Surf Forecasts:
Trincomalee surf forecast from 18 Aug 2026:
- Most powerful swell: Sunday 23 Aug, 2AM (local time) - 2ft (0.6m), 9s period, SSE swell with 50 kJ wave energy.
Best Forecast Surf Conditions for Trincomalee this week:
The most powerful waves expected at Trincomalee in the next 16 days are 0.6m 9s and forecast to arrive on Sunday (Aug 23) 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 Saturday (Aug 22) at 5AM.
| Wave Type | Time (+0530) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Sun 23rd Aug) | 2ft (0.6m) 9s |
Table - best surf conditions forecast for Trincomalee over the next 16 days.
The Lowdown
Alright folks, Rusty here again, switching to feet and inches.
The water temp is 83°, which is about normal for the season.
The 16-day picture is a flat one. The swell is tiny and weak across the board. The first recommendation is for Trincomalee, a sheltered point that rarely breaks and is suited to beginners. The closest thing to a highlight is Wednesday the 2nd of September. That morning brings a 2ft swell from the SE with a period of 9 seconds, and combined energy of 61 (moderate). The wind is cross-off from the WSW at 15 mph, keeping it clean. The afternoon has a light offshore from the NW at 6 mph, making the surface glassy. But 2ft is still very small, and the period is short, so it’s not going to be a day to remember.
The rest of the stretch is dominated by tiny surf. Swell heights are mostly between 0.7ft and 2ft, with periods that are short (8 seconds) or occasionally longer (up to 16 seconds), but the energy is always low. The wind is mostly cross-off or offshore, so conditions are clean, but there’s no punch. The second week sees a slight uptick, with energy peaking at 68 on the morning of the 29th of August, but the swell is still only 2ft. For a break that rarely breaks, this kind of flat run is normal.
If you’re set on going out, the Wednesday 2nd of September morning is your best bet, but it’s a flat day for all intents and purposes. Beginners will be safe, but there’s nothing to ride.
Signing off, Rusty.
Short Range ForecastMostly dry. Warm (max 35°C on Tue afternoon, min 26°C on Wed night). Mainly strong winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 35°C on Fri afternoon, min 26°C on Fri night). Winds increasing (light winds from the W on Fri afternoon, strong winds from the WSW by Sun night). | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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 | S 18 | S 16 | SSE 8 | SSE 8 | SSE 8 | S 13 | SSE 8 | SSE 11 | SSE 11 | SSE 9 | SE 8 | SSE 9 | SSE 8 | SE 8 | S 18 | SSE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 24 | 23 | 21 | 21 | 13 | 28 | 21 | 7 | 7 | 6 | 4 | 14 | 13 | 12 | 50 | 18 | 16 | 45 | 17 | 25 | 13 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | 6:11AM0.56m | 6:16PM0.41m | ||||||||
Low Tide | 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 | 1:04PM0.26m | 11:52PM0.20m | ||||||||
 | |  | |  | | | |  | | | | | | | | | | | | | |
 | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — |
 | — | 6:20 | — | — | 6:20 | — | — | 6:19 | — | — | 6:19 | — | — | 6:17 | — | — | 6:17 | — | — | 6:16 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 33 | 35 | 29 | 33 | 35 | 28 | 33 | 34 | 28 | 33 | 35 | 28 | 33 | 35 | 29 | 33 | 34 | 28 | 33 | 34 | 28 |
Feels °C | 32 | 35 | 28 | 33 | 35 | 27 | 32 | 34 | 26 | 32 | 34 | 27 | 32 | 33 | 28 | 30 | 31 | 26 | 31 | 31 | 26 |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SSE 8 | SSE 8 | SSE 8 | SSE 4 | SSE 8 | SSE 5 | SSE 8 | SSE 11 | SSE 11 | SSE 9 | SE 8 | SSE 9 | SSE 8 | SE 8 | SE 8 | SSE 8 |
| kJ | 24 | 23 | 21 | 21 | 13 | 28 | 7 | 7 | 2 | 6 | 2 | 14 | 13 | 12 | 50 | 18 | 16 | 45 | 17 | 18 | 13 |
Swell 2 Height (m) Direction Period (s) | SSE 5 | SSE 5 | SE 4 | W 4 | SE 5 | SSE 4 | SSE 6 | SSE 5 | SSE 8 | SE 5 | SE 8 | SSE 4 | SSE 5 | SSE 5 | S 16 | SE 11 | SE 4 | S 20 | S 18 | S 18 | SSE 4 |
| kJ | 3 | 2 | 3 | 2 | 4 | 2 | 3 | 3 | 7 | 1 | 2 | 2 | 3 | 2 | 5 | 4 | 2 | 7 | 6 | 6 | 2 |
Swell 3 Height (m) Direction Period (s) | NW 5 | — | S 19 | SSE 5 | S 20 | S 18 | S 16 | S 16 | SE 8 | S 14 | S 13 | S 20 | S 18 | S 18 | S 19 | — | S 14 | S 14 | S 13 | S 18 | — |
| kJ | 1 | — | 7 | 2 | 8 | 26 | 21 | 5 | 2 | 4 | 4 | 7 | 7 | 6 | 7 | — | 4 | 14 | 4 | 25 | — |
Wind waves Height (m) Direction Period (s) | WSW 4 | — | WSW 3 | SW 4 | — | WSW 4 | WSW 4 | — | WSW 4 | WSW 4 | — | WSW 4 | WSW 4 | WSW 2 | WSW 4 | WSW 4 | WSW 3 | W 4 | WSW 4 | W 3 | WSW 4 |
| kJ | 8 | — | 8 | 2 | — | 21 | 5 | — | 13 | 5 | — | 21 | 5 | 1 | 21 | 8 | 1 | 23 | 11 | 5 | 19 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 194 | 907 | 194 | 194 | 1119 | 194 | 194 | 194 | 194 | 194 | 907 | 343 | 194 | 343 | 194 | 194 | 797 | 194 | 194 | 797 | 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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