
Surf Forecasts:
Gerpuk Bay - Inside Gerpuk surf forecast from 6 Aug 2026:
- Most powerful swell: Tuesday 11 Aug, 5PM (local time) - 10ft (3.0m), 19s period, SSW swell with 6,500 kJ wave energy.
Best Forecast Surf Conditions for Gerpuk Bay - Inside Gerpuk this week:
The most powerful waves expected at Gerpuk Bay - Inside Gerpuk in the next 16 days are 3.0m 19s and forecast to arrive on Tuesday (Aug 11) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Tue 11th Aug) | 10ft (3.0m) 19s |
Table - best surf conditions forecast for Gerpuk Bay - Inside Gerpuk over the next 16 days.
The Lowdown
G'day, Rusty here. Look, I've gotta be straight with you – the next sixteen days are a tough watch for anyone looking for a proper surf. We've got a solid, consistent swell from the SSW and SW running the whole time, but the wind is the real killer. It's coming in from the SE at 15 to 22 mph, and it's either blowing straight on or cross-onshore for every single session. That means the ocean is going to be a mess of chop and lumpy bumps, not the clean lines we're after. It's a real shame.
Let's start with the immediate outlook. From Friday the 7th right through the weekend, we've got a solid 8 ft to 8 ft SSW swell pushing in with a period of 16 to 17 seconds. That's a proper groundswell, bringing a lot of energy (combined energy of all swells directed here is between 3588 and 2973). The wind is a fresh 15 to 19 mph onshore, so the only thing this will be good for is a bit of kite surfing muscle. The surf quality is just poor.
Moving into the start of the next week, Monday the 10th, the swell actually puts on a bit of a show, but it's a cruel tease. Monday afternoon sees a bump up to 10 ft at 18 seconds from the SSW, with a combined energy of all swells directed here at 5830 – that's a lot of power. But the wind is still a moderate cross-onshore, making it choppy. Tuesday the 11th is even more frustrating, with the same 10 ft swell but the combined energy of all swells directed here hits 8357 on Tuesday afternoon. That is strong wave energy, but it's utterly wasted by the onshore wind. For a beginner, this is way too big anyway, over 8 ft, so it's strictly for experts, and even then, the conditions are poor.
The only break we've got to look at is Gerpuk Bay - Inside Gerpuk. It's a reef break, very consistent, and it's rated as a beginner spot. It's fairly exposed to the swell and the optimum direction is SSW, which is exactly what we're getting. That's the good news. The bad news is the wind. The forecast shows the wind is always from the SE, which is onshore for this spot. The crowd factor is "often", so on a good day you'd be sharing it, but these aren't good days. The water temperature is about average for the time of year.
The pattern doesn't let up. Wednesday the 12th through to the end of the first week is more of the same – 7 ft to 10 ft SSW swell, but the wind stays onshore or cross-onshore at 15 mph. The surf quality is consistently poor. The second week, from the 16th onward, is a bit of a repeat. The swell direction swings to the SW from the 18th, with some solid 10 ft days on the 19th and 20th (combined energy of all swells directed here at 5964 on the 20th morning). But the wind is up to 22 mph at times, and it's still onshore. The setup looks far more interesting for kite surfing than paddle surfing.
So, the honest truth is there's no standout session, no clean window. It's a sustained run of solid swell but terrible wind. For a spot that's as consistent as Gerpuk Bay, it's a real bummer. We just have to hope the forecasts change, because this blank run of quality is a normal part of the season's pattern. Keep your eye on the charts, but for now, I'd save the wax.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Fri morning, min 23°C on Thu night). Winds increasing (light winds from the E on Fri morning, fresh winds from the SSE by Sat afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Tue morning, min 24°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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) | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 19 | SSW 18 | SSW 17 | SSW 17 | SSW 19 | SSW 16 | SSW 14 | SSW 15 | SSW 18 |
Wave Graph | |||||||||||||||||||
2389 | 3528 | 3681 | 3881 | 3237 | 2900 | 2697 | 2518 | 2271 | 1797 | 2418 | 5830 | 6273 | 5136 | 6500 | 3412 | 1724 | 2479 | 1917 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross-on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on |
High Tide | 2:46AM2.45m | 3:17PM1.64m | 3:40AM2.33m | 4:56PM1.42m | 5:07AM2.23m | 7:52PM1.45m | 7:01AM2.27m | 9:09PM1.68m | 8:26AM2.44m | 9:51PM1.95m | 9:26AM2.64m | 10:27PM2.21m | |||||||
Low Tide | 8:11PM0.73m | 9:36AM0.76m | 8:46PM0.93m | 11:05AM0.85m | 9:40PM1.13m | 1:10PM0.79m | 11:50PM1.27m | 2:37PM0.58m | 1:58AM1.17m | 3:30PM0.36m | 3:10AM0.93m | 4:10PM0.19m | 4:02AM0.68m | ||||||
— | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:26 | — | — | |
6:13 | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 25 | 25 | 24 | 26 | 26 | 24 | 26 | 26 | 25 |
Feels °C | 24 | 25 | 24 | 25 | 24 | 24 | 23 | 24 | 24 | 24 | 25 | 24 | 24 | 25 | 25 | 23 | 25 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 18 | SSW 17 | SSW 17 | SSW 19 | SSW 16 | SSW 14 | SSW 15 | SSW 18 |
2389 | 3528 | 3681 | 3881 | 3237 | 2900 | 2697 | 2518 | 2271 | 1797 | 1670 | 5830 | 6273 | 5136 | 6500 | 3412 | 1724 | 2479 | 1917 | |
Swell 2 Height (m) Direction Period (s) | — | SE 6 | — | — | SE 6 | — | — | — | — | — | SSW 19 | — | — | — | SSW 19 | — | SSW 17 | SSW 22 | S 13 |
— | 60 | — | — | 53 | — | — | — | — | — | 2418 | — | — | — | 1840 | — | 1107 | 46 | 987 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 6 | — | SE 6 | SE 6 | — | SE 5 | SE 5 | SE 5 | SE 5 | SE 5 | — | — | — | — | SE 4 | SE 5 | — | ESE 4 | — |
72 | — | 88 | 61 | — | 73 | 50 | 68 | 65 | 38 | — | — | — | — | 17 | 16 | — | 21 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 11 | 42 | 42 | 11 | 42 | 42 | 30 | 43 | 55 | 12 | 43 | 43 | 11 | 104 | 55 | 30 | 42 | 42 | 12 |
Best forecast wave conditions in South Coast of Lombok | |||||||||||||||||||
Best forecast wave conditions in Indonesia | |||||||||||||||||||
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Information about the Gerpuk Bay - Inside Gerpuk Surf forecast
The above surf forecast table for Gerpuk Bay - Inside Gerpuk provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Gerpuk Bay - Inside Gerpuk can be found by selecting the local surf guide option on the grey menu. Our Gerpuk Bay - Inside Gerpuk 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 (Gerpuk Bay - Inside Gerpuk) 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 Gerpuk Bay - Inside Gerpuk 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.
Grupuk is 26 km (16 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.











