Boulders Surf Break

Lat Long: 14.04° S 171.79° W

Boulders Surf Forecast and Surf Report

Issued: 12 pm 11 Sep 2026 (local time)

Forecast update in  hr  min

Today's Boulders sea temperature is
27.2°C
0.2° 

Boulders surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Boulders surf forecast from 11 Sep 2026:

  • Best quality surf: Thursday 17 Sep, 1PM (local time) - 3.5ft (1.1m), 15s period, SW swell with cross-offshore winds.
  • Most powerful swell: Monday 14 Sep, 7AM (local time) - 8ft (2.5m), 18s period, SSW swell with 3,903 kJ wave energy.
  • Next surfable swell (1★+): Saturday 12 Sep, 4AM (local time) - 3ft (0.9m), 12s period with SW 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 Saturday (Sep 12) at 4AM. The primary swell is predicted to be 0.9m and 12s period with a secondary swell of 0.8m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Boulders in the next 16 days are 2.5m 18s and forecast to arrive on Monday (Sep 14) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 6s period and expected on Thursday (Sep 17) at 4AM.

Wave TypeTime (+13) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sat 12th Sep)3ft (0.9m) 12s
Best Surf 1PM (Thu 17th Sep)3.5ft (1.1m) 15s
Most Powerful 7AM (Mon 14th Sep)8ft (2.5m) 18s

Table - best surf conditions forecast for Boulders over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let's have a look at what's on the cards for the next couple of weeks.

We've got one spot that's our focus: Boulders. It's a consistent reef break that's fairly exposed to the swell, so it'll be working a lot of the time, but the conditions are going to be a real mixed bag.

Right now, we're looking at a few days of poor conditions to start. The first real chance of something decent comes up on Saturday the 12th. The morning session is the pick, with clean conditions and a gentle cross-offshore breeze tidying things up. We've got a modest 3ft SW swell with a period of 11 seconds, giving the waves a bit of shape. The combined swell energy is moderate (415), so nothing too crazy. The water's a beautiful 81°, which is pretty much bang on average for this time of year, so no complaints there.

After that, the Monday the 14th kicks off a run of bigger, cleaner swell, but it's a bit of a double-edged sword. We get some solid 5ft to 5.3ft SW swell, with the period stretching out to a nice 16 to 17 seconds – that's proper groundswell. The energy ramps up strong, peaking at over 3000 on Monday (3008). The problem is, the wind is going to be a nuisance for most of that week, making it choppy and messy. However, from Tuesday the 15th through to Thursday the 17th, we see a shift to a cross-offshore breeze, which will keep the waves clean. These waves are getting into the 5.3ft to 7.2ft range, so it's really for the more experienced crew – beginners will find it a handful. The long period (15-17 seconds) means the sets will be powerful and spaced out, which Boulders, being a reef, should handle beautifully.

The standout session, and the one I'd be circling on the calendar, is Tuesday the 15th both morning and afternoon. You've got a solid 5.3ft SW swell packing a punch (1906 combined energy) and that lovely cross-offshore wind. The waves should be clean, powerful, and holding shape. It's a solid choice. A close second is Wednesday the 16th morning, with a similar 5ft SW swell and the same clean wind.

Unfortunately, from Friday the 18th onward, things go downhill with poor surf quality and onshore winds returning. There's a long gap of poor conditions that runs right through to the end of the forecast window, so that window from the 12th to the 17th is where you want to be.

Short Range Forecast

Moderate rain (total 13mm), heaviest on Sun night. Warm (max 27°C on Fri night, min 25°C on Sun night). Mainly fresh winds.

Days 4-6 Weather Summary

Heavy rain (total 24mm), heaviest during Mon morning. Warm (max 27°C on Tue afternoon, min 25°C on Mon morning). Wind will be generally light.

Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
1
0
0
0
0
0
0
2
2
2
2
2
3
3
3
2
3
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
SW
14
1
SW
13
0.9
SW
12
0.9
SW
11
0.6
SW
18
0.5
SW
22
1
SW
20
1.5
SW
19
1.8
SW
18
2.5
SSW
17
2.2
SW
17
2
SSW
16
1.6
SW
16
1.8
SW
17
1.7
SW
17
1.6
SSW
16
1.4
SW
16
1.3
SW
16
1.1
SW
15
1.1
SW
15
1
SW
15
Wave Graph
Metric surfscale
Energy kJ
384
331
244
202
197
255
761
1593
1947
3734
2590
2008
1384
1907
1697
1338
1001
803
589
479
429
Wind (km/h)
20
ESE
20
ESE
15
ENE
15
E
20
SE
20
SE
25
ESE
25
SE
25
ESE
30
ESE
25
ESE
20
E
25
ENE
25
E
20
E
25
ENE
15
ENE
15
E
15
E
10
ENE
15
SE
Wind State
cross-on
cross
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-off
cross
cross
cross-off
cross-off
cross
cross
cross-off
cross-on
High Tide
6:46PM1.15m
7:05AM1.16m
7:30PM1.14m
7:50AM1.10m
8:13PM1.11m
8:36AM1.02m
8:58PM1.06m
9:24AM0.94m
9:46PM1.00m
10:17AM0.86m
10:38PM0.94m
11:16AM0.80m
11:37PM0.89m
Low Tide
12:35PM0.03m
00:53AM0.07m
1:17PM0.07m
1:39AM0.10m
1:58PM0.12m
2:26AM0.15m
2:40PM0.19m
3:14AM0.20m
3:24PM0.25m
4:05AM0.26m
4:11PM0.32m
5:03AM0.30m
5:06PM0.36m
clear
part cloud
part cloud
part cloud
part cloud
thunderstorm
rain showers
light rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
rain showers
clear
clear
part cloud
thunderstorm
light rain
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:24
6:22
6:22
6:22
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:22
6:22
6:22
6:22
6:22
6:22
6:22
 mm
2
2
1
8
5
5
8
3
2
1
2
1
5
Temp °C
26
26
27
27
27
26
26
26
26
26
26
26
26
27
27
26
27
26
27
27
26
Feels °C
26
26
30
29
29
27
27
26
26
26
27
27
26
28
28
26
28
28
30
30
28
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Boulders:

join our community of surf reporters

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.

Are you planning a holiday in Otago? If you are looking for accommodation near Otago Peninsula - Boulder Beach, camping, hotels and holiday cottages in Otago, consider staying in Dunedin which is 9 km (6 miles) away.

Nearest locationNearest