Surf Forecasts:
Inside Reef (Hikkaduwa) surf forecast from 18 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 8AM (local time) - 8ft (2.4m), 18s period, SSW swell with 3,561 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 2.4m 18s and forecast to arrive on Wednesday (Aug 19) at 8AM. 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 | 8AM (Wed 19th Aug) | 8ft (2.4m) 18s |
Table - best surf conditions forecast for Inside Reef (Hikkaduwa) over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ve been staring at the charts for this stretch, and I’m not gonna lie – it’s a tough run for Inside Reef (Hikkaduwa). The whole 16-day window from August 18th right through to September 2nd is a real battle. The wind is almost always cross-on or onshore from the west, and there are stormy skies or risk of thunderstorms most days. That means the surface is going to be choppy more often than not, and the surf quality is poor to marginal for the vast majority of the period. There are no standout sessions that I’d paddle out for with real confidence.
We start on Tuesday the 18th of August afternoon with a bit of a tease. A 7ft SSW swell is rolling in with a long 19-second period – that’s proper groundswell energy, good for a reef setup like this. The combined energy is strong, sitting at 3876. But the wind is a cross-on 12 mph from the WNW, and it’s labelled as choppy. The water temp is 83°, about 1° warmer than average, so it’s a touch warmer than usual for this time of year, but nothing crazy. Still, the conditions are marginal, and tide could mess things up.
From Wednesday the 19th through to the end of August, it’s pretty much the same story. Swell hangs around between 5ft and 7ft, mostly from the SSW, with periods between 14 and 17 seconds – plenty of energy in the water (combined energy ranges from 1334 up to 3497). But the wind stays stubbornly cross-on from the west at 9 to 16 mph, and it’s often accompanied by stormy weather. On a few mornings, like the 22nd and 23rd, the wind is listed as “on,” which might be offshore, but the overall conditions are still poor or marginal. Nothing cleans up enough to get excited about.
The second week, from around the 25th of August into early September, the swell drops off a bit, with heights between 3ft and 7ft. The period goes long again on the 29th with a 20-second groundswell, but that 3ft to 3ft swell is small, and the wind is still cross-on. The energy levels fall to moderate, around 887 to 2569. Thursday the 27th afternoon sees a spike in energy to 2197, but again, the conditions are poor. There’s just no window of clean, offshore wind with decent swell.
Honestly, if you’re looking to paddle, this is a blank run. The setup here might actually be more interesting for kite surfing than paddle surfing on most days, given the consistent cross-on wind and solid swell. It’s a quiet outlook, but forecasts can always change, so keep an eye on it.
Rusty.
Short Range ForecastHeavy rain (total 28mm), heaviest during Wed night. Warm (max 28°C on Wed morning, min 26°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 24mm), heaviest during Sat night. Warm (max 28°C on Sat morning, min 26°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | S 14 | S 17 | S 15 | S 15 | S 14 | S 14 | S 13 | S 13 | SSW 17 | SSW 16 | SSW 15 |
Wave Graph | |||||||||||||||||||
3393 | 2408 | 1896 | 2980 | 1968 | 2054 | 1460 | 1121 | 938 | 675 | 1275 | 1409 | 999 | 831 | 683 | 563 | 505 | 778 | 941 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on |
High Tide | 5:31AM0.56m | 5:05PM0.47m | 6:00AM0.50m | 5:13PM0.40m | 6:37AM0.43m | 4:43PM0.34m | 8:50AM0.38m | 12:12PM0.42m | 1:13AM0.32m | 12:51PM0.48m | 1:27AM0.39m | ||||||||
Low Tide | 10:55PM0.06m | 11:23AM0.20m | 11:16PM0.10m | 11:52AM0.24m | 11:35PM0.15m | 12:31PM0.29m | 11:48PM0.20m | 8:59PM0.24m | 7:45PM0.20m | 6:20AM0.23m | 7:44PM0.15m | ||||||||
— | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | |
— | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | — | 6:21 | — | — | 6:20 | — | — | 6:20 | — | |
mm | 2 | 2 | 2 | 7 | 2 | 2 | 7 | 3 | 1 | 4 | 1 | 2 | 6 | 3 | 2 | 3 | 2 | 1 | — |
Temp °C | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 28 | 30 | 29 | 28 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | S 14 | S 13 | S 15 | S 15 | S 14 | S 14 | S 13 | S 13 | S 12 | SSW 16 | SSW 15 |
3393 | 2408 | 1896 | 2980 | 1968 | 2054 | 1460 | 1121 | 938 | 564 | 1275 | 1409 | 999 | 831 | 683 | 563 | 350 | 778 | 941 | |
Swell 2 Height (m) Direction Period (s) | SSE 9 | S 19 | S 18 | W 8 | S 12 | W 10 | W 10 | W 10 | W 9 | S 17 | S 18 | S 26 | W 8 | S 21 | S 20 | SSW 18 | SSW 17 | S 12 | W 11 |
48 | 913 | 1455 | 52 | 224 | 67 | 74 | 49 | 64 | 675 | 155 | 13 | 34 | 332 | 373 | 422 | 505 | 409 | 55 | |
Swell 3 Height (m) Direction Period (s) | S 21 | SSE 9 | — | — | W 9 | — | S 24 | S 22 | S 18 | W 9 | S 26 | S 26 | SSW 24 | WNW 8 | W 8 | WNW 10 | WNW 10 | — | — |
323 | 31 | — | — | 61 | — | 11 | 36 | 248 | 39 | 13 | 13 | 108 | 22 | 31 | 63 | 80 | — | — | |
Wind waves Height (m) Direction Period (s) | W 9 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 5 | W 5 | W 5 | W 5 |
239 | 115 | 108 | 106 | 112 | 108 | 110 | 119 | 98 | 102 | 141 | 109 | 61 | 64 | 49 | 35 | 55 | 67 | 77 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 211 | 210 | 211 | 211 | 205 | 210 | 211 | 210 | 210 | 211 | 210 | 210 | 211 | 210 | 738 | 211 | 210 | 738 | 211 |
Best forecast wave conditions in West Sri Lanka | |||||||||||||||||||
Best forecast wave conditions in Sri Lanka | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











