
Surf Forecasts:
Main Reef (Hikkaduwa) surf forecast from 10 Aug 2026:
- Most powerful swell: Monday 17 Aug, 11PM (local time) - 3.5ft (1.1m), 20s period, SSW swell with 961 kJ wave energy.
Best Forecast Surf Conditions for Main Reef (Hikkaduwa) this week:
The most powerful waves expected at Main Reef (Hikkaduwa) in the next 16 days are 1.1m 20s and forecast to arrive on Monday (Aug 17) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (+0530) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Mon 17th Aug) | 3.5ft (1.1m) 20s |
Table - best surf conditions forecast for Main Reef (Hikkaduwa) over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ve got to be straight with you – the next 16 days at Main Reef in Hikkaduwa are a bit of a tough pill to swallow. We’re staring down a long stretch of onshore and cross-onshore winds that are just going to wreck any chance of clean surf. The pattern is pretty grim, with a few little pulses of energy but nothing that lines up with good conditions.
Right now, from Monday the 10th, we’ve got a swell coming in at 5 ft from the SSW, but it’s wrapped up with a risk of thunderstorms and a 9 mph onshore wind from the west. The combined wave energy is sitting at 1608 (moderate to strong energy) but the quality is shot. It’s really just a messy, choppy affair. That sets the tone for the next several days – poor surf conditions with the same westerly winds pushing in, and the swell fluctuating between 3 ft and 6 ft. There’s a bit of long-period groundswell in there on the 11th and 12th (19 seconds and 16 seconds) but with the wind on it, the reef setup won’t be doing you any favours. It’s all just sloppy.
Things get a little bigger around the 15th and 16th, with swell hitting 6 ft and 5 ft, but the wind stays cross-onshore from the WNW at 12-16 mph. The combined wave energy jumps to 631 and 709 (moderate) but the wave comment is poor across the board. Honestly, for a beach-and-reef setup like this, the wind is just nasty, and it looks more like a kite-surfing window than a paddling one. Water temp is about 82°F, which is pretty average for the time of year, so nothing unusual there.
The only time I see a real surge in energy is on Tuesday the 18th into Wednesday the 19th. We’ve got swell heights of 6 ft from the SSW with a period of 17-19 seconds – proper groundswell – and combined wave energy hitting 3185 (strong to very strong). But the wind is still cross-onshore from the WNW at 12 mph. The conditions are labelled marginal at best, with a score of 2 out of 10 for Tuesday afternoon. That’s the best individual window, but it’s not clean. That big, long-period swell is best suited for a reef setup like Main Reef, and with these winds, it’s a real shame.
After that, through the 20th to the 25th, it’s more of the same: onshore and cross-onshore winds, swell between 4 ft and 6 ft, and poor conditions. Nothing worth getting excited about.
So, the standout here? Honestly, there isn’t a proper standout session. If I had to pick one, it’d be Tuesday the 18th in the afternoon – that’s when you get the most size and energy (6 ft, SSW, 19 seconds, 3160 combined energy) but you’ll be dealing with choppy, cross-onshore wind. It’s a shame because the swell direction (SSW) is a solid match for Main Reef’s optimum SW direction. But the wind just kills it. Crowds are often here, and on a day like that, expect a few locals out, but it won’t be pretty.
We’ve got a long, poor run through the second week with Thursday the 20th offering a sliver of better wind (onshore instead of cross-onshore) with 5 ft to 6 ft SSW swell, but still moderate wind at 12 mph. The quality is still marginal.
That’s the picture. It’s a rough stretch, but that’s how it goes sometimes – forecasts can change, and it tends not to stay this poor for long. Keep an eye on it.
Rusty.
Short Range ForecastHeavy rain (total 44mm), heaviest during Mon night. Warm (max 27°C on Mon afternoon, min 26°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 19mm), heaviest on Thu night. Warm (max 27°C on Thu afternoon, min 26°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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) | SSW 14 | SSW 21 | SSW 19 | S 19 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | W 9 | S 11 | S 10 | W 8 | S 11 | W 8 | W 7 | W 7 | W 7 | W 7 | W 9 | W 10 |
Wave Graph | ||||||||||||||||||||
862 | 666 | 856 | 562 | 655 | 487 | 402 | 242 | 198 | 184 | 135 | 105 | 198 | 377 | 303 | 290 | 152 | 131 | 332 | 320 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 1:33AM0.42m | 1:41PM0.61m | 2:07AM0.49m | 2:12PM0.64m | 2:39AM0.56m | 2:41PM0.66m | 3:10AM0.60m | 3:08PM0.65m | 3:39AM0.63m | 3:34PM0.64m | 4:08AM0.64m | 3:59PM0.61m | 4:35AM0.63m | |||||||
Low Tide | 7:49PM0.15m | 7:11AM0.15m | 8:12PM0.09m | 7:54AM0.10m | 8:37PM0.04m | 8:31AM0.08m | 9:01PM0.00m | 9:04AM0.06m | 9:26PM-0.02m | 9:36AM0.07m | 9:50PM-0.03m | 10:05AM0.09m | 10:14PM-0.01m | |||||||
— | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | |
6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:23 | — | — | 6:23 | — | — | 6:23 | — | — | 6:22 | — | |
mm | 4 | 9 | 3 | 3 | 10 | 3 | 2 | 7 | 3 | 1 | 6 | 3 | 2 | 5 | 1 | — | — | 1 | 2 | 2 |
Temp °C | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 |
Feels °C | 29 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 28 | 30 | 28 | 28 | 28 | 28 | 27 | 29 | 29 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SSW 13 | SSW 12 | W 10 | W 10 | WSW 9 | W 9 | W 9 | W 9 | W 8 | W 8 | S 11 | W 8 | S 11 | W 7 | W 7 | S 11 | W 6 | W 6 |
862 | 651 | 499 | 386 | 221 | 214 | 254 | 126 | 177 | 150 | 105 | 105 | 198 | 305 | 143 | 211 | 128 | 108 | 113 | 80 | |
Swell 2 Height (m) Direction Period (s) | W 7 | W 9 | SSW 19 | W 9 | S 12 | S 12 | SSW 11 | S 10 | S 11 | S 11 | S 10 | S 10 | SW 16 | S 11 | SW 15 | S 10 | S 11 | W 9 | S 11 | S 11 |
99 | 159 | 856 | 205 | 289 | 336 | 217 | 104 | 198 | 184 | 135 | 88 | 159 | 188 | 137 | 69 | 146 | 61 | 112 | 108 | |
Swell 3 Height (m) Direction Period (s) | SSW 22 | SSW 21 | S 13 | S 19 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SW 15 | SW 15 | SW 17 | S 12 | S 19 | SW 15 | S 16 | SW 15 | W 10 | SW 14 | SW 14 | SW 13 |
412 | 666 | 350 | 562 | 655 | 487 | 402 | 242 | 134 | 141 | 107 | 96 | 112 | 141 | 48 | 139 | 47 | 102 | 72 | 62 | |
Wind waves Height (m) Direction Period (s) | W 9 | — | W 9 | W 6 | W 6 | W 10 | — | — | — | — | — | — | W 8 | W 8 | W 7 | W 7 | W 7 | W 7 | W 9 | W 10 |
235 | — | 196 | 50 | 30 | 314 | — | — | — | — | — | — | 161 | 377 | 303 | 290 | 152 | 131 | 332 | 320 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 858 | 213 | 642 | 328 | 328 | 715 | 29 | 29 | 212 | 212 | 212 | 207 | 212 | 212 | 207 | 29 | 174 | 207 | 212 | 174 |
Best forecast wave conditions in West 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)
Latest Updates
Information about the Main Reef (Hikkaduwa) Surf forecast
The above surf forecast table for Main Reef (Hikkaduwa) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Main Reef (Hikkaduwa) can be found by selecting the local surf guide option on the grey menu. Our Main Reef (Hikkaduwa) 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 (Main Reef (Hikkaduwa)) 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 Main Reef (Hikkaduwa) 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.
Main Reef (Hikkaduwa) is 4 km (2 miles) from the city of Ambalangoda. If you plan a holiday in West Sri Lanka, look for hotels and other accommodation in Ambalangoda. Ambalangoda has rooms for a wide range of budgets as well as car hire and transport links.











