Surf Forecasts:
Kimmeridge Bay surf forecast from 19 Aug 2026:
- Best quality surf: Friday 21 Aug, 1AM (local time) - 2.5ft (0.8m), 6s period, WSW swell with offshore winds.
- Most powerful swell: Thursday 20 Aug, 4PM (local time) - 5ft (1.6m), 6s period, WSW swell with 166 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 1AM (local time) - 2.5ft (0.8m), 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 Friday (Aug 21) at 1AM. The primary swell is predicted to be 0.8m and 6s period with a secondary swell of 0.3m and 9s. The wind is predicted to be 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 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 0.9m 6s period and expected on Monday (Aug 24) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 21st Aug) | 2.5ft (0.8m) 6s |
| Best Surf | 1AM (Fri 21st Aug) | 2.5ft (0.8m) 6s |
| Most Powerful | 4PM (Thu 20th Aug) | 5ft (1.6m) 6s |
Table - best surf conditions forecast for Kimmeridge Bay over the next 16 days.
The Lowdown
Alright, let's get into it. This is Rusty, and I’m looking at our local stretch for the next couple weeks. To be brutally honest, it’s a pretty grim run of conditions here at Kimmeridge Bay. The reef is ready for a proper swell, but the weather gods just aren’t playing ball for a good long while. We’ve got a stretch of over a week where the surf is just flat or blown out, so don’t get your hopes up for anything decent until the very end of the run.
Kimmeridge Bay is our only option, a reliable reef. The water’s sitting at 69°F right now. That’s a massive 7°F above the long-term average for this time of year, very unusual. It feels like a warm bath.
From now through early September, it’s a write-off. The swell is tiny and the wind is mostly cross or cross-onshore, creating lumpy, choppy junk. We get a brief spike on the 26th of August afternoon with a 7ft swell from the SW, but it’s thumping in with a moderate cross-onshore wind, making it a real mess. The wave energy hits 412 (moderate), but with that wind, it’s a washing machine.
The only real light at the end of the tunnel shows up on Monday the 31st of August. After a morning of lumpy 4ft cross-shore swell (energy at 405), the afternoon cleans right up. We get a 4ft swell from the SW with an 11-second period – that’s a proper groundswell, and more importantly, we get a clean cross-offshore breeze from the WNW. Wave energy jumps to 605 (strong). This is the standout. It’ll be a bit bigger and more powerful than we’ve seen, and the offshore wind should make for some clean, lined-up faces on the reef. It’s a week and a half away, so it’s a long-range promise, but it looks like the best shot we’ve got.
The next day, the 1st of September, has a decent 6ft swell from the WSW, but it’s cross-shore and lumpy again. Not worth taking time off work for.
So, to be honest, there’s nothing to get excited about for over a week, and then one promising afternoon on the 31st of August. It’s a tough stretch.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Wed morning. Warm (max 20°C on Wed afternoon, min 12°C on Thu night). Winds decreasing (fresh winds from the WSW on Thu morning, calm by Fri morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Mon afternoon, min 14°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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 4 | WSW 5 | WSW 6 | WSW 5 | WSW 6 | WSW 6 | WSW 6 | SW 6 | S 13 | S 15 | WSW 10 | E 4 | S 14 | S 14 | S 14 | E 4 | ESE 6 | W 9 | W 8 | W 8 | WSW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 16 | 56 | 100 | 77 | 166 | 40 | 14 | 9 | 3 | 5 | 9 | 2 | 4 | 4 | 4 | 24 | 65 | 2 | 1 | 1 | 11 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | off | cross-off | cross-on | off | cross | cross-on | off | cross-off | on | cross-off | cross-off | cross | cross-off | off | off | cross-off |
High Tide | 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 | 6:52AM1.36m | 7:00PM1.61m | ||||||||
Low Tide | 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 | 1:57PM0.62m | 2:27AM0.40m | ||||||||
 |  |  | |  | | | |  | | | | | | | | |  |  | |  | |
 | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 8:21 | — | — | 8:19 | — | — | 8:16 | — | — | 8:15 | — | — | 8:13 | — | — | 8:10 | — | — | 8:08 | — |
mm | 2 | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | 12 |
Temp °C | 19 | 20 | 17 | 18 | 19 | 16 | 17 | 18 | 17 | 18 | 18 | 18 | 19 | 19 | 18 | 19 | 21 | 18 | 18 | 18 | 16 |
Feels °C | 16 | 15 | 13 | 12 | 14 | 13 | 15 | 14 | 14 | 14 | 15 | 15 | 17 | 16 | 16 | 12 | 16 | 13 | 15 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | W 8 | — | S 15 | — | — | WSW 6 | WSW 6 | SW 9 | WSW 6 | WSW 5 | WSW 10 | ESE 3 | ESE 4 | ESE 3 | — | W 9 | W 9 | E 6 | E 5 | E 4 | — |
| kJ | 1 | — | 5 | — | — | 40 | 14 | 3 | 3 | 3 | 9 | 1 | 3 | 1 | — | 2 | 1 | 40 | 12 | 1 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | WSW 9 | WSW 9 | — | SW 8 | W 10 | — | W 10 | W 9 | W 9 | W 9 | — | — | W 9 | W 8 | W 8 | W 11 |
| kJ | — | — | — | — | — | 16 | 8 | — | 3 | 2 | — | 2 | 2 | 2 | 2 | — | — | 2 | 1 | 1 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | S 13 | S 15 | — | W 6 | S 14 | S 14 | S 14 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 3 | 4 | — | 1 | 4 | 4 | 4 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 4 | WSW 5 | WSW 6 | WSW 5 | WSW 6 | NNW 3 | NNE 3 | SW 6 | — | E 3 | E 4 | E 4 | NE 2 | — | — | E 4 | ESE 6 | — | N 3 | SW 2 | WSW 4 |
| kJ | 16 | 56 | 100 | 77 | 166 | 3 | 1 | 9 | — | 5 | 8 | 2 | 1 | — | — | 24 | 65 | — | 1 | 1 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 312 | 238 | 510 | 218 | 220 | 0 | 108 | 108 | 151 | 152 | 238 | 160 | 175 | 516 | 238 | 493 | 593 | 339 | 260 | 238 | 187 |
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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