Nonopapa, Niihau Island Sea Conditions and Tide Table

Nonopapa, Niihau Island Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 07:13 AM and sunset is at 06:00 PM.

Days 1–3 Weather Summary

Heavy rain (total 22mm), heaviest during Sat night. Warm air temperatures (max 24°C on Thu morning, min 23°C on Thu morning). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 5mm), mostly falling on Sun afternoon. Warm air temperatures (max 24°C on Sun morning, min 24°C on Sun morning). Winds increasing (light winds from the NNE on Sun night, strong winds from the ESE by Tue afternoon).

Days 7–9 Weather Summary

Mostly dry. Warm (max 24°C on Wed morning, min 23°C on Wed morning). Winds decreasing (fresh winds from the ESE on Wed morning, light winds from the S by Fri night).

Days 10–12 Weather Summary

Light rain (total 2mm), mostly falling on Sat night. Warm (max 24°C on Sat morning, min 23°C on Sat morning). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
High Tide
2:33PM0.13m
3:39AM0.51m
3:11PM0.12m
4:12AM0.51m
3:49PM0.12m
4:47AM0.51m
4:29PM0.12m
5:23AM0.51m
5:17PM0.12m
6:00AM0.49m
6:16PM0.13m
6:37AM0.47m
7:29PM0.15m
7:16AM0.43m
8:53PM0.20m
7:57AM0.38m
10:13PM0.26m
8:43AM0.32m
11:17PM0.34m
9:37AM0.26m
00:11AM0.42m
10:44AM0.20m
00:59AM0.49m
Low Tide
10:39AM0.07m
8:02PM-0.02m
11:14AM0.05m
8:35PM-0.03m
11:49AM0.05m
9:09PM-0.03m
12:26PM0.04m
9:44PM-0.02m
1:05PM0.04m
10:22PM-0.00m
1:42PM0.04m
11:04PM0.03m
2:19PM0.03m
11:57PM0.08m
2:54PM0.02m
1:13AM0.13m
3:28PM0.00m
3:02AM0.18m
4:02PM-0.01m
5:12AM0.19m
4:40PM-0.03m
7:03AM0.15m
5:20PM-0.05m
Wave
height (m) 
direction
period (s) 
2.1
NNW
13
1.9
NNW
13
1.8
N
12
1.6
N
11
1.6
N
11
1.5
N
11
1.6
N
12
1.6
N
13
1.5
N
12
1.5
N
12
1.4
N
12
1.5
N
11
1.8
NE
8
1.4
NNE
9
1.6
NE
9
1.8
ENE
9
1.9
ENE
8
1.7
ENE
9
1.8
E
8
1.6
E
8
1.5
NNE
11
1.3
N
12
1.4
NW
11
1.5
NW
11
1.4
NNW
10
1.3
N
11
1.2
NW
11
1.4
NW
10
1.4
NNW
12
1.5
NNW
13
1.6
NW
12
1.6
NW
12
1.5
NW
12
1.6
NW
12
1.6
NW
12
1.5
NW
11
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
part cloud
thunderstorm
light rain
cloud
thunderstorm
part cloud
part cloud
part cloud
thunderstorm
cloud
clear
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
part cloud
rain showers
clear
clear
clear
clear
clear
clear
some clouds
risk tstorm
risk tstorm
risk tstorm
risk tstorm
rain shwrs
some clouds
risk tstorm
light rain
cloudy
risk tstorm
some clouds
some clouds
some clouds
risk tstorm
cloudy
clear
rain shwrs
some clouds
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
some clouds
clear
some clouds
rain shwrs
clear
clear
clear
clear
clear
clear
 km/h
10
SSE
5
WSW
15
S
15
S
5
WSW
10
SE
10
ESE
10
ENE
20
ESE
30
ESE
15
E
20
E
35
ESE
25
ESE
35
ESE
40
E
40
ESE
25
E
35
ESE
25
ESE
30
ESE
20
SE
20
SE
25
SE
25
S
15
SSW
15
S
15
S
10
SSW
10
S
10
S
0
ESE
10
ENE
20
ESE
20
ESE
25
ESE
 mm 
3
7
2
2
2
2
4
2
1
2
2
max°C
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
23
23
24
24
24
24
24
24
24
24
24
23
24
24
23
24
24
Moonrise
6:16
7:10
8:01
8:49
9:33
10:13
10:50
11:24
11:58
12:32
1:09
1:50
Moonset
5:01
5:52
6:47
7:43
8:39
9:35
10:30
11:25
12:21
1:18
2:19
Sunrise
7:13
7:13
7:13
7:13
7:15
7:15
7:16
7:16
7:16
7:16
7:18
7:18
Sunset
6:00
6:01
6:01
6:01
6:02
6:02
6:04
6:05
6:05
6:06
6:06
6:07
Today's sea temperature in Nonopapa, Niihau Island is
26.0° C
(Statistics for 18 Dec 1981-2005 – mean: 25.1 max: 26.5 min: 24.4°C)
Issued (local time): 7 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest