Windmills Surf Break

Lat Long: 21.02° N 156.62° W

Windmills Surf Forecast and Surf Report

Issued: 1 am 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Windmills sea temperature is
26.7° C
0.1° 

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


Windmills surf forecast from 21 Aug 2026:

  • Most powerful swell: Tuesday 25 Aug, 5AM (local time) - 4.5ft (1.4m), 8s period, ENE swell with 232 kJ wave energy.

Best Forecast Surf Conditions for Windmills this week:

The most powerful waves expected at Windmills in the next 16 days are 1.4m 8s and forecast to arrive on Tuesday (Aug 25) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Saturday (Aug 22) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5AM (Tue 25th Aug)4.5ft (1.4m) 8s

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


The Lowdown

Alright folks, Rusty here. Let’s take a hard look at what’s on the table for Windmills over the next couple of weeks. I’ll be straight with you – it’s a rough stretch.

Right from the start, there’s nothing good to report. The whole 16-day window is a write-off for decent surf. We’re looking at a solid two-week gap where there’s no recommendation to paddle out. The forecast is a long, drawn-out run of poor surf conditions, with most days showing a mix of messy cross-shore wind and weak, short-period swell.

Kicking off Friday, August 21st, it’s a no-go. The morning brings a tiny 3 ft NE swell with a period of just 7 seconds, and the combined energy is a weak 102. The wind is a light cross-shore breeze, but the surf is just poor. The afternoon bumps up to 4 ft from the ENE, but the wind strengthens to 15 mph, making it even less appealing.

The entire first week, from the 21st through the 28th, is a bust. The swell hangs around the 3 ft to 5 ft mark, but it’s almost always from the ENE, with periods under 8 seconds. The wind is a persistent cross-shore at 15-25 mph, keeping the surface lumpy and chopped. The combined energy values are mostly in the mid-100s to low 200s, which is moderate at best, but the quality is just not there. Even a bit of long-period NW groundswell pops up on the 24th and 25th, but it’s only 1 ft to 2 ft, and the wind is still howling. It’s a tease.

The end of the month and into September looks a bit heavier, but not better. On Sunday, August 30th, the afternoon sees a 6 ft ENE swell with a 12-second period, and the combined energy jumps to 980. That’s a solid pulse of energy, but the wind is still a moderate cross-shore, and the forecast is only marginal. The next day, Monday the 31st, brings a bigger 6 ft swell with a 13-second period and energy hitting 953, but it’s paired with rain showers and a fresh cross-shore breeze. The conditions are poor.

The real size comes in on Tuesday, September 1st, with a 8 ft swell from the ENE, a 13-second period, and massive energy readings over 2000. That’s serious, powerful groundswell. But look at the wind – it’s a near gale on Tuesday morning, turning into a severe gale by the afternoon. That’s blown out, dangerous, and only for the most experienced, and even then, it’s not worth it. That’s kite-surfing weather, not paddle-surfing weather.

Wednesday, September 2nd, is the closest we get to a positive note. The morning shows a 8 ft NE swell with a 12-second period, and finally, the wind turns cross-offshore at 22 mph. The surf will be clean, but the size is still big. The combined energy is a whopping 1687. This is a powerful, long-period groundswell hitting a reef break. It’s going to be heavy, with long lulls between sets. For a point break or reef, this could be a proper wave, but it’s advanced-only territory. The afternoon cleans up a bit, dropping to 8 ft, but it’s not a standout.

After that, the swell drops off through the 3rd, 4th, and 5th of September, but the wind stays onshore, and the surf remains poor.

So, the bottom line: it’s a two-week gap with no real surf options. The only time it gets interesting is the early part of September, but the wind conditions and size make it a tough call. Windmills is a fairly consistent reef, but the forecast is just not cooperating. Keep your board in the car, check the cams, and hope the forecasts change. These runs can break.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Sun night. Warm (max 27°C on Fri morning, min 25°C on Sat night). Winds increasing (light winds from the ENE on Fri morning, strong winds from the ENE by Sat afternoon).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Mon morning. Warm (max 26°C on Mon morning, min 24°C on Tue night). Mainly fresh winds.

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
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)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
NE
7
1.2
ENE
7
1.1
ENE
7
1.2
ENE
7
0.4
WNW
10
1.5
ENE
7
1.5
ENE
6
0.4
WNW
12
1.5
ENE
5
1.4
ENE
5
0.4
NW
11
1.3
ENE
8
0.4
NW
10
1.4
ENE
6
1.3
ENE
5
1.3
ENE
5
1.6
ENE
5
1.2
ENE
5
0.4
ENE
17
1.5
ENE
6
1.1
ENE
6
Wave Graph
Metric surfscale
Energy kJ
65
123
102
124
33
195
169
53
133
113
33
196
28
126
95
99
140
77
97
129
88
Wind (km/h)
15
ENE
30
E
25
E
40
ENE
35
ENE
35
E
35
ENE
35
ENE
30
ENE
30
ENE
35
ENE
25
E
30
ENE
30
ENE
25
ENE
25
ENE
25
ENE
25
E
25
ENE
25
ENE
20
ENE
Wind State
cross
cross-off
cross-off
cross
cross
cross-off
cross
cross
cross
cross
cross
cross-off
cross
cross
cross
cross
cross
cross-off
cross
cross
cross
High Tide
12:06PM0.68m
12:46PM0.73m
11:07PM0.34m
1:17PM0.77m
00:14AM0.37m
1:44PM0.80m
00:56AM0.42m
2:09PM0.82m
1:33AM0.46m
2:32PM0.83m
2:10AM0.51m
2:54PM0.82m
2:47AM0.56m
Low Tide
4:03AM0.21m
9:02PM0.33m
5:16AM0.17m
8:40PM0.32m
6:07AM0.14m
8:43PM0.30m
6:48AM0.11m
8:53PM0.27m
7:25AM0.10m
9:07PM0.25m
8:01AM0.10m
9:23PM0.22m
clear
clear
clear
clear
part cloud
clear
clear
part cloud
rain showers
rain showers
clear
thunderstorm
clear
clear
clear
clear
clear
part cloud
rain showers
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:07
6:07
6:07
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:51
6:51
6:50
6:49
6:47
6:46
6:46
 mm
1
1
1
1
Temp °C
27
27
27
26
27
25
26
26
25
26
26
26
26
26
25
25
25
25
25
25
25
Feels °C
30
26
27
25
25
23
24
25
24
25
24
26
24
24
24
23
22
24
23
23
23
  • 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 Windmills Surf forecast

The above surf forecast table for Windmills provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Windmills can be found by selecting the local surf guide option on the grey menu. Our Windmills 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 (Windmills) 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 Windmills 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.

Windmills is 20 km (12 miles) from Wailuku. If you plan a vacation in Maui, look for hotels and other accommodation in Wailuku. Wailuku has rooms for a wide range of budgets as well as car hire and transport links.

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