Surf Forecasts:
Trincomalee surf forecast from 16 Aug 2026:
- Most powerful swell: Monday 17 Aug, 5AM (local time) - 2.5ft (0.7m), 9s period, SE swell with 86 kJ wave energy.
Best Forecast Surf Conditions for Trincomalee this week:
The most powerful waves expected at Trincomalee in the next 16 days are 0.7m 9s and forecast to arrive on Monday (Aug 17) 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 0.9m 4s period and expected on Tuesday (Aug 18) at 5AM.
| Wave Type | Time (+0530) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Mon 17th Aug) | 2.5ft (0.7m) 9s |
Table - best surf conditions forecast for Trincomalee over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s be straight with you – the outlook for Trincomalee over the next 16 days is a proper flat spell. There’s nothing on the cards that’ll get a surfer out of bed. We’re looking at tiny dribbles from the SSE and SE, all under 2 ft, and the combined energy of all swells directed here barely cracks 90 (90 for the highest reading). The wind is mostly a cross-off from the WSW, which would keep it clean, but with no swell to speak of, it’s irrelevant.
The first week is a write-off. From Sunday 16 August right through to Saturday 23 August, every session is rated as poor surf conditions. Swell heights hover between 0.3 ft and 2 ft, with periods mostly short – 8 to 10 seconds – so there’s no push. On Thursday 20 August afternoon, it goes glassy with a 0.7 ft swell from the SSE at 8 seconds (combined energy 14), but that’s barely a ripple. The water temperature here is about average for the time of year, nothing unusual.
The second week runs the same story. Sunday 24 August to Monday 31 August, still poor surf conditions. Swell stays tiny, 0.7 ft to 2 ft, with periods all under 10 seconds except for a few 16-second and 18-second pulses on 22 and 25 August, but those are too small to do anything. The wind stays cross-off from the WSW, mostly moderate to fresh breeze, so the surface is clean but flat. The highest combined energy comes on Wednesday 26 August afternoon at 90, still weak.
Trincomalee is a point break that rarely breaks, and this stretch proves it. Crowds are possible here, but with nothing to surf, nobody’s out. There’s no standout – not a single day worth paddling for. A blank run like this is more normal for this area, so don’t get your hopes up. Forecasts can change, but as it stands, leave the board at home.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue afternoon. Warm (max 35°C on Sun afternoon, min 26°C on Sat night). Winds decreasing (strong winds from the WSW on Sat night, light winds from the NW by Tue afternoon). | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Tue night. Warm (max 34°C on Wed afternoon, min 26°C on Tue night). Winds decreasing (strong winds from the SW on Wed night, calm by Thu afternoon). | ||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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) | SSE 10 | SSE 10 | SE 10 | SE 9 | SE 10 | SE 10 | SE 9 | SE 10 | SE 9 | SSE 9 | SE 9 | SE 9 | SE 9 | S 16 | SSE 8 | SSE 8 | SSE 4 | SSE 8 | SSE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 65 | 39 | 50 | 84 | 54 | 50 | 65 | 24 | 23 | 32 | 21 | 21 | 26 | 21 | 7 | 26 | 3 | 6 | 24 |
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-on | cross-off | cross-off | cross-on | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | cross-off |
High Tide | 10:23PM0.55m | 10:30AM0.63m | 11:04PM0.55m | 11:06AM0.58m | 11:47PM0.53m | 11:42AM0.53m | 00:35AM0.52m | 12:21PM0.48m | 1:30AM0.50m | 1:08PM0.42m | 2:40AM0.49m | 2:14PM0.38m | 4:03AM0.50m | ||||||
Low Tide | 4:13AM0.13m | 4:54PM0.09m | 4:54AM0.17m | 5:27PM0.12m | 5:35AM0.22m | 5:59PM0.15m | 6:23AM0.27m | 6:32PM0.19m | 7:33AM0.31m | 7:13PM0.21m | 9:48AM0.33m | 8:19PM0.23m | |||||||
 |  | |  |  | | | |  |  | | | | | | | | | | |
 | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — |
 | — | — | 6:21 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:19 | — | — | 6:19 | — |
mm | — | — | — | — | — | — | — | — | 2 | 1 | — | 1 | — | — | — | — | — | — | — |
Temp °C | 28 | 33 | 35 | 29 | 33 | 35 | 29 | 33 | 34 | 29 | 33 | 34 | 29 | 33 | 34 | 29 | 32 | 34 | 28 |
Feels °C | 27 | 31 | 33 | 29 | 32 | 34 | 28 | 33 | 36 | 30 | 33 | 37 | 29 | 33 | 34 | 29 | 30 | 32 | 27 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SE 10 | SE 9 | SE 10 | SE 10 | SE 9 | SE 10 | SE 9 | SSE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SSE 8 | SSE 8 | SSE 4 | SE 5 | SSE 8 |
| kJ | 65 | 39 | 50 | 84 | 54 | 50 | 65 | 24 | 23 | 32 | 21 | 21 | 19 | 11 | 7 | 26 | 2 | 4 | 24 |
Swell 2 Height (m) Direction Period (s) | — | NW 4 | WNW 4 | — | W 4 | — | S 20 | SSE 5 | — | SE 4 | SSE 5 | SE 5 | SE 4 | SSE 6 | SSE 5 | S 15 | SE 8 | SSE 8 | S 20 |
| kJ | — | 1 | 3 | — | 1 | — | 31 | 3 | — | 2 | 2 | 1 | 2 | 3 | 2 | 4 | 3 | 6 | 8 |
Swell 3 Height (m) Direction Period (s) | — | SE 5 | — | — | SSE 5 | S 22 | — | S 19 | S 19 | S 19 | S 21 | S 20 | S 18 | S 16 | S 16 | — | NW 4 | S 13 | S 13 |
| kJ | — | 1 | — | — | 3 | 9 | — | 7 | 7 | 7 | 9 | 8 | 26 | 21 | 5 | — | 1 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | SW 4 | WSW 4 | SSE 4 | W 3 | SW 3 | SE 4 | WSW 3 | WSW 4 | SE 5 | WSW 3 | WSW 4 | — | WSW 4 | WSW 4 | — | WSW 4 | WSW 4 | — | WSW 4 |
| kJ | 21 | 8 | 5 | 7 | 3 | 7 | 12 | 5 | 4 | 8 | 5 | — | 19 | 4 | — | 14 | 5 | — | 20 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 194 | 194 | 907 | 194 | 194 | 907 | 194 | 194 | 961 | 194 | 194 | 958 | 194 | 410 | 350 | 343 | 194 | 1059 | 194 |
Best forecast wave conditions in East Sri Lanka | |||||||||||||||||||
Best forecast wave conditions in Sri Lanka | |||||||||||||||||||
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Information about the Trincomalee Surf forecast
The above surf forecast table for Trincomalee provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Trincomalee can be found by selecting the local surf guide option on the grey menu. Our Trincomalee 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 (Trincomalee) 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 Trincomalee 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 East Sri Lanka? If you are looking for accommodation near Trincomalee, camping, hotels and holiday cottages in East Sri Lanka, consider staying in Trincomalee which is 3 km (2 miles) away. Other places in and around East Sri Lanka where you can find information about places to rent, and car hire include Vavuniya which is 86 km (53 miles) away, Eravur Town and Anuradhapura.
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