Surf Forecast Surf Report
Chuns Reef surf break

Chuns Reef surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 7 pm Saturday 17 May 2025 HST
Forecast update in 33 min 14 s Forecast update imminent
Chuns Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Chuns Reef sea temperature is
77.7°F
(Which is normal for this time of year)


Best Forecast Surf Conditions for Chuns Reef this week:

The surf forecast for Chuns Reef over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (May 18) at 2AM. The primary swell is predicted to be 7ft and 8s period with a secondary swell of 2ft and 10s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Chuns Reef in the next 12 days are 7ft 8s and forecast to arrive on Sunday (May 18) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1ft 16s period and expected on Sunday (May 18) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sun 18th May)6.5ft (2.0m) 8s
Best Surf 2AM (Sun 18th May)6.5ft (2.0m) 8s
Most Powerful 2AM (Sun 18th May)6.5ft (2.0m) 8s

Table - best surf conditions forecast for Chuns Reef over the next 12 days.

Updates in 33 min 14 s Forecast update imminent
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thu
29
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (ft) & direction (?)
6.5
E
6
E
5
E
5
E
5
E
5
ENE
5
E
5
ENE
4.5
ENE
4.5
ENE
3.5
E
4.5
ENE
3.5
ENE
5
ENE
5
ENE
5
ENE
5
ENE
5
ENE
5
ENE
4.5
ENE
4.5
ENE
4.5
ENE
4.5
ENE
4.5
ENE
4
ENE
4
ENE
1.5
NNW
1.5
NNW
4
ENE
3.5
ENE
4
ENE
3.5
E
1.5
N
2
N
2
N
4
E
Period(s) (?)88888888888888888888888877131266661210106
Wave
Graph
(?)Metric surfscale
Energy (?)539439343351349326309266232186145186149283287266328284264237257221202199164143675611510111581457767108
Wind
(mph)
10
ESE
10
E
10
ENE
10
E
10
E
15
ENE
10
E
15
ENE
15
ENE
10
ENE
10
ENE
10
ENE
10
ENE
10
E
15
ENE
15
ENE
15
ENE
15
ENE
10
ENE
15
ENE
15
ENE
10
ENE
15
ENE
15
ENE
15
E
15
ENE
15
ENE
15
E
15
ENE
15
ENE
10
ENE
15
ENE
10
ENE
10
E
10
E
10
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (ft)
7:49AM
0.3
7:47PM
1.44
9:28AM
0.43
8:42PM
1.38
10:37AM
0.66
9:36PM
1.28
11:28AM
0.95
10:28PM
1.15
12:12PM
1.25
11:19PM
0.98
12:54PM
1.54
12:10AM
0.82
1:37PM
1.77
1:00AM
0.66
2:19PM
1.94
1:50AM
0.52
3:03PM
2.03
2:41AM
0.43
3:49PM
2.03
3:33AM
0.36
4:36PM
2
4:30AM
0.33
5:24PM
1.87
Low Tide
/ height (ft)
2:06AM
0.07
10:30AM
0.16
2:46AM
0.03
12:03PM
0.3
3:19AM
-0.03
1:55PM
0.43
3:48AM
-0.1
3:37PM
0.43
4:16AM
-0.16
5:04PM
0.39
4:46AM
-0.23
6:18PM
0.3
5:17AM
-0.3
7:24PM
0.2
5:50AM
-0.33
8:25PM
0.13
6:26AM
-0.33
9:23PM
0.07
7:05AM
-0.3
10:19PM
0.03
7:46AM
-0.26
11:16PM
0.03
8:30AM
-0.16
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thu
29
Sunrise-5:52--5:52--5:50--5:50--5:50--5:50--5:50--5:50--5:50--5:50--5:48--5:48-
Sunset--7:05--7:05--7:06--7:06--7:06--7:07--7:07--7:07--7:07--7:08--7:08--7:08
thunderstorm part cloudclearclearclearclearclearclearclearclearclearclearpart cloudthunderstorm thunderstorm thunderstorm thunderstorm clearclearclearclearclearclearclearclearclearclearclearclearclearpart cloudpart cloudpart cloudpart cloudpart cloudpart cloud
Rain (in)
0.0------------0.00.10.00.1-------------------
Temp. °F757777757777757777757777757777757577737777757577757777757777757777757979
Feels °F (?)757577737777737573737575737575737373707573737373727373727372727575737977

Short Range Forecast: Some drizzle, heaviest during Sat night. Warm (max 77°F on Sun morning, min 73°F on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 0.2in), mostly falling on Thu morning. Warm (max 77°F on Wed morning, min 73°F on Tue night). Wind will be generally light.

Days 6-9 Weather Summary Mostly dry. Warm (max 77°F on Sat morning, min 73°F on Fri night). Wind will be generally light.

Long Range Forecast: Mostly dry. Warm (max 79°F on Thu morning, min 73°F on Mon night). Wind will be generally light.

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Information about the Chuns Reef Surf forecast

The above surf forecast table for Chuns Reef provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Chuns Reef can be found by selecting the local surf guide option on the grey menu. Our Chuns 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 (Chuns 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 Chuns 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.

Chuns Reef is 15 km (9 miles) from Wahiawa. If you plan a vacation in Oahu, look for hotels and other accommodation in Wahiawa. Wahiawa has rooms for a wide range of budgets as well as car hire and transport links.

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