Chinamans Hat/Mokolii surfForecast / HAW – Oahu / USA

information circle16 Day Weather and Surf, issued 7 am Thursday 21 May 2026 HST
Forecast update in hr  min  s Forecast update imminent
Chinamans Hat/Mokolii surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Chinamans Hat/Mokolii sea temperature is
25.4° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Chinamans Hat/Mokolii this week:

The most powerful waves expected at Chinamans Hat/Mokolii in the next 16 days are 3.0m 8s and forecast to arrive on Thursday (May 21) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 16s period and expected on Thursday (May 21) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Thu 21st May)10ft (3.0m) 8s

Table - best surf conditions forecast for Chinamans Hat/Mokolii over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Fri night. Warm (max 24°C on Thu afternoon, min 22°C on Fri night). Mainly strong winds.

Days 4-6 Weather Summary

Light rain (total 7mm), mostly falling on Mon afternoon. Warm (max 24°C on Sun afternoon, min 22°C on Sun night). Mainly fresh winds.

Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
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)
2.5
ENE
8
3
ENE
8
3
ENE
8
2.5
ENE
8
2.5
ENE
8
2.5
ENE
8
2.5
ENE
8
2.5
ENE
8
2.4
ENE
8
2.3
ENE
8
2.3
ENE
8
2.4
ENE
8
2.1
ENE
8
2.3
ENE
8
2.1
ENE
7
2.2
ENE
7
2.1
ENE
8
2
ENE
8
1.8
ENE
7
1.7
ENE
7
1.7
ENE
7
Wave Graph
Metric surfscale
Energy kJ
956
1071
1072
891
926
878
982
989
809
753
721
771
558
590
495
522
504
447
353
310
281
Wind (km/h)
35
ENE
35
ENE
35
ENE
35
ENE
40
ENE
35
ENE
40
ENE
35
ENE
30
ENE
30
ENE
30
ENE
30
ENE
35
ENE
35
ENE
25
ENE
30
ENE
35
ENE
25
ENE
25
E
25
ENE
25
E
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
7:28PM0.75m
6:27AM0.21m
8:23PM0.69m
9:47AM0.28m
9:08PM0.63m
11:13AM0.40m
9:44PM0.58m
12:05PM0.52m
10:10PM0.52m
12:43PM0.62m
10:30PM0.48m
1:15PM0.70m
10:49PM0.44m
Low Tide
11:22AM-0.02m
4:53AM0.18m
12:27PM0.09m
4:45AM0.14m
1:58PM0.19m
4:59AM0.09m
3:43PM0.26m
5:15AM0.03m
5:17PM0.30m
5:32AM-0.02m
6:30PM0.32m
5:51AM-0.06m
7:28PM0.32m
part cloud
clear
clear
part cloud
clear
rain showers
rain showers
part cloud
clear
clear
clear
clear
part cloud
rain showers
rain showers
clear
rain showers
rain showers
rain showers
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:50
5:50
5:48
5:48
5:48
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:05
7:05
7:06
7:06
7:07
7:07
7:07
1
1
1
1
1
4
2
Temp °C
23
24
23
23
24
23
23
23
23
23
24
23
24
24
23
24
24
23
23
24
23
19
20
19
19
20
19
19
18
19
19
20
20
20
21
20
21
22
20
21
22
21
Swell 1
Height (m)
Direction
Period (s)
0.3
NNW
10
0.2
NNW
10
0.3
SSW
15
0.4
NW
10
0.4
NW
11
0.4
NW
11
0.4
NW
16
0.6
NNW
15
0.6
NNW
13
0.6
NNW
12
0.6
NNW
12
0.5
NW
11
0.4
NW
11
0.4
NW
11
0.3
NW
10
0.2
S
13
0.4
NW
18
0.6
NW
15
0.7
NW
14
0.6
NW
13
0.6
NW
13
Energy kJ
19
9
42
27
30
30
67
148
120
101
96
61
30
29
16
13
81
147
192
142
130
Swell 2
Height (m)
Direction
Period (s)
0.2
S
16
0.3
SSW
16
0.2
NNW
10
0.2
S
14
0.2
S
18
0.3
S
16
0.4
NW
10
0.3
S
15
0.3
S
15
0.3
S
13
0.3
S
13
0.3
S
14
0.3
S
14
0.3
S
13
0.3
S
13
0.2
NNW
10
0.2
S
16
0.3
S
15
0.3
S
14
0.3
S
13
0.3
S
13
Energy kJ
20
48
10
16
25
47
27
39
38
32
32
37
36
32
31
9
19
38
36
32
30
Swell 3
Height (m)
Direction
Period (s)
0.2
SSE
13
0.2
SSE
13
0.2
SSE
13
0.2
SSE
12
0.2
S
14
0.2
S
13
0.3
S
16
0.4
NW
10
0.2
NNW
10
0.2
S
16
0.2
S
16
0.1
S
21
0.1
S
20
0.1
S
17
0.2
S
16
0.2
NNW
10
0.2
NNW
9
0.1
NW
9
0.1
S
8
Energy kJ
17
17
16
14
14
14
45
26
9
21
20
8
7
5
21
9
8
3
1
Wind waves
Height (m)
Direction
Period (s)
2.5
ENE
8
3
ENE
8
3
ENE
8
2.5
ENE
8
2.5
ENE
8
2.5
ENE
8
2.5
ENE
8
2.5
ENE
8
2.4
ENE
8
2.3
ENE
8
2.3
ENE
8
2.4
ENE
8
2.1
ENE
8
2.3
ENE
8
2.1
ENE
7
2.2
ENE
7
2.1
ENE
8
2
ENE
8
1.8
ENE
7
1.7
ENE
7
1.7
ENE
7
Energy kJ
956
1071
1072
891
926
878
982
989
809
753
721
771
558
590
495
522
504
447
353
310
281
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
3
1
1
1
2
1
1
1
1
1
1
1
1
2
3
2
2
Distance (km)
139
141
136
168
193
136
141
141
37
38
136
38
141
138
40
158
138
28
37
37
28
Best forecast wave conditions in Oahu
Rating
(10 max)
2
2
2
2
3
3
2
2
Best forecast wave conditions in United States
Rating
(10 max)
4
2
2
3
3
2
3
2
2
2
1
3
2
1
3
2
2
4
3
2
4
Header Global
Rating
(10 max)
5
7
6
5
6
8
5
5
6
5
5
4
4
5
5
5
5
5
9
8
9
  • 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 Chinamans Hat/Mokolii Surf forecast

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

Chinamans Hat/Mokolii is 11 km (7 miles) from Kane'ohe. If you plan a vacation in Oahu, look for hotels and other accommodation in Kane'ohe. Kane'ohe has rooms for a wide range of budgets as well as car hire and transport links.

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