Surf Forecasts:
Joss Bay surf forecast from 18 Aug 2026:
- Most powerful swell: Saturday 22 Aug, 10AM (local time) - 4.5ft (1.3m), 5s period, NNE swell with 86 kJ wave energy.
Best Forecast Surf Conditions for Joss Bay this week:
The most powerful waves expected at Joss Bay in the next 16 days are 1.3m 5s and forecast to arrive on Saturday (Aug 22) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Wednesday (Aug 19) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Sat 22nd Aug) | 4.5ft (1.3m) 5s |
Table - best surf conditions forecast for Joss Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what Joss Bay has in store for us over the next couple of weeks. I gotta be straight with you – this stretch is about as quiet as a church mouse. There’s just no swell to speak of for the whole sixteen days. We’re looking at a proper flat spell.
The water is sitting at a balmy 71°, which is a whole 7° warmer than what you’d normally expect for this time of year. That’s pretty weird, but don’t let it fool you into thinking there’s any wave energy around.
The first hint of something rideable doesn’t show up until Friday the 21st of August, but even then, it’s a struggle. Swell bumps up to a measly 4ft from the NNE, but with a short, choppy period of just 5 seconds and a fresh cross-onshore wind, it’s going to be lumpy, messy, and just not worth paddling out for. The combined wave energy is weak at best, hitting only 66. This pattern of onshore slop and tiny surf continues right through the weekend and into the following week.
We hit a real lull from Monday the 24th through to the end of the month, with swell barely registering above 0.3ft to 2ft. The wind does lighten up at times, and we even get a moment of glassy conditions on Wednesday the 26th afternoon, but with absolutely no swell to push it, it’s just a flat, pretty pond.
Looking into the first days of September, it’s the same story. We get a couple of clean, offshore mornings on the 2nd, but with swell at 0.7ft and a tiny 7-second period, you’d be better off finding another hobby for the day.
To be brutally honest, there isn't a single standout day or break in this entire forecast. For a spot that’s already inconsistent, this is a proper blank run. It’s not unusual for the area to go quiet like this, so don't throw your board in the bin just yet. Forecasts can always change for the better.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Tue night. Warm (max 25°C on Tue afternoon, min 15°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Fri afternoon. Very mild (max 17°C on Fri morning, min 16°C on Fri afternoon). Mainly fresh winds. | ||||||||||||||||||||
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) | N 8 | N 8 | NE 6 | NNE 6 | NE 6 | N 8 | N 7 | N 7 | N 8 | NNE 5 | NE 5 | NNE 5 | NNE 5 | NNE 5 | NE 4 | NE 4 | NE 7 | NNE 8 | NNE 7 | NNE 7 | NE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1 | 1 | 2 | 4 | 2 | 1 | 1 | 1 | 4 | 66 | 55 | 67 | 86 | 40 | 16 | 4 | 7 | 6 | 5 | 5 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | off | cross-off | off | off | off | cross | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | on | on | on | on |
High Tide | 4:03PM4.03m | 4:31AM3.64m | 4:46PM3.74m | 5:13AM3.39m | 5:34PM3.43m | 6:03AM3.16m | 6:32PM3.16m | 7:05AM2.98m | 7:42PM2.99m | 8:18AM2.94m | 8:57PM2.96m | 9:28AM3.05m | 10:02PM3.08m | ||||||||
Low Tide | 10:18AM0.70m | 10:44PM0.55m | 10:52AM0.89m | 11:19PM0.87m | 11:28AM1.10m | 11:58PM1.17m | 12:13PM1.31m | 00:50AM1.42m | 1:18PM1.49m | 2:12AM1.57m | 3:06PM1.53m | 3:55AM1.53m | 4:36PM1.35m | ||||||||
 | |  |  | |  | |  | |  |  | | |  |  | | | | | | | |
 | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — |
 | — | 8:10 | — | — | 8:08 | — | — | 8:07 | — | — | 8:05 | — | — | 8:02 | — | — | 8:00 | — | — | 7:59 | — |
mm | — | — | 1 | — | — | 2 | — | 2 | 2 | 5 | 6 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 25 | 22 | 20 | 20 | 18 | 21 | 21 | 19 | 17 | 17 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 |
Feels °C | 21 | 22 | 20 | 18 | 16 | 14 | 17 | 16 | 16 | 13 | 12 | 11 | 10 | 12 | 13 | 13 | 14 | 13 | 13 | 13 | 16 |
Swell 1 Height (m) Direction Period (s) | — | SSW 5 | S 5 | NNE 6 | NE 6 | N 7 | N 7 | S 5 | SSW 4 | — | — | W 5 | — | — | NE 8 | NE 4 | NE 7 | NNE 8 | NNE 7 | NNE 7 | NE 7 |
| kJ | — | 2 | 4 | 4 | 2 | 1 | 1 | 14 | 6 | — | — | 1 | — | — | 3 | 4 | 7 | 6 | 5 | 5 | 2 |
Swell 2 Height (m) Direction Period (s) | N 8 | N 8 | NE 6 | — | — | N 8 | — | W 3 | W 3 | — | — | — | — | — | — | NE 7 | — | — | — | — | — |
| kJ | 1 | 1 | 2 | — | — | 1 | — | 1 | 1 | — | — | — | — | — | — | 2 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 6 | — | — | — | N 7 | N 8 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 1 | — | — | — | 1 | 4 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 4 | W 3 | NW 3 | WSW 3 | SSW 4 | SW 4 | WSW 4 | SW 5 | NNE 3 | NNE 5 | NE 5 | NNE 5 | NNE 5 | NNE 5 | NE 4 | — | — | — | — | — | SW 3 |
| kJ | 9 | 5 | 1 | 2 | 2 | 20 | 8 | 42 | 3 | 66 | 55 | 67 | 86 | 40 | 16 | — | — | — | — | — | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 436 | 787 | 194 | 281 | 537 | 436 | 425 | 425 | 123 | 257 | 445 | 257 | 299 | 366 | 143 | 314 | 501 | 276 | 257 | 485 | 350 |
Best forecast wave conditions in South Coast of England | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Joss Bay Surf forecast
The above surf forecast table for Joss Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Joss Bay can be found by selecting the local surf guide option on the grey menu. Our Joss 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 (Joss 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 Joss 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.
Are you planning a holiday in South Coast of England? If you are looking for accommodation near Joss Bay, camping, hotels and holiday cottages in South Coast of England, consider staying in Broadstairs which is 3 km (2 miles) away. Other places in and around South Coast of England where you can find information about places to rent, and car hire include Manston which is 7 km (4 miles) away, Margate, Ramsgate and Thanet.
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