
Surf Forecasts:
Trincomalee surf forecast from 9 Aug 2026:
- Most powerful swell: Thursday 13 Aug, 2AM (local time) - 3ft (0.9m), 8s period, SE swell with 100 kJ wave energy.
Best Forecast Surf Conditions for Trincomalee this week:
The most powerful waves expected at Trincomalee in the next 16 days are 0.9m 8s and forecast to arrive on Thursday (Aug 13) 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 0.9m 4s period and expected on Monday (Aug 10) at 5AM.
| Wave Type | Time (+0530) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Thu 13th Aug) | 3ft (0.9m) 8s |
Table - best surf conditions forecast for Trincomalee over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for the next couple of weeks.
Well, I’ll be honest with you, it’s a bit of a tough stretch ahead. The surf is going to be pretty lacklustre overall, with a lot of small, weak energy and cross-offshore winds that just don’t do us any favours. There’s nothing on the immediate horizon that’s worth paddling out for, and we’re looking at a long, quiet run until the very end of the forecast. The first decent bump in energy doesn’t even show up until Tuesday, the 20th of August, and even then, it’s not much to write home about. The combined wave energy is weak, sitting in the double digits for most of the period, with a few brief moments of moderate energy (100-150) that still get a “poor surf conditions” tag.
The only spot on the menu is Trincomalee (Sri Lanka), a point break that rarely breaks. It’s a sheltered little setup, so it needs a very specific swell direction to work. The water temp is sitting at a warm 84°F, which is about average for the time of year, so no surprises there.
Now, let’s talk about the one day that might just get a little interesting. On Thursday, the 20th of August, during the afternoon, we see a tiny bump in swell size to 3 ft from the SSE, with a combined energy of 109 (moderate). The wind goes light and crosses up, with a period of only 7 seconds – that’s short-period, wind-driven slop. It’s still not what I’d call good, but it’s the only window where the numbers climb a little. The swell direction is from the SSE, which is not the optimum S direction the break prefers, so the quality is still going to be poor.
The tail end of the run, around Friday, the 21st of August, shows a long-period groundswell from the S at 19 seconds, but with a tiny 0.7 ft of height. That’s a lot of period with no push. The wind does go light offshore on the Friday afternoon, but with that little energy, it’s not going to break. It’s a tease, nothing more.
For the rest of the time, it’s a constant grind of small, weak swell and cross-off winds. The crowds at Trincomalee are only “sometimes” an issue, but honestly, with surf this poor, they won’t be a problem anyway.
So, to sum it up: there’s no standout session in this 16-day window. The best I can offer is a very small, short-period bump on the 20th, but it’s not going to be clean or punchy. This is a blank run, plain and simple. Sometimes the ocean just goes quiet, and this is one of those times. Keep your gear ready and hope the forecasts change.
Rusty.
Short Range ForecastMostly dry. Warm (max 34°C on Tue afternoon, min 26°C on Sun night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 34°C on Wed afternoon, min 26°C on Thu night). Winds increasing (light winds from the NNW on Wed afternoon, strong winds from the WSW by Thu night). | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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 11 | SE 9 | SSE 9 | SSE 10 | SSE 11 | SSE 9 | SSE 12 | SSE 20 | SE 8 | SE 8 | SSE 11 | SE 8 | SSE 10 | SSE 10 | SSE 10 | SE 10 | SE 11 | SSE 10 | SSE 11 | SE 11 | SE 10 |
Wave Graph | |||||||||||||||||||||
45 | 20 | 29 | 41 | 47 | 65 | 79 | 75 | 70 | 32 | 68 | 100 | 67 | 68 | 65 | 51 | 56 | 41 | 45 | 56 | 52 | |
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 | cross-off |
High Tide | 5:13PM0.42m | 6:21AM0.61m | 6:30PM0.45m | 7:12AM0.65m | 7:27PM0.48m | 7:57AM0.68m | 8:16PM0.51m | 8:38AM0.70m | 9:00PM0.53m | 9:17AM0.69m | 9:42PM0.55m | 9:54AM0.67m | 10:23PM0.55m | ||||||||
Low Tide | 11:38AM0.22m | 11:19PM0.12m | 12:41PM0.17m | 00:20AM0.10m | 1:34PM0.13m | 1:14AM0.08m | 2:20PM0.09m | 2:03AM0.07m | 3:02PM0.07m | 2:48AM0.08m | 3:42PM0.06m | 3:31AM0.10m | 4:19PM0.07m | 4:13AM0.13m | |||||||
5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | |
— | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 32 | 32 | 28 | 31 | 33 | 28 | 32 | 34 | 28 | 32 | 34 | 29 | 32 | 34 | 28 | 33 | 34 | 29 | 33 | 31 | 28 |
Feels °C | 31 | 30 | 26 | 30 | 32 | 26 | 31 | 32 | 27 | 31 | 34 | 29 | 31 | 32 | 26 | 32 | 34 | 29 | 33 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | SSE 11 | SE 9 | SSE 9 | SSE 10 | SSE 11 | SSE 9 | SSE 12 | SSE 12 | SE 8 | SE 8 | SSE 11 | SE 8 | SSE 10 | SSE 10 | SSE 10 | SE 10 | SE 11 | SSE 10 | SSE 11 | SE 11 | SE 10 |
45 | 20 | 29 | 41 | 47 | 65 | 79 | 55 | 70 | 32 | 68 | 100 | 67 | 68 | 65 | 51 | 56 | 41 | 45 | 56 | 52 | |
Swell 2 Height (m) Direction Period (s) | S 19 | SSE 11 | S 18 | S 16 | S 16 | SSE 12 | SSE 21 | SSE 20 | SSE 18 | SSE 11 | SSE 16 | S 15 | S 16 | — | S 21 | WNW 5 | SSE 19 | SSE 18 | SSE 17 | SE 16 | SSE 4 |
7 | 12 | 6 | 5 | 5 | 14 | 42 | 75 | 62 | 24 | 26 | 19 | 5 | — | 9 | 2 | 37 | 32 | 30 | 11 | 2 | |
Swell 3 Height (m) Direction Period (s) | — | S 19 | S 11 | — | S 24 | S 23 | NW 4 | SE 20 | SSE 12 | SSE 17 | S 16 | SSE 15 | — | S 22 | — | SSE 20 | — | SE 4 | — | — | N 5 |
— | 7 | 9 | — | 12 | 10 | 1 | 15 | 13 | 27 | 5 | 76 | — | 9 | — | 41 | — | 1 | — | — | 1 | |
Wind waves Height (m) Direction Period (s) | WSW 4 | WSW 3 | WSW 4 | WSW 3 | WSW 3 | WSW 4 | SW 4 | SE 4 | WSW 3 | WSW 3 | SE 4 | WSW 3 | SW 4 | — | WSW 4 | WSW 4 | WSW 3 | WSW 4 | W 4 | WSW 3 | WSW 3 |
9 | 7 | 16 | 5 | 1 | 14 | 6 | 5 | 10 | 5 | 7 | 8 | 3 | — | 16 | 8 | 3 | 18 | 6 | 2 | 13 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 194 | 194 | 194 | 194 | 343 | 194 | 194 | 343 | 194 | 410 | 956 | 194 | 194 | 907 | 194 | 194 | 194 | 194 | 201 | 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.











