H-Reef Surf Break

Lat Long: 20.94° N 156.37° W

H-Reef Surf Forecast and Surf Report

Issued: 1 am 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's H-Reef sea temperature is
26.2° C
0.2° 

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 18 Jul 2026:

  • Most powerful swell: Thursday 23 Jul, 2AM (local time) - 5.5ft (1.7m), 12s period, E swell with 841 kJ wave energy.

Best Forecast Surf Conditions for H-Reef this week:

The most powerful waves expected at H-Reef in the next 16 days are 1.7m 12s and forecast to arrive on Thursday (Jul 23) 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 0.3m 13s period and expected on Saturday (Jul 18) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2AM (Thu 23rd Jul)5.5ft (1.7m) 12s

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


The Lowdown

G’day, Rusty here. Lookin’ at the next 16 days for this reef, and I gotta be straight with ya – it’s a tough stretch. The first week and a half is pretty much a write-off, with cross-shore winds and short-period, weak energy swell just makin’ a mess of things. The water’s sittin’ at a warm 79° with a temperature anomaly of 0.4°, so it’s pretty much spot-on average for this time of year – no surprises there.

The first real chance of anything worth paddlin’ out for doesn’t show up until Wednesday the 22nd of July, and even then it’s marginal. The morning’s a dud with 2ft from the east at 11 seconds, but the afternoon picks up a bit – 4ft from the east, period jumps to 13 seconds, and the combined energy hits 578 (moderate). Problem is, the wind is still cross-shore from the ENE at 12 mph, so it’s gonna be choppy. It’s a “maybe” session, not a standout.

The real energy starts to build from Saturday the 25th of July into the following week. That Saturday morning sees 6ft from the ENE at 8 seconds, with 503 (moderate) energy, but the wind is still cross. The afternoon gets interesting though – 3ft from the east but with a 16-second period, and the energy jumps to 714 (strong). That’s proper groundswell. For a reef break like H-Reef, that long period means longer, more powerful lines, but it also means a bit more time between sets. The wind is still cross-shore, so it’s not perfect, but it’s the best of a rough patch.

The standout window is Sunday the 27th of July through to Tuesday the 29th of July. Swell sizes are up around 7ft to 8ft from the east, with periods of 15 to 16 seconds. The combined energy is massive – 1921, 2415, 2752, 2408 – that’s strong to very strong energy. This is big, powerful groundswell. For a reef break with an optimum swell direction of NNE, this east swell is comin’ in a bit off-angle, but it’ll still wrap in. The catch is the wind. It’s cross-onshore from the ENE to NE at 9 to 12 mph, which is gonna put a nasty chop on the face. These waves are gonna be big and powerful, but messy. For advanced surfers only – over 8ft, this is not for beginners. The set-up is a reef, so the long period (15-16 seconds) will make for some proper grinding walls, but the chop will make it a battle.

Honestly, there’s no truly clean, perfect day in the whole 16-day window. The closest thing to a highlight is Sunday the 26th of July, Monday the 27th of July, and Tuesday the 28th of July. The swell is there, the energy is there, but the wind is just not cooperating. It’s a classic case of “if you’re desperate, you’ll go,” but it’s not gonna be a classic session. Given the strong winds and the big, messy swell at a reef, some might even say this looks more interesting for a kite session than a paddle session.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Sat morning, min 24°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Wed morning. Warm (max 26°C on Tue morning, min 23°C on Thu morning). Wind will be generally light.

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
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
1
1
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)
2
E
8
1.9
E
8
1.6
E
8
1.4
E
8
1.3
E
8
1.3
E
8
1.2
E
7
1.4
ENE
7
0.9
E
7
1
E
7
1
E
7
1.4
ENE
7
1.1
E
7
1.3
E
13
1.7
E
12
1.5
E
11
1.3
ENE
6
1.6
ENE
6
1.3
E
7
1.7
ENE
7
1.9
ENE
7
Wave Graph
Metric surfscale
Energy kJ
488
481
346
258
217
208
156
214
81
94
99
191
118
543
841
565
147
200
159
289
355
Wind (km/h)
25
E
25
E
25
E
20
E
20
ENE
20
E
20
ENE
20
ENE
15
E
20
ENE
25
ENE
25
E
25
E
20
ENE
25
E
25
E
25
E
25
E
25
E
25
ENE
25
E
Wind State
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
5:32PM0.81m
6:25AM0.56m
5:50PM0.73m
7:52AM0.58m
5:59PM0.66m
9:49AM0.62m
5:38PM0.60m
11:30AM0.68m
12:23PM0.74m
1:00PM0.80m
Low Tide
10:46AM0.27m
00:26AM0.25m
11:28AM0.39m
00:59AM0.24m
12:20PM0.49m
1:37AM0.23m
2:16PM0.58m
2:24AM0.22m
3:23AM0.21m
4:27AM0.19m
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
rain showers
clear
clear
part cloud
clear
clear
clear
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:54
5:54
5:54
5:54
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:08
7:07
7:07
7:07
7:07
7:07
7:07
 mm
1
1
Temp °C
26
26
25
26
26
25
26
25
25
26
26
25
25
25
25
25
26
25
26
26
25
Feels °C
25
25
25
25
25
25
27
25
25
26
26
25
25
24
25
24
25
24
25
25
24
  • 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 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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