Surf Forecasts:
Trincomalee surf forecast from 5 Sep 2026:
- Most powerful swell: Wednesday 9 Sep, 2AM (local time) - 3ft (0.9m), 9s period, SE swell with 112 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 9s and forecast to arrive on Wednesday (Sep 09) 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 Wednesday (Sep 09) at 5AM.
| Wave Type | Time (+0530) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Wed 9th Sep) | 3ft (0.9m) 9s |
Table - best surf conditions forecast for Trincomalee over the next 16 days.
The Lowdown
Alright, let's talk in feet and miles per hour. Uncle Rusty's got the lowdown.
Straight up, this 16-day window is a bust for Trincomalee. The swell is absolutely flat. We're looking at wave faces that barely push 3 feet, and most days are knee-high or less. The energy is pathetic—combined swell energy numbers are mostly in the dinky double digits (50, 57, 56), with only one day on the 9th hitting a moderate 151 (151), but that day is still labeled "poor surf conditions." Not good.
Trincomalee (Trincomalee) is a beginner-friendly point break, but it *rarely breaks*, and this forecast proves exactly why. The swell is coming from the SE and SSE, which isn't the optimum S direction this spot needs to fire. The water temperature is about average for the season, nothing unusual.
Saturday, September 5th kicks it off. Morning brings a glassy 2-foot swell from the SE with an 8-second period, and the energy is only 50 (50). Sounds clean, but it's still "poor surf conditions." The afternoon gets blown out with an onshore ESE wind at 12 mph and a choppy 3-foot short-period mess. Not worth it.
Sunday the 6th is a no-go. Clean 2-foot swell in the morning with a cross-off breeze, but still poor. Afternoon turns onshore.
The rest of that first week is a sad repeat: tiny swells (1 to 2 feet), short periods (4 to 9 seconds), and winds that are either cross-off or onshore. You get some nice offshore and glassy moments—like Friday the 11th with a light offshore breeze, or Wednesday the 16th with a glassy afternoon. But with the swell barely a foot high, it's flat. No waves to surf.
The second week through Sunday, September 20th is the same story—swell drops to under a foot, periods are short (7-10 seconds), energy in the single digits or low teens (10 to 44). Clean water is common, but you need some push.
Bottom line: There is no standout here. No swell, no power, no ride. For a spot that already rarely breaks, this is a normal dry spell for Trincomalee. Wait for a proper S swell to roll in. The ocean is just taking a nap.
Keep the wax dry.
Rusty
Short Range ForecastLight rain (total 4mm), mostly falling on Sat afternoon. Warm (max 33°C on Sat morning, min 26°C on Sat night). Winds increasing (calm on Sat morning, fresh winds from the WSW by Sun night). | Days 5-7 Weather SummarySome drizzle, heaviest during Thu afternoon. Warm (max 35°C on Tue afternoon, min 27°C on Mon night). Mainly strong winds. | ||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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 4 | SE 7 | SE 8 | SE 4 | SE 8 | SE 8 | SE 8 | SE 8 | SSE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 10 | SE 9 | SE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 82 | 40 | 21 | 89 | 48 | 21 | 84 | 33 | 20 | 98 | 53 | 62 | 112 | 67 | 85 | 99 | 49 | 70 | 51 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | on | cross-off | cross-off | on | cross-off | cross-off | on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off |
High Tide | 2:07AM0.55m | 1:55PM0.43m | 3:42AM0.56m | 3:58PM0.42m | 5:06AM0.59m | 5:35PM0.46m | 6:07AM0.63m | 6:36PM0.50m | 6:55AM0.67m | 7:23PM0.55m | 7:36AM0.69m | 8:04PM0.59m | |||||||
Low Tide | 8:41AM0.29m | 8:33PM0.21m | 10:23AM0.27m | 10:04PM0.21m | 11:38AM0.22m | 11:18PM0.19m | 12:33PM0.17m | 00:18AM0.16m | 1:18PM0.13m | 1:09AM0.14m | 1:57PM0.10m | 1:54AM0.13m | |||||||
 |  |  |  |  | |  | | | | | | | | | | | | | |
 | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — |
 | — | — | 6:10 | — | — | 6:09 | — | — | 6:09 | — | — | 6:08 | — | — | 6:08 | — | — | 6:07 | — |
mm | — | — | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 29 | 33 | 30 | 30 | 33 | 31 | 30 | 33 | 32 | 29 | 32 | 35 | 29 | 34 | 35 | 29 | 33 | 35 | 29 |
Feels °C | 33 | 36 | 31 | 32 | 33 | 32 | 31 | 33 | 35 | 29 | 31 | 33 | 28 | 32 | 35 | 30 | 33 | 35 | 28 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SSE 11 | SE 7 | SE 8 | S 10 | SE 8 | SE 8 | SE 8 | SE 8 | SSE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 10 | SE 9 | SE 9 |
| kJ | 82 | 40 | 12 | 89 | 48 | 8 | 84 | 33 | 20 | 98 | 53 | 62 | 112 | 67 | 85 | 99 | 49 | 70 | 51 |
Swell 2 Height (m) Direction Period (s) | S 12 | WSW 3 | S 16 | S 11 | W 3 | — | NW 6 | S 19 | SSE 9 | S 17 | SE 8 | — | SE 18 | NW 4 | SE 16 | SE 16 | SE 9 | SSE 14 | SE 4 |
| kJ | 3 | 1 | 5 | 9 | 1 | — | 1 | 7 | 8 | 6 | 3 | — | 12 | 1 | 10 | 9 | 21 | 21 | 3 |
Swell 3 Height (m) Direction Period (s) | S 17 | S 11 | — | — | S 10 | S 15 | S 21 | S 19 | S 18 | — | — | S 18 | S 19 | SE 16 | SSE 16 | SE 15 | WSW 4 | — | SSE 14 |
| kJ | 5 | 9 | — | — | 8 | 4 | 9 | 29 | 6 | — | — | 6 | 29 | 11 | 50 | 9 | 2 | — | 20 |
Wind waves Height (m) Direction Period (s) | — | — | SE 4 | WSW 3 | SW 3 | SE 4 | W 3 | SW 3 | ESE 3 | W 3 | SW 3 | SE 3 | WSW 4 | WSW 4 | SE 4 | W 4 | W 3 | SE 4 | WSW 3 |
| kJ | — | — | 21 | 2 | 2 | 21 | 5 | 3 | 6 | 7 | 3 | 5 | 13 | 5 | 6 | 17 | 1 | 8 | 9 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 299 | 303 | 303 | 299 | 410 | 956 | 194 | 410 | 956 | 470 | 467 | 797 | 194 | 194 | 1059 | 343 | 194 | 484 | 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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