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Surf Forecasts:
The Cave surfForecast / East / Sri Lanka
48hr Weather and Surf, issued 10 am Monday 15 Sep 2025 +0530
How big are the waves at The Cave today?
The current surf forecast for The Cave at 3PM is: 0.9m 14s primary swell from a South-southwest direction and 0.4m 10s secondary swell from a South-southeast direction, 1.3m 6s secondary swell from a South-southwest direction (forecast issued at 10:30am September 15). The wind direction is predicted to be cross-onshore.
| Time (+0530) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Sep) | 3ft (0.9m) | 15s |
| Afternoon (15 Sep) | 3ft (0.9m) | 14s |
| Evening (15 Sep) | 3ft (0.9m) | 14s |
Table - waves today at The Cave. (Swell directed towards the surf break)
Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||
| 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 7 | 18 | 17 | 16 | 16 | 16 | 15 | 11 | 15 | 14 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 305 | 301 | 293 | 265 | 261 | 257 | 232 | 246 | 212 | 205 | 280 | 234 | 300 | 454 | 1026 | 635 | 620 | 581 | 634 | 530 | 515 | 423 | 336 | 711 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross | cross- on | cross | cross | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross | cross | cross | cross |
High Tide / height (m) | 2:26PM 0.11 | 3:10AM 0.20 | 2:09PM 0.12 | 3:06AM 0.21 | 2:08PM 0.13 | 3:09AM 0.22 | ||||||||||||||||||
Low Tide / height (m) | 10:25AM 0.09 | 7:55PM 0.06 | 9:52AM 0.09 | 7:57PM 0.05 | 9:35AM 0.09 | 8:07PM 0.03 | ||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||
| Sunrise | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 6:02 | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:01 | - | - | - | - |
 |  | | |  | |  |  | | | |  | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | 1 | 1 | - | - | - | - | - | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 29 | 32 | 31 | 31 | 28 | 27 | 27 | 27 | 28 | 31 | 31 | 30 | 27 | 27 | 27 | 27 | 28 | 31 | 29 | 29 | 27 | 27 | 27 | 26 |
| Feels °C (?) | 29 | 31 | 29 | 30 | 29 | 28 | 28 | 28 | 27 | 29 | 30 | 30 | 28 | 28 | 27 | 27 | 28 | 29 | 26 | 28 | 27 | 27 | 27 | 26 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for East
The wind is still cross-off at The Cave (fresh winds from the W at Mattala Rajapaksa International Airport 69 km from The Cave). 1.3m 6s windswell from the SSW with a 0.9m 14s groundswell, also from the SSW and a 0.6m 10s swell, also from the SSE. 3 swells combining to make bigger set waves.
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.
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