
Surf Forecasts:
Dondra surf forecast from 11 Aug 2026:
- Best quality surf: Monday 17 Aug, 11PM (local time) - 5ft (1.5m), 20s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 18 Aug, 5AM (local time) - 6.5ft (2.0m), 19s period, SSW swell with 2,781 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 11PM (local time) - 5ft (1.5m), 20s period with SSW swell.
Best Forecast Surf Conditions for Dondra this week:
The surf forecast for Dondra over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 11PM. The primary swell is predicted to be 1.5m and 20s period with a secondary swell of 0.9m and 10s. Another secondary swell of 1.0m and 10s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Dondra in the next 16 days are 2.0m 19s and forecast to arrive on Tuesday (Aug 18) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Friday (Aug 14) at 5PM.
| Wave Type | Time (+0530) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 17th Aug) | 5ft (1.5m) 20s |
| Best Surf | 11PM (Mon 17th Aug) | 5ft (1.5m) 20s |
| Most Powerful | 5AM (Tue 18th Aug) | 6.5ft (2.0m) 19s |
Table - best surf conditions forecast for Dondra over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on offer for Dondra over the next couple of weeks.
Straight up, we’re looking at a pretty quiet first week. The waves are there, but they’re small and a bit underwhelming. The real standout is further out, so patience is the name of the game.
We start off on Tuesday the 11th with a bit of a mixed bag. There’s a long-period groundswell pushing in from the south, with 4ft surf and a 19-second period. That long period means the waves will have plenty of energy and shape, but with a moderate cross-shore wind and a risk of t-storms, it’s not going to be picture-perfect. The combined energy is solid, hitting 2146, but the conditions are just a bit messy. The wind swings offshore in the afternoon, cleaning things up, but the swell drops to 4ft. Still, the water temp is about average for this time of year, so you won’t need a full winter suit.
The rest of the week through to Monday the 17th is more of the same. We’re looking at knee to waist-high waves, mostly in the 3ft to 4ft range, with a mix of south and south-southeast swells. The winds are mostly cross-offshore, which is a positive, and the conditions are generally clean. But the energy is moderate, with readings mostly between 600 and 1100. It’s not terrible, just nothing to get excited about. The spot is a reef break, so it can be a bit inconsistent. Crowds are a possibility here, but with this kind of small surf, it’s likely to be pretty quiet.
Now, hold onto your board, because things start to get interesting around Tuesday the 18th. A solid pulse of swell arrives from the south-southwest, pushing wave heights up to 7ft to 8ft. The period is still a healthy 18-19 seconds, so this is proper groundswell. The energy jumps way up to 3828, which is solid. The wind stays cross-offshore from the west, keeping the surface clean. This is the best on offer in the whole forecast. The waves will be pushing into the 8ft range, so this is for experienced surfers only. Beginners should sit this one out. The long period will make the sets at Dondra (a reef break) stand up nicely, with long, clean lines.
The big swell hangs around through Wednesday and Thursday the 19th/20th, with waves still in the 7ft to 7ft range, though the energy drops a bit. The wind stays favorable, making for some excellent sessions. By Friday the 21st, the swell eases slightly to 7ft, but the energy is still strong. A bit of a cross-chop creeps in on the morning of the 20th and 21st, but the afternoons clean up.
Into the second week, from the 22nd onward, we’re looking at a slow decline. The swell drops back to 6ft on the 22nd, then 5ft on the 23rd. There’s another pulse of 6ft on Monday the 24th, but the overall trend is downward. The wind stays consistently cross-offshore, which is good, but the energy is lower. The best of the second week is probably Tuesday the 25th, with a 5ft to 6ft swell from the south-southwest and a nice long period of 18-19 seconds, giving strong energy of 3060. It’s a promising call, but it’s a week and a half away, so keep an eye on it.
If you’re looking for the best window, clear your schedule for Tuesday the 18th through Thursday the 20th. That’s the highlight. The rest is pretty average.
Stay stoked,
Rusty
Short Range ForecastModerate rain (total 19mm), heaviest on Tue night. Warm (max 28°C on Tue morning, min 26°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Thu night. Warm (max 29°C on Sat morning, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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 20 | S 19 | S 18 | S 18 | S 16 | WSW 9 | S 10 | SSE 11 | SSE 11 | SSE 10 | SSE 11 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSE 11 | SSE 11 | SSE 11 | SSE 11 |
Wave Graph | |||||||||||||||||||
567 | 1255 | 921 | 871 | 412 | 308 | 253 | 350 | 286 | 265 | 308 | 303 | 297 | 246 | 194 | 308 | 308 | 265 | 256 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross | cross | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 1:56AM0.40m | 1:52PM0.51m | 2:27AM0.46m | 2:24PM0.53m | 2:58AM0.50m | 2:53PM0.54m | 3:27AM0.54m | 3:20PM0.54m | 3:54AM0.55m | 3:47PM0.53m | 4:21AM0.55m | 4:11PM0.51m | 4:46AM0.53m | ||||||
Low Tide | 7:38AM0.13m | 8:20PM0.05m | 8:17AM0.09m | 8:46PM0.01m | 8:52AM0.07m | 9:12PM-0.02m | 9:23AM0.06m | 9:37PM-0.03m | 9:53AM0.06m | 10:01PM-0.02m | 10:20AM0.08m | 10:24PM-0.00m | |||||||
— | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | |
— | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | — | 6:21 | — | — | 6:21 | — | |
mm | 3 | 2 | 2 | 5 | 2 | — | 3 | 1 | 1 | 1 | 2 | — | — | — | — | — | — | — | — |
Temp °C | 26 | 28 | 28 | 26 | 27 | 28 | 26 | 27 | 28 | 26 | 28 | 28 | 26 | 29 | 29 | 26 | 29 | 29 | 26 |
Feels °C | 29 | 29 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 29 | 29 | 27 | 29 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 19 | S 18 | S 18 | S 10 | SSE 10 | S 10 | SSE 11 | SSE 11 | SSE 10 | SSE 11 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSE 11 | SSE 11 | SSE 11 | SSE 11 |
456 | 1255 | 921 | 871 | 250 | 241 | 245 | 350 | 286 | 265 | 308 | 303 | 297 | 246 | 194 | 308 | 308 | 265 | 256 | |
Swell 2 Height (m) Direction Period (s) | S 14 | S 13 | SSE 11 | SSE 11 | S 12 | SSW 16 | S 11 | SSW 15 | SSW 15 | SSW 6 | SW 16 | SW 16 | SSW 15 | SSW 15 | S 12 | W 10 | SSW 14 | SW 14 | SW 13 |
447 | 408 | 303 | 303 | 220 | 226 | 253 | 142 | 144 | 36 | 261 | 261 | 199 | 146 | 108 | 70 | 138 | 100 | 63 | |
Swell 3 Height (m) Direction Period (s) | SSW 20 | SSE 11 | SSW 12 | S 11 | S 16 | S 16 | SSW 15 | SSW 5 | S 13 | S 13 | S 19 | S 18 | S 17 | S 13 | SW 15 | SSW 14 | SW 26 | SW 24 | SW 24 |
567 | 308 | 252 | 160 | 412 | 239 | 191 | 20 | 56 | 55 | 188 | 174 | 153 | 52 | 176 | 136 | 26 | 22 | 87 | |
Wind waves Height (m) Direction Period (s) | W 9 | W 9 | W 10 | W 10 | W 10 | WSW 9 | W 9 | W 9 | W 9 | W 8 | WSW 6 | W 6 | W 7 | W 7 | W 7 | W 6 | W 9 | W 9 | W 10 |
171 | 175 | 266 | 230 | 225 | 308 | 165 | 153 | 225 | 140 | 97 | 121 | 211 | 223 | 168 | 80 | 207 | 246 | 190 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 395 | 676 | 390 | 390 | 676 | 895 | 485 | 174 | 1205 | 175 | 174 | 174 | 125 | 167 | 41 | 125 | 167 | 174 | 167 |
Best forecast wave conditions in West Sri Lanka | |||||||||||||||||||
Best forecast wave conditions in Sri Lanka | |||||||||||||||||||
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Information about the Dondra Surf forecast
The above surf forecast table for Dondra provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Dondra can be found by selecting the local surf guide option on the grey menu. Our Dondra 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 (Dondra) 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 Dondra 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.
Dondra is 8 km (5 miles) from Matara. If you plan a holiday in West Sri Lanka, look for hotels and other accommodation in Matara. Matara has rooms for a wide range of budgets as well as car hire and transport links.











