Surf Forecasts:
Inside Reef (Hikkaduwa) surf forecast from 9 Aug 2026:
- Most powerful swell: Sunday 9 Aug, 5PM (local time) - 6ft (1.8m), 17s period, S swell with 1,947 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 1.8m 17s and forecast to arrive on Sunday (Aug 09) at 5PM. 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 | 5PM (Sun 9th Aug) | 6ft (1.8m) 17s |
Table - best surf conditions forecast for Inside Reef (Hikkaduwa) over the next 16 days.
The Lowdown
Alright, Rusty here again, but I'll switch to feet and inches for you.
It’s a tough run ahead for the Hikkaduwa area over this 16-day stretch. There’s a long quiet spell before we get anything real, and even then, it's just one standout day.
From Sunday the 9th right through to about Wednesday the 20th of August, it’s mostly a frustrating mix of onshore and cross-onshore winds, choppy surface, and marginal surf. There’s some size, like Monday the 18th with 7ft swell from the SSW, but that wind just kills it. Water temp is sitting about average, around 82°F, so nothing weird there.
The one to get excited about, and I mean the *only* one, is the morning of Friday, the 21st of August, at Inside Reef (Hikkaduwa). That morning we get a solid 8ft of swell out of the SSW with a super long 19-second period—that’s proper groundswell ripping across the ocean. The combined energy is reading a massive 5232, so there’s plenty of grunt. The swell direction lines up sweet for this reef. The wind is light from the W, only about 9 mph, and while it’s cross-on, at that speed the surface should stay clean. This is for advanced surfers only—8ft gets into expert territory. The break is fairly consistent, but expect company as crowds are sometimes an issue. It’s a long way off, so treat it as a hopeful one, not a solid bet.
Before that, it’s a slog. From the 9th through the 20th, the wind is stuck onshore or cross-onshore from the W or WNW, blowing at 12 mph or more, keeping the surf messy. There’s a brief flicker Thursday the 20th afternoon with 7ft SSW swell and lighter 9 mph onshore wind, but it’s still only marginal.
After that Friday peak, it drops. Saturday the 22nd holds 7ft but the cross-onshore wind is back, and by Sunday and Monday the 23rd and 24th, we’re down to 5ft to 6ft of S swell with fresh winds and no quality.
Bottom line: if you’re an experienced surfer, mark your calendar for Friday morning, the 21st, at Inside Reef. The rest? A good time to fix your dings.
Rusty.
Short Range ForecastHeavy rain (total 36mm), heaviest during Sun morning. Warm (max 27°C on Sun morning, min 26°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 32mm), heaviest during Thu night. Warm (max 27°C on Wed morning, min 26°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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) | S 11 | S 17 | S 16 | S 15 | S 14 | S 21 | S 19 | S 18 | S 18 | W 10 | S 11 | S 11 | SSE 11 | WNW 10 | SSE 12 | SSE 11 | W 7 | SSE 11 | W 7 | SSE 11 | SSE 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 372 | 1947 | 620 | 636 | 1143 | 436 | 1277 | 777 | 871 | 371 | 451 | 338 | 343 | 276 | 343 | 308 | 303 | 308 | 330 | 315 | 249 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | on | on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 12:05PM0.50m | 00:44AM0.33m | 12:59PM0.56m | 1:28AM0.41m | 1:37PM0.61m | 2:03AM0.49m | 2:09PM0.65m | 2:36AM0.57m | 2:39PM0.67m | 3:07AM0.62m | 3:07PM0.68m | 3:38AM0.66m | 3:34PM0.67m | 4:08AM0.66m | |||||||
Low Tide | 7:27PM0.20m | 6:10AM0.19m | 7:48PM0.14m | 7:09AM0.14m | 8:12PM0.09m | 7:53AM0.10m | 8:36PM0.05m | 8:29AM0.09m | 9:00PM0.02m | 9:03AM0.08m | 9:24PM0.00m | 9:33AM0.09m | 9:48PM-0.00m | ||||||||
 | |  | | | | | | | | | | | | | | | |  |  |  | |
 | 6:03 | — | — | 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 | 3 | 2 | 5 | 4 | 4 | 4 | 3 | 3 | 8 | 4 | 3 | 6 | 2 | 4 | 7 | 2 | 1 | 3 | — | — | 1 |
Temp °C | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 |
Feels °C | 28 | 28 | 28 | 29 | 28 | 29 | 29 | 28 | 28 | 30 | 28 | 29 | 30 | 28 | 29 | 29 | 27 | 28 | 28 | 27 | 29 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | S 17 | S 12 | S 11 | S 14 | S 11 | S 19 | S 11 | S 18 | W 10 | S 11 | S 11 | SSE 11 | SSE 10 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 |
| kJ | 202 | 1947 | 517 | 375 | 1143 | 332 | 1277 | 351 | 871 | 371 | 451 | 338 | 343 | 231 | 343 | 308 | 303 | 308 | 297 | 292 | 249 |
Swell 2 Height (m) Direction Period (s) | S 11 | SSW 26 | S 16 | S 15 | SSW 22 | S 13 | S 12 | S 18 | SSE 11 | S 12 | W 10 | W 9 | SSW 15 | SSW 15 | SW 18 | SW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SW 14 |
| kJ | 372 | 66 | 620 | 636 | 526 | 366 | 330 | 777 | 217 | 220 | 221 | 194 | 142 | 146 | 78 | 261 | 171 | 196 | 146 | 146 | 100 |
Swell 3 Height (m) Direction Period (s) | SSW 14 | S 18 | SW 24 | SSW 23 | SSW 22 | S 21 | S 13 | SSW 12 | S 11 | SSE 10 | SSW 16 | SSW 15 | S 5 | W 9 | SW 14 | S 19 | S 19 | S 18 | WNW 10 | SSW 15 | S 26 |
| kJ | 331 | 307 | 143 | 471 | 485 | 436 | 350 | 205 | 199 | 163 | 421 | 191 | 14 | 55 | 47 | 190 | 178 | 156 | 36 | 172 | 13 |
Wind waves Height (m) Direction Period (s) | — | WNW 8 | W 8 | W 8 | W 6 | W 9 | W 6 | W 6 | W 10 | — | SSW 6 | — | W 9 | WNW 10 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 6 |
| kJ | — | 197 | 195 | 168 | 148 | 246 | 64 | 60 | 279 | — | 47 | — | 199 | 276 | 263 | 262 | 277 | 226 | 330 | 315 | 182 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 205 | 210 | 211 | 210 | 338 | 58 | 211 | 338 | 211 | 646 | 738 | 24 | 211 | 859 | 211 | 205 | 210 | 172 | 208 | 859 | 172 |
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.
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