Surf Forecasts:
Boulders surf forecast from 3 Sep 2026:
- Most powerful swell: Friday 4 Sep, 7PM (local time) - 6ft (1.9m), 15s period, S swell with 1,611 kJ wave energy.
Best Forecast Surf Conditions for Boulders this week:
The most powerful waves expected at Boulders in the next 16 days are 1.9m 15s and forecast to arrive on Friday (Sep 04) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (+13) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Fri 4th Sep) | 6ft (1.9m) 15s |
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 offer.
Well, to be honest, looking at the next couple of weeks, we've got a bit of a slow start. The forecast for Boulders shows some solid groundswell energy rolling through, but the wind is going to be a real pain in the neck for most of it. We're looking at a lot of lumpy, cross-shore chop and onshore slop, so the first real window of quality won't show up for a while. The water temp is sitting at a pretty standard 81°F, so nothing unusual there for this time of year.
The best bet for the entire period is going to be the afternoon of Tuesday the 15th of September. The swell is a clean 4ft from the SW on a 16-second period, which is proper long-period groundswell. That kind of energy will wrap in nicely. The combined energy is a solid 1672, and with a light 9 mph cross-offshore breeze from the NE, the conditions are going to be glassy and clean. This is a rare standout in a pretty average run, and it's excellent for experienced surfers wanting the reef to itself. The swell direction is right in the pocket of what Boulders likes, and with that offshore wind, it'll be a session to remember. Keep in mind, though, that this is a consistent break, so the lineup might have a few others on it.
Earlier than that, you could chance the morning of Tuesday the 8th of September. You've got a 5ft SW swell with a 16-second period, and a clean cross-offshore wind. The combined energy is 1266, and it's a clean window, but overall the wave quality is just a touch more marginal than that Tuesday the 15th.
After that Tuesday the 15th, the forecast falls away again into more messy onshore conditions, so really, that Tuesday afternoon is the one to circle on the calendar. The week before that is a write-off with strong winds.
Honestly, if you're not locked into that Tuesday the 15th afternoon window, the setup for much of the rest of the time is pretty rough. A reef like Boulders with a good swell but strong cross/onshore winds just turns into a washing machine. If that cleaner session isn't for you, most of this period is more interesting for the kite crew than for paddle surfing.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Thu morning. Warm (max 26°C on Thu morning, min 25°C on Thu night). Mainly strong winds. | Days 4-6 Weather SummarySome drizzle, heaviest during Tue night. Warm (max 27°C on Mon night, min 25°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
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) | SW 15 | ESE 7 | SW 15 | S 17 | S 16 | S 14 | S 16 | S 15 | S 14 | S 13 | S 13 | SW 17 | SW 16 | SW 16 | SW 15 | SW 16 | SW 15 | SW 15 | SW 16 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 465 | 472 | 551 | 946 | 1589 | 925 | 1459 | 978 | 674 | 427 | 345 | 567 | 502 | 489 | 574 | 976 | 915 | 1062 | 1065 | 1039 | 783 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-on | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross | cross | cross | cross | cross-off | cross | cross-on | cross | cross | cross |
High Tide | 11:02AM0.89m | 11:33PM1.01m | 12:14PM0.87m | 00:42AM1.02m | 1:26PM0.88m | 1:51AM1.06m | 2:34PM0.92m | 2:54AM1.11m | 3:33PM0.98m | 3:51AM1.16m | 4:26PM1.04m | 4:44AM1.20m | 5:15PM1.10m | ||||||||
Low Tide | 5:02PM0.26m | 5:59AM0.23m | 6:11PM0.27m | 7:13AM0.21m | 7:23PM0.25m | 8:23AM0.16m | 8:32PM0.21m | 9:24AM0.11m | 9:33PM0.16m | 10:17AM0.06m | 10:28PM0.11m | 11:06AM0.03m | 11:18PM0.08m | ||||||||
 |  |  |  | |  | | | | | | | | | | | | | | |  | |
 | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — |
 | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — |
mm | 2 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 26 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 26 | 26 | 27 | 26 |
Feels °C | 25 | 23 | 23 | 22 | 24 | 24 | 25 | 26 | 26 | 25 | 26 | 25 | 24 | 25 | 26 | 25 | 26 | 26 | 26 | 28 | 26 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | S 17 | S 16 | S 14 | S 16 | S 15 | S 14 | S 13 | S 13 | SW 17 | SW 16 | SW 16 | SW 15 | SW 16 | SW 15 | SW 15 | SW 16 | SW 16 | SW 16 |
| kJ | 465 | 435 | 551 | 946 | 1589 | 925 | 1459 | 978 | 674 | 427 | 345 | 567 | 502 | 489 | 574 | 976 | 915 | 1062 | 1065 | 1039 | 783 |
Swell 2 Height (m) Direction Period (s) | SW 10 | S 15 | S 14 | SW 15 | SW 15 | S 18 | SW 14 | SW 15 | SW 14 | SW 14 | SW 14 | S 12 | S 12 | S 12 | S 11 | S 10 | NE 12 | SSE 7 | NE 13 | E 9 | E 9 |
| kJ | 45 | 170 | 372 | 424 | 418 | 620 | 459 | 525 | 368 | 228 | 238 | 243 | 177 | 98 | 59 | 33 | 39 | 51 | 27 | 215 | 119 |
Swell 3 Height (m) Direction Period (s) | S 16 | SW 9 | SSW 21 | SSW 12 | SW 19 | SW 14 | E 18 | E 16 | NE 16 | SW 18 | SW 18 | ENE 14 | ENE 14 | ENE 13 | NE 13 | NE 13 | NNE 13 | ENE 12 | NNE 12 | NE 13 | SE 8 |
| kJ | 137 | 41 | 44 | 189 | 96 | 346 | 6 | 5 | 10 | 168 | 157 | 20 | 18 | 17 | 45 | 25 | 17 | 14 | 14 | 28 | 54 |
Wind waves Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | ESE 8 | E 8 | ESE 6 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 7 | E 9 | ESE 9 | — | — |
| kJ | 362 | 472 | 444 | 340 | 322 | 365 | 350 | 277 | 270 | 235 | 195 | 182 | 255 | 258 | 218 | 232 | 263 | 196 | 283 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2244 | 1194 | 1245 | 1245 | 577 | 577 | 105 | 577 | 105 | 584 | 584 | 1251 | 1140 | 62 | 62 | 62 | 108 | 577 | 62 | 62 | 105 |
Best forecast wave conditions in Upolu | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Boulders surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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