Surf Forecasts:
Green Room surf forecast from 15 Jul 2026:
- Most powerful swell: Tuesday 21 Jul, 11AM (local time) - 5ft (1.6m), 15s period, S swell with 1,138 kJ wave energy.
Best Forecast Surf Conditions for Green Room this week:
The most powerful waves expected at Green Room in the next 16 days are 1.6m 15s and forecast to arrive on Tuesday (Jul 21) at 11AM. 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 | 11AM (Tue 21st Jul) | 5ft (1.6m) 15s |
Table - best surf conditions forecast for Green Room over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s look at what’s on offer for Green Room over the next 16 days.
I gotta be straight with you – this stretch is a tough one. The whole 16-day window is a poor run of surf conditions. There’s not a single recommendation, and the wind is a constant problem. We’re locked into a pattern of cross-onshore winds, mostly from the SW and SSW, with moderate to fresh breezes, and that’s keeping the lineup lumpy and choppy. The first surfless gap starts right now, and it runs all the way through to the end of the forecast on July 30th. That’s a long blank run.
Green Room is a reef break, and it’s getting plenty of swell energy – the combined energy often sits in the moderate to strong range, like 442 (moderate) early on, ramping up to 1252 (strong) on July 21st morning. But it’s all being wrecked by the wind. The swell direction is consistently from the SSW to S, which matches the optimum direction of S, but it’s useless with that cross-on wind. The water temperature anomaly is about average for the time of year, so nothing unusual there.
The swell heights bounce around, with some pulses like 5 ft and 6 ft, but with periods as short as 6 seconds, it’s just weak, short-period windswell on top of the lump. Even when we see a 24-second period on the morning of July 26th, the swell is only 1 ft, and the wind is a fresh cross-on. It’s a frustrating mix. If you’re thinking of a paddle, it’s a no-go. Honestly, with the windy, lumpy conditions and the beach/reef setup, this looks more interesting for kite surfing than a paddle session.
That’s the long and short of it. Forecasts can change, but for now, save your energy.
Rusty
Short Range ForecastSome drizzle, heaviest during Tue night. Warm (max 33°C on Wed afternoon, min 26°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 32°C on Sat morning, min 26°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | S 11 | SSW 16 | SSW 15 | SSW 15 | S 10 | SSW 14 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 7 | SSW 14 | SSW 7 | SSW 7 | S 20 | S 18 | S 17 | S 16 | S 15 | S 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 206 | 191 | 196 | 209 | 308 | 188 | 212 | 188 | 253 | 175 | 115 | 286 | 143 | 137 | 234 | 268 | 620 | 724 | 743 | 1138 | 515 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | cross-on |
High Tide | 6:06AM0.21m | 3:27PM0.14m | 6:32AM0.21m | 3:10PM0.14m | 6:55AM0.21m | 7:11AM0.20m | 7:17AM0.19m | 7:10AM0.18m | 6:53AM0.17m | ||||||||||||
Low Tide | 10:27PM0.00m | 12:14PM0.13m | 10:41PM0.01m | 1:16PM0.13m | 10:49PM0.01m | 10:52PM0.02m | 10:50PM0.03m | 10:40PM0.05m | 10:19PM0.06m | ||||||||||||
 |  | |  | | | | | | | |  | | | |  | | | | | | |
 | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — |
 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 32 | 33 | 29 | 32 | 32 | 28 | 32 | 32 | 28 | 32 | 31 | 28 | 32 | 31 | 28 | 31 | 31 | 29 | 31 | 31 |
Feels °C | 26 | 30 | 31 | 28 | 31 | 29 | 27 | 30 | 29 | 27 | 31 | 30 | 27 | 31 | 29 | 28 | 30 | 30 | 29 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 11 | SSW 14 | SSE 10 | SSE 10 | SSE 10 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 14 | S 18 | S 17 | S 16 | S 15 | S 14 |
| kJ | 192 | 154 | 119 | 188 | 186 | 106 | 131 | 100 | 188 | 175 | 115 | 105 | 143 | 137 | 173 | 213 | 620 | 724 | 743 | 1138 | 515 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 15 | SSW 15 | ESE 8 | SSW 14 | SSW 16 | SSW 15 | SSE 10 | S 9 | S 9 | SE 9 | SE 8 | SE 8 | S 21 | S 20 | SSW 13 | SSW 13 | S 12 | SE 8 | S 10 |
| kJ | 206 | 191 | 196 | 209 | 7 | 183 | 212 | 188 | 32 | 45 | 41 | 12 | 11 | 11 | 81 | 268 | 133 | 131 | 137 | 10 | 30 |
Swell 3 Height (m) Direction Period (s) | SSE 13 | ESE 8 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | SE 8 | ESE 9 | SE 8 | SE 9 | — | SE 8 | S 16 | SE 8 | SE 9 | SE 8 | SE 8 | SE 8 | SW 16 | SW 19 |
| kJ | 16 | 6 | 8 | 8 | 7 | 7 | 6 | 2 | 8 | 3 | 13 | — | 11 | 20 | 11 | 12 | 18 | 11 | 10 | 10 | 15 |
Wind waves Height (m) Direction Period (s) | SSW 6 | SSW 6 | SSW 6 | SW 5 | S 10 | SSW 6 | SW 6 | SW 5 | SSW 6 | SW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 5 | SSW 6 |
| kJ | 80 | 91 | 186 | 34 | 308 | 188 | 61 | 42 | 253 | 75 | 91 | 286 | 128 | 124 | 234 | 102 | 93 | 195 | 68 | 94 | 176 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 34 | 631 | 32 | 34 | 32 | 931 | 34 | 631 | 452 | 34 | 32 | 452 | 34 | 32 | 32 | 34 | 32 | 930 | 34 | 631 | 931 |
Best forecast wave conditions in East Sri Lanka | |||||||||||||||||||||
Best forecast wave conditions in Sri Lanka | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
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 Green Room 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 Green Room Surf forecast
The above surf forecast table for Green Room provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Green Room can be found by selecting the local surf guide option on the grey menu. Our Green Room 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 (Green Room) 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 Green Room 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.
Green Room is 75 km (47 miles) from Ampara. If you plan a holiday in East Sri Lanka, look for hotels and other accommodation in Ampara. Ampara has rooms for a wide range of budgets as well as car hire and transport links.
Nearest