
Surf Forecasts:
Boulders surf forecast from 13 Jul 2026:
- Most powerful swell: Saturday 18 Jul, 4AM (local time) - 11ft (3.5m), 9s period, SE swell with 1,774 kJ wave energy.
Best Forecast Surf Conditions for Boulders this week:
The most powerful waves expected at Boulders in the next 16 days are 3.5m 9s and forecast to arrive on Saturday (Jul 18) at 4AM. 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 | 4AM (Sat 18th Jul) | 11ft (3.5m) 9s |
Table - best surf conditions forecast for Boulders over the next 16 days.
Alright folks, Rusty here. Let’s have a look at what’s cooking for this stretch.
Honestly, the first week and a half is a write-off. We’re looking at a solid 9 days of pretty grim conditions starting Monday, July 13th. The wind is howling from the southeast, mostly cross-onshore, and the swell is just raw and messy. The water temp is 82°F, which is about normal for this time of year, so at least it’s warm while you’re getting battered. The wave energy is moderate in the early days, but climbs into strong territory by the 15th, with a short, choppy 8-second period that’s just no fun. This is a kite surfer’s playground, not a paddle surfer’s. The wind makes it a real battle.
We finally get a break in the weather on the 23rd. That’s Thursday morning. The wind swings to the north, blowing offshore at 16 mph, and the swell cleans up. It’s a small day, around 3 ft from the south, but with a clean, long period of 16 seconds. That’s a proper groundswell. The real standout window is Friday, July 24th. Let’s talk about Boulders.
Boulders is a consistent reef break, fairly exposed to the swell, and it handles a south-east direction best. On Friday morning, the 24th, it’s glassy. Zero wind. The swell is 4 ft from the southwest with a 13-second period, giving you a smooth, lined-up wave. The wave energy is moderate (935), but the quality is all in the delivery. By Friday afternoon, it picks up to 6 ft from the southwest, still glassy, with a touch more energy (1453). This is excellent for experienced surfers. The crowd can be an issue here sometimes, but on a day this clean, it’s worth the company. The offshore wind and glassy conditions are the major positives here.
It’s a short-lived window, though. The weekend rolls in on the 25th and the wind swings back onshore, making it choppy again. The swell holds size at 7 ft, but the quality drops. By the 26th and 27th, we’re back to a strong cross-shore wind and lumpy conditions, with the swell staying big (8 ft) from the south-east. The energy is high (over 2000), but the wind kills it.
The very end of the outlook, around the 28th, looks like a repeat of the messy stuff with fresh cross-onshore winds and a short period. So, if you’re going to paddle out, make it Friday the 24th. That’s the day.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Tue morning. Warm (max 25°C on Mon afternoon, min 23°C on Tue night). Mainly strong winds. | Days 5-7 Weather SummarySome drizzle, heaviest during Fri night. Warm (max 25°C on Thu night, min 24°C on Thu afternoon). Mainly strong winds. | ||||||||||||||||||||
Mon 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SW 16 | SW 17 | SW 15 | SW 16 | SSE 8 | SSE 8 | SSE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 13 |
Wave Graph | |||||||||||||||||||||
489 | 580 | 375 | 644 | 645 | 993 | 1018 | 916 | 941 | 844 | 1082 | 1033 | 865 | 1313 | 1414 | 1043 | 949 | 1670 | 1647 | 826 | 850 | |
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 | cross-on | cross | cross | cross | cross | cross |
High Tide | 5:42PM1.06m | 6:01AM1.28m | 6:38PM1.09m | 6:56AM1.29m | 7:32PM1.10m | 7:50AM1.27m | 8:27PM1.10m | 8:44AM1.22m | 9:21PM1.08m | 9:39AM1.15m | 10:16PM1.06m | 10:35AM1.07m | 11:12PM1.03m | 11:32AM0.98m | |||||||
Low Tide | 11:41PM0.06m | 12:29PM-0.04m | 00:36AM0.04m | 1:22PM-0.05m | 1:31AM0.05m | 2:14PM-0.02m | 2:26AM0.08m | 3:06PM0.02m | 3:22AM0.13m | 3:58PM0.09m | 4:20AM0.19m | 4:51PM0.16m | 5:20AM0.24m | ||||||||
— | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:50 | |
6:13 | — | — | 6:13 | — | — | 6:14 | — | — | 6:14 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — | 6:15 | |
mm | — | — | 1 | 1 | 2 | 2 | — | 3 | — | — | — | — | — | 1 | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 |
Feels °C | 23 | 23 | 22 | 21 | 20 | 18 | 18 | 19 | 18 | 18 | 20 | 19 | 20 | 19 | 19 | 20 | 20 | 19 | 19 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 17 | SW 15 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 20 | SE 19 | SSE 17 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 13 |
273 | 580 | 375 | 644 | 349 | 258 | 167 | 127 | 92 | 44 | 28 | 315 | 372 | 807 | 957 | 975 | 807 | 1670 | 1647 | 826 | 850 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 12 | SSW 11 | S 13 | S 12 | S 11 | SSW 14 | SSW 13 | SSW 12 | SW 21 | SW 20 | SW 14 | SW 19 | SW 18 | SW 16 | SW 15 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 |
489 | 161 | 164 | 316 | 171 | 94 | 70 | 59 | 50 | 72 | 64 | 29 | 278 | 614 | 589 | 380 | 560 | 411 | 353 | 273 | 284 | |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSW 11 | SW 11 | S 16 | SSW 16 | SSW 15 | SSW 10 | WNW 15 | WNW 14 | WNW 14 | S 14 | SE 16 | SW 14 | WNW 13 | NW 13 | SW 18 | W 13 | W 13 | W 13 | S 20 | S 16 |
115 | 128 | 72 | 135 | 85 | 72 | 11 | 21 | 20 | 20 | 16 | 66 | 51 | 17 | 7 | 81 | 3 | 3 | 3 | 30 | 139 | |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 5 | SE 6 | SE 6 | SSE 8 | SSE 8 | SSE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | ESE 8 | ESE 8 | E 8 | E 8 | ESE 8 | E 8 |
55 | 103 | 103 | 104 | 645 | 993 | 1018 | 916 | 941 | 844 | 1082 | 1033 | 865 | 1313 | 1414 | 1043 | 949 | 450 | 390 | 494 | 323 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 866 | 2204 | 2378 | 2390 | 1251 | 1245 | 2421 | 1245 | 1245 | 1245 | 1245 | 1245 | 1245 | 1245 | 1245 | 614 | 1245 | 1245 | 1252 | 1209 | 1209 |
Best forecast wave conditions in Upolu | |||||||||||||||||||||
Best forecast wave conditions in Samoa | |||||||||||||||||||||
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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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