
Surf Forecasts:
Inside Reef (Hikkaduwa) surf forecast from 10 Sep 2026:
- Most powerful swell: Saturday 12 Sep, 2PM (local time) - 7ft (2.1m), 17s period, SSW swell with 2,517 kJ wave energy.
Best Forecast Surf Conditions for Inside Reef (Hikkaduwa) this week:
The most powerful waves expected at Inside Reef (Hikkaduwa) in the next 16 days are 2.1m 17s and forecast to arrive on Saturday (Sep 12) at 2PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (+0530) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Sat 12th Sep) | 7ft (2.1m) 17s |
Table - best surf conditions forecast for Inside Reef (Hikkaduwa) over the next 16 days.
The Lowdown
Right off the bat, it's a bit of a grind out at Inside Reef (Hikkaduwa). There’s no clean, green light session on the horizon for a while—the forecast is looking at a run of onshore and cross-onshore winds, with a lot of messy, lumpy, and choppy conditions. The swell energy is there, but it’s not coming together with the wind to give us anything worth paddling out for. The first real chance we get is Friday the 11th, but even that's more of a look-see than a go-time. The water temp is running about average for this time of year, so a normal spring suit is all you need.
The Friday morning session on the 11th sees some waist to chest high swell, 5ft, from the SSW with a solid 15-second period. That’s a south-west groundswell, and the energy reading is moderate at 1945. But the wind is howling from the WSW at 9 mph and it’s directly on. It’s not big, but it’s not clean, and the whole day is basically a write-off with thunderstorm risk. Not the one to set the alarm for.
Saturday the 12th brings a little more size—7ft from the SSW with a 17-second period. That's proper groundswell energy, with readings of 2731 and 2708, so there’s some push behind it. But the westerly wind jumps up to 9-12 mph onshore. It’s the same story: a bit of size, but the surface is going to be poor. The period is long enough to make things lined up at this reef, but the wind kills the potential.
Sunday the 13th, the swell drops back to 5ft to 6ft. The wind goes cross-on in the afternoon, and we’re looking at a moderate cross-onshore and choppy. Not good. By Monday the 14th it’s down to 4ft to 4ft from the SSW, and the period jumps to 17-18 seconds, but you have a solid 12-15 mph cross-onshore wind making it a mess. Tuesday the 15th has fresh cross-onshore wind at 18 mph, lumpy and rough, and the swell is just average. Wednesday and Thursday are more of the same—onshore winds, choppy surf, poor quality.
Honestly, the first week of this forecast is a total battle. There’s no standout session. There are gaps where you’d just be fighting the wind and the chop. The swell direction from the SSW is hitting the optimum SW direction for this reef, but the wind is just ruining any chance of it coming together.
Moving into the back half of the outlook, things don't look much better. The 19th and 20th see a bit more size—6ft to 6ft from the SSW, with moderate energy readings around 1613 and 1774. But it’s the same onshore westerly wind at 12-15 mph. It’s surfable but not clean, and the conditions are going to be rough.
Then we get to the 22nd, where the swell comes from the west at 7ft to 8ft with a short, weak 8-second period. This is junk. That period is less than 8 seconds, meaning it’s wind swell with no push, and that size is getting up there for most guys. If it’s a beach break, it’s going to be closing out. With the fresh onshore breeze, this setup looks way more interesting for a kite surfer than a paddle surfer. Not worth it.
By the 24th, there's a huge jump in period—22 to 23 seconds—and a big jump in energy, with readings of 2569 and 3304. This is very long period groundswell. But the size is only 5ft. It’s a tease. Long period and a reef like this can be a great combination, but the wind is still blowing 15-18 mph onshore, and it’s not going to be clean. This might be the most interesting wave of the whole run, but you would have to be a glutton for punishment to paddle out into that wind. It’s a promise for a better day, though. The 25th keeps that energy up—3299 and 2628—with 6ft SSW swell, but again, the fresh westerly wind just messes it up.
So, what have we got? Not a lot. The only real window where things might align is around the 24th and 25th—over a week out, so take it with a grain of salt—when that very long period SSW groundswell rolls in. If the wind eases even a little, Inside Reef could be the standout. It's a long-range promise, so not worth betting the house on, but it’s the only one with any real potential. Otherwise, this is a stretch of poor, onshore, choppy surf. The spot stays fairly consistent for swell, but the winds are just killing it. It tends not to stay this bad for long, so keep an eye on it.
Rusty.
Short Range ForecastHeavy rain (total 38mm), heaviest during Fri night. Warm (max 29°C on Fri morning, min 26°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 123mm), heaviest during Wed afternoon. Warm (max 28°C on Mon afternoon, min 24°C on Wed afternoon). Mainly fresh winds. | ||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
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 16 | SSW 15 | SSW 14 | SSW 19 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 15 | SSW 15 | SSW 18 | SSW 17 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 18 | SSW 16 |
Wave Graph | |||||||||||||||||||
1150 | 996 | 845 | 1719 | 2404 | 2488 | 2048 | 1415 | 1125 | 911 | 790 | 847 | 988 | 1028 | 911 | 874 | 613 | 705 | 590 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | cross-on | cross-on |
High Tide | 2:16AM0.65m | 2:15PM0.66m | 2:42AM0.69m | 2:41PM0.66m | 3:08AM0.71m | 3:06PM0.64m | 3:33AM0.70m | 3:30PM0.61m | 3:58AM0.67m | 3:53PM0.56m | 4:21AM0.62m | 4:12PM0.51m | 4:44AM0.57m | ||||||
Low Tide | 8:18AM0.08m | 8:28PM0.00m | 8:46AM0.07m | 8:49PM-0.01m | 9:12AM0.07m | 9:10PM-0.02m | 9:36AM0.07m | 9:31PM-0.01m | 9:59AM0.09m | 9:52PM0.02m | 10:22AM0.11m | 10:12PM0.05m | |||||||
— | 6:01 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | |
— | — | 6:10 | — | — | 6:10 | — | — | 6:09 | — | — | 6:09 | — | — | 6:08 | — | — | 6:08 | — | |
mm | 1 | — | 2 | 13 | 5 | 2 | 7 | 4 | 4 | 11 | 4 | 3 | 11 | 10 | 16 | 22 | 16 | 30 | 18 |
Temp °C | 27 | 29 | 29 | 27 | 28 | 28 | 27 | 27 | 28 | 27 | 27 | 28 | 27 | 26 | 25 | 26 | 26 | 24 | 25 |
Feels °C | 30 | 31 | 30 | 29 | 30 | 29 | 30 | 28 | 29 | 29 | 29 | 29 | 28 | 27 | 24 | 26 | 25 | 24 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 14 | SSW 16 | SSW 17 | SSW 17 | SSW 17 | SSW 16 | SSW 15 | SSW 15 | SSW 18 | SSW 17 | SSW 15 | SW 8 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 |
1150 | 996 | 845 | 1199 | 2404 | 2488 | 2048 | 1415 | 1125 | 911 | 790 | 847 | 988 | 371 | 911 | 874 | 613 | 563 | 468 | |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SW 21 | SSW 21 | SSW 19 | WSW 8 | SSE 9 | WSW 7 | SSE 9 | SSE 9 | S 18 | SSW 13 | SSW 14 | SSW 10 | SSW 15 | SW 21 | SW 20 | W 6 | SSW 18 | SSW 16 |
103 | 898 | 573 | 1719 | 199 | 73 | 156 | 65 | 52 | 248 | 368 | 561 | 77 | 1028 | 117 | 388 | 102 | 705 | 590 | |
Swell 3 Height (m) Direction Period (s) | SW 24 | WNW 6 | SE 9 | SE 10 | SSE 9 | — | SSE 9 | — | SSW 20 | SE 9 | SE 9 | SSE 9 | SE 9 | SSE 9 | SSE 9 | SE 9 | SSW 18 | SE 8 | S 7 |
273 | 51 | 77 | 96 | 94 | — | 70 | — | 78 | 39 | 36 | 29 | 20 | 8 | 8 | 3 | 596 | 3 | 57 | |
Wind waves Height (m) Direction Period (s) | WNW 6 | — | WNW 6 | WSW 6 | WNW 6 | WSW 7 | — | WSW 7 | WSW 7 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | WNW 7 | WSW 7 | W 6 | — | W 6 | W 6 |
56 | — | 50 | 118 | 34 | 147 | — | 128 | 192 | 256 | 412 | 456 | 464 | 145 | 382 | 157 | — | 104 | 74 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 719 | 976 | 1335 | 1220 | 1519 | 1519 | 58 | 1065 | 1519 | 39 | 205 | 24 | 24 | 211 | 739 | 172 | 172 | 859 | 210 |
Best forecast wave conditions in West Sri Lanka | |||||||||||||||||||
Best forecast wave conditions in Sri Lanka | |||||||||||||||||||
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Information about the Inside Reef (Hikkaduwa) Surf forecast
The above surf forecast table for Inside 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 Inside Reef (Hikkaduwa) can be found by selecting the local surf guide option on the grey menu. Our Inside 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 (Inside 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 Inside 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.
Inside Reef (Hikkaduwa) is 9 km (6 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.










