
Surf Forecasts:
Inside Reef (Hikkaduwa) surf forecast from 7 Aug 2026:
- Most powerful swell: Friday 7 Aug, 11PM (local time) - 6ft (1.9m), 17s period, S swell with 2,117 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 1.9m 17s and forecast to arrive on Friday (Aug 07) at 11PM. 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 | 11PM (Fri 7th Aug) | 6ft (1.9m) 17s |
Table - best surf conditions forecast for Inside Reef (Hikkaduwa) over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down the Hikkaduwa forecast.
Honestly, the next stretch is looking pretty rough. We’ve got westerly winds blowing cross-on or onshore most days, and a lot of storm risk. The water temp is 28°, right on the mark for this time of year.
The first real pulse of energy doesn’t show up until the morning of Monday, 18th August. *Inside Reef (Hikkaduwa)* will see a 7ft swell from the SSW, with a long period of 18 seconds. That’s serious groundswell – the combined energy hits 3462, which is strong. The wind is onshore from the west at 12 mph, so it’s not perfect, but it’s listed as “on” so it might be a bit cleaner. This is a reef break, so that long period swell will wrap in nicely, but it’s an advanced wave only.
Tuesday, 19th August, morning is similar – 8ft from the SSW, 17 seconds, and combined energy of 3454. Still strong, still westerly wind, still cross-on, so probably a bit lumpy.
The standout is Thursday, 20th August. The morning brings a 8ft swell from the SSW, with an 18-second period. The combined energy is a massive 5204 – that’s very strong. The wind is onshore from the WSW at 12 mph, but it’s listed as “on” rather than cross-on, which could be the cleanest we get all period. That’s a heavy, powerful groundswell on a reef. Only for experts.
After that, the swell drops off into the 21st and 22nd, with the wind still a problem. The 22nd Saturday morning drops to 5ft from the S, 14 seconds, with a cross-on westerly breeze. Not great.
So, bottom line: the first week is mostly a bust. There’s a long gap of poor surf before it fires up. The best window is Thursday, 20th August, for the big groundswell at Inside Reef – but it’s a serious wave. If you’re an expert and you can wait, that’s your day.
Rusty.
Short Range ForecastHeavy rain (total 42mm), heaviest during Sat night. Warm (max 28°C on Sun morning, min 26°C on Fri morning). Mainly fresh winds. | Days 4-6 Weather SummaryHeavy rain (total 48mm), heaviest during Tue night. Warm (max 27°C on Mon morning, min 26°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | |||||||||||||||
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 14 | S 14 | S 17 | S 16 | SSW 15 | S 16 | S 17 | S 17 | S 16 | S 15 | SSW 22 | S 21 | S 19 | S 18 | S 18 | SSW 16 | S 16 | SSE 11 | S 11 | SSE 11 | SSE 12 |
Wave Graph | |||||||||||||||||||||
931 | 918 | 957 | 1855 | 639 | 1591 | 454 | 1722 | 620 | 636 | 593 | 436 | 1277 | 777 | 871 | 661 | 1115 | 356 | 351 | 363 | 425 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | cross-on | cross-on | on |
High Tide | 5:52PM0.34m | 10:00AM0.46m | 10:11PM0.27m | 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 | ||||||||
Low Tide | 2:22PM0.32m | 00:59AM0.18m | 7:37PM0.26m | 3:56AM0.23m | 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 | ||||||||
6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | |
— | 6:25 | — | — | 6:25 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:23 | — | — | 6:23 | — | |
mm | 4 | 3 | 9 | 5 | 6 | 8 | 2 | 1 | 4 | 3 | 4 | 6 | 2 | 5 | 11 | 5 | 4 | 8 | 3 | 3 | 7 |
Temp °C | 27 | 27 | 26 | 26 | 27 | 26 | 28 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 |
Feels °C | 27 | 27 | 26 | 26 | 27 | 26 | 29 | 27 | 28 | 28 | 27 | 28 | 29 | 28 | 28 | 29 | 28 | 28 | 29 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 13 | S 16 | SSW 15 | S 16 | S 11 | S 17 | S 12 | S 15 | S 11 | S 11 | S 19 | S 18 | S 11 | SSW 16 | S 16 | SSE 11 | S 11 | SSE 11 | SSE 12 |
931 | 918 | 546 | 1855 | 639 | 1591 | 275 | 1722 | 383 | 636 | 319 | 332 | 1277 | 777 | 418 | 661 | 1115 | 356 | 351 | 363 | 425 | |
Swell 2 Height (m) Direction Period (s) | SSW 18 | S 18 | S 17 | S 11 | S 11 | S 11 | SSW 14 | SSW 26 | S 16 | S 10 | S 14 | S 13 | S 13 | S 12 | S 18 | S 10 | WNW 9 | SSW 15 | SSW 15 | SSW 15 | S 21 |
558 | 635 | 957 | 279 | 281 | 272 | 331 | 66 | 620 | 313 | 593 | 366 | 350 | 235 | 871 | 204 | 129 | 191 | 142 | 146 | 218 | |
Swell 3 Height (m) Direction Period (s) | S 18 | — | — | — | S 18 | — | S 17 | SSW 26 | SW 24 | SSW 23 | SSW 22 | S 21 | S 11 | SW 18 | SSW 13 | S 12 | SW 12 | SSE 15 | S 6 | WNW 10 | SW 14 |
431 | — | — | — | 399 | — | 454 | 66 | 143 | 471 | 526 | 436 | 247 | 319 | 93 | 177 | 36 | 71 | 20 | 20 | 47 | |
Wind waves Height (m) Direction Period (s) | W 7 | W 7 | W 8 | W 6 | W 6 | W 7 | W 7 | W 6 | W 6 | W 7 | W 7 | W 7 | W 6 | W 6 | W 7 | W 7 | W 6 | W 6 | W 7 | W 7 | W 7 |
396 | 431 | 399 | 263 | 284 | 367 | 303 | 261 | 200 | 211 | 173 | 148 | 153 | 175 | 193 | 226 | 112 | 159 | 217 | 198 | 198 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 205 | 192 | 211 | 205 | 211 | 211 | 205 | 210 | 211 | 210 | 211 | 211 | 210 | 338 | 58 | 646 | 338 | 211 | 210 | 338 | 211 |
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.











