H-Reef Surf Break

Lat Long: 20.94° N 156.37° W

H-Reef Surf Forecast and Surf Report

Issued: 1 pm 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's H-Reef sea temperature is
26.6°C
0.1° 

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


H-Reef surf forecast from 1 Sep 2026:

  • Best quality surf: Monday 7 Sep, 8PM (local time) - 7ft (2.1m), 10s period, NE swell with cross-offshore winds.
  • Most powerful swell: Monday 7 Sep, 2AM (local time) - 8ft (2.5m), 12s period, ENE swell with 2,081 kJ wave energy.
  • Next surfable swell (1★+): Monday 7 Sep, 8PM (local time) - 7ft (2.1m), 10s period with NE swell.

Best Forecast Surf Conditions for H-Reef this week:

The surf forecast for H-Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 07) at 8PM. The primary swell is predicted to be 2.1m and 10s period with a secondary swell of 0.5m and 14s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at H-Reef in the next 16 days are 2.5m 12s and forecast to arrive on Monday (Sep 07) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 18s period and expected on Monday (Sep 07) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Mon 7th Sep)7ft (2.1m) 10s
Best Surf 8PM (Mon 7th Sep)7ft (2.1m) 10s
Most Powerful 2AM (Mon 7th Sep)8ft (2.5m) 12s

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


The Lowdown

Hey, Rusty here. Let’s chew the fat on what’s coming up at H-Reef.

Truth is, we’ve got a pretty flat and messy outlook for most of it. The first real recommendation isn’t until Monday August 31st, and from there it’s a long haul of poor surf with a side-shore wind mucking it up. There’s moderate wave energy kicking in around Wednesday September 2nd, with a combined swell energy of 647, but the wind is a fresh cross-shore and the period is a short 8 seconds, so you’re looking at bumpy, weak lines. There’s a real dry spell right through to the end of the first week where you’re better off doing something else.

But there’s one window that gets the heart rate up. By Friday September 4th, the swell period jumps to 13 seconds – that’s proper groundswell – and the combined energy hits a strong 1567. Swell height is around 7 ft from the east-northeast. Water temp is about 80°, dead average for the time of year, so nothing weird there. This energy sticks into Saturday the 5th (combined energy of 1731) and Sunday the 6th (combined energy of 2017). But the wind stays cross-shore (east to east-northeast at 12 mph), so it’s going to be lumpy. This reef is exposed and fairly consistent, but with that side wind and an 8 ft swell on Sunday, it’s experts only. The period over 11 seconds means long, powerful lines, but the cross breeze will make the takeoff tricky.

Then on Monday September 7th morning, we finally catch a break. The wind goes light offshore from the north-northeast at 9 mph, with an 8 ft swell from the east-northeast at 11 seconds. That’s the cleanest wind of the whole run. The combined energy is still very strong at 1605. There’s a risk of thunderstorms, but that offshore breeze will make it glassy. That’s the standout session. After that, it falls apart. By Tuesday the 8th, the swell drops to 4 ft and the period shortens back to 8 seconds, and it’s all side-shore again. From there it fades into weak, short-period slop all the way through to the end of the 16 days.

So if you’re keen, aim for Monday September 7th for a clean, solid 8 ft groundswell. Saturday and Sunday have the size but you’ll be dealing with the side wind. Otherwise, it’s a long wait.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Mon night. Warm (max 27°C on Tue afternoon, min 25°C on Mon night). Mainly fresh winds.

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Thu night. Warm (max 27°C on Thu afternoon, min 25°C on Thu night). Mainly fresh winds.

Mon
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
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
1
2
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)
1.9
ENE
8
2
ENE
8
1.9
ENE
8
1.8
ENE
8
2
ENE
8
2.1
ENE
8
2.1
E
8
2.1
E
8
2.3
E
7
2
E
8
2.2
E
7
2.1
ENE
8
2.1
E
13
2.1
E
13
2.3
ENE
13
2.3
ENE
13
2.4
ENE
13
2.5
ENE
13
2.5
ENE
12
2.5
ENE
12
Wave Graph
Metric surfscale
Energy kJ
441
487
454
412
499
533
572
510
572
463
537
469
1561
1538
1687
1645
1901
1997
1757
2081
Wind (km/h)
25
ENE
20
E
20
ENE
25
ENE
30
E
30
E
30
E
30
E
35
E
30
E
35
E
30
ENE
25
ENE
25
E
25
E
20
ENE
20
E
25
E
25
ENE
20
NE
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
High Tide
3:54PM0.73m
5:17AM0.74m
4:08PM0.67m
6:21AM0.72m
4:12PM0.61m
7:59AM0.72m
10:08AM0.75m
11:27AM0.82m
12:16PM0.88m
11:19PM0.44m
Low Tide
10:29PM0.13m
10:55AM0.43m
11:00PM0.13m
11:57AM0.51m
11:40PM0.14m
00:37AM0.17m
2:13AM0.19m
4:02AM0.18m
7:38PM0.37m
clear
rain showers
clear
clear
rain showers
rain showers
clear
clear
clear
clear
rain showers
part cloud
part cloud
clear
clear
clear
rain showers
clear
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:09
6:09
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:42
6:40
6:39
6:38
6:37
6:37
6:37
 mm
1
1
1
1
1
2
Temp °C
26
25
26
27
26
26
27
26
27
27
25
26
26
25
27
27
26
27
27
26
Feels °C
25
24
26
27
26
26
26
25
25
25
24
24
25
24
28
28
28
28
28
27
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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 H-Reef Surf forecast

The above surf forecast table for H-Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at H-Reef can be found by selecting the local surf guide option on the grey menu. Our H-Reef 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 (H-Reef) 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 H-Reef 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 H-Reef, camping, hotels and condos and appartments in Maui, consider staying in Kahului which is 8 km (5 miles) away. Other places in and around Maui where you can find information about places to rent, and car hire include Wailuku which is 15 km (9 miles) away, Kihei, Lanai - Lanai and Kaunakakai - Molokai.

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