Surf Forecasts:
Kimmeridge Bay surf forecast from 18 Aug 2026:
- Best quality surf: Thursday 20 Aug, 10PM (local time) - 3.5ft (1.1m), 6s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 4PM (local time) - 5ft (1.5m), 5s period, WSW swell with 128 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 10PM (local time) - 3.5ft (1.1m), 6s period with SW 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 1.1m and 6s period with a secondary swell of 0.1m and 14s. 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 1.5m 5s and forecast to arrive on Thursday (Aug 20) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 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) | 3.5ft (1.1m) 6s |
| Best Surf | 10PM (Thu 20th Aug) | 3.5ft (1.1m) 6s |
| Most Powerful | 4PM (Thu 20th Aug) | 5ft (1.5m) 5s |
Table - best surf conditions forecast for Kimmeridge Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. We're looking at Kimmeridge Bay for the next two weeks and, honest to god, it's a tough stretch. We’ve got a run of junk surf that starts now and just keeps on giving.
The forecast kicks off with nothing rideable. From Tuesday the 18th right through to the end of the first week, we're staring down a wall of poor surf conditions. It's a brutal long gap with no recommendations at all. The swell is tiny, the period is short, and the wind is mostly cross or cross-on shore, leaving a lumpy chop on the surface. When the swell tries to pick up, the wind just ruins it. On the 20th, the swell hits 5ft with 128 (moderate combined energy), but the cross-shore wind makes it a mess. There is a small window on the 21st and 22nd where the wind goes clean and glassy, but the swell is practically non-existent at 0.7ft to 0.3ft. It’s soul-crushing.
As we move into the second week, we finally see some size, but the conditions aren't getting much better. By Monday the 31st of August, we’ve got a 6ft swell pushing in from the SW with 185 combined energy. The wind is light cross-onshore, so there’s a bit of texture, but it's a step up from the flat spell. The real kicker comes on Tuesday the 1st of September. A strong 6ft SW groundswell rolls in with a 9-second period and a massive 950 combined energy. That's a lot of power, but the wind is a fresh cross-onshore breeze, keeping it choppy and lumpy. This is expert territory due to the size and less-than-ideal wind, and honestly, with that onshore wind, it might be more interesting for the kite surfers than us paddle folk.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue night. Warm (max 23°C on Tue morning, min 16°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Fri morning. 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 5 | WSW 4 | WSW 5 | WSW 5 | WSW 5 | W 6 | SW 6 | WSW 9 | S 13 | S 15 | W 10 | W 10 | S 14 | S 14 | S 14 | W 9 | W 8 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 48 | 77 | 47 | 24 | 42 | 56 | 64 | 128 | 62 | 8 | 8 | 3 | 4 | 2 | 2 | 4 | 4 | 4 | 2 | 1 | 1 |
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 | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | off | cross-on | off | glassy | cross-on | cross-on |
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 | 6:24AM0.38m | 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 | — | — | 1 | — | — | 1 | — | — | — | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 18 | 19 | 20 | 17 | 19 | 20 | 16 | 17 | 19 | 17 | 19 | 20 | 19 | 18 | 19 | 18 | 17 | 18 | 16 |
Feels °C | 20 | 18 | 15 | 16 | 16 | 13 | 14 | 15 | 13 | 14 | 17 | 14 | 14 | 18 | 15 | 16 | 15 | 15 | 14 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | W 10 | S 15 | — | — | WSW 5 | SW 6 | WSW 6 | WSW 6 | SW 5 | ENE 5 | W 10 | E 4 | — | WSW 3 | — | W 8 | W 8 |
| kJ | — | — | — | — | 7 | 5 | — | — | 46 | 8 | 3 | 3 | 1 | 4 | 2 | 1 | — | 2 | — | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | WSW 9 | SW 9 | WSW 9 | W 8 | W 9 | W 10 | — | W 9 | W 9 | W 9 | W 9 | — | — |
| kJ | — | — | — | — | — | — | — | — | 8 | 3 | 8 | 1 | 2 | 2 | — | 2 | 2 | 2 | 2 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | S 13 | S 15 | W 10 | — | S 14 | S 14 | S 14 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 3 | 4 | 2 | — | 4 | 4 | 4 | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 5 | WSW 5 | WSW 6 | WSW 5 | WSW 4 | WSW 5 | WSW 5 | WSW 5 | W 6 | NNE 3 | NE 4 | NE 3 | ENE 5 | SW 5 | ENE 3 | — | — | WNW 3 | — | — | WSW 3 |
| kJ | 48 | 77 | 47 | 24 | 42 | 56 | 64 | 128 | 62 | 10 | 3 | 2 | 27 | 1 | 4 | — | — | 1 | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 297 | 238 | 72 | 312 | 238 | 297 | 170 | 220 | 0 | 143 | 108 | 174 | 160 | 238 | 323 | 349 | 260 | 347 | 347 | 445 | 238 |
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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