Surf Forecasts:
Boulders surf forecast from 17 Sep 2026:
- Best quality surf: Friday 18 Sep, 4AM (local time) - 4.5ft (1.3m), 13s period, S swell with glassy winds.
- Most powerful swell: Wednesday 23 Sep, 4PM (local time) - 5.5ft (1.7m), 17s period, SW swell with 1,697 kJ wave energy.
- Next surfable swell (1★+): Friday 18 Sep, 4AM (local time) - 4.5ft (1.3m), 13s period with S swell.
Best Forecast Surf Conditions for Boulders this week:
The surf forecast for Boulders over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 18) at 4AM. The primary swell is predicted to be 1.3m and 13s period with a secondary swell of 1.5m and 7s. Another secondary swell of 1.7m and 7s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Boulders in the next 16 days are 1.7m 17s and forecast to arrive on Wednesday (Sep 23) at 4PM. 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+) | 4AM (Fri 18th Sep) | 4.5ft (1.3m) 13s |
| Best Surf | 4AM (Fri 18th Sep) | 4.5ft (1.3m) 13s |
| Most Powerful | 4PM (Wed 23rd Sep) | 5.5ft (1.7m) 17s |
Table - best surf conditions forecast for Boulders over the next 16 days.
Short Range ForecastHeavy rain (total 38mm), heaviest during Fri night. Warm (max 27°C on Sat morning, min 26°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 19mm), heaviest on Wed morning. Warm (max 28°C on Mon afternoon, min 24°C on Tue morning). Winds increasing (calm on Mon afternoon, fresh winds from the SE by Tue morning). | ||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | |||||||||||||||
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) | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | SW 15 | SW 17 | SW 15 | SW 14 | SW 13 | SW 15 | SW 16 | SW 17 | SW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 427 | 485 | 547 | 319 | 237 | 184 | 294 | 567 | 767 | 947 | 1006 | 551 | 620 | 745 | 1060 | 1486 | 1697 | 1453 | 1101 | 894 | 676 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross-on |
High Tide | 12:22PM0.76m | 00:39AM0.87m | 1:26PM0.76m | 1:40AM0.87m | 2:22PM0.78m | 2:32AM0.90m | 3:09PM0.81m | 3:17AM0.94m | 3:48PM0.87m | 3:57AM0.98m | 4:24PM0.92m | 4:34AM1.03m | 4:59PM0.98m | ||||||||
Low Tide | 6:08AM0.33m | 6:09PM0.39m | 7:16AM0.33m | 7:15PM0.39m | 8:15AM0.32m | 8:13PM0.37m | 9:03AM0.29m | 9:01PM0.34m | 9:42AM0.25m | 9:43PM0.29m | 10:17AM0.21m | 10:21PM0.25m | 10:50AM0.18m | 10:59PM0.20m | |||||||
 | |  | | | |  |  |  | |  | | | | | | | | | | | |
 | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — |
 | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — |
mm | 3 | 4 | 19 | 2 | 2 | 2 | 1 | — | 1 | 1 | — | 3 | 1 | 1 | 4 | 5 | 3 | 1 | — | — | 3 |
Temp °C | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 27 | 25 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 |
Feels °C | 28 | 28 | 28 | 29 | 30 | 29 | 30 | 30 | 28 | 30 | 31 | 31 | 25 | 27 | 26 | 26 | 26 | 25 | 27 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | S 12 | SE 7 | S 12 | SE 7 | SE 7 | ESE 7 | S 12 | S 12 | SW 15 | SW 14 | SW 13 | SW 12 | SW 11 | SW 11 | SW 16 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 14 |
| kJ | 427 | 183 | 547 | 162 | 128 | 96 | 294 | 289 | 767 | 947 | 1006 | 403 | 373 | 354 | 1060 | 1486 | 1697 | 1453 | 1101 | 894 | 676 |
Swell 2 Height (m) Direction Period (s) | SW 14 | S 12 | ESE 7 | S 12 | S 11 | S 11 | ESE 7 | SW 17 | SSE 11 | SSE 11 | SSE 11 | SW 15 | SW 16 | SW 17 | SE 8 | S 13 | SSW 12 | SSW 15 | SSW 14 | S 13 | S 12 |
| kJ | 336 | 485 | 88 | 319 | 237 | 184 | 73 | 567 | 167 | 173 | 138 | 551 | 620 | 745 | 82 | 87 | 119 | 754 | 636 | 582 | 439 |
Swell 3 Height (m) Direction Period (s) | NE 10 | SW 14 | SW 14 | SW 13 | SW 13 | SW 16 | SW 15 | ESE 7 | ESE 6 | E 7 | E 7 | E 6 | E 6 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SE 10 | SE 12 | SE 12 | SE 11 |
| kJ | 4 | 238 | 238 | 136 | 103 | 129 | 273 | 51 | 33 | 33 | 33 | 31 | 40 | 76 | 44 | 38 | 43 | 51 | 68 | 66 | 61 |
Wind waves Height (m) Direction Period (s) | SSE 7 | — | — | — | — | — | — | — | — | — | — | — | — | E 6 | E 7 | E 7 | E 7 | E 7 | E 6 | E 7 | ESE 7 |
| kJ | 282 | — | — | — | — | — | — | — | — | — | — | — | — | 65 | 131 | 120 | 120 | 92 | 84 | 70 | 73 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 62 | 62 | 0 | 96 | 0 | 0 | 0 | 0 | 62 | 0 | 0 | 105 | 577 | 105 | 62 | 62 | 62 | 866 | 62 | 62 | 866 |
Best forecast wave conditions in Upolu | |||||||||||||||||||||
Best forecast wave conditions in Samoa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
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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