Surf Forecasts:
The Rock surf forecast from 1 Sep 2026:
- Most powerful swell: Tuesday 1 Sep, 11AM (local time) - 6ft (1.8m), 16s period, SSW swell with 1,697 kJ wave energy.
Best Forecast Surf Conditions for The Rock this week:
The most powerful waves expected at The Rock in the next 16 days are 1.8m 16s and forecast to arrive on Tuesday (Sep 01) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (+0530) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Tue 1st Sep) | 6ft (1.8m) 16s |
Table - best surf conditions forecast for The Rock over the next 16 days.
The Lowdown
Alright mate, Rusty here. Let's have a look at what's on offer for The Rock.
Alright, straight up, it's looking like a bit of a tough stretch ahead for The Rock. We've got a solid, long-period SSW groundswell rolling in, with the combined wave energy reading a strong 1875, but the wind is gonna be the spoiler. For the next few weeks, it's stuck in a cross to cross-onshore rut, mostly from the west, so the conditions are looking pretty ragged and choppy. The water temperature is sitting at a balmy 83°, which is about average for this time of year.
The best of what we get is going to be around Saturday the 12th of September. The morning shows a building 4ft SSW swell with a very long period of 17 seconds, and the combined energy jumps to 1743. The wind is still cross-onshore, tossing it into a choppy mess, so it's not clean. The afternoon gets a bit more interesting, with the swell picking up to 6ft from the SSW, energy surging to 2037, and the wind switching to a cross-shore. It’s still lumpy, but that's a whole lot of water moving with very long period. That kind of period pulls a lot of shape out of the wave, but on a reef setup, it could be holding some proper lines. It’s not for beginners, and it's a mess, but for the experienced crew, there might be some big, tricky sections to be had.
Before that, you're looking at a solid fortnight of poor to marginal surf. There are small windows with cross-shore winds on the 8th and 9th, but the swell is tiny, barely 2-3ft. There's a little bump again on the 11th of September with a 4ft SSW swell, a solid 16-second period, and cross-shore wind. That’s the best of the first week, and it's still messy. Saturday the 12th is your only real standout in the whole run, and even that's a gamble with the wind. The rest is a write-off.
So, to be honest, it’s a pretty bleak outlook. The wind just won't do us any favours. If you're desperate, keep an eye on Saturday the 12th, but don't hold your breath.
Rusty.
Short Range ForecastHeavy rain (total 27mm), heaviest during Wed morning. Warm (max 28°C on Tue morning, min 26°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Fri morning. Warm (max 29°C on Sat afternoon, min 26°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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) | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | S 13 | SSW 13 | S 13 | S 12 | S 11 | S 10 | S 10 | S 10 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 |
Wave Graph | |||||||||||||||||||||
1697 | 1611 | 1208 | 1001 | 811 | 1127 | 1075 | 812 | 679 | 564 | 464 | 357 | 192 | 249 | 196 | 220 | 244 | 118 | 162 | 159 | 178 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 4:17PM0.49m | 4:47AM0.55m | 4:40PM0.44m | 5:16AM0.51m | 5:01PM0.39m | 5:48AM0.45m | 5:14PM0.33m | 6:34AM0.38m | 4:01PM0.28m | 11:22AM0.35m | 1:17AM0.31m | 12:34PM0.41m | 1:23AM0.38m | ||||||||
Low Tide | 10:28AM0.06m | 10:22PM0.01m | 10:57AM0.10m | 10:45PM0.05m | 11:28AM0.15m | 11:06PM0.10m | 12:04PM0.21m | 11:22PM0.16m | 1:44PM0.27m | 10:40PM0.22m | 7:11PM0.20m | 6:19AM0.23m | 7:14PM0.14m | ||||||||
6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:00 | — | — | |
— | 6:15 | — | — | 6:15 | — | — | 6:14 | — | — | 6:14 | — | — | 6:13 | — | — | 6:13 | — | — | 6:12 | — | |
mm | 1 | 1 | 4 | 3 | 4 | 4 | 3 | 2 | 5 | 1 | — | 1 | — | — | 2 | 2 | — | 4 | — | — | 3 |
Temp °C | 28 | 28 | 27 | 28 | 28 | 26 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 29 | 27 | 28 | 28 | 27 | 28 | 29 | 27 |
Feels °C | 30 | 28 | 29 | 30 | 29 | 28 | 29 | 29 | 30 | 30 | 29 | 30 | 30 | 30 | 30 | 30 | 29 | 31 | 30 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | S 13 | SSW 13 | S 13 | S 12 | S 11 | S 10 | S 10 | S 10 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 |
1697 | 1611 | 1208 | 1001 | 811 | 1127 | 1075 | 812 | 679 | 564 | 464 | 357 | 192 | 249 | 196 | 220 | 244 | 118 | 162 | 159 | 149 | |
Swell 2 Height (m) Direction Period (s) | S 10 | SE 8 | SSE 10 | SSE 8 | S 9 | W 6 | SSE 8 | W 10 | W 5 | W 8 | W 8 | W 8 | S 12 | S 15 | S 14 | W 9 | S 15 | W 9 | S 14 | SSW 14 | SSW 18 |
47 | 34 | 55 | 7 | 78 | 54 | 56 | 30 | 25 | 23 | 21 | 49 | 99 | 112 | 93 | 41 | 116 | 37 | 101 | 62 | 178 | |
Swell 3 Height (m) Direction Period (s) | — | S 10 | SE 8 | WNW 10 | W 10 | SSE 8 | W 9 | — | WSW 9 | S 21 | S 18 | SSW 16 | S 15 | SSW 18 | SSW 16 | SSW 14 | — | SSW 16 | W 9 | SSW 19 | SSW 13 |
— | 30 | 10 | 33 | 48 | 7 | 39 | — | 27 | 9 | 27 | 53 | 115 | 62 | 87 | 61 | — | 81 | 37 | 125 | 59 | |
Wind waves Height (m) Direction Period (s) | W 7 | W 7 | W 7 | W 7 | W 6 | — | W 6 | W 6 | — | W 5 | W 5 | W 5 | W 5 | W 8 | W 5 | W 5 | W 9 | WSW 4 | WSW 4 | W 8 | W 10 |
131 | 154 | 126 | 126 | 97 | — | 50 | 38 | — | 25 | 20 | 19 | 7 | 47 | 7 | 7 | 81 | 10 | 10 | 90 | 90 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 740 | 875 | 193 | 669 | 764 | 193 | 193 | 763 | 15 | 740 | 763 | 22 | 669 | 15 | 193 | 763 | 764 | 15 | 669 | 764 | 192 |
Best forecast wave conditions in West Sri Lanka | |||||||||||||||||||||
Best forecast wave conditions in Sri Lanka | |||||||||||||||||||||
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Information about the The Rock Surf forecast
The above surf forecast table for The Rock provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Rock can be found by selecting the local surf guide option on the grey menu. Our The Rock 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 (The Rock) 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 The Rock 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.











