
Surf Forecasts:
Bali Bay (Glen Reef) surf forecast from 13 Sep 2026:
- Best quality surf: Saturday 19 Sep, 11AM (local time) - 5ft (1.6m), 12s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 15 Sep, 11PM (local time) - 10ft (3.0m), 15s period, WSW swell with 4,029 kJ wave energy.
- Next surfable swell (1★+): Saturday 19 Sep, 11AM (local time) - 5ft (1.6m), 12s period with SW swell.
Best Forecast Surf Conditions for Bali Bay (Glen Reef) this week:
The surf forecast for Bali Bay (Glen Reef) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 19) at 11AM. The primary swell is predicted to be 1.6m and 12s period with a secondary swell of 0.9m and 15s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Bali Bay (Glen Reef) in the next 16 days are 3.0m 15s and forecast to arrive on Tuesday (Sep 15) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Thursday (Sep 17) at 5AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Sat 19th Sep) | 5ft (1.6m) 12s |
| Best Surf | 11AM (Sat 19th Sep) | 5ft (1.6m) 12s |
| Most Powerful | 11PM (Tue 15th Sep) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for Bali Bay (Glen Reef) over the next 16 days.
The Lowdown
Alright, let’s get you the imperial version, mate.
The next couple of weeks are a mixed bag. There’s some real potential later on, but for the most part, you’re going to be fighting the wind here. The first real standout is a full week away, so don’t rush out the door just yet.
Right off the bat, Monday the 14th is pretty grim. We’ve got a 4ft SW groundswell (12 seconds) rolling in, but with a strong N wind howling at 16 mph, it’s just not happening. The water temp is sitting about average for this time of year.
Tuesday the 15th and Wednesday the 16th are messy. The swell is building—up to 7ft on Wednesday from the WSW with a nice 13-second period—but that wind stays fresh and cross. The wave energy is moderate on Tuesday (565), but it jumps up to strong on Wednesday (2528). Still, the wind just wrecks it.
We finally get a break in the weather on Saturday the 19th of September. This is the first real standout. Bali Bay (Glen Reef) is looking clean with a 5ft SW swell (12 seconds) and a light SE breeze at 6 mph. The combined energy is strong (1096). This is an intermediate reef break that is very consistent, so you can expect waves. It will be exposed to that NW swell window, but we’re getting SW swell, so it should wrap in nicely. The conditions are excellent for experienced surfers. It might get a little busy, so be ready to share.
Sunday the 20th is a step down—still decent 6ft SW swell but the wind picks up, making things a bit lumpy.
The next real standout is Thursday the 24th of September. We’ve got a 6ft swell shifting to the SSE with a shorter 8-second period, but the wind goes light offshore from the SE at 6 mph. That’s clean. The energy is moderate (730), but the conditions are expected to be very good. It’s a solid option.
Then, on Saturday the 27th and beyond, the swell gets huge—over 12ft from the SSW with a long 14-second period. The combined energy is extreme (over 4000). The wind and tide are favorable, but this is simply too big for this break. This is for experts only, and even then, it’s going to be a beast.
Looking all the way out to Tuesday the 29th of September, we finally get a glassy morning. A 6ft SW groundswell (12 seconds) with absolutely no wind. The energy is strong (1427). This is another excellent window for experienced surfers. It’s a long way out, but worth keeping an eye on.
So, to sum it up: mark your calendar for Saturday the 19th and Thursday the 24th. Those are your best bets for clean, rideable waves. The rest of the time, you’ll be fighting the breeze.
- Rusty
Short Range ForecastHeavy rain (total 33mm), heaviest during Tue night. Very mild (max 16°C on Mon morning, min 12°C on Tue night). Winds increasing (light winds from the SSE on Tue night, fresh winds from the SE by Wed afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Sat afternoon, min 13°C on Wed night). Winds decreasing (strong winds from the SSE on Thu afternoon, light winds from the SE by Sat morning). | ||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||
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 13 | SW 12 | NW 6 | NW 8 | NW 6 | SW 16 | WSW 14 | WSW 13 | WSW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 13 | SW 13 | SW 12 | SW 13 | SW 13 |
Wave Graph | |||||||||||||||||||
663 | 423 | 352 | 326 | 247 | 1001 | 3826 | 1752 | 799 | 865 | 1013 | 929 | 662 | 589 | 1179 | 1034 | 736 | 905 | 690 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off |
High Tide | 4:54AM1.67m | 5:08PM1.74m | 5:25AM1.58m | 5:38PM1.62m | 5:57AM1.48m | 6:09PM1.50m | 6:32AM1.36m | 6:43PM1.36m | 7:19AM1.25m | 7:33PM1.24m | 8:50AM1.17m | 9:28PM1.15m | |||||||
Low Tide | 10:48PM0.33m | 10:52AM0.38m | 11:17PM0.41m | 11:21AM0.48m | 11:46PM0.52m | 11:50AM0.60m | 00:18AM0.63m | 12:24PM0.73m | 00:57AM0.74m | 1:11PM0.85m | 2:06AM0.84m | 3:12PM0.95m | 4:29AM0.87m | ||||||
— | 6:48 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | |
6:36 | — | 6:36 | — | — | 6:37 | — | — | 6:37 | — | — | 6:38 | — | — | 6:38 | — | — | 6:39 | — | |
mm | 4 | — | — | 1 | — | — | 26 | 2 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 16 | 15 | 15 | 15 | 14 | 12 | 15 | 14 | 15 | 16 | 14 | 16 | 19 | 15 | 16 | 20 | 17 |
Feels °C | 13 | 12 | 11 | 11 | 11 | 8 | 8 | 6 | 7 | 5 | 7 | 7 | 6 | 8 | 11 | 7 | 14 | 18 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 16 | WSW 14 | WSW 13 | WSW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 13 | SW 13 | SW 12 | SW 13 | SW 13 |
663 | 423 | 268 | 250 | 168 | 1001 | 3826 | 1752 | 799 | 865 | 1013 | 929 | 662 | 589 | 1179 | 1034 | 736 | 905 | 690 | |
Swell 2 Height (m) Direction Period (s) | SSE 7 | SE 10 | SE 7 | — | SW 18 | SE 13 | NW 7 | SW 14 | SW 13 | W 13 | W 12 | W 12 | — | SW 15 | W 11 | SW 16 | SW 15 | — | — |
15 | 89 | 2 | — | 150 | 7 | 189 | 776 | 767 | 461 | 144 | 46 | — | 176 | 9 | 302 | 360 | — | — | |
Swell 3 Height (m) Direction Period (s) | SE 8 | — | SE 13 | — | ESE 13 | — | SW 14 | — | — | — | — | — | — | — | — | — | — | — | — |
17 | — | 6 | — | 17 | — | 447 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNW 4 | NNW 5 | NW 6 | NW 8 | NW 6 | NW 7 | — | — | S 7 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SE 6 | SE 6 | SE 6 | SE 6 |
18 | 72 | 352 | 326 | 247 | 476 | — | — | 396 | 223 | 176 | 254 | 166 | 154 | 284 | 147 | 156 | 293 | 137 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 17 | 72 | 181 | 81 | 190 | 234 | 4 | 50 | 183 | 50 | 144 | 183 | 183 | 24 | 143 | 4 | 0 | 4 | 0 |
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Information about the Bali Bay (Glen Reef) Surf forecast
The above surf forecast table for Bali Bay (Glen Reef) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Bali Bay (Glen Reef) can be found by selecting the local surf guide option on the grey menu. Our Bali Bay (Glen Reef) 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 (Bali Bay (Glen Reef)) 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 Bali Bay (Glen Reef) 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.










