Surf Forecasts:
Inside Reef (Hikkaduwa) surf forecast from 15 Aug 2026:
- Most powerful swell: Tuesday 18 Aug, 8AM (local time) - 7ft (2.2m), 19s period, SSW swell with 3,650 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 2.2m 19s and forecast to arrive on Tuesday (Aug 18) at 8AM. 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 | 8AM (Tue 18th Aug) | 7ft (2.2m) 19s |
Table - best surf conditions forecast for Inside Reef (Hikkaduwa) over the next 16 days.
The Lowdown
Alright, grab a seat. Rusty here, and I’ve been staring at the charts for Hikkaduwa. Honestly, it’s a bit of a mixed bag, and the next couple of weeks are going to test your patience. The water’s sitting at 82° right now, which is pretty much spot on for the time of year, so you won’t need a wetsuit.
The problem is the wind. For the first week, up until around the 23rd of August, it’s mostly coming from the west, which puts a cross-onshore chop on Inside Reef (Hikkaduwa). That’s the one and only break the data’s talking about. The swell energy is there – we’re seeing moderate to strong readings – but the quality is shot to bits. The scorecard says "poor surf conditions" over and over, and trust me, it’s going to be bumpy and frustrating. It’s not just a washout, it’s a proper struggle. There are a couple of mornings where the wind looks like it could swing onshore, but the swell is tiny and messy. For the most part, you’re looking at a blank run of at least a solid week with nothing worth paddling out for.
Now, the real tease comes in around the last week of August, from the 27th onward. The swell is still solid – you’ve got that SSW energy pumping in, and the combined energy is strong. Wave heights are climbing over 7 ft, pushing up to 8 ft on the 30th. That’s stout stuff, but the wind is still stubbornly from the west, and it’s onshore or cross-onshore. The periods are long, 16 to 19 seconds, which means it’s a proper groundswell – more energy, better shape if the wind plays ball, but here, it’s going to break pretty straight across the reef and get torn up by the breeze.
The best on offer? It’s a low bar, but I’d point you to Saturday the 30th of August afternoon. The swell is a meaty 8 ft from the SSW with an 18-second period – that’s a heap of water moving. The wind is cross-on, which isn’t ideal, but the forecast nudges it to "marginal" rather than outright poor. If you’re an experienced crew who can handle some chop and a heavy, long-period reef break, there’ll be some nasty, powerful sets. It’s not clean, it’s not pretty, but it’s the biggest, most energetic surf in the whole window. This one is for experts only – that size and period will mow down beginners. Expect a crowd, too, because everyone will be itching to get wet after the dry spell.
That’s the story. A whole lot of waiting for a few messy, powerful windows. Keep an eye on it, because forecasts can shift. Rusty.
Short Range ForecastHeavy rain (total 35mm), heaviest during Mon afternoon. Warm (max 27°C on Sat afternoon, min 25°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 19mm), heaviest on Thu night. Warm (max 28°C on Wed morning, min 26°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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) | W 7 | SSE 11 | SSE 11 | SSE 11 | W 10 | SSW 22 | SSW 22 | SSW 21 | SSW 19 | SSW 19 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | S 14 | S 16 |
Wave Graph | ||||||||||||||||||||
338 | 245 | 245 | 206 | 371 | 415 | 896 | 2757 | 3650 | 3463 | 3393 | 2408 | 1896 | 2980 | 2365 | 2028 | 1349 | 1121 | 938 | 667 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on |
High Tide | 3:34PM0.67m | 4:08AM0.66m | 4:00PM0.64m | 4:36AM0.65m | 4:24PM0.59m | 5:04AM0.61m | 4:47PM0.53m | 5:31AM0.56m | 5:05PM0.47m | 6:00AM0.50m | 5:13PM0.40m | 6:37AM0.43m | 4:43PM0.34m | |||||||
Low Tide | 9:48PM-0.00m | 10:02AM0.11m | 10:11PM0.01m | 10:29AM0.14m | 10:33PM0.03m | 10:56AM0.16m | 10:55PM0.06m | 11:23AM0.20m | 11:16PM0.10m | 11:52AM0.24m | 11:35PM0.15m | 12:31PM0.29m | 11:48PM0.20m | |||||||
— | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | |
6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | |
mm | 4 | 5 | 2 | 3 | 3 | 2 | 5 | 11 | — | — | 1 | — | — | 2 | 2 | 1 | 9 | 4 | 2 | 6 |
Temp °C | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 27 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 28 | 27 |
Feels °C | 28 | 28 | 29 | 28 | 29 | 28 | 28 | 28 | 27 | 28 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 10 | SSW 22 | SSW 21 | SSW 19 | SSW 19 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | S 14 | S 13 |
152 | 245 | 245 | 206 | 240 | 152 | 896 | 2757 | 3650 | 3463 | 3393 | 2408 | 1896 | 2980 | 2365 | 2028 | 1349 | 1121 | 938 | 573 | |
Swell 2 Height (m) Direction Period (s) | SSW 15 | W 10 | SSW 14 | SW 14 | SW 13 | SSW 22 | SSE 10 | SSE 10 | W 9 | SSE 10 | W 9 | S 19 | S 18 | S 12 | W 11 | W 10 | WNW 11 | W 10 | W 10 | S 16 |
146 | 71 | 136 | 99 | 87 | 415 | 146 | 111 | 110 | 72 | 79 | 913 | 1455 | 221 | 59 | 51 | 90 | 73 | 48 | 667 | |
Swell 3 Height (m) Direction Period (s) | S 12 | SW 14 | SW 26 | SW 24 | SW 24 | SW 13 | SW 13 | SSW 14 | SSE 10 | — | SSE 9 | W 9 | W 9 | — | — | — | — | S 21 | S 18 | W 9 |
110 | 100 | 26 | 22 | 87 | 44 | 85 | 140 | 85 | — | 49 | 78 | 73 | — | — | — | — | 76 | 169 | 41 | |
Wind waves Height (m) Direction Period (s) | W 7 | W 7 | W 6 | W 6 | W 10 | W 9 | W 10 | W 9 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | WSW 6 | W 6 | W 6 | W 6 |
338 | 217 | 209 | 165 | 371 | 347 | 361 | 334 | 124 | 175 | 109 | 120 | 102 | 154 | 200 | 160 | 140 | 144 | 120 | 91 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 205 | 211 | 646 | 859 | 211 | 210 | 859 | 211 | 205 | 739 | 24 | 210 | 747 | 211 | 210 | 333 | 338 | 719 | 859 | 338 |
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.











