Surf Forecasts:
Trincomalee surf forecast from 10 Sep 2026:
- Most powerful swell: Friday 11 Sep, 8PM (local time) - 3.5ft (1.1m), 8s period, SE swell with 166 kJ wave energy.
Best Forecast Surf Conditions for Trincomalee this week:
The most powerful waves expected at Trincomalee in the next 16 days are 1.1m 8s and forecast to arrive on Friday (Sep 11) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 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 | 8PM (Fri 11th Sep) | 3.5ft (1.1m) 8s |
Table - best surf conditions forecast for Trincomalee over the next 16 days.
The Lowdown
Alright, let’s get real about Trincomalee. Honestly, the outlook is a bit of a letdown. There are no good surf options in the entire 16-day window if you look at the recommendations, but let me talk you through what we’re actually looking at.
This is a sheltered point break that rarely breaks, and throughout the whole period we’ve got nothing but small swell. The combined swell energy is weak, hitting only about 115 (moderate energy) on the Thursday morning of the 10th, but it’s a tiny 2ft from the southeast with a 10-second period. The water temperature is sitting at 84°, which is about normal for this time of year, so no drama there.
Thursday morning the 10th has a light cross-off breeze from the WSW at 6 mph, keeping the surface clean, but honestly 2ft is just not enough to get excited about. The wind then swings onshore in the afternoon from the east at the same speed, messing with what little shape there is.
Friday the 11th looks similar – still 2ft in the morning, cross-off breeze, but the wave energy drops further to 80 (weak) and the period shortens to seconds. The rest of the day and through Saturday the 12th is more of the same: tiny, weak, and onshore in the afternoons.
Sunday the 13th morning actually gets a dead calm glassy moment with a 3 mph SSE breeze, and the swell holds at 2ft from the southeast with a 9-second period. It’s clean, but it’s still tiny. A beginner could maybe find a knee-high runner, but that’s about it.
After that, from Monday the 14th right through to the end of the period on September 25th, the swell drops even further. We’re looking at 0.5ft to 2ft for the most part, with energy numbers barely cracking 60. There’s a little spike in combined energy on the 25th – 134 (moderate energy) with a 2ft southeast swell at 10 seconds, but the wind is a stiff 19-22 mph from the WSW, so it’ll be bumpy and blown out. The swell direction is southeast, but this break really needs a south swell to work, so the angle is off, too.
Long story short: it’s a rare break, and in this 16-day block, it simply isn’t doing its thing. There’s a huge gap from the start to the finish with no real surf on offer. For this area, a blank run like this isn’t that unusual, so don’t get too down – forecasts can change.
This is Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 34°C on Thu morning, min 27°C on Thu night). Winds decreasing (fresh winds from the WSW on Fri night, light winds from the SW by Sat night). | Days 4-6 Weather SummaryHeavy rain (total 33mm), heaviest during Mon night. Warm (max 32°C on Sun morning, min 25°C on Tue night). Winds increasing (calm on Sun morning, fresh winds from the WSW by Tue night). | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
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 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SE 9 | SE 9 | SE 8 | SE 9 | SE 10 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 9 | SSE 8 | SSE 8 | S 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 76 | 68 | 148 | 62 | 37 | 125 | 59 | 39 | 75 | 50 | 45 | 79 | 33 | 34 | 17 | 17 | 12 | 12 | 7 | 7 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | cross-off | cross-off | on | cross-off | cross-off | on | cross-off | glassy | on | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 8:04PM0.59m | 8:13AM0.69m | 8:42PM0.61m | 8:49AM0.68m | 9:18PM0.63m | 9:23AM0.65m | 9:53PM0.63m | 9:56AM0.62m | 10:29PM0.63m | 10:29AM0.57m | 11:07PM0.61m | 11:03AM0.52m | 11:50PM0.58m | ||||||||
Low Tide | 1:57PM0.10m | 1:54AM0.13m | 2:33PM0.09m | 2:36AM0.13m | 3:07PM0.09m | 3:14AM0.15m | 3:37PM0.11m | 3:51AM0.18m | 4:04PM0.13m | 4:27AM0.21m | 4:28PM0.16m | 5:03AM0.25m | 4:52PM0.19m | ||||||||
 |  |  | | |  | | | | |  | | |  |  | | |  |  | | | |
 | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — |
 | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:06 | — | — | 6:06 | — | — | 6:05 | — | — | 6:05 | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 8 | 18 | — | 4 | 2 | — | — | — |
Temp °C | 34 | 30 | 30 | 34 | 30 | 29 | 33 | 30 | 29 | 32 | 30 | 29 | 32 | 31 | 26 | 31 | 30 | 25 | 29 | 31 | 27 |
Feels °C | 35 | 31 | 33 | 34 | 31 | 30 | 34 | 31 | 32 | 35 | 33 | 30 | 34 | 34 | 28 | 34 | 31 | 25 | 29 | 32 | 26 |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SE 9 | SE 9 | SE 8 | SE 9 | SE 10 | SE 7 | SE 8 | SE 8 | SE 5 | SE 8 | SE 9 | SE 9 | SSE 8 | SE 8 | SSE 8 |
| kJ | 76 | 68 | 148 | 62 | 37 | 125 | 59 | 39 | 75 | 50 | 45 | 79 | 33 | 34 | 5 | 16 | 12 | 12 | 7 | 3 | 6 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SE 13 | WSW 3 | S 21 | SSE 11 | WSW 3 | S 16 | SE 10 | WSW 3 | — | SE 8 | S 15 | S 14 | S 13 | — | SE 5 | SE 4 |
| kJ | 38 | 21 | 20 | 18 | 17 | 7 | 2 | 8 | 12 | 2 | 5 | 4 | 2 | — | 17 | 17 | 4 | 4 | — | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | WSW 3 | S 19 | SSE 11 | — | — | — | SE 12 | — | SE 11 | S 18 | S 20 | S 20 | — | — | NNW 4 | S 10 | S 9 | S 18 | S 13 | SSE 8 | S 17 |
| kJ | 1 | 7 | 13 | — | — | — | 6 | — | 30 | 7 | 8 | 7 | — | — | 1 | 2 | 2 | 7 | 3 | 7 | 6 |
Wind waves Height (m) Direction Period (s) | — | ESE 4 | WSW 3 | SSW 3 | SE 4 | WSW 3 | — | ESE 4 | W 2 | S 3 | ESE 4 | WSW 3 | SW 4 | — | WSW 3 | SW 2 | WSW 3 | WSW 3 | WSW 3 | — | W 3 |
| kJ | — | 10 | 5 | 1 | 16 | 5 | — | 13 | 1 | 1 | 9 | 6 | 5 | — | 4 | 1 | 3 | 5 | 3 | — | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 410 | 907 | 484 | 410 | 907 | 907 | 1306 | 797 | 299 | 410 | 1005 | 194 | 204 | 1005 | 194 | 194 | 958 | 194 | 194 | 194 | 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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