Sewers (Maili) surfForecast / HAW – Oahu / USA

information circle16 Day Weather and Surf, issued 1 pm Monday 11 May 2026 HST
Forecast update in hr  min  s Forecast update imminent
Sewers (Maili) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Sewers (Maili) sea temperature is
25.5° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Sewers (Maili) this week:

The surf forecast for Sewers (Maili) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (May 11) at 8PM. The primary swell is predicted to be 0.8m and 11s period with a secondary swell of 1.2m and 7s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Sewers (Maili) in the next 16 days are 1.4m 14s and forecast to arrive on Thursday (May 14) at 5PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 7s period and expected on Tuesday (May 12) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Mon 11th May)2.5ft (0.8m) 11s
Best Surf 8AM (Thu 14th May)3.5ft (1.0m) 15s
Most Powerful 5PM (Thu 14th May)4.5ft (1.4m) 14s

Table - best surf conditions forecast for Sewers (Maili) over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 26°C on Mon afternoon, min 23°C on Mon night). Mainly fresh winds.

Days 5-7 Weather Summary

Light rain (total 5mm), mostly falling on Fri afternoon. Warm (max 27°C on Sat afternoon, min 23°C on Thu night). Wind will be generally light.

Mon
11
Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Saturday
16
Sunday
17
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
1
2
2
0
1
1
0
2
3
2
3
3
2
2
1
2
1
1
1
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
NW
11
1.1
NNE
7
0.7
NNW
10
0.9
NNW
10
0.8
NNW
10
0.7
NNW
9
0.5
NW
9
0.7
NW
16
1.1
NW
15
1.4
NW
14
1.3
NNW
13
1.1
NW
12
1
NW
12
0.8
NW
11
0.6
NW
11
0.7
NNW
11
0.6
NNW
10
0.6
NNW
10
0.6
NE
8
0.4
NNW
9
0.6
SSW
19
Wave Graph
Metric surfscale
Energy kJ
137
114
115
157
120
73
39
271
509
742
590
386
278
147
96
105
71
68
50
33
0
Wind (km/h)
30
ENE
20
ENE
25
ENE
30
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
20
ENE
15
E
20
E
10
ENE
15
E
15
E
10
ENE
0
ESE
5
E
20
ENE
15
ENE
off
off
off
off
off
off
off
off
off
off
off
cross-off
off
off
off
off
off
glassy
glassy
off
off
High Tide
10:45PM0.57m
12:43PM0.54m
11:18PM0.53m
1:20PM0.64m
11:50PM0.48m
1:59PM0.73m
00:21AM0.44m
2:41PM0.80m
00:50AM0.39m
3:25PM0.84m
1:16AM0.36m
4:13PM0.85m
1:31AM0.33m
Low Tide
4:38PM0.35m
5:51AM0.14m
6:06PM0.35m
6:09AM0.09m
7:20PM0.35m
6:32AM0.04m
8:28PM0.34m
7:00AM-0.00m
9:34PM0.34m
7:32AM-0.03m
10:44PM0.34m
8:08AM-0.05m
00:09AM0.33m
8:46AM-0.04m
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
part cloud
thunderstorm
thunderstorm
clear
clear
part cloud
clear
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:54
5:54
5:54
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:01
7:01
7:02
7:02
7:02
7:04
7:04
7:05
1
4
Temp °C
26
24
25
26
24
25
26
24
26
26
24
25
26
24
25
27
26
26
26
25
26
23
23
22
23
22
23
24
22
24
23
23
25
26
23
25
28
27
30
29
26
26
Swell 1
Height (m)
Direction
Period (s)
0.8
NW
11
1.1
NNE
7
0.7
NNW
10
0.9
NNW
10
0.8
NNW
10
0.7
NNW
9
0.5
NW
9
0.7
NW
16
1.1
NW
15
1.4
NW
14
1.3
NNW
13
1.1
NW
12
1
NW
12
0.9
NE
7
0.8
NE
7
0.8
NE
7
0.7
NE
7
0.7
NE
7
0.7
SSW
15
0.7
NE
6
0.8
SSW
14
Energy kJ
137
114
115
157
120
73
39
271
509
742
590
386
278
89
77
64
54
54
193
37
233
Swell 2
Height (m)
Direction
Period (s)
0.4
SSW
18
0.6
NW
11
0.5
S
16
0.5
S
16
0.4
S
15
0.5
SE
7
0.4
SSW
14
0.5
N
8
0.4
NW
11
0.4
SW
14
0.9
NE
7
0.8
NE
6
0.7
NE
6
0.8
NW
11
0.6
NW
11
0.7
NNW
11
0.6
NNW
10
0.6
NNW
10
0.6
NE
8
0.7
SSW
14
0.6
SSW
19
Energy kJ
102
92
127
129
69
23
82
31
43
47
71
51
33
147
96
105
71
68
50
186
251
Swell 3
Height (m)
Direction
Period (s)
0.2
S
12
0.4
ESE
7
0.4
NW
11
0.3
SE
9
0.3
SSW
15
0.4
S
14
0.4
SE
9
0.4
SE
7
0.4
SSW
14
0.4
SE
10
0.5
SW
16
0.5
SW
16
0.5
SW
16
0.4
SW
14
0.6
SSW
15
0.5
SW
14
0.6
SSW
15
0.6
SSW
14
0.5
SSE
11
0.4
NNW
9
0.5
SSE
10
Energy kJ
11
21
40
13
42
66
21
19
79
23
132
124
124
48
152
103
146
138
65
33
57
Wind waves
Height (m)
Direction
Period (s)
1.2
NNE
6
1.3
E
7
1.1
NE
6
1.2
NE
6
1
ENE
6
0.9
NE
6
1.3
ENE
6
0.9
NE
6
1.1
NE
7
1.1
NE
7
1.2
E
8
0.7
NE
7
Energy kJ
117
176
85
105
71
60
107
56
103
102
200
56
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
1
1
1
1
2
3
2
3
3
2
2
1
2
1
1
1
2
2
Distance (km)
165
0
0
10
0
0
3
0
0
144
0
0
0
0
0
0
0
0
0
1
1
Best forecast wave conditions in Oahu
Rating
(10 max)
2
2
1
1
1
1
2
3
3
3
2
2
2
2
2
2
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
2
3
2
1
2
1
2
4
3
2
3
3
2
2
2
2
4
3
3
5
4
Header Global
Rating
(10 max)
8
9
8
9
4
8
5
4
5
5
5
5
4
4
5
4
4
4
4
5
4
  • 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 Sewers (Maili) Surf forecast

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

Sewers (Maili) is 13 km (8 miles) from Makakilo City. If you plan a vacation in Oahu, look for hotels and other accommodation in Makakilo City. Makakilo City has rooms for a wide range of budgets as well as car hire and transport links.

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