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Surf Forecasts:
The Rock surfForecast / West / Sri Lanka
16 Day Weather and Surf, issued 10 am Tuesday 21 Apr 2026 +0530Forecast update in hr min s Forecast update imminent
The Rock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Rock sea temperature is
30.7° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for The Rock this week:
The surf forecast for The Rock over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Apr 21) at 8PM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.5m and 12s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at The Rock in the next 16 days are 0.8m 16s and forecast to arrive on Sunday (Apr 26) at 2PM. 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+) | 8PM (Tue 21st Apr) | 2.5ft (0.7m) 10s |
| Best Surf | 2AM (Sun 26th Apr) | 2.5ft (0.7m) 18s |
| Most Powerful | 2PM (Sun 26th Apr) | 2.5ft (0.8m) 16s |
Table - best surf conditions forecast for The Rock over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Heavy rain (total 34mm), heaviest during Wed night. Warm (max 30°C on Wed morning, min 26°C on Tue night). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 15mm), heaviest on Sun night. Warm (max 30°C on Fri morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 11 | 10 | 10 | 12 | 12 | 18 | 17 | 16 | 17 | 10 | 16 | 14 | 10 | 20 | 18 | 16 | 16 | 15 | 14 | 10 | 14 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 144 | 93 | 89 | 82 | 72 | 101 | 93 | 129 | 145 | 125 | 172 | 102 | 88 | 186 | 307 | 257 | 254 | 292 | 142 | 118 | 156 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | glass | on | cross- on | glass | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | glass | cross- on | cross- on | cross | cross- on | cross- on | cross- on |
High Tide / height (m) | 4:23PM 0.53 | 4:35AM 0.40 | 4:53PM 0.47 | 5:12AM 0.35 | 5:24PM 0.40 | 6:22AM 0.30 | 6:08PM 0.34 | 12:03PM 0.33 | 10:47PM 0.32 | 12:20PM 0.39 | 11:56PM 0.36 | 12:43PM 0.45 | 12:34AM 0.40 | ||||||||
Low Tide / height (m) | 9:57AM 0.06 | 10:46PM 0.10 | 10:26AM 0.12 | 11:23PM 0.15 | 10:52AM 0.19 | 12:18AM 0.20 | 11:10AM 0.26 | 3:45AM 0.22 | 5:49PM 0.27 | 5:29AM 0.17 | 6:26PM 0.21 | 6:08AM 0.13 | 6:54PM 0.16 | ||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | |||||||||||||||
| Sunrise | 5:58 | - | - | 5:58 | - | - | 5:58 | - | - | 5:58 | - | - | 5:56 | - | - | 5:56 | - | - | 5:56 | - | - |
| Sunset | - | 6:15 | - | - | 6:15 | - | - | 6:15 | - | - | 6:15 | - | - | 6:15 | - | - | 6:15 | - | - | 6:15 | - |
 | |  |  | | | | |  | | | | |  | | | | | | |  | |
Rain (mm) | 1 | 6 | 4 | - | 5 | 11 | 5 | 2 | - | 1 | - | 4 | 1 | - | 2 | - | 1 | 6 | 2 | - | 2 |
| Temp. °C | 29 | 29 | 27 | 30 | 29 | 28 | 29 | 29 | 28 | 30 | 30 | 28 | 29 | 29 | 28 | 30 | 30 | 28 | 29 | 30 | 28 |
| Feels °C (?) | 32 | 32 | 32 | 33 | 32 | 31 | 32 | 32 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 33 | 32 | 32 | 32 | 33 | 32 |
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our The Rock surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the The Rock Surf forecast
The above surf forecast table for The Rock provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Rock can be found by selecting the local surf guide option on the grey menu. Our The Rock 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 (The Rock) 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 The Rock 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.
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