
Surf Forecasts:
Green Ball surf forecast from 25 Jul 2026:
- Most powerful swell: Saturday 1 Aug, 2PM (local time) - 5.5ft (1.7m), 16s period, SSW swell with 1,461 kJ wave energy.
Best Forecast Surf Conditions for Green Ball this week:
The most powerful waves expected at Green Ball in the next 16 days are 1.7m 16s and forecast to arrive on Saturday (Aug 01) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 7s period and expected on Tuesday (Jul 28) at 11PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Sat 1st Aug) | 5.5ft (1.7m) 16s |
Table - best surf conditions forecast for Green Ball over the next 16 days.
The Lowdown
IMPERIAL
Alright mates, Rusty here. Let’s break down what’s happening at Green Ball for the next 16 days.
First thing’s first – it’s a long, dry spell. The water temp is a normal 80°, no drama there.
The nearest we get to a surfable wave is on the morning of Saturday, July 26th, but it’s a real struggle. There’s a 8ft SE swell, but it’s a short-period 9 seconds. The wind is a messy cross-shore at 19 mph, and the wave energy is high at 1483, but the whole thing is too lumpy and cross-chopped to be any fun. It gets worse from there with onshore winds. Honestly, the period from the 25th of July right through the end of the month is a total write-off.
The one and only standout in this whole outlook is the morning of Monday, August 3rd. It’s not huge, but it’s the only clean window we’ve got. Expect a 6ft SSW groundswell with a nice, long 15-second period. The wind finally swings around to a clean cross-shore from the ESE at 12 mph. The wave energy is moderate (1379), and the SSW direction is spot-on for Green Ball’s reef. It’s a 2/10 in the scoring, but that’s a win in this forecast. The long period will give you some proper shaped waves on the reef, and with that cross-shore wind, it could be glassy. This is your one chance.
After that, it’s back to onshore junk. The swell actually gets massive – we’re talking 10ft from the SSW on Thursday, August 6th with a super long 18-second period and wave energy through the roof at 4823. But the wind is a constant 16 mph cross-onshore. For a reef with that much power and that wind, it’s going to be a miss. Frankly, it’s more of a kite-surfing window than a paddle-surfing one with that setup.
The entire second week is a tease: plenty of swell in the water, but always getting chopped up by the wind. It’s a frustrating one. Mark your calendar for that Monday morning on the 3rd.
Rusty.
Short Range ForecastModerate rain (total 18mm), heaviest on Sun night. Warm (max 25°C on Sat afternoon, min 25°C on Sat afternoon). Mainly strong winds. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Tue afternoon. Warm (max 25°C on Tue afternoon, min 25°C on Tue afternoon). Mainly fresh winds. | |||||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | ||||||||||||||
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) | SSW 14 | SE 8 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 15 | SSW 15 | SW 18 | SSW 17 | SSW 17 | SSW 16 |
Wave Graph | ||||||||||||||||||||
602 | 948 | 1147 | 1202 | 1174 | 840 | 699 | 560 | 505 | 465 | 537 | 647 | 653 | 427 | 880 | 857 | 703 | 1146 | 952 | 1155 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:35PM1.36m | 7:20AM1.95m | 9:33PM1.50m | 8:28AM2.06m | 10:06PM1.65m | 9:17AM2.20m | 10:33PM1.80m | 9:56AM2.33m | 10:59PM1.95m | 10:31AM2.43m | 11:24PM2.09m | 11:03AM2.49m | 11:49PM2.22m | |||||||
Low Tide | 00:17AM1.26m | 2:58PM0.70m | 2:03AM1.21m | 3:40PM0.54m | 3:05AM1.09m | 4:12PM0.40m | 3:48AM0.95m | 4:41PM0.29m | 4:25AM0.82m | 5:08PM0.21m | 4:59AM0.71m | 5:34PM0.17m | ||||||||
— | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | |
6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | |
mm | — | 5 | 1 | 1 | 7 | 2 | — | 1 | 1 | 1 | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 23 | 22 | 24 | 22 | 22 | 21 | 22 | 21 | 23 | 23 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 15 | SSW 15 | SSW 14 | SSW 17 | SSW 17 | SSW 16 |
602 | 362 | 282 | 195 | 131 | 83 | 200 | 229 | 387 | 430 | 537 | 647 | 653 | 427 | 880 | 857 | 640 | 1146 | 952 | 1155 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | — | SW 24 | SSW 23 | SSW 16 | SW 20 | SSW 19 | SW 18 | SSW 13 | SSW 13 | SE 6 |
66 | 64 | 54 | 75 | 91 | 113 | 109 | 126 | 53 | 22 | — | 22 | 51 | 306 | 388 | 637 | 703 | 351 | 326 | 80 | |
Swell 3 Height (m) Direction Period (s) | — | — | NE 7 | NE 7 | SSW 19 | SW 18 | SSW 12 | NE 8 | — | — | — | — | — | SSW 21 | — | — | — | SW 24 | SSE 7 | SW 20 |
— | — | 2 | 2 | 36 | 79 | 56 | 3 | — | — | — | — | — | 178 | — | — | — | 22 | 41 | 312 | |
Wind waves Height (m) Direction Period (s) | SE 8 | SE 8 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | ESE 6 | — |
413 | 948 | 1147 | 1202 | 1174 | 840 | 699 | 560 | 505 | 465 | 407 | 342 | 332 | 268 | 268 | 221 | 168 | 118 | 60 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 35 | 44 | 35 | 89 | 141 | 173 | 173 | 35 | 115 | 173 | 153 | 89 | 173 | 9 | 35 | 35 | 8 | 8 | 8 | 8 |
Best forecast wave conditions in The Bukit - Bali | ||||||||||||||||||||
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 Green Ball Surf forecast
The above surf forecast table for Green Ball provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Green Ball can be found by selecting the local surf guide option on the grey menu. Our Green Ball 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 Ball) 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 Ball 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 Ball is 14 km (9 miles) from the city of Kuta. If you plan a holiday in The Bukit - Bali, look for hotels and other accommodation in Kuta. Kuta has rooms for a wide range of budgets as well as car hire and transport links.










