Big Beach Surf Break

Lat Long: 20.63° N 156.45° W

Big Beach Surf Forecast and Surf Report

Issued: 1 am 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big Beach sea temperature is
26.6° C
0.5° 

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 21 Jul 2026:

  • Best quality surf: Wednesday 22 Jul, 8AM (local time) - 2ft (0.6m), 24s period, SSW swell with offshore winds.
  • Most powerful swell: Saturday 25 Jul, 5PM (local time) - 3.5ft (1.0m), 18s period, SSW swell with 670 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 21 Jul, 11AM (local time) - 3ft (0.9m), 14s 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 (Jul 21) at 11AM. The primary swell is predicted to be 0.9m and 14s period with a secondary swell of 0.4m 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 1.0m 18s and forecast to arrive on Saturday (Jul 25) at 5PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Friday (Jul 24) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Tue 21st Jul)3ft (0.9m) 14s
Best Surf 8AM (Wed 22nd Jul)2ft (0.6m) 24s
Most Powerful 5PM (Sat 25th Jul)3.5ft (1.0m) 18s

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


The Lowdown

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

We’re starting out with a bit of a slow cooker, not a whole lot of punch right away, but things look like they’ll build to a nice little window. The first real chance to get wet is on Tuesday, July 21st, but it’s pretty marginal. The standout window is gonna be from Saturday, July 25th, through Monday, July 27th. That’s your best bet.

The water temp is sitting at a warm 80°, which is pretty much where you’d expect it to be for this time of year, nothing freaky there.

Let’s break it down.

Big Beach is the only spot on the cards, and it’s a beginner-friendly, very consistent stretch of sand. It’s fairly exposed to the swell, and the optimum direction is from the WSW.

We start on Tuesday, July 21st. The morning has a 3ft south swell, with a 14-second period. That’s a long-period groundswell, which will bring some good energy but long waits between sets. The wind is a light ENE cross-off, so it’ll be clean. The combined energy is moderate, sitting at 393. The afternoon gets a bit windier, 12 mph from the east, and the rain showers might put a damper on things. This day is more of a paddle-out and see if it’s holding.

Wednesday, July 22nd, and Thursday, July 23rd are similar. Clean, cross-off winds, but the swell drops to 2ft to 3ft from the SSW. The period is still long, 20 to 24 seconds, so plenty of energy but the size is lacking. The combined energy is moderate to strong (562 to 750). It’s rideable, but you’ll be working for it.

Friday, July 24th, is more of the same. 3ft to 3ft SSW swell, 17 to 18-second period, and clean cross-off winds. The combined energy is strong (864 in the afternoon). Still not a standout, but the consistency is there.

Now, here’s where it gets good. Saturday, July 25th. Morning is clear, with a light 6 mph ENE offshore wind. The swell is 3ft from the SSW, 19-second period, and the combined energy is strong at 786. The afternoon? Even better. The wind swings to a gentle ENE offshore at 9 mph, and the swell bumps up to 3ft from the SSW, 18-second period. It’s clean, has some push, and is the best we’ve seen. This is your best day.

Sunday, July 26th, keeps that offshore flow going. Morning has a 3ft SSW swell at 16 seconds, with a moderate NE offshore. It’s still good, but the wind picks up a bit. The afternoon holds at 3ft with the same period. Worth getting out for.

Monday, July 27th, is still in the mix. Gentle to moderate offshore winds from the ENE and NE, with a 3ft SSW swell, 14 to 15-second period. The energy is dropping off (288 to 296), but it’s still a clean, fun size.

After that, things get flat and ordinary. From Tuesday, July 28th, through to Wednesday, August 5th, the swell drops to 1ft to 2ft, with periods getting shorter. There are a few glassy moments on the morning of the 28th and the 30th, and even a calm day on August 4th, but the waves are small and weak. The combined energy drops below 200, and by the end of the first week of August, it’s into the weak zone (113 to 128). It’s a long stretch of small, clean conditions, but not much to get excited about.

So, to sum it up: Saturday, July 25th is the stand-out. It’s got the best mix of a clean, offshore breeze, the biggest swell of the period at 3ft, and strong energy. The days immediately before and after are also good, but that Saturday is the one to circle. After that, it’s a long, slow fizzle.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Tue afternoon. Warm (max 27°C on Tue afternoon, min 24°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Fri morning. Warm (max 27°C on Fri morning, min 23°C on Sun night). Wind will be generally light.

Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
1
1
1
3
2
2
3
1
2
3
3
3
3
2
2
2
2
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
S
14
0.9
S
14
0.9
S
13
0.6
SSW
24
0.6
SSW
23
0.8
SSW
22
0.8
SSW
20
0.8
SSW
20
0.9
SSW
18
0.8
SSW
18
0.9
SSW
17
0.7
SSW
20
0.8
SSW
19
1
SSW
18
1
SSW
18
1
SSW
16
0.9
SSW
16
0.8
SSW
16
0.8
SSW
15
0.8
SSW
14
0.7
SSW
14
Wave Graph
Metric surfscale
Energy kJ
320
311
273
437
426
616
523
507
578
418
433
407
502
670
662
561
452
329
288
280
213
Wind (km/h)
10
ENE
20
E
20
E
20
ENE
25
ENE
15
NE
20
ENE
25
E
15
NE
20
E
20
ENE
20
NE
10
ENE
15
ENE
15
NE
20
NE
25
NE
15
NE
15
ENE
20
NE
15
NE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
off
cross-off
cross-off
off
off
off
off
off
off
off
off
off
off
High Tide
11:25AM0.37m
7:05PM0.36m
1:01PM0.42m
1:48PM0.47m
2:22PM0.51m
2:51PM0.54m
00:40AM0.25m
3:19PM0.56m
1:39AM0.27m
3:46PM0.59m
2:23AM0.29m
Low Tide
3:25PM0.25m
3:34AM0.06m
4:32AM0.05m
5:34AM0.03m
6:30AM0.02m
9:48PM0.17m
7:16AM-0.01m
9:54PM0.16m
7:56AM-0.02m
10:10PM0.15m
cloud
rain showers
rain showers
clear
clear
clear
clear
part cloud
clear
rain showers
clear
clear
clear
clear
rain showers
rain showers
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:56
5:56
5:56
5:56
5:56
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:07
7:07
7:07
7:07
7:06
7:06
7:06
 mm
1
1
1
1
2
Temp °C
26
27
26
26
27
25
27
27
25
27
27
25
27
27
25
24
26
24
26
27
24
Feels °C
28
29
27
26
27
25
26
26
24
26
26
24
28
26
25
24
26
23
26
27
23
  • Map Icons:
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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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