Surf Forecasts:
Trincomalee surf forecast from 17 Aug 2026:
- Most powerful swell: Tuesday 18 Aug, 2AM (local time) - 2.5ft (0.7m), 9s period, SE swell with 77 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 Tuesday (Aug 18) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Sunday (Aug 23) at 5AM.
| Wave Type | Time (+0530) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Tue 18th Aug) | 2.5ft (0.7m) 9s |
Table - best surf conditions forecast for Trincomalee over the next 16 days.
The Lowdown
Alright, let's shoot the breeze. It's a quiet one out there, and I'm not going to sugarcoat it: there's no surf on the table for the next 16 days. We're looking at a flat spell, and it ain't pretty. The only name in the game is Trincomalee, and that spot rarely breaks anyway. It's just too sheltered to catch anything unless the stars align perfectly, and they're definitely not aligned right now.
From Monday the 17th all the way to Tuesday the 1st of September, it's a desert. We're talking swell heights of 0.7ft to 2ft at best, with periods that are either too short or too long to do any good. The energy is weaker than a lukewarm cup of tea—mostly in the single and low double digits, with a couple of days pushing into the 70s, but it's all pointing the wrong way. It's just mush.
The water's about 83°F, which is normal for this time of year, so at least you won't freeze while you're staring at the flatness. The wind is mostly cross-off or fresh, and we might get a glassy moment on a couple of afternoons, but it doesn't matter. Clean and tiny is still tiny. This is just a standard dead period for this area, and it can go on for a while.
Honestly, there's no point in even bringing your board. Save yourself the trouble. The forecast could flip, but right now, it's a total blank. I'd say go find something else to do, and check back with me in a week. Nothing to ride, folks. Keep it real.
Rusty.
Short Range ForecastMostly dry. Warm (max 35°C on Mon afternoon, min 26°C on Mon night). Mainly strong winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 35°C on Sat afternoon, min 26°C on Sat night). Winds increasing (calm on Thu afternoon, strong winds from the WSW by Fri night). | |||||||||||||||||||
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) | SE 10 | SE 9 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | S 16 | SSE 8 | SSE 8 | SSE 5 | SE 4 | SSE 8 | SSE 11 | SSE 11 | SSE 9 | SSE 10 | SSE 9 | SSE 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 49 | 77 | 24 | 23 | 22 | 21 | 13 | 26 | 21 | 7 | 7 | 3 | 6 | 13 | 13 | 12 | 25 | 19 | 8 | 30 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | 3:47PM0.37m | 5:16AM0.53m | 5:15PM0.38m | ||||||||
Low Tide | 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 | 11:38AM0.31m | 9:48PM0.24m | 12:33PM0.28m | 11:01PM0.22m | |||||||
 |  |  | | | | | | | |  | | | | | | | | | | |
 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — |
 | 6:20 | — | — | 6:20 | — | — | 6:20 | — | — | 6:19 | — | — | 6:19 | — | — | 6:17 | — | — | 6:17 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 35 | 29 | 33 | 34 | 29 | 33 | 35 | 28 | 33 | 34 | 28 | 33 | 34 | 29 | 33 | 35 | 28 | 33 | 35 | 28 |
Feels °C | 34 | 28 | 33 | 36 | 30 | 32 | 34 | 27 | 33 | 36 | 27 | 32 | 34 | 28 | 31 | 33 | 27 | 30 | 33 | 26 |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 9 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSE 8 | SSE 8 | SSE 4 | SSE 5 | SSE 5 | SE 4 | SSE 6 | SSE 11 | SSE 9 | SSE 10 | SSE 9 | SSE 9 |
| kJ | 49 | 77 | 24 | 23 | 22 | 21 | 13 | 19 | 7 | 7 | 2 | 3 | 3 | 3 | 3 | 12 | 25 | 19 | 8 | 30 |
Swell 2 Height (m) Direction Period (s) | SE 4 | S 20 | SSE 5 | SSE 5 | SSE 4 | SE 5 | SSE 5 | SSE 4 | SSE 5 | SSE 5 | SSE 8 | SE 8 | SSE 8 | SSE 8 | SSE 11 | SSE 5 | SE 4 | NW 5 | SSE 5 | SE 4 |
| kJ | 4 | 31 | 3 | 2 | 1 | 1 | 2 | 2 | 3 | 3 | 7 | 3 | 6 | 13 | 13 | 2 | 3 | 1 | 2 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | NW 5 | S 19 | S 19 | S 21 | S 20 | S 18 | S 16 | S 16 | SE 8 | NW 4 | S 13 | S 20 | S 18 | S 18 | S 16 | S 15 | S 14 | S 20 |
| kJ | — | — | 1 | 7 | 7 | 9 | 8 | 26 | 21 | 5 | 2 | 1 | 4 | 7 | 7 | 6 | 5 | 4 | 4 | 8 |
Wind waves Height (m) Direction Period (s) | — | WSW 4 | WSW 4 | — | WSW 3 | SW 3 | — | WSW 4 | WSW 4 | W 3 | WSW 4 | WSW 4 | SE 4 | WSW 3 | WSW 4 | — | WSW 4 | WSW 4 | WSW 3 | WSW 4 |
| kJ | — | 13 | 5 | — | 5 | 3 | — | 22 | 8 | 1 | 14 | 5 | 6 | 10 | 5 | — | 24 | 13 | 3 | 25 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 907 | 194 | 195 | 907 | 194 | 194 | 343 | 194 | 194 | 194 | 194 | 194 | 797 | 195 | 194 | 302 | 194 | 194 | 907 | 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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