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Surf Forecasts:
The Cave surfForecast / East / Sri Lanka
16 Day Weather and Surf, issued 10 am Monday 11 May 2026 +0530Forecast update in hr min s Forecast update imminent
The Cave surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Cave sea temperature is
30.0° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for The Cave this week:
The surf forecast for The Cave over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (May 11) at 8PM. The primary swell is predicted to be 1.6m and 7s period with a secondary swell of 1.0m and 7s. Another secondary swell of 0.5m and 14s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at The Cave in the next 16 days are 2.0m 16s and forecast to arrive on Tuesday (May 12) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (+0530) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 11th May) | 5ft (1.6m) 7s |
| Best Surf | 8PM (Mon 11th May) | 5ft (1.6m) 7s |
| Most Powerful | 5PM (Tue 12th May) | 6.5ft (2.0m) 16s |
Table - best surf conditions forecast for The Cave over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 22mm), heaviest during Mon afternoon. Warm (max 31°C on Tue afternoon, min 26°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the SW by Wed afternoon). | Days 4-6 Weather SummarySome drizzle, heaviest during Sat afternoon. Warm (max 30°C on Sat morning, min 26°C on Thu night). Winds decreasing (fresh winds from the WSW on Fri morning, light winds from the WSW by Sat afternoon). | ||||||||||||||||||||
Monday 11 | Tuesday 12 | Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
SSW 13 | SSW 13 | SSW 18 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 10 | SW 9 | SSW 13 | SSW 14 | SSW 13 | SSW 9 | SSW 9 | SW 9 | S 14 | S 13 | S 13 | SSW 7 | SSW 7 | SSW 7 | |
98 | 99 | 318 | 396 | 1957 | 970 | 443 | 307 | 437 | 918 | 879 | 299 | 372 | 548 | 535 | 315 | 280 | 212 | 144 | 277 | 208 | |
Wind (km/h) | |||||||||||||||||||||
cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 1:00PM0.21m | 1:37AM0.12m | 1:11PM0.22m | 2:19AM0.14m | 1:29PM0.23m | 2:57AM0.15m | 1:51PM0.24m | 3:34AM0.15m | 2:14PM0.23m | 4:09AM0.16m | 2:37PM0.23m | 4:44AM0.16m | 2:55PM0.21m | 5:23AM0.16m | |||||||
Low Tide | 8:12PM0.06m | 6:20AM0.08m | 8:21PM0.03m | 6:57AM0.09m | 8:41PM0.01m | 7:30AM0.09m | 9:05PM-0.00m | 8:03AM0.10m | 9:31PM-0.01m | 8:34AM0.11m | 9:55PM-0.00m | 9:03AM0.12m | 10:18PM0.01m | ||||||||
 |  |  | |  |  | | |  | |  | | | |  | |  | | | | | |
 | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — | 5:46 | — | — |
 | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:10 | — | — | 6:12 | — | — | 6:12 | — |
— | 9 | 7 | — | 1 | 5 | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | |
Temp °C | 30 | 29 | 26 | 30 | 31 | 27 | 29 | 30 | 27 | 29 | 29 | 27 | 28 | 28 | 26 | 30 | 27 | 27 | 28 | 30 | 27 |
32 | 31 | 29 | 32 | 32 | 29 | 28 | 29 | 27 | 30 | 30 | 28 | 25 | 27 | 27 | 30 | 29 | 27 | 28 | 31 | 26 | |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 7 | SSW 13 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 9 | SSW 12 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 9 | S 14 | S 13 | S 13 | S 12 | S 12 | S 12 |
 kJ | 98 | 99 | 78 | 396 | 1068 | 970 | 443 | 285 | 201 | 341 | 879 | 299 | 295 | 232 | 222 | 315 | 280 | 212 | 144 | 108 | 69 |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SSE 9 | SSW 18 | SSW 16 | SE 8 | SE 9 | SE 8 | SE 8 | S 15 | S 15 | SSE 8 | SSE 8 | S 17 | S 16 | SSW 12 | SE 9 | ESE 9 | SSW 15 | S 9 | S 16 | S 15 |
| kJ | 30 | 29 | 318 | 366 | 16 | 20 | 18 | 11 | 168 | 209 | 7 | 7 | 53 | 82 | 202 | 13 | 8 | 42 | 23 | 43 | 38 |
Swell 3 Height (m) Direction Period (s) | SW 7 | SSW 19 | SSW 13 | SE 8 | ESE 9 | SW 16 | S 20 | S 20 | SSE 9 | SE 8 | E 11 | SE 8 | SE 8 | ESE 10 | S 15 | SSW 16 | SW 16 | SSW 8 | SE 8 | SE 8 | SSW 19 |
| kJ | 7 | 74 | 98 | 23 | 8 | 10 | 8 | 7 | 8 | 11 | 2 | 2 | 3 | 10 | 109 | 25 | 10 | 7 | 3 | 3 | 37 |
Wind waves Height (m) Direction Period (s) | SSW 5 | SSW 6 | — | SW 8 | SSW 16 | SW 8 | SSW 8 | SSW 10 | SW 9 | SSW 13 | SW 9 | SSW 9 | SSW 9 | SSW 9 | SW 9 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | SSW 7 |
| kJ | 13 | 51 | — | 173 | 1957 | 383 | 217 | 307 | 437 | 918 | 399 | 211 | 372 | 548 | 535 | 217 | 226 | 129 | 138 | 277 | 208 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 43 | 15 | 15 | 15 | 43 | 45 | 45 | 1323 | 35 | 35 | 35 | 45 | 1834 | 35 | 15 | 45 | 15 | 45 | 45 | 45 | 46 |
Best forecast wave conditions in East Sri Lanka | |||||||||||||||||||||
Best forecast wave conditions in Sri Lanka | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 Cave 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 Cave Surf forecast
The above surf forecast table for The Cave provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Cave can be found by selecting the local surf guide option on the grey menu. Our The Cave 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 Cave) 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 Cave 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.
The Cave is 78 km (48 miles) from Hambantota. If you plan a holiday in East Sri Lanka, look for hotels and other accommodation in Hambantota. Hambantota has rooms for a wide range of budgets as well as car hire and transport links.
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