Big Beach Surf Break

Lat Long: 20.63° N 156.45° W

Big Beach Surf Forecast and Surf Report

Issued: 1 pm 01 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 2 Sep 2026:

  • Best quality surf: Tuesday 8 Sep, 11AM (local time) - 5ft (1.5m), 14s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 8 Sep, 5PM (local time) - 6.5ft (2.0m), 14s period, WSW swell with 1,579 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 1 Sep, 11PM (local time) - 2.5ft (0.8m), 17s period with S 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 Tuesday (Sep 01) at 11PM. The primary swell is predicted to be 0.8m and 17s period with a secondary swell of 0.4m and 12s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Big Beach in the next 16 days are 2.0m 14s and forecast to arrive on Tuesday (Sep 08) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 7s period and expected on Thursday (Sep 03) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Tue 1st Sep)2.5ft (0.8m) 17s
Best Surf11AM (Tue 8th Sep)5ft (1.5m) 14s
Most Powerful 5PM (Tue 8th Sep)6.5ft (2.0m) 14s

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


The Lowdown

Alright, Rusty here. Let’s talk about the only show in town for this stretch: Big Beach.

Overall, it’s a bit of a slow burner. The first few days are pretty marginal, and we don't really see much happening until we get into the back half of the first week and the second week. The real standout window is around September 8th, but there’s a decent run of clean conditions later on for those patient enough to wait.

We kick off with a small, long-period south swell on Tuesday the 1st. Only 2ft of swell with an 18-second period. The combined wave energy is weak (413). Winds are cross-offshore from the ENE at 12 mph, so it’s clean, but the swell is too small to get excited about. Same story on Wednesday the 2nd—still small at 3ft, still clean, but the wind picks up to 16 mph. Thursday the 3rd brings a slight drop in size back to 2ft, but the afternoon shifts to a clean 4ft south swell with offshore winds.

Friday the 4th is when things start to perk up. The swell builds to 5ft from the south (11-second period) with moderate wave energy (514 in the morning, 532 in the afternoon). Winds go offshore in the afternoon, and it’s described as good surf conditions. That’s more like it.

Saturday the 5th is the first real highlight before the big one. Clean 4ft to 5ft swell from the SSW with a 12-second period, light offshore winds in the morning from the NE, and the energy bumps up to 543-571. This is a solid, clean day.

Sunday the 6th continues the clean run but the swell starts to fade. Still, the afternoon has a surprise: a 2ft swell with a very long 19-second period and moderate energy (487). A small but clean groundswell.

Now, the standout. Monday the 7th of September is a building swell, but Tuesday the 8th of September is the pick of the entire forecast. The swell jumps to 5ft in the morning and 7ft in the afternoon from the WSW, with a 14-second period. The combined wave energy is absolutely pumping—1471 in the morning and 2379 in the afternoon. That is serious wave energy. Winds are light cross-offshore from the ESE. This is excellent surf, but at 7ft with that power, it’s only for experienced surfers. The rest of us will be watching from the sand. It’s a beach break, so that long period groundswell might stand it up a bit straight, but with that much energy, there will be bombs. The water temp is a warm 81°, right about average for this time of year.

After that peak, the swell drops back quickly. Wednesday the 9th is still clean but much smaller at 3ft. It fades out through the rest of the week with small, clean waves and light winds.

Then we hit a real lull. From roughly the 11th through the 14th, the swell is tiny, mostly under 2ft. The wave energy drops below 200. It’s glassy at times, but there’s just nothing to ride.

But wait. There’s a late surprise. Monday the 15th of September is worth a mention. A clean 3ft southwest swell rolls in with a very long 21-second period and the energy jumps back up to a solid 706. The wind is glassy in the morning—dead calm. That’s a beautiful setup for a clean, lined-up wave. The 16th holds similar 3ft swell from the SSW with lighter winds.

So, if you want the best, you’re looking at Saturday the 5th of September for a solid, clean day everyone can enjoy, or Tuesday the 8th of September for the experts. The late glassy groundswell on the 15th is a hidden gem if you like long-period lines.

Stay salty,
Rusty.

Short Range Forecast

Mostly dry. Warm (max 28°C on Tue afternoon, min 25°C on Wed night). Mainly fresh winds.

Days 5-7 Weather Summary

Some drizzle, heaviest during Sun night. Warm (max 28°C on Sat morning, min 25°C on Fri night). Wind will be generally light.

Tue
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
1
0
2
1
1
2
1
2
2
2
2
2
2
2
2
3
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
S
18
0.9
S
17
0.9
S
16
0.9
S
16
0.8
S
15
0.7
S
15
1.1
S
13
1.3
S
13
1.4
S
11
1.4
S
11
1.5
SSW
11
1.3
SSW
12
1.4
SSW
12
1.1
SW
11
1.1
SW
11
0.6
SSW
19
0.8
SSW
18
1
SSW
17
1
SSW
16
1
SSW
15
Wave Graph
Metric surfscale
Energy kJ
311
443
422
391
275
209
423
546
502
492
540
475
509
263
258
271
432
596
582
494
Wind (km/h)
20
ENE
15
ENE
25
ENE
30
E
20
NE
25
ENE
25
ENE
25
NE
20
ENE
25
ENE
15
NE
10
NE
15
NE
10
NNE
10
ENE
15
ENE
10
ENE
10
ESE
10
ENE
10
E
Wind State
cross-off
off
cross-off
cross-off
off
cross-off
off
off
cross-off
off
off
off
off
off
off
off
off
cross-off
off
cross-off
High Tide
5:21PM0.42m
7:37AM0.45m
5:16PM0.38m
9:24AM0.45m
11:43AM0.48m
12:54PM0.54m
1:38PM0.58m
00:39AM0.26m
2:12PM0.61m
1:38AM0.31m
Low Tide
00:08AM0.02m
12:45PM0.23m
00:47AM0.03m
1:46AM0.04m
3:29AM0.05m
5:16AM0.04m
8:52PM0.15m
6:28AM0.02m
8:53PM0.13m
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
rain showers
part cloud
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:09
6:09
6:09
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:40
6:39
6:38
6:37
6:37
6:37
6:36
 mm
1
2
Temp °C
28
27
27
28
26
28
28
25
27
27
26
28
27
26
28
28
26
27
27
26
Feels °C
29
28
27
26
24
27
27
23
26
25
25
30
29
28
31
30
28
30
30
28
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  • 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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