
Surf Forecasts:
Trincomalee surf forecast from 7 Sep 2026:
- Most powerful swell: Tuesday 8 Sep, 11PM (local time) - 3ft (0.9m), 8s period, SE swell with 118 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 Tuesday (Sep 08) at 11PM. 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 Saturday (Sep 12) at 5AM.
| Wave Type | Time (+0530) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Tue 8th Sep) | 3ft (0.9m) 8s |
Table - best surf conditions forecast for Trincomalee over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get straight into it. We’re looking at Trincomalee for the next 16 days, and I gotta be honest with you – it’s a tough stretch. The combined swell energy stays weak, mostly in the 40s to 60s, barely cracking 100 on a few afternoons. With the swell direction locked in from the SE and the optimum for this point being from the S, we’ve got a real mismatch. The forecast is calling for "poor surf conditions" across the board, with scores of zero out of ten. There’s no standout window, no "go" days. The only break in the mix is Trincomalee itself, a sheltered point that rarely breaks, and for this entire 16-day period, it simply isn’t delivering.
We start right from Monday, September 7th. The morning is glassy but the swell is tiny at 2 ft, with a short period of 8 seconds. The combined energy is just 62. It’s too small and weak to bother. That afternoon, onshore wind picks up to 12 mph, and it’s a write-off. Tuesday and Wednesday are much the same: 2 ft to 3 ft swell, short period, and energy staying well under 120. Winds are light to moderate, mostly cross-off, but none of that matters when there’s no real push in the water. Even Wednesday morning when the energy hits 110, the swell height is only 3 ft and the period is 9 seconds – not enough to get excited about.
The second half of the first week and into the second week doesn’t get any better. From Thursday the 10th through the weekend, the swell drops back to 2 ft or 2 ft. The water temperature is 84°F with an anomaly of 1°F, so it’s about average for this time of year – just warm bath water, but no waves to enjoy. The wind patterns stay cross-off for the most part, with mornings cleaner than afternoons, but the wave energy is just too weak. By the time we hit mid-September, the swell drops to a pathetic 0.6 ft on Thursday the 17th, with energy down to single digits (9). That’s barely a ripple.
The last few days, from the 18th through the 22nd, see the swell stubbornly stuck at 1 ft to 2 ft with periods of 8 to 9 seconds. The combined energy finally nudges 100 on the morning of the 22nd, but it’s too little, too late. Winds get stronger, with the breeze hitting 25 mph at times, but the surf remains “poor.” This break is so sheltered and breaks so rarely that a blank run like this is actually pretty normal for the area. We’ve got 16 days of nothing – a total gap with no recommendations.
Hang in there, but this one’s a miss. Forecasts can change, but for now, leave the board at home.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Mon afternoon. Warm (max 35°C on Wed afternoon, min 27°C on Mon night). Winds increasing (calm on Mon morning, fresh winds from the SW by Wed night). | Days 4-6 Weather SummarySome drizzle, heaviest during Thu night. Warm (max 34°C on Thu morning, min 26°C on Fri night). Mainly strong winds. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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) | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 8 | SE 9 | SE 9 | SE 9 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SE 9 | SE 9 | SE 9 | SE 9 | SE 10 | SE 9 |
Wave Graph | |||||||||||||||||||||
54 | 23 | 78 | 58 | 59 | 118 | 99 | 101 | 118 | 76 | 83 | 115 | 50 | 38 | 100 | 40 | 41 | 81 | 41 | 46 | 41 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-off | cross-off | on | cross-off | cross-off | off | cross-off | cross-off | cross-on | cross-off | cross-off | on | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:35PM0.46m | 6:07AM0.63m | 6:36PM0.50m | 6:55AM0.67m | 7:23PM0.55m | 7:36AM0.69m | 8:04PM0.59m | 8:13AM0.69m | 8:42PM0.61m | 8:49AM0.68m | 9:18PM0.63m | 9:23AM0.65m | 9:53PM0.63m | ||||||||
Low Tide | 11:38AM0.22m | 11:18PM0.19m | 12:33PM0.17m | 00:18AM0.16m | 1:18PM0.13m | 1:09AM0.14m | 1:57PM0.10m | 1:54AM0.13m | 2:33PM0.09m | 2:36AM0.13m | 3:07PM0.09m | 3:14AM0.15m | 3:37PM0.11m | 3:51AM0.18m | |||||||
5:56 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | |
— | 6:09 | — | — | 6:08 | — | — | 6:08 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:06 | — | |
mm | — | 1 | 1 | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 2 | — |
Temp °C | 33 | 30 | 29 | 33 | 32 | 29 | 34 | 35 | 29 | 34 | 34 | 29 | 34 | 34 | 29 | 32 | 32 | 29 | 34 | 33 | 29 |
Feels °C | 36 | 32 | 30 | 33 | 35 | 29 | 33 | 34 | 29 | 33 | 37 | 29 | 34 | 38 | 29 | 33 | 32 | 28 | 34 | 35 | 29 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 8 | SE 9 | SE 9 | SE 9 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SE 9 | SE 9 | SE 9 | SE 9 | SE 10 | SE 9 |
54 | 23 | 78 | 58 | 59 | 118 | 99 | 101 | 118 | 76 | 83 | 115 | 50 | 38 | 100 | 40 | 41 | 81 | 41 | 46 | 41 | |
Swell 2 Height (m) Direction Period (s) | WSW 3 | SSE 10 | NW 5 | S 16 | S 18 | S 18 | SE 16 | SE 16 | SE 16 | SE 9 | SSE 14 | SSE 14 | SW 3 | SSE 13 | SE 13 | WNW 4 | — | NNW 4 | NW 4 | W 3 | NW 4 |
1 | 9 | 1 | 5 | 6 | 6 | 11 | 10 | 9 | 21 | 21 | 20 | 3 | 17 | 7 | 1 | — | 1 | 1 | 1 | 1 | |
Swell 3 Height (m) Direction Period (s) | S 19 | S 18 | S 17 | S 16 | — | S 19 | NW 4 | WNW 3 | NW 5 | SSE 15 | S 19 | S 19 | SSE 14 | NW 5 | — | NW 5 | S 18 | — | — | S 16 | S 20 |
7 | 6 | 6 | 5 | — | 29 | 1 | 1 | 1 | 21 | 7 | 7 | 18 | 1 | — | 1 | 6 | — | — | 5 | 7 | |
Wind waves Height (m) Direction Period (s) | — | ESE 4 | WSW 3 | SW 3 | ESE 3 | WSW 3 | SW 4 | SE 3 | W 3 | SW 3 | SE 3 | WSW 3 | — | ESE 3 | WSW 4 | SW 4 | ESE 3 | WSW 3 | SW 3 | WSW 3 | WSW 4 |
— | 9 | 8 | 2 | 4 | 8 | 3 | 3 | 7 | 3 | 7 | 9 | — | 5 | 14 | 2 | 4 | 3 | 3 | 3 | 16 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 410 | 956 | 299 | 467 | 797 | 470 | 194 | 1119 | 194 | 410 | 797 | 343 | 194 | 797 | 194 | 194 | 410 | 194 | 194 | 1291 | 194 |
Best forecast wave conditions in East Sri Lanka | |||||||||||||||||||||
Best forecast wave conditions in Sri Lanka | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










