
Surf Forecasts:
Ekas-Inside surf forecast from 15 Sep 2026:
- Best quality surf: Sunday 20 Sep, 8AM (local time) - 6ft (1.9m), 17s period, SW swell with offshore winds.
- Most powerful swell: Sunday 20 Sep, 8PM (local time) - 7ft (2.1m), 16s period, SW swell with 2,212 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 2AM (local time) - 6ft (1.8m), 15s period with SW swell.
Best Forecast Surf Conditions for Ekas-Inside this week:
The surf forecast for Ekas-Inside over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 16) at 2AM. The primary swell is predicted to be 1.8m and 15s period with a secondary swell of 0.1m and 24s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Ekas-Inside in the next 16 days are 2.1m 16s and forecast to arrive on Sunday (Sep 20) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Tuesday (Sep 15) at 5PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 16th Sep) | 6ft (1.8m) 15s |
| Best Surf | 8AM (Sun 20th Sep) | 6ft (1.9m) 17s |
| Most Powerful | 8PM (Sun 20th Sep) | 7ft (2.1m) 16s |
Table - best surf conditions forecast for Ekas-Inside over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming down the line for Ekas-Inside. This reef set-up is staying pretty consistent in the 16-day window but, to be honest, a lot of it is just ticking over with cross-off breezes. The water temp is sitting at 79°F – about normal for the time of year, so no surprises there.
The first few days are a bit of a grind. We kick off on Tuesday, the 15th, with a 6ft SW groundswell, period a nice long 15 seconds, but those cross-off winds from the SE at 16–19 mph really stop it from being special. It’s clean, but the combined energy is moderate to strong (1540), though the score you’d give it is low. This kind of long-period SW swell on a sheltered reef can actually work in your favour, with good shape and longer lulls between sets, making the paddle easier. Still, it’s nothing to write home about.
Wednesday and Thursday the 16th and 17th are much the same story – 6ft to 7ft of SW-SSW swell, same long periods, but the wind is still a moderate cross-off. The swell energy stays in the strong range, peaking at 1922 on Thursday morning, but without proper offshore or glassy conditions, it stays just “okay.” On Friday the 18th, we finally get a bit of a reprieve. The morning sees a light breeze of only 6 mph from the SE, still cross-off but much cleaner. That 6ft, 14-second SW groundswell will actually start to look good, especially with the combined energy at 1124 – that’s moderate to strong. This is the first real highlight of the run, but it’s short-lived as the breeze picks up again by the afternoon.
The weekend (19th and 20th) sees the swell drop to 4ft on Saturday, and while Sunday pumps back up to 6ft–7ft with a 16-second period and the biggest combined energy yet at 2205, the wind is still a moderate cross-off. It’s surfable but nothing that will make you skip work.
Then we hit a bit of a flat patch in the middle of the week, with the 22nd and 25th offering only 4ft to 5ft swell. The energy drops below 1000, so it’s weak. That’s a few days of slim pickings.
Now, here’s where it gets interesting. From the 26th of September, things ramp up in a big way. Saturday the 26th sees a massive jump: 10ft–12ft SSW groundswell with a very long 20–21 second period. The combined energy is through the roof – 7182 to 8529 – that’s very strong wave energy. But hold up, because with the swell over 8ft and that super long period, this is strictly for experienced surfers. The reef will handle it, but the sets will be powerful and the lulls long. Winds are still moderate cross-off, so it won’t be glassy, but it’ll be clean. The best day of the whole window, hands down, is Sunday the 27th morning. The swell holds at 10ft, period still long at 18 seconds, but the wind drops to a gentle 9 mph from the ESE – that’s cross-off but as light as it gets here. The combined energy is a beastly 6475. The report even says excellent surf for experienced surfers. If you’re charging, this is your window.
Monday the 28th is still solid at 8ft, but the swell eases through the 29th and 30th back to 5ft–6ft. The 30th of September has another long-period SSW pulse at 6ft with a 16-second period and moderate cross-off wind, keeping it fun but not as epic as that 27th.
Best on offer: The clear standout is Sunday morning, 27th September at Ekas-Inside (Lombok). You’re looking at 10ft of SSW groundswell, with a very long 18-second period, light 9 mph cross-off winds, and combined energy of 6475. This is big, powerful reef surf for experienced surfers only. Crowds are sometimes expected, but with a swell this size, it might thin the pack. The direction is SSW, which matches the optimum SSW direction perfectly, so the reef will be lining up nicely. Get on it.
The second call is Friday morning, 18th September – smaller but cleaner at 6ft with light winds.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 27°C on Tue morning, min 23°C on Thu night). Winds decreasing (fresh winds from the SSE on Tue afternoon, calm by Thu night). | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Fri afternoon, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
AM | PM | 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) | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SSW 15 | SSW 14 | SSW 14 | SW 14 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 |
Wave Graph | |||||||||||||||||||||
1540 | 1474 | 1474 | 1237 | 1340 | 1847 | 1900 | 1582 | 1249 | 1019 | 907 | 752 | 606 | 597 | 1087 | 1878 | 2087 | 2157 | 1542 | 1382 | 911 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off |
High Tide | 12:28PM1.94m | 00:28AM2.36m | 12:58PM1.76m | 00:54AM2.25m | 1:26PM1.58m | 1:20AM2.11m | 1:55PM1.39m | 1:48AM1.94m | 2:32PM1.20m | 2:23AM1.77m | 3:39AM1.60m | 11:10PM1.37m | |||||||||
Low Tide | 6:19PM0.48m | 7:07AM0.29m | 6:39PM0.60m | 7:39AM0.42m | 6:55PM0.72m | 8:14AM0.59m | 7:05PM0.85m | 9:00AM0.77m | 7:03PM0.98m | 10:47AM0.91m | 2:01PM0.83m | 1:17AM1.36m | |||||||||
6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | |
— | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 28 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 |
Feels °C | 26 | 26 | 26 | 27 | 26 | 26 | 27 | 26 | 27 | 28 | 29 | 27 | 29 | 27 | 27 | 28 | 26 | 26 | 27 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SSW 15 | SSW 14 | SSW 14 | SW 14 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 |
1540 | 1474 | 1474 | 1237 | 1340 | 1847 | 1900 | 1582 | 1249 | 1019 | 907 | 752 | 606 | 597 | 1087 | 1878 | 2087 | 2157 | 1542 | 1382 | 911 | |
Swell 2 Height (m) Direction Period (s) | — | — | SW 24 | SE 5 | W 16 | — | SE 6 | SE 6 | SE 5 | SE 6 | SE 6 | SE 5 | SW 18 | SW 18 | SW 13 | SE 6 | SE 6 | — | SE 6 | SE 6 | SW 20 |
— | — | 22 | 39 | 5 | — | 22 | 20 | 25 | 29 | 29 | 10 | 210 | 336 | 336 | 30 | 42 | — | 56 | 38 | 16 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | SSW 21 | — | — | — | — | — | SW 22 | SW 21 | SW 20 | SE 5 | SE 5 | — | — | — | — | — | — | — |
— | — | — | 45 | — | — | — | — | — | 18 | 18 | 99 | 8 | 9 | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 6 | SE 5 | SE 5 | SE 5 | SSE 5 | SSE 5 | ESE 6 | SE 6 | ESE 5 | ESE 6 | — | ESE 5 | — | — | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 5 |
44 | 115 | 36 | 55 | 45 | 20 | 66 | 42 | 45 | 58 | — | 18 | — | — | 34 | 66 | 76 | 49 | 97 | 67 | 28 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 31 | 31 | 0 | 31 | 31 | 0 | 31 | 19 | 0 | 0 | 30 | 0 | 0 | 31 | 0 | 31 | 31 | 0 | 31 | 31 | 0 |
Best forecast wave conditions in South Coast of Lombok | |||||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||||
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)
Information about the Ekas-Inside Surf forecast
The above surf forecast table for Ekas-Inside provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ekas-Inside can be found by selecting the local surf guide option on the grey menu. Our Ekas-Inside 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 (Ekas-Inside) 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 Ekas-Inside 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.
Ekas-Inside is 28 km (17 miles) from the city of Praya. If you plan a holiday in South Coast of Lombok, look for hotels and other accommodation in Praya. Praya has rooms for a wide range of budgets as well as car hire and transport links.










