | E 4 | SSW 5 | SW 5 | SW 7 | SW 7 | WSW 8 | WSW 7 | SW 7 | SW 7 | SW 6 | WSW 8 | SW 5 | WSW 7 | WSW 7 | WSW 6 | SW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 104 | 65 | 11 | 6 | 2 | 14 | 28 | 47 | 77 | 64 | 42 | 114 | 541 | 342 | 278 | 264 | 63 | 394 | 366 | 168 | 159 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | on | cross-on | cross-off | cross-on | cross-on | cross-on | cross-on | on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-off | cross | cross |
High Tide | 7:00PM1.61m | 7:22AM1.50m | 7:29PM1.78m | 7:51AM1.64m | 7:58PM1.93m | 8:20AM1.77m | 8:27PM2.05m | 8:50AM1.88m | 8:58PM2.12m | 9:21AM1.96m | 9:31PM2.15m | 9:54AM1.99m | 10:05PM2.12m | ||||||||
Low Tide | 1:57PM0.62m | 2:27AM0.40m | 2:24PM0.52m | 2:54AM0.28m | 2:52PM0.43m | 3:21AM0.18m | 3:21PM0.37m | 3:49AM0.12m | 3:50PM0.34m | 4:17AM0.11m | 4:17PM0.35m | 4:44AM0.14m | 4:40PM0.38m | ||||||||
 | |  |  | |  | | | |  | | |  | | | |  | | | | | |
 | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — |
 | — | 8:08 | — | — | 8:07 | — | — | 8:05 | — | — | 8:02 | — | — | 8:00 | — | — | 7:58 | — | — | 7:55 | — |
mm | — | — | — | — | — | 3 | — | — | — | — | — | 1 | 1 | — | — | — | 1 | — | — | 1 | — |
Temp °C | 20 | 20 | 19 | 20 | 20 | 19 | 19 | 19 | 17 | 19 | 19 | 17 | 20 | 20 | 18 | 18 | 19 | 17 | 18 | 19 | 16 |
Feels °C | 15 | 16 | 17 | 19 | 20 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 13 | 13 | 15 | 11 | 9 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 9 | SSW 8 | E 5 | E 5 | E 4 | SW 4 | ESE 4 | ESE 4 | SW 7 | WSW 7 | WSW 8 | — | — | — | — | WSW 8 | — | — | — | — | — |
| kJ | 3 | 7 | 24 | 7 | 1 | 1 | 7 | 2 | 77 | 48 | 42 | — | — | — | — | 264 | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | W 11 | — | SW 8 | SSW 8 | SW 7 | SW 7 | W 9 | W 9 | — | — | SW 4 | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | — | 11 | 6 | 2 | 2 | 2 | 2 | — | — | 8 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | W 9 | W 8 | — | W 9 | SW 4 | W 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | — | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 6 | E 5 | — | — | S 3 | E 4 | SSW 5 | SW 5 | — | SW 7 | — | WSW 7 | SW 7 | SW 7 | SW 6 | SW 7 | SW 5 | WSW 7 | WSW 7 | WSW 6 | SW 6 |
| kJ | 104 | 65 | — | — | 1 | 14 | 28 | 47 | — | 64 | — | 114 | 541 | 342 | 278 | 156 | 63 | 394 | 366 | 168 | 159 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 206 | 173 | 160 | 175 | 175 | 445 | 321 | 130 | 108 | 192 | 126 | 238 | 321 | 315 | 12 | 99 | 99 | 798 | 600 | 466 | 177 |
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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