Big Beach Surf Break

Lat Long: 20.63° N 156.45° W

Big Beach Surf Forecast and Surf Report

Issued: 7 pm 06 Sep 2026 (local time)

Forecast update in  hr  min

Today's Big Beach sea temperature is
27.0°C
0.2° 

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


Big Beach surf forecast from 7 Sep 2026:

  • Best quality surf: Monday 7 Sep, 11PM (local time) - 7.5ft (2.3m), 14s period, SW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 8 Sep, 2AM (local time) - 10ft (3.0m), 13s period, SW swell with 2,653 kJ wave energy.
  • Next surfable swell (1★+): Monday 7 Sep, 5AM (local time) - 4.5ft (1.4m), 12s period with SW swell.

Best Forecast Surf Conditions for Big Beach this week:

The surf forecast for Big Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 07) at 5AM. The primary swell is predicted to be 1.4m and 12s period with a secondary swell of 0.9m and 17s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Big Beach in the next 16 days are 3.0m 13s and forecast to arrive on Tuesday (Sep 08) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 6s period and expected on Monday (Sep 07) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Mon 7th Sep)4.5ft (1.4m) 12s
Best Surf11PM (Mon 7th Sep)7.5ft (2.3m) 14s
Most Powerful 2AM (Tue 8th Sep)10ft (3.0m) 13s

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


The Lowdown

Alright, Rusty here. Let’s have a look at what’s cookin’ for the next couple weeks.

Honestly, mate, it’s a bit of a quiet stretch ahead at Big Beach. We’ve got some swell on the way, but the consistency and quality are gonna leave you wanting more. The standout window looks to be around Monday afternoon, the 7th of September, through to Tuesday morning, the 8th, where we see the biggest bump of the period.

Monday morning starts off modest with a 3ft SSW swell, 17-second period – that’s a long-period groundswell, which will bring some grunt but can be a bit tricky at a beach break like this. Still, the wind is a light cross-off from the east, keeping things clean. The combined swell energy is moderate at 1020. By Monday afternoon, that swell jumps to 5ft from the SW, with a 14-second period and the energy ramps up to 1623 – that’s solid, moderate-to-strong energy. Offshore wind from the east-southeast will keep the face tidy. This is likely the best session of the whole run: solid shoulder-high waves, clean, and with that longer period, the paddle out should be manageable.

Tuesday morning sees the biggest swell of the forecast – 8ft from the SW, 11-second period, energy at 1622. But here’s the catch: the wind swings onshore from the south, and it’s gonna be choppy as all heck. That’s expert territory only; too big and messy for most. Tuesday afternoon drops back down to 3ft, but still with cross-onshore wind, so it’s not great.

From Wednesday the 9th onward, the swell fades fast. We’re looking at wave heights between 3ft and 0.7ft for the rest of the run, with energy readings dropping from 401 down to just 91 by Sunday the 13th. The wind is mostly cross-off or offshore, so it’ll be clean, but the waves are tiny – barely knee-high most days. The period stays long through to the 10th and 11th (16-18 seconds), so you might get a rare, clean little waist-high roller, but it’ll be inconsistent.

There’s a slight tick-up around Monday the 14th – the morning is glassy, but the swell is only 0.7ft with a very long 23-second period. That’s more of a lake than the ocean. The afternoon improves a bit to 2ft from the SW, 22-second period, with light offshore wind, and the energy hits 307. That’s a small, clean, long-period groundswell – fun for a longboard on the right tide, but nothing to get excited about.

The last real chance for anything rideable comes around the 16th to 20th of September, with small waves in the 2ft to 3ft range, periods between 14 and 18 seconds, and light to gentle cross-off breezes. The energy stays between 290 and 620 – that’s weak to moderate. Clean, but small.

Crowds at Big Beach are sometimes an issue, so on those rare clean days with a pulse, expect company. The water temperature is about average for this time of year.

So, the takeaway: Monday afternoon, 7th September, is your best bet – 5ft SW groundswell, clean with cross-off wind, moderate energy. It’s the only real standout. Tuesday morning is too big and messy for most. After that, it’s a long stretch of clean but tiny waves, ideal for a log or a paddle, but not for any real juice. Forecasts can change, so keep an eye on it.

Rusty.

Short Range Forecast

Light rain (total 7mm), mostly falling on Sun night. Warm (max 28°C on Mon afternoon, min 26°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Wed night, min 24°C on Thu night). Wind will be generally light.

Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
3
3
1
1
1
1
2
0
1
1
2
1
1
1
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
SW
14
1
SSW
17
1.6
SW
14
3
SW
13
2.3
SW
11
1.6
SW
9
0.9
SSW
14
0.9
SSW
14
0.9
SSW
13
0.7
SSW
13
0.5
SW
16
0.5
SW
18
0.6
SW
16
0.6
SW
16
0.6
SW
15
0.6
SW
15
0.6
SW
16
0.5
SW
14
0.5
SW
13
Wave Graph
Metric surfscale
Energy kJ
872
603
975
2653
1154
449
356
331
257
176
133
155
214
208
183
178
193
91
88
Wind (km/h)
20
E
20
E
20
ESE
15
SSE
20
S
15
S
10
SE
20
ESE
15
E
15
ENE
20
ENE
20
ENE
15
NE
10
ENE
10
ENE
10
NE
5
ESE
10
ENE
10
ENE
Wind State
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross
cross-off
cross-off
cross-off
off
off
off
cross-off
off
off
cross-off
off
off
High Tide
00:39AM0.26m
2:12PM0.61m
1:38AM0.31m
2:43PM0.62m
2:23AM0.37m
3:10PM0.62m
3:05AM0.43m
3:35PM0.60m
3:44AM0.47m
3:58PM0.56m
4:23AM0.50m
4:18PM0.52m
Low Tide
8:52PM0.15m
6:28AM0.02m
8:53PM0.13m
7:22AM0.00m
9:06PM0.11m
8:08AM-0.00m
9:24PM0.09m
8:50AM0.01m
9:44PM0.06m
9:29AM0.04m
10:04PM0.04m
10:07AM0.07m
10:25PM0.03m
thunderstorm
part cloud
part cloud
clear
rain showers
clear
clear
rain showers
rain showers
part cloud
part cloud
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:11
6:11
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:36
6:35
6:34
6:32
6:31
6:30
 mm
3
1
1
2
Temp °C
27
27
28
28
28
28
27
28
28
27
27
27
25
27
27
25
26
26
26
Feels °C
28
28
29
30
30
30
31
30
31
30
28
28
25
28
28
26
29
28
28
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Big Beach Surf forecast

The above surf forecast table for Big Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Big Beach can be found by selecting the local surf guide option on the grey menu. Our Big Beach 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 (Big Beach) 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 Big Beach 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 vacation in Maui? If you are looking for accommodation near Big Beach, camping, hotels and condos and appartments in Maui, consider staying in Kihei which is 17 km (11 miles) away. Other places in and around Maui where you can find information about places to rent, and car hire include Wailuku which is 28 km (17 miles) away, Kahului, Lanai - Lanai and Kaunakakai - Molokai.

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