Niihau
16-Day Marine Weather Forecast Print

Monday 8/18

Morning

Moderate to strong E winds with choppy seas. Small short period waves.

Winds: E 15 to 16 knots.

Seas: SE 4 feet at 8 seconds.

Afternoon

Breezy ESE winds with moderate choppy seas. Small long period waves.

Winds: ESE 10 to 11 knots.

Seas: S 3 feet at 15 seconds.

Tuesday 8/19

Morning

Moderate to strong E winds with choppy seas. Small mid period waves.

Winds: E 18 knots.

Seas: S 4 feet at 13 seconds.

Afternoon

Breezy ESE winds with moderate choppy seas. Small short period waves.

Winds: ESE 13 knots.

Seas: SE 4 feet at 9 seconds.

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16-Day Wind, Waves & Tide Print
Wind
Avg. (kts)
Gust (kts)
Direction
Waves
Avg. (ft)
Peak (ft)
Direction
Per. (sec)
Weather
Precip. (in)
Temp (f)
Pressure (mb)

Tides

4ft
2ft
Sea Level
-2ft
-4ft
Monday 8/18
12am
15
18

E
4
5

SE
8
3am
12
14

ENE
4
5

SE
8
6am
15
16

E
4
5

SE
8
9am
15
15

E
4
5

SE
7
12pm
14
16

E
4
5

S
15
3pm
11
12

E
4
5

S
15
6pm
10
11

ESE
3
4

S
15
9pm
17
17

E
4
5

S
15
Tuesday 8/19
12am
16
16

ESE
4
5

S
14
3am
16
17

ESE
4
5

S
14
6am
18
18

E
4
5

S
13
9am
18
18

E
4
5

S
13
12pm
16
17

ESE
4
5

S
13
3pm
15
16

ESE
4
5

S
13
6pm
13
13

ESE
4
5

SE
9
9pm
14
14

E
4
5

ESE
6

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Monday 8/18
12am
NIGHT_CLEAR
0
80
1018
3am
NIGHT_CLEAR
0
80
1017
-
6am
CLEAR
0
80
1017
9am
CLEAR
0
80
1018
12pm
CLEAR
0
80
1017
3pm
CLEAR
0
80
1016
-
6pm
CLEAR
0
80
1016
9pm
NIGHT_CLEAR
0
80
1017
  • Sunrise: 6:20AM
  • Sunset: 7:11PM
  • Moonrise: 1:45AM
  • Moonset: 3:00PM
  • 25% Waning Crescentwaning crescent
Tuesday 8/19
12am
NIGHT_CLEAR
0
80
1018
3am
NIGHT_BRIEF_SHOWERS
0
79
1016
6am
CLEAR
0
80
1017
9am
BRIEF_SHOWERS_POSSIBLE
0
80
1018
-
12pm
CLEAR
0
80
1018
3pm
CLEAR
0
80
1016
-
6pm
CLEAR
0
80
1016
9pm
NIGHT_CLEAR
0
80
1018
-
  • Sunrise: 6:21AM
  • Sunset: 7:10PM
  • Moonrise: 2:49AM
  • Moonset: 4:04PM
  • 16% Waning Crescentwaning crescent

Swell - Model Run: 17th Aug, 08:00:PM HST / Last Updated: 18th Aug, 08:02:AM HSTWeather - Model Run: 17th Aug, 08:00:PM HST / Last Updated: 18th Aug, 03:29:AM HST

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