Surf Forecasts:
Boulders surf forecast from 24 Aug 2026:
- Most powerful swell: Friday 28 Aug, 4AM (local time) - 10ft (3.0m), 9s period, ESE swell with 1,363 kJ wave energy.
Best Forecast Surf Conditions for Boulders this week:
The most powerful waves expected at Boulders in the next 16 days are 3.0m 9s and forecast to arrive on Friday (Aug 28) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (+13) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Fri 28th Aug) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Boulders over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s on the table for this stretch. We’re dialled into Boulders, a reef break that’s consistent and exposed to the right directions. The water’s sitting at 81°F, which is pretty much bang on average for this time of year – nothing weird going on there.
Right off the bat, I gotta be straight with you: the next few days are a write-off. Monday the 24th and Tuesday the 25th are a mess. We’ve got strong cross-onshore winds hitting 25 mph and the swell is all jumbled. The combined wave energy is moderate around 1192, but the quality is poor. Not worth paddling out. That rough run stretches through Wednesday and into Thursday morning, but Thursday afternoon shows a flicker of hope – swell jumps to 8ft from the ESE, cross-shore wind, but still lumpy. It’s marginal at best.
Friday the 28th and Saturday the 29th? Forget it. Strong winds, messy cross-chop, and the swell is too big for most at 10ft on Friday. That’s expert-only territory, and even then, the conditions are ugly.
Now, Sunday the 30th morning – this is where things start to turn. The wind swings cross-offshore, and for the first time it’s reading “clean.” Swell is 8ft from the ESE, combined energy strong at 1492. It’s still a bit marginal, but if you’re an advanced surfer, Sunday morning could offer a window. The break can pull in crowds sometimes, so expect company if it cleans up.
But the real standout? Monday the 31st. Monday morning sees lighter winds, and by the afternoon it’s glassy with a light breeze, cross-offshore, and clean. Swell drops to a more user-friendly 4ft from the E, period 9 seconds – not a long-period groundswell, but with those clean conditions, Boulders will be offering proper, well-shaped waves. Combined energy is moderate at 590, but the quality is what matters. This is the best session of the whole outlook, no contest. It’s not huge, but it will be fun and rideable for a range of surfers.
After that, we slide back into mediocrity. Tuesday the 1st of September through to the end of the window is mostly poor or marginal. Winds stay cross or cross-onshore, lumpy, and the swell bounces around but never really lines up properly. There’s a small bump on the 8th of September with 7ft from the S, period 14 seconds – that’s a proper groundswell, but the wind is cross-shore and moderate, so it’s messy. That late-period swell is best for the reef setup here, but only if the wind plays ball. It doesn't, really.
Bottom line: if you can wait, Monday the 31st is your day. Everything else is either blown out, too big, or just average. Keep an eye on Sunday morning too if you’re keen and can handle a bit of size and company.
– Rusty
Short Range ForecastLight rain (total 9mm), mostly falling on Mon night. Warm (max 26°C on Thu morning, min 24°C on Mon night). Mainly strong winds. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Thu night. Warm (max 27°C on Sun afternoon, min 25°C on Thu night). Mainly strong winds. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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) | SE 8 | SE 8 | ESE 8 | SE 8 | SSE 8 | SW 16 | SSE 10 | SE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 10 | ESE 10 | ESE 9 |
Wave Graph | |||||||||||||||||||||
783 | 636 | 491 | 555 | 333 | 508 | 589 | 769 | 1358 | 1361 | 1203 | 1121 | 942 | 921 | 1016 | 865 | 757 | 567 | 260 | 445 | 340 | |
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 | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 4:32AM0.99m | 5:01PM0.89m | 5:10AM1.03m | 5:36PM0.93m | 5:46AM1.06m | 6:12PM0.97m | 6:22AM1.08m | 6:47PM1.01m | 6:59AM1.08m | 7:24PM1.03m | 7:38AM1.07m | 8:03PM1.04m | 8:19AM1.03m | 8:45PM1.05m | |||||||
Low Tide | 10:57AM0.21m | 10:54PM0.25m | 11:31AM0.18m | 11:31PM0.22m | 12:04PM0.15m | 00:08AM0.19m | 12:38PM0.14m | 00:46AM0.18m | 1:13PM0.14m | 1:26AM0.18m | 1:49PM0.15m | 2:09AM0.18m | 2:29PM0.17m | 2:56AM0.20m | |||||||
6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | |
— | 6:21 | — | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | |
mm | 2 | — | 4 | — | — | — | — | — | 4 | 2 | — | — | — | — | — | — | — | — | — | 2 | 7 |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 |
Feels °C | 21 | 22 | 22 | 22 | 23 | 24 | 26 | 25 | 24 | 23 | 23 | 22 | 22 | 23 | 24 | 24 | 27 | 27 | 27 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | S 12 | S 12 | E 8 | SSE 8 | SSE 10 | SE 10 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SSW 19 | S 18 | S 16 | S 16 | ESE 9 | E 10 | ESE 10 | ESE 9 |
345 | 324 | 232 | 136 | 142 | 192 | 544 | 769 | 424 | 395 | 309 | 248 | 214 | 614 | 768 | 542 | 494 | 567 | 260 | 445 | 340 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 19 | SW 17 | SW 18 | SW 17 | SW 16 | SW 15 | SW 15 | S 14 | S 12 | S 13 | S 18 | SSW 20 | SW 14 | SW 14 | SW 13 | SW 13 | S 14 | SE 9 | S 13 | S 13 |
25 | 54 | 106 | 154 | 238 | 508 | 589 | 551 | 138 | 113 | 85 | 160 | 129 | 167 | 162 | 85 | 85 | 338 | 247 | 215 | 199 | |
Swell 3 Height (m) Direction Period (s) | SW 19 | SW 12 | SSE 16 | SSE 15 | S 11 | SSE 12 | SSW 16 | S 15 | N 12 | SSW 19 | SSW 19 | SSW 13 | SSW 12 | SE 15 | SSW 11 | — | SW 16 | SW 13 | S 13 | SW 14 | SW 13 |
57 | 24 | 50 | 21 | 63 | 111 | 91 | 119 | 3 | 73 | 122 | 55 | 51 | 9 | 11 | — | 10 | 62 | 229 | 74 | 61 | |
Wind waves Height (m) Direction Period (s) | SE 8 | SE 8 | ESE 8 | SE 8 | SSE 8 | E 8 | E 8 | E 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | — | — | — | — |
783 | 636 | 491 | 555 | 333 | 120 | 173 | 228 | 1358 | 1361 | 1203 | 1121 | 942 | 921 | 1016 | 865 | 757 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2421 | 1245 | 2421 | 1251 | 1245 | 2511 | 2479 | 1194 | 1194 | 1140 | 2421 | 1140 | 1140 | 1011 | 1011 | 1140 | 581 | 584 | 133 | 62 | 62 |
Best forecast wave conditions in Upolu | |||||||||||||||||||||
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Information about the Boulders Surf forecast
The above surf forecast table for Boulders provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Boulders can be found by selecting the local surf guide option on the grey menu. Our Boulders 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 (Boulders) 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 Boulders 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.
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