Surf Forecasts:
Trincomalee surf forecast from 13 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 2PM (local time) - 2.5ft (0.7m), 9s period, SE swell with 83 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 Wednesday (Aug 19) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Friday (Aug 14) at 2AM.
| Wave Type | Time (+0530) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Wed 19th Aug) | 2.5ft (0.7m) 9s |
Table - best surf conditions forecast for Trincomalee over the next 16 days.
The Lowdown
Right then, let’s have a look at what’s on the table for Trincomalee. Honestly, it’s a tough stretch. The forecast is showing a long run of small, weak surf with the combined swell energy barely cracking 70 (weak energy) for the first week and a half, and the maximum we see anywhere is 131 (moderate energy) right at the end. The water temp is sitting at 83.3°F with an anomaly of 0.9°F, so pretty average for the time of year.
Trincomalee itself is a point break that’s very sheltered and rarely breaks, meaning it needs a very specific swell to fire. Unfortunately, the swell direction we’re getting is mostly SSE and SE, while the optimum swell direction for this spot is from the S. Even when there’s a pulse of energy, it’s hitting on the wrong angle and the combined energy is low. The first real nod to anything happening doesn’t appear until Thursday the 28th of August. On the morning of the 28th, we see a jump in energy to 131 (moderate energy), with a 2ft SSE swell at a 9-second period and a clean, cross-off breeze from the WSW at 12 mph. That’s the standout of the entire 16-day window—it’s the only time the energy gets into triple digits, and the conditions are clean. But with the swell still small and not coming from the best direction, it’s a promise, not a guarantee. Other than that single Thursday morning, the rest of the outlook is a long, flat gap with poor surf conditions across the board. For somewhere that rarely breaks, this kind of blank run is pretty normal. If that Thursday morning materialises, it’ll be something small and clean for a sneak. Keep an eye on it.
Short Range ForecastMostly dry. Warm (max 34°C on Fri afternoon, min 26°C on Thu night). Mainly strong winds. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Mon afternoon. Warm (max 34°C on Sun afternoon, min 26°C on Sun night). Winds decreasing (fresh winds from the WSW on Sun morning, calm by Tue afternoon). | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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) | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SE 11 | SSE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SSE 10 | SE 9 | SE 8 | SE 9 | SE 9 | SE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 65 | 67 | 64 | 40 | 39 | 41 | 55 | 41 | 48 | 49 | 50 | 53 | 54 | 51 | 81 | 36 | 22 | 69 | 21 | 20 | 51 |
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 | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | cross-off |
High Tide | 8:38AM0.70m | 9:00PM0.53m | 9:17AM0.69m | 9:42PM0.55m | 9:54AM0.67m | 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 | |||||||
Low Tide | 3:02PM0.07m | 2:48AM0.08m | 3:42PM0.06m | 3:31AM0.10m | 4:19PM0.07m | 4:13AM0.13m | 4:54PM0.09m | 4:54AM0.17m | 5:27PM0.12m | 5:35AM0.22m | 5:59PM0.15m | 6:23AM0.27m | 6:32PM0.19m | ||||||||
 | |  | |  |  | | |  | | | | |  |  | |  | | | | | |
 | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — |
 | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | — | 6:21 | — | — | 6:20 | — | — | 6:20 | — | — | 6:20 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | 1 | 1 | — | — | — |
Temp °C | 33 | 33 | 28 | 33 | 34 | 28 | 32 | 34 | 28 | 33 | 34 | 28 | 33 | 34 | 29 | 33 | 34 | 29 | 33 | 33 | 28 |
Feels °C | 31 | 31 | 27 | 32 | 32 | 26 | 30 | 32 | 27 | 31 | 32 | 27 | 33 | 37 | 30 | 32 | 37 | 30 | 33 | 35 | 31 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SE 11 | SSE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SSE 10 | SE 9 | SE 8 | SE 9 | SE 9 | SE 8 |
| kJ | 65 | 67 | 64 | 38 | 39 | 41 | 55 | 41 | 48 | 49 | 50 | 53 | 54 | 51 | 81 | 36 | 22 | 69 | 21 | 20 | 51 |
Swell 2 Height (m) Direction Period (s) | S 16 | NW 4 | S 21 | SSE 20 | SSE 19 | SSE 18 | SSE 17 | SSE 16 | SE 4 | WNW 4 | NW 4 | SE 4 | NW 4 | — | S 20 | SE 5 | S 19 | S 19 | SE 5 | S 20 | S 19 |
| kJ | 5 | 1 | 9 | 40 | 37 | 32 | 30 | 26 | 1 | 2 | 1 | 1 | 1 | — | 31 | 4 | 7 | 7 | 4 | 8 | 7 |
Swell 3 Height (m) Direction Period (s) | — | S 22 | S 22 | NW 5 | — | SE 4 | NW 4 | SE 5 | — | SE 5 | — | — | NW 5 | S 22 | N 5 | W 4 | — | S 20 | W 4 | — | S 12 |
| kJ | — | 9 | 9 | 1 | — | 1 | 1 | 1 | — | 1 | — | — | 1 | 9 | 1 | 1 | — | 30 | 1 | — | 3 |
Wind waves Height (m) Direction Period (s) | WSW 4 | WSW 2 | WSW 4 | W 4 | W 3 | SW 4 | W 4 | WSW 3 | SW 4 | SW 3 | — | WSW 4 | SW 3 | SE 4 | W 3 | SW 3 | ESE 4 | WSW 3 | SW 3 | SE 4 | W 3 |
| kJ | 11 | 1 | 21 | 7 | 5 | 21 | 7 | 3 | 14 | 3 | — | 10 | 6 | 4 | 7 | 2 | 8 | 8 | 2 | 3 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 194 | 194 | 194 | 201 | 194 | 194 | 194 | 907 | 194 | 194 | 201 | 194 | 194 | 956 | 194 | 194 | 958 | 194 | 194 | 958 | 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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