
Surf Forecasts:
Green Ball surf forecast from 18 Jul 2026:
- Most powerful swell: Monday 20 Jul, 11AM (local time) - 7ft (2.2m), 17s period, SW swell with 2,715 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 2.2m 17s and forecast to arrive on Monday (Jul 20) at 11AM. 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 | 11AM (Mon 20th Jul) | 7ft (2.2m) 17s |
Table - best surf conditions forecast for Green Ball over the next 16 days.
Short Range ForecastModerate rain (total 12mm), heaviest on Sun morning. Warm (max 26°C on Sat night, min 24°C on Mon night). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Tue afternoon. Warm (max 25°C on Tue afternoon, min 25°C on Tue afternoon). Mainly fresh winds. | |||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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 14 | SW 14 | SW 13 | SW 13 | SW 15 | SW 17 | SW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 16 | SSW 16 |
Wave Graph | ||||||||||||||||||||
833 | 776 | 637 | 618 | 1506 | 2715 | 2291 | 2096 | 1244 | 1095 | 721 | 528 | 346 | 286 | 487 | 508 | 286 | 421 | 390 | 950 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 1:06AM2.41m | 1:05PM2.38m | 1:42AM2.42m | 1:44PM2.14m | 2:18AM2.36m | 2:24PM1.89m | 2:54AM2.26m | 3:07PM1.65m | 3:36AM2.14m | 4:06PM1.43m | 4:30AM2.01m | 6:05PM1.30m | ||||||||
Low Tide | 6:48PM0.13m | 7:05AM0.50m | 7:20PM0.28m | 7:50AM0.57m | 7:51PM0.45m | 8:37AM0.68m | 8:21PM0.64m | 9:28AM0.79m | 8:51PM0.83m | 10:33AM0.89m | 9:24PM1.00m | 12:06PM0.93m | 10:17PM1.16m | |||||||
— | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | |
6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | |
mm | — | 3 | 3 | 1 | 1 | — | — | 2 | 2 | 2 | — | — | — | — | — | — | 1 | — | — | 1 |
Temp °C | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 24 | 26 | 24 | 24 | 23 | 22 | 23 | 23 | 23 | 23 | 22 | 23 | 21 | 21 | 22 | 22 | 21 | 21 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 13 | SW 15 | SW 17 | SW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 16 |
833 | 776 | 637 | 618 | 1506 | 2715 | 2291 | 2096 | 1244 | 1095 | 721 | 528 | 346 | 286 | 487 | 508 | 286 | 421 | 257 | 950 | |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 21 | SW 17 | — | — | — | — | — | SW 20 | SSW 18 | SSW 17 | SSW 16 | SSW 15 | — | SW 18 | SSW 10 | S 18 | SSW 16 | WSW 18 |
— | — | 87 | 288 | — | — | — | — | — | 15 | 121 | 108 | 223 | 196 | — | 49 | 74 | 156 | 390 | 31 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 19 | — | — | SSW 18 | SW 16 | SSW 9 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | 15 | — | — | 33 | 40 | 45 | — | |
Wind waves Height (m) Direction Period (s) | SE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 6 | SE 6 | SE 6 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 |
233 | 244 | 244 | 311 | 382 | 301 | 210 | 144 | 155 | 202 | 202 | 209 | 255 | 240 | 213 | 195 | 247 | 316 | 219 | 292 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 9 | 12 | 35 | 35 | 36 | 35 | 35 | 8 | 36 | 35 | 35 | 35 | 35 | 8 | 8 | 35 | 8 | 36 | 35 | 16 |
Best forecast wave conditions in The Bukit - Bali | ||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
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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.










