Tuesday, July27, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Hilo, HI

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 5:53AMSunset 7:00PM Monday July 26, 2021 8:58 PM HST (06:58 UTC) Moonrise 9:31PMMoonset 8:30AM Illumination 91% Phase: Waning Gibbous; Moon at 18 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
    EDIT      (on/off)   Help
PHZ122 Big Island Windward Waters- 343 Pm Hst Mon Jul 26 2021
Tonight..East winds 15 knots. Wind waves 5 feet. Scattered showers.
Tuesday..East winds 15 knots. Wind waves 5 feet. Scattered showers in the morning, then isolated showers in the afternoon.
Tuesday night..East winds 15 knots. Wind waves 5 feet. Southeast swell 3 feet in the evening. Isolated showers.
Wednesday..East winds 15 knots. Wind waves 5 feet. Isolated showers.
Wednesday night..East winds 15 knots. Wind waves 5 feet. Southeast swell 3 feet. Scattered showers.
Thursday..East winds 15 knots. Wind waves 5 feet. Southeast swell 3 feet. Scattered showers in the morning, then isolated showers in the afternoon.
Thursday night..East winds 15 knots. Wind waves 5 feet. Southeast swell 3 feet in the evening. Scattered showers.
Friday..East winds 20 knots. Wind waves 5 feet. Southeast swell 3 feet. Scattered showers.
Saturday..East winds 20 knots. Wind waves 7 feet. Southeast swell 3 feet. Scattered showers.
PHZ100 343 Pm Hst Mon Jul 26 2021
Synopsis for hawaiian coastal waters.. High pressure north of the islands will weaken slightly Tuesday and restrengthen Wednesday through the rest of the forecast period.


7 Day Forecast for Marine Location Near Hilo, HI
   Hourly   EDIT   Help
location: 19.72, -155.08     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXHW60 PHFO 270634 AFDHFO

Area Forecast Discussion National Weather Service Honolulu HI 834 PM HST Mon Jul 26 2021

SYNOPSIS. Moderate to breezy easterly trade winds will continue through midweek, then strengthen Thursday through the weekend. Clouds and showers will favor windward and mauka locations, especially overnight through the morning periods. Areas of tropical moisture moving through from east to west may enhance shower coverage and intensity periodically. As the trades increase later in the week, some of these showers may carry over into our dry leeward areas. A return of drier trade wind conditions is anticipated this weekend.

DISCUSSION. Guidance remains persistent and continues to advertise plenty of tropical moisture moving through the islands from east to west through the second half of the week. This moisture combined with an upper trough lurking nearby to the northwest will keep the rainfall chances up, especially for the typical windward and mauka locations each day. Some of the showers may become locally heavy at times, and could spill over into our dry leeward areas later in the week when the trades become locally windy.

For the upcoming weekend, rising upper heights and drier trade wind conditions will limit rainfall chances, even for windward areas.

AVIATION. Moderate to occasionally breezy east northeasterly trades will push showers across windward coasts and slopes through the forecast period, especially along northeast portions of the Big Island. Periods of MVFR ceilings and visibility will likely accompany this activity. Isolated showers are expected elsewhere. Expect VFR to dominate at most terminals.

AIRMET TANGO remains in effect for areas below 8000 feet over and immediately south thru west of mountains for tempo moderate turbulence.

AIRMET SIERRA remains in effect for north thru east sections of the Big Island above 2000 feet for mountain obscuration from clouds and showers and is likely to continue through tonight. This AIRMET may have to be expanded to include windward portions of Maui later tonight.

MARINE. A high pressure system passing slowly north of the region will keep fresh to locally strong trade winds in the forecast through at least early Tuesday morning. A Small Craft Advisory (SCA) will remain in effect for the typically windier waters and channels near Maui County and the Big Island. This SCA may continue for the same areas through Wednesday.

Moderate choppy surf along east facing shores will slowly trend a bit lower tonight through Wednesday due to a slight weakening in the trades near and upstream of the islands. A slight increase in the trade wind swell and surf along east facing shores will develop by Friday.

A mix of small south swells will keep surf small along exposed south shores into the weekend.

A small west-northwest swell, from tropical cyclone activity in the NW Pacific, may arrive along some exposed west and north facing shores starting on Thursday or Friday. Confidence about the timing and the size of these swells remains low at this time.

HFO WATCHES/WARNINGS/ADVISORIES. Small Craft Advisory until 6 AM HST Tuesday for Maalaea Bay- Pailolo Channel-Alenuihaha Channel-Big Island Leeward Waters-Big Island Southeast Waters.



DISCUSSION . Gibbs AVIATION . Powell MARINE . Bohlin


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
On 03/09/2021 the NDBC primary processing servers were shut off due to a facilities issue. Station pages on the NDBC website are not updating and there is no ETR at this time. We will update this banner as we learn more.
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ILOH1 - 1617760 - Hilo, HI 1 mi65 min E 8 G 13 74°F 80°F1016.4 hPa
KWHH1 45 mi65 min SW 1 G 4.1 82°F 84°F1014.7 hPa

Wind History for Hilo, Hilo Bay, Kuhio Bay, HI
(wind in knots)    EDIT      (on/off)   Help
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
Last
24hr
E3
G6
E3
G6
E3
SE3
G7
SW1
SW1
NW1
W3
W3
G6
S2
SW1
G4
SW1
NW4
W1
NE7
G11
NE8
E4
G12
NE9
NE6
G9
NE8
G11
E6
G9
E5
G10
E3
G8
E8
G12
1 day
ago
--
W3
SW2
SW1
G4
W1
SW2
W3
S2
G6
SW1
G4
SW2
S1
W1
W4
W3
NW4
NE3
G6
E8
G13
NE6
G9
E4
G7
SE3
G7
SE3
G7
--
E2
G5
E3
G7
2 days
ago
SE2
S1
SW1
--
NW2
N3
NE6
NE8
N4
SE4
G7
N5
N3
SE2
E5
SE1
S1

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hilo, Hilo International Airport, HI1 mi66 minE 129.00 miOvercast74°F71°F91%1017.4 hPa

Link to 5 minute data for PHTO

Wind History from HTO (wind in knots)
9
PM
10
PM
11
PM
-12
PM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
Last 24hrE6CalmCalmSW3CalmSW4CalmW3W5SW7W4W4NW6E9NE10NE11NE6NE10E9NE10E10E6E12E11
1 day agoW4W3W3N4W5W4W6W7SW4W6SW5W5W43NE10E9E6E9E7E12
G15
SE5SE3E8E7
2 days ago33E5----SW4SW5S3CalmSW5SW5CalmCalmNE6NE7E6E11SE8NE7E4SE3E3CalmS3

Tide / Current Tables for Hilo, Hawaii Island, Hawaii
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Hilo
Click for Map
Tue -- 12:20 AM HST     0.26 feet Low Tide
Tue -- 05:44 AM HST     1.47 feet High Tide
Tue -- 05:54 AM HST     Sunrise
Tue -- 09:25 AM HST     Moonset
Tue -- 10:51 AM HST     0.46 feet Low Tide
Tue -- 05:41 PM HST     2.45 feet High Tide
Tue -- 06:58 PM HST     Sunset
Tue -- 10:06 PM HST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.30.30.50.91.21.41.51.31.10.80.50.50.60.91.31.72.12.42.42.31.91.510.6

Tide / Current Tables for Kawaihae, Big Island, Hawaii (2)
   EDIT      (on/off)   Help   One Week of Data
Kawaihae
Click for Map
Tue -- 01:16 AM HST     0.16 feet Low Tide
Tue -- 05:57 AM HST     Sunrise
Tue -- 06:44 AM HST     0.97 feet High Tide
Tue -- 09:28 AM HST     Moonset
Tue -- 11:47 AM HST     0.36 feet Low Tide
Tue -- 06:41 PM HST     1.95 feet High Tide
Tue -- 07:02 PM HST     Sunset
Tue -- 10:10 PM HST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.30.20.20.40.60.80.910.90.70.50.40.40.50.711.41.71.91.91.81.51.10.8

Weather Map
       (on/off)   Help Weather Map
wmap_P
GEOS Local Image of Hawaii    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Please read website Cookie, Privacy, and Disclamers by clicking HERE.