Station List

Station HWWH1 - Wai 2, He'eia Reserve, HI

Owned and maintained by National Estuarine Research Reserve System
Water Quality Station
21.438 N 157.811 W (21°26'18" N 157°48'39" W)

Meteorological Observations from Nearby Stations and Ships Image indicating link to RSS feed of recent meteorological observations near station HWWH1

Large icon indicates selected station.
yellow diamond Stations with recent data
red diamond Stations with no data in last 8 hours
(24 hours for tsunami stations)

Ocean Conditions at HWWH1 as of
(3:15 am HAST)
1315 GMT on 12/29/2025:

These oceanographic data are displayed in rounded times.

     

Click on the graph icon in the table below to see a time series plot of the last five days of that observation.

Depth (DEPTH): 1.0 ft
5-day plot - Ocean Temperature Ocean Temperature (OTMP):72.86 °F
5-day plot - Oxygen Saturation Oxygen Saturation (O2PCT): 6.2%
5-day plot - Oxygen Concentration Oxygen Concentration (O2PPM): 0.50 ppm
5-day plot - Turbidity Turbidity (TURB): 17 FTU
5-day plot - pH pH (PH): 6.90
Previous observations
TIME
(HAST)		 DEPTH
ft		 5-day plot - Ocean Temperature
OTMP
°F		 5-day plot - Conductivity
COND
mS/cm		 5-day plot - Salinity
SAL
psu		 5-day plot - Oxygen Saturation
O2%
%		 5-day plot - Oxygen Concentration
O2PPM
ppm		 5-day plot - Chlorophyll
CLCON
ug/l		 5-day plot - Turbidity
TURB
FTU		 5-day plot - pH
PH
 		 5-day plot - Eh
EH
mV
2025-12-29 03:00 am 1.072.86-- 6.30 0.50- 17 6.90-
2025-12-29 02:45 am 1.073.04-- 6.10 0.50- 17 6.90-
2025-12-29 02:30 am 1.073.04-- 6.50 0.60- 16 6.90-
2025-12-29 02:15 am 1.073.04-- 6.60 0.60- 16 6.90-
2025-12-29 02:00 am 1.073.22-- 6.80 0.60- 17 6.90-
2025-12-29 01:45 am 1.073.22-- 7.00 0.60- 16 6.90-
2025-12-29 01:30 am 1.073.22-- 7.40 0.60- 16 6.90-
2025-12-29 01:15 am 1.073.22-- 7.60 0.70- 16 6.90-
2025-12-29 01:00 am 1.073.22-- 7.90 0.70- 17 6.90-
2025-12-29 12:45 am 1.073.22-- 7.80 0.70- 16 6.90-
2025-12-29 12:30 am 1.073.40-- 7.60 0.70- 17 6.90-
2025-12-29 12:15 am 1.073.40-- 7.80 0.70- 17 6.90-
2025-12-29 12:00 am 1.073.40-- 7.90 0.70- 17 6.90-
2025-12-28 11:45 pm 1.073.40-- 8.20 0.70- 16 6.90-
2025-12-28 11:30 pm 1.073.40-- 8.60 0.70- 16 6.90-
2025-12-28 11:15 pm 1.073.58-- 9.40 0.80- 17 6.90-
2025-12-28 11:00 pm 1.073.58--10.30 0.90- 17 6.90-
2025-12-28 10:45 pm 1.073.58--11.10 1.00- 17 6.90-
2025-12-28 10:30 pm 1.073.58--11.70 1.00- 16 6.90-
2025-12-28 10:15 pm 1.073.76--12.60 1.10- 16 6.90-
2025-12-28 10:00 pm 1.073.76--13.30 1.10- 17 6.90-
2025-12-28 09:45 pm 0.773.76--14.30 1.20- 18 6.90-
2025-12-28 09:30 pm 0.773.76--15.10 1.30- 17 6.90-
2025-12-28 09:15 pm 0.773.76--15.60 1.30- 17 6.90-
2025-12-28 09:00 pm 0.773.94--16.00 1.40- 16 6.90-
2025-12-28 08:45 pm 0.773.94--17.20 1.50- 16 6.90-
2025-12-28 08:30 pm 0.773.94--18.70 1.60- 16 6.90-
2025-12-28 08:15 pm 0.374.12--19.20 1.60- 17 6.90-
2025-12-28 08:00 pm 0.374.12--19.90 1.70- 16 6.90-
2025-12-28 07:45 pm 0.374.30--20.30 1.70- 16 6.90-
2025-12-28 07:30 pm 0.374.48--20.80 1.80- 16 6.90-
2025-12-28 07:15 pm 0.374.48--21.50 1.80- 17 6.90-
2025-12-28 07:00 pm 0.374.66--22.20 1.90- 16 6.90-
2025-12-28 06:45 pm 0.374.84--22.80 1.90- 16 6.90-
2025-12-28 06:30 pm 0.375.20--22.80 1.90- 17 6.90-
2025-12-28 06:15 pm 0.375.38--23.20 2.00- 17 6.90-
2025-12-28 06:00 pm 0.375.56--23.40 2.00- 16 6.90-
2025-12-28 05:45 pm 0.375.92--23.60 2.00- 17 6.90-
2025-12-28 05:30 pm 0.376.10--23.80 2.00- 17 6.90-
2025-12-28 05:15 pm 0.376.46--24.40 2.00- 16 6.90-
2025-12-28 05:00 pm 0.376.64--25.00 2.10- 17 6.90-
2025-12-28 04:45 pm 0.376.82--25.50 2.10- 16 6.90-
2025-12-28 04:30 pm 0.377.00--26.10 2.20- 17 6.90-
2025-12-28 04:15 pm 0.377.36--26.40 2.20- 17 6.90-
2025-12-28 04:00 pm 0.377.54--26.70 2.20- 16 6.90-
2025-12-28 03:45 pm 0.377.72--26.90 2.20- 16 6.90-
2025-12-28 03:30 pm 0.377.90--27.20 2.20- 16 6.90-
2025-12-28 03:15 pm 0.377.90--26.70 2.20- 16 6.90-
2025-12-28 03:00 pm 0.377.90--26.50 2.20- 16 6.90-
2025-12-28 02:45 pm 0.377.72--26.40 2.20- 16 6.90-
2025-12-28 02:30 pm 0.377.72--25.80 2.10- 15 6.90-
2025-12-28 02:15 pm 0.377.36--25.10 2.10- 15 6.90-
2025-12-28 02:00 pm 0.377.18--24.80 2.10- 15 6.90-
2025-12-28 01:45 pm 0.377.00--24.60 2.00- 16 6.90-
2025-12-28 01:30 pm 0.376.82--23.60 2.00- 15 6.90-
2025-12-28 01:15 pm 0.376.28--22.90 1.90- 15 6.90-
2025-12-28 01:00 pm 0.375.92--21.70 1.80- 16 6.90-
2025-12-28 12:45 pm 0.375.38--20.60 1.70- 15 6.90-
2025-12-28 12:30 pm 0.374.84--19.30 1.60- 15 6.90-
2025-12-28 12:15 pm 0.774.30--18.60 1.60- 15 6.90-
2025-12-28 12:00 pm 0.773.94--18.60 1.60- 15 6.90-
2025-12-28 11:45 am 0.773.58--18.00 1.50- 15 6.90-
2025-12-28 11:30 am 0.773.22--17.10 1.50- 14 6.90-
2025-12-28 11:15 am 0.773.04--16.20 1.40- 15 6.90-
2025-12-28 11:00 am 0.772.68--15.60 1.40- 15 6.90-
2025-12-28 10:45 am 0.772.32--15.00 1.30- 15 6.90-
2025-12-28 10:30 am 0.771.96--14.60 1.30- 15 6.90-
2025-12-28 10:15 am 0.771.78--14.10 1.20- 14 6.90-
2025-12-28 10:00 am 0.771.60--13.60 1.20- 15 6.90-
2025-12-28 09:45 am 1.071.42--13.50 1.20- 15 6.90-
2025-12-28 09:30 am 1.071.42--13.00 1.10- 15 6.90-
2025-12-28 09:15 am 1.071.24--13.10 1.10- 15 6.90-
2025-12-28 09:00 am 1.071.06--12.90 1.10- 15 6.90-
2025-12-28 08:45 am 1.071.06--13.00 1.10- 15 6.90-
2025-12-28 08:30 am 1.071.06--12.80 1.10- 15 6.90-
2025-12-28 08:15 am 1.070.88--13.00 1.10- 15 6.90-
2025-12-28 08:00 am 1.070.88--12.70 1.10- 15 6.90-
2025-12-28 07:45 am 1.070.88--12.80 1.10- 15 6.90-
2025-12-28 07:30 am 1.070.88--12.60 1.10- 15 6.90-
2025-12-28 07:15 am 1.070.88--12.50 1.10- 15 6.90-
2025-12-28 07:00 am 1.070.88--12.70 1.10- 15 6.90-
2025-12-28 06:45 am 1.071.06--13.00 1.10- 15 6.90-
2025-12-28 06:30 am 1.071.06--13.20 1.20- 15 6.90-
2025-12-28 06:15 am 1.071.06--13.50 1.20- 15 6.90-
2025-12-28 06:00 am 1.071.24--13.80 1.20- 17 6.90-
2025-12-28 05:45 am 1.071.24--13.80 1.20- 15 6.90-
2025-12-28 05:30 am 0.771.24--13.90 1.20- 15 6.90-
2025-12-28 05:15 am 0.771.42--14.10 1.20- 15 6.90-
2025-12-28 05:00 am 0.771.42--14.40 1.30- 15 6.90-
2025-12-28 04:45 am 0.771.42--14.00 1.20- 15 6.90-
2025-12-28 04:30 am 0.771.60--14.20 1.20- 15 6.90-
2025-12-28 04:15 am 0.771.60--14.50 1.30- 15 6.90-
2025-12-28 04:00 am 0.771.60--14.50 1.30- 15 6.90-