Surf Forecasts:
Dondra surf forecast from 17 Aug 2026:
- Most powerful swell: Tuesday 18 Aug, 11AM (local time) - 7.5ft (2.3m), 19s period, SSW swell with 3,961 kJ wave energy.
Best Forecast Surf Conditions for Dondra this week:
The most powerful waves expected at Dondra in the next 16 days are 2.3m 19s and forecast to arrive on Tuesday (Aug 18) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Friday (Aug 21) at 5AM.
| Wave Type | Time (+0530) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Tue 18th Aug) | 7.5ft (2.3m) 19s |
Table - best surf conditions forecast for Dondra over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about what’s cooking at Dondra. This reef setup is a bit inconsistent, but when it turns on, it can be a fun little playground. The water is sitting at a warm 81°, which is pretty normal for this time of year—nothing crazy there.
Right now, we’re looking at a pretty quiet start. Monday 17th August is a bit of a write-off with small, weak swell and a messy cross-shore wind. The energy is low at 1010, so don’t expect much. We’ll see a solid jump on Tuesday 18th August, though. That’s when a SSW swell kicks in at 7ft to 8ft, and the period sits at 19 seconds—that’s proper groundswell energy. The wind turns to a nice cross-off, keeping things clean. The combined energy is strong at 3962 to 4013, so there’s plenty of push. This is the standout window. It’s a bit on the bigger side, so more suited to experienced surfers, and the long period means the sets will be well-spaced, making paddling out a bit easier. Keep an eye on the tide, as the forecast mentions “questionable tide conditions,” but the quality is there.
Wednesday 19th and Thursday 20th August keep the goods rolling. Swell holds around 7ft to 8ft from the SSW, periods dropping a bit but still solid (16-17 seconds), and the wind stays clean cross-off. Energy remains strong in the 3000s, so you’ll get plenty of power. Friday 21st sees the swell ease to 5ft-5ft, but the wind holds, and the wave direction swings more southerly. It’s still fun, but the energy is dropping through the week.
We then hit a bit of a lull from Saturday 22nd through to mid-week after that. The swell stays mostly in the 4ft to 6ft range, with moderate energy in the 1000s, and the wind gets a bit more cross than offshore at times. It’s not terrible, but it’s not the highlight of the outlook. The second week, from around 27th August, sees a bit of a mix. Some afternoons clean up with cross-off winds, but mornings are often cross-shore and choppy. The swell is inconsistent, and the energy is moderate.
The real standout is still Tuesday 18th August through Thursday 20th August. After that, things get a bit more average, but you’ll still find some waves if you’re keen. Later in the window, from 29th August into the start of September, there’s a bit of a pulse again with 6ft to 7ft SSW swell and clean cross-off winds, but the energy is a notch lower than that first big push. Worth a look if you’re patient.
Rusty
Short Range ForecastModerate rain (total 11mm), heaviest on Mon afternoon. Warm (max 29°C on Tue morning, min 25°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Thu night. Warm (max 29°C on Thu afternoon, min 25°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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 22 | SSW 21 | SSW 19 | SSW 19 | SSW 18 | SSW 17 | S 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | S 14 | S 17 | S 15 | S 15 | SSW 14 | S 14 | S 13 | S 13 |
Wave Graph | ||||||||||||||||||||
887 | 1311 | 3961 | 3757 | 3393 | 2437 | 1761 | 3228 | 2523 | 2054 | 1499 | 1121 | 938 | 809 | 1087 | 1275 | 694 | 843 | 799 | 573 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | 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 | 4:35PM0.47m | 5:09AM0.50m | 4:57PM0.43m | 5:32AM0.47m | 5:16PM0.39m | 5:55AM0.42m | 5:27PM0.34m | 6:21AM0.38m | 5:00PM0.29m | 7:24AM0.33m | 2:42AM0.29m | 12:37PM0.37m | 1:47AM0.33m | |||||||
Low Tide | 10:46PM0.03m | 11:12AM0.13m | 11:06PM0.08m | 11:37AM0.17m | 11:22PM0.13m | 12:04PM0.21m | 11:31PM0.17m | 12:41PM0.26m | 11:06PM0.22m | 8:17PM0.22m | 6:15AM0.27m | 7:39PM0.17m | ||||||||
— | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | |
6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:19 | — | — | 6:19 | — | — | 6:17 | — | — | 6:17 | — | |
mm | 2 | 8 | 1 | — | — | — | — | — | — | — | 2 | 1 | — | 2 | — | — | — | — | — | — |
Temp °C | 28 | 26 | 29 | 29 | 26 | 29 | 29 | 27 | 29 | 29 | 27 | 28 | 29 | 27 | 29 | 28 | 27 | 29 | 29 | 26 |
Feels °C | 28 | 28 | 29 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 29 | 28 | 29 | 29 | 30 | 28 | 29 | 29 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 22 | SSW 18 | SSW 19 | SSW 19 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | S 14 | S 13 | S 15 | S 15 | SSW 14 | S 14 | S 13 | S 13 |
887 | 1182 | 3961 | 3757 | 3393 | 2437 | 1761 | 3228 | 2523 | 2054 | 1499 | 1121 | 938 | 564 | 1087 | 1275 | 694 | 843 | 799 | 573 | |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSW 21 | W 9 | SSE 10 | SSE 9 | S 20 | S 18 | S 12 | W 10 | — | WNW 10 | WNW 10 | S 19 | S 17 | S 17 | S 26 | S 10 | S 21 | S 20 | S 19 |
160 | 1311 | 85 | 80 | 56 | 910 | 1615 | 228 | 48 | — | 34 | 33 | 247 | 809 | 376 | 13 | 153 | 323 | 284 | 450 | |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SSE 10 | SSE 10 | — | S 21 | SE 9 | — | — | — | — | SE 8 | S 22 | WNW 10 | E 7 | — | — | S 24 | SW 19 | WNW 8 | SW 18 |
102 | 111 | 83 | — | 323 | 39 | — | — | — | — | 3 | 36 | 31 | 1 | — | — | 97 | 15 | 20 | 48 | |
Wind waves Height (m) Direction Period (s) | WSW 10 | W 9 | W 6 | W 6 | W 9 | W 6 | W 6 | W 5 | W 6 | W 6 | W 6 | WSW 6 | W 6 | W 6 | W 6 | W 6 | W 5 | W 6 | W 6 | W 5 |
315 | 347 | 108 | 153 | 288 | 122 | 139 | 99 | 122 | 134 | 132 | 160 | 156 | 146 | 126 | 106 | 71 | 77 | 39 | 46 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 895 | 175 | 167 | 787 | 175 | 175 | 395 | 175 | 167 | 174 | 175 | 174 | 895 | 175 | 174 | 32 | 175 | 174 | 788 | 175 |
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.











