Chuns Reef surf break

Chuns Reef surfForecast / HAW – Oahu / USA

information circle16 Day Weather and Surf, issued 7 am Wednesday 22 Apr 2026 HST
Forecast update in hr  min  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
24.5° C
(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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Apr 22) at 2PM. The primary swell is predicted to be 1.3m and 13s period with a secondary swell of 1.2m and 13s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Chuns Reef in the next 16 days are 1.3m 13s and forecast to arrive on Wednesday (Apr 22) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Saturday (Apr 25) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Wed 22nd Apr)4.5ft (1.3m) 13s
Best Surf 2PM (Wed 22nd Apr)4.5ft (1.3m) 13s
Most Powerful 2PM (Wed 22nd Apr)4.5ft (1.3m) 13s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 25°C on Wed morning, min 22°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Sun afternoon, min 23°C on Sat morning). Wind will be generally light.

Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
4
3
2
0
0
1
1
1
1
2
1
1
1
1
2
2
1
1
1
1
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
1.3
NNE
13
1.2
NW
13
1.2
NNE
12
1
NNE
11
1
NNE
10
0.9
NNE
10
1.1
NE
9
1.1
NE
9
1.3
NNE
8
1.3
NNE
8
1
NW
13
1.4
NE
8
1
NW
12
1
NW
12
0.9
NW
11
0.9
NW
11
1.1
NE
8
1.5
ENE
7
1.5
E
7
0.9
NW
14
1.7
ENE
7
Wave Graph
Metric surfscale
Energy kJ
606
509
385
251
202
154
211
182
212
207
336
251
282
259
176
169
143
215
212
272
261
Wind (km/h)
5
ENE
15
ENE
15
ENE
15
ENE
20
NE
20
NE
15
ENE
20
ENE
20
ENE
20
ENE
20
ENE
20
ENE
20
ENE
20
ENE
20
ENE
15
ENE
15
ENE
15
E
20
E
25
E
25
E
cross-off
cross-off
cross-off
cross-off
cross
cross
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
8:12PM0.46m
9:22AM0.09m
9:21PM0.44m
10:49AM0.15m
10:23PM0.41m
11:46AM0.21m
11:15PM0.38m
12:30PM0.28m
11:59PM0.35m
1:09PM0.34m
00:37AM0.31m
1:43PM0.40m
1:11AM0.27m
Low Tide
10:52AM0.00m
3:20AM0.01m
12:21PM0.05m
4:05AM-0.01m
2:08PM0.07m
4:40AM-0.02m
3:41PM0.08m
5:08AM-0.03m
4:56PM0.08m
5:32AM-0.04m
5:59PM0.08m
5:54AM-0.05m
6:54PM0.07m
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:05
6:05
6:05
6:03
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:53
6:53
6:54
6:54
6:55
6:55
6:55
3
Temp °C
25
25
24
25
25
23
24
25
23
24
24
23
24
25
23
24
25
24
24
24
23
27
27
25
25
25
23
23
24
22
23
23
22
23
24
22
24
25
25
23
23
21
Swell 1
Height (m)
Direction
Period (s)
1.3
NNE
13
1.2
NNE
12
1.2
NNE
12
1
NNE
11
1
NNE
10
0.9
NNE
10
0.5
W
13
0.5
WNW
12
1.3
NNE
8
1.3
NNE
8
1.3
NNE
8
1.4
NE
8
1
NW
12
1
NW
12
0.9
NW
11
1
NE
8
1.1
NE
8
0.6
NW
10
0.5
NW
10
0.9
NW
14
0.7
NW
12
Energy kJ
606
433
385
222
202
154
89
89
212
207
219
239
282
259
176
108
143
82
50
272
148
Swell 2
Height (m)
Direction
Period (s)
1.2
NW
14
1.2
NW
13
1.1
NW
13
0.9
NNW
12
0.8
NNW
12
0.6
NNW
12
0.4
NNW
11
0.5
NW
13
0.6
NNW
12
0.9
NW
11
1
NW
13
0.9
NNW
12
0.4
SSW
14
0.5
SW
14
0.4
SW
14
0.9
NW
11
0.7
NW
10
0.4
NE
8
0.5
NW
15
0.3
SW
12
0.6
NNW
15
Energy kJ
532
509
364
251
180
90
47
80
94
182
336
251
82
102
49
169
112
18
104
23
146
Swell 3
Height (m)
Direction
Period (s)
0.7
W
14
0.6
W
13
0.6
W
13
0.5
W
13
0.5
W
12
0.5
W
15
0.2
SSW
13
0.3
ESE
7
0.5
W
12
0.4
WNW
11
0.4
SW
16
0.4
SW
15
0.2
W
10
0.2
W
10
0.4
NE
10
0.4
SW
13
0.4
SW
13
0.4
SW
13
0.4
NE
9
0.1
S
18
0.2
SSW
12
Energy kJ
191
127
123
80
75
109
18
11
69
40
61
56
7
7
24
45
44
43
19
6
14
Wind waves
Height (m)
Direction
Period (s)
0.6
E
8
0.7
ENE
4
0.5
ENE
4
0.7
NE
4
1.1
NE
9
1.1
NE
9
0.4
ESE
4
0.8
E
4
0.6
E
5
1.4
NE
8
1.3
NE
7
1.3
ENE
7
0.6
E
8
0.5
ESE
8
1.5
ENE
7
1.5
E
7
1.5
ENE
7
1.7
ENE
7
Energy kJ
40
16
9
16
211
182
5
22
18
204
176
155
41
32
215
212
192
261
Nearest Offshore or Glassy
Rating
(10 max)
4
4
3
3
2
2
2
2
2
2
3
2
2
3
2
2
2
1
1
2
2
Distance (km)
0
0
0
5
22
19
1
19
1
1
1
1
1
1
1
0
0
1
1
1
1
Best forecast wave conditions in Oahu
Rating
(10 max)
4
4
3
3
2
2
2
2
2
3
3
3
2
3
2
2
2
2
1
2
2
Best forecast wave conditions in United States
Rating
(10 max)
4
4
3
3
2
3
2
2
2
3
3
3
2
3
2
2
2
2
2
2
2
Header Global
Rating
(10 max)
9
5
5
4
5
5
4
5
4
4
6
7
9
5
5
6
6
8
8
5
5
  • 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 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 16 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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