Surf Forecasts:
Joss Bay surf forecast from 25 Aug 2026:
- Most powerful swell: Tuesday 25 Aug, 10AM (local time) - 4.5ft (1.4m), 6s period, ENE swell with 110 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 1.4m 6s and forecast to arrive on Tuesday (Aug 25) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Saturday (Aug 29) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Tue 25th Aug) | 4.5ft (1.4m) 6s |
Table - best surf conditions forecast for Joss Bay over the next 16 days.
The Lowdown
Alright, I'm looking at the charts for the next couple of weeks and... I gotta be straight with you. It's grim. A proper flat spell setting in after a tiny, messy pulse. Let's break it down.
We start with a bit of a pulse on Tuesday, August 25th, with Joss Bay seeing some 5ft swell from the ENE, but that wind is a screaming 30 km/h onshore from the east, making a mess of everything. The wave energy is weak (110), and the period is a short, crumbly 6 seconds. It's not worth paddling out for. That afternoon drops to 4ft and the wind stays on, making it even worse.
The rest of the week and into the weekend is just a slow death. Swell drops to knee-high and below, and while we do get some clean windows with offshore winds - like Thursday afternoon with a clean cross-offshore breeze, or Friday morning with a gentle offshore - the swell is barely a ripple (1ft). The combined energy is a pathetic 5 or 6. You're not catching anything.
This flatness stretches out for days. From about Thursday the 27th all the way through to Tuesday the 1st of September, the swell energy is mostly in single digits. There's a tease on Wednesday morning, September 2nd, a little 0.3ft pulse from the north with a long 10-second period and a fresh offshore wind, but it's just not enough to break properly. It's clean, but it's a lake.
Then, a little bump appears on Thursday, September 3rd. We get 2ft from the NE with a 9-second period, and a moderate cross-offshore breeze. The combined energy jumps to 41, which is still weak, but it's the most we've seen in a week. The wind is clean. For the absolute die-hards on a longboard, this could be a fun little session. It's not a standout by any means, just the best of a bad lot.
After that, it's back to the flatness. Friday the 4th has a 0.7ft bump with a fresh offshore, but then we get a weird little blip on Tuesday, September 8th, with some 5ft swell from the NNW but with onshore wind from the ENE, making it a messy 100 energy washout.
Honestly, mate, if you're desperate, the only window worth even looking at is Thursday, September 3rd. The swell is small and clean. For the rest of it, you're better off finding something else to do. The water temperature is about average for the time of year here at Joss Bay, so no surprises there.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Wed morning. Warm (max 22°C on Tue night, min 17°C on Tue night). Mainly strong winds. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Sat afternoon. Warm (max 22°C on Fri morning, min 16°C on Fri night). Winds increasing (light winds from the W on Thu night, fresh winds from the SW by Sun afternoon). | ||||||||||||||||||||
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) | ENE 6 | ENE 6 | ESE 4 | SE 4 | NE 6 | ENE 4 | ENE 5 | ENE 5 | NE 6 | NE 6 | NE 6 | NE 6 | NE 7 | NE 6 | N 7 | N 6 | N 6 | N 6 | N 6 | WSW 4 | W 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 110 | 77 | 29 | 22 | 12 | 13 | 42 | 19 | 13 | 6 | 5 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross | cross | cross-on | on | cross | cross-off | cross-off | off | cross-off | off | off | off | off | cross-off | off | off | off | off | off |
High Tide | 10:24AM3.28m | 10:55PM3.27m | 11:10AM3.55m | 11:39PM3.50m | 11:51AM3.83m | 00:18AM3.73m | 12:28PM4.08m | 00:55AM3.94m | 1:04PM4.27m | 1:31AM4.10m | 1:40PM4.40m | 2:07AM4.19m | 2:18PM4.44m | 2:44AM4.20m | |||||||
Low Tide | 5:01AM1.35m | 5:32PM1.07m | 5:49AM1.12m | 6:15PM0.77m | 6:28AM0.90m | 6:53PM0.49m | 7:04AM0.71m | 7:27PM0.27m | 7:38AM0.57m | 8:01PM0.13m | 8:11AM0.48m | 8:33PM0.07m | 8:44AM0.45m | 9:06PM0.10m | |||||||
 | |  |  |  |  |  |  | | | | |  | | | | |  | | | | |
 | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — |
 | — | 7:57 | — | — | 7:53 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | — | 7:45 | — | — | 7:44 | — |
mm | — | — | 1 | 2 | — | — | 1 | — | — | — | — | — | 1 | 6 | — | 2 | — | — | — | — | — |
Temp °C | 19 | 21 | 22 | 20 | 20 | 22 | 21 | 22 | 20 | 22 | 22 | 19 | 19 | 19 | 18 | 19 | 21 | 18 | 18 | 20 | 18 |
Feels °C | 14 | 17 | 18 | 20 | 20 | 20 | 20 | 19 | 16 | 19 | 17 | 15 | 15 | 17 | 14 | 14 | 14 | 11 | 9 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | — | — | NE 5 | E 5 | NE 6 | — | ENE 5 | ENE 5 | NE 6 | NE 6 | NE 6 | NE 6 | NE 7 | NE 6 | S 5 | N 6 | N 6 | N 6 | N 6 | — | SSW 5 |
| kJ | — | — | 29 | 19 | 11 | — | 42 | 19 | 13 | 6 | 5 | 1 | 2 | 2 | 21 | 1 | 1 | 1 | 1 | — | 8 |
Swell 2 Height (m) Direction Period (s) | — | — | — | NE 6 | SSW 4 | — | — | — | — | — | — | — | — | — | N 7 | — | — | — | — | — | — |
| kJ | — | — | — | 17 | 4 | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | ENE 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 6 | ESE 4 | SE 4 | SE 4 | ENE 4 | S 3 | S 3 | SSW 4 | W 3 | SW 4 | SW 5 | SW 4 | SSW 6 | W 5 | SW 4 | SSW 5 | SW 5 | WSW 5 | WSW 4 | W 4 |
| kJ | 110 | 77 | 25 | 22 | 12 | 13 | 1 | 8 | 5 | 1 | 3 | 60 | 35 | 179 | 52 | 21 | 48 | 78 | 66 | 50 | 27 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 281 | 422 | 396 | 422 | 536 | 370 | 553 | 158 | 232 | 328 | 378 | 194 | 390 | 200 | 405 | 736 | 713 | 554 | 554 | 470 | 429 |
Best forecast wave conditions in South Coast of England | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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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