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)
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Stations with recent data
Stations with no data in last 8 hours
(24 hours for tsunami stations)
Stations with recent data Stations with no data in last 8 hours(24 hours for tsunami stations)
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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 |
 Ocean Temperature (OTMP): | 77.90 °F |
| Oxygen Saturation (O2PCT): | 33.9% |
| Oxygen Concentration (O2PPM): | 2.80 ppm |
| Turbidity (TURB): | 17 FTU |
| pH (PH): | 7.10 |
| TIME (HST) |
DEPTH ft |
OTMP °F |
COND mS/cm |
SAL psu |
O2% % |
O2PPM ppm |
CLCON ug/l |
TURB FTU |
PH |
EH mV |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-06-17 11:00 pm | 1.0 | 77.90 | - | - | 34.20 | 2.80 | - | 17 | 7.10 | - |
| 2026-06-17 10:45 pm | 1.0 | 78.08 | - | - | 34.40 | 2.80 | - | 17 | 7.10 | - |
| 2026-06-17 10:30 pm | 1.0 | 78.08 | - | - | 34.70 | 2.80 | - | 17 | 7.10 | - |
| 2026-06-17 10:15 pm | 1.0 | 78.26 | - | - | 34.90 | 2.80 | - | 17 | 7.00 | - |
| 2026-06-17 10:00 pm | 1.0 | 78.44 | - | - | 34.90 | 2.80 | - | 16 | 7.00 | - |
| 2026-06-17 09:45 pm | 1.3 | 78.62 | - | - | 35.10 | 2.80 | - | 16 | 7.10 | - |
| 2026-06-17 09:30 pm | 1.3 | 78.80 | - | - | 35.70 | 2.90 | - | 16 | 7.10 | - |
| 2026-06-17 09:15 pm | 1.3 | 78.98 | 5.52 | - | 36.80 | 2.90 | - | 15 | 7.20 | - |
| 2026-06-17 09:00 pm | 1.3 | 79.34 | 6.48 | - | 38.00 | 3.00 | - | 14 | 7.20 | - |
| 2026-06-17 08:45 pm | 1.3 | 79.52 | 10.30 | 5.80 | 39.90 | 3.10 | - | 14 | 7.30 | - |
| 2026-06-17 08:30 pm | 1.6 | 80.24 | 22.95 | 13.80 | 43.50 | 3.20 | - | 11 | 7.40 | - |
| 2026-06-17 08:15 pm | 1.6 | 81.68 | 42.30 | 27.10 | 55.60 | 3.80 | - | 6 | 7.70 | - |
| 2026-06-17 08:00 pm | 1.6 | 81.86 | 43.67 | 28.10 | 62.40 | 4.20 | - | 6 | 7.80 | - |
| 2026-06-17 07:45 pm | 1.6 | 82.04 | 44.30 | 28.50 | 66.00 | 4.40 | - | 6 | 7.80 | - |
| 2026-06-17 07:30 pm | 1.6 | 82.04 | 44.46 | 28.60 | 67.70 | 4.50 | - | 5 | 7.80 | - |
| 2026-06-17 07:15 pm | 1.6 | 82.22 | 45.14 | 29.10 | 73.00 | 4.90 | - | 5 | 7.90 | - |
| 2026-06-17 07:00 pm | 2.0 | 82.22 | 44.59 | 28.70 | 79.00 | 5.30 | - | 5 | 7.90 | - |
| 2026-06-17 06:45 pm | 2.0 | 81.32 | 43.44 | 27.90 | 91.70 | 6.20 | - | 3 | 7.90 | - |
| 2026-06-17 06:30 pm | 2.0 | 81.14 | 44.04 | 28.40 | 94.50 | 6.40 | - | 3 | 8.00 | - |
| 2026-06-17 06:15 pm | 2.0 | 81.14 | 43.84 | 28.20 | 97.60 | 6.60 | - | 2 | 8.00 | - |
| 2026-06-17 06:00 pm | 1.6 | 81.32 | 43.63 | 28.10 | 98.90 | 6.70 | - | 2 | 8.00 | - |
| 2026-06-17 05:45 pm | 1.6 | 81.50 | 42.12 | 27.00 | 99.20 | 6.70 | - | 3 | 8.00 | - |
| 2026-06-17 05:30 pm | 1.6 | 81.50 | 41.37 | 26.40 | 100.80 | 6.90 | - | 3 | 8.00 | - |
| 2026-06-17 05:15 pm | 1.6 | 81.68 | 40.92 | 26.10 | 101.50 | 6.90 | - | 4 | 8.00 | - |
| 2026-06-17 05:00 pm | 1.3 | 81.68 | 39.11 | 24.80 | 101.30 | 7.00 | - | 4 | 7.90 | - |
| 2026-06-17 04:45 pm | 1.3 | 81.86 | 38.03 | 24.10 | 98.80 | 6.80 | - | 5 | 7.90 | - |
| 2026-06-17 04:30 pm | 1.3 | 81.86 | 36.75 | 23.20 | 96.40 | 6.70 | - | 5 | 7.90 | - |
| 2026-06-17 04:15 pm | 1.0 | 82.04 | 34.88 | 21.90 | 93.80 | 6.50 | - | 6 | 7.80 | - |
| 2026-06-17 04:00 pm | 1.0 | 82.04 | 33.37 | 20.80 | 92.90 | 6.50 | - | 7 | 7.80 | - |
| 2026-06-17 03:45 pm | 1.0 | 82.04 | 29.86 | 18.40 | 89.90 | 6.40 | - | 9 | 7.70 | - |
| 2026-06-17 03:30 pm | 0.7 | 82.04 | 28.75 | 17.70 | 88.90 | 6.30 | - | 10 | 7.60 | - |
| 2026-06-17 03:15 pm | 0.7 | 82.04 | 25.64 | 15.60 | 85.90 | 6.20 | - | 11 | 7.60 | - |
| 2026-06-17 03:00 pm | 0.7 | 82.04 | 23.96 | 14.50 | 84.10 | 6.10 | - | 11 | 7.50 | - |
| 2026-06-17 02:45 pm | 0.3 | 81.86 | 21.31 | 12.70 | 80.40 | 5.90 | - | 12 | 7.40 | - |
| 2026-06-17 02:30 pm | 0.3 | 81.86 | 18.83 | 11.10 | 77.10 | 5.70 | - | 12 | 7.30 | - |
| 2026-06-17 02:15 pm | 0.3 | 81.86 | 13.48 | 7.70 | 71.00 | 5.40 | - | 15 | 7.20 | - |
| 2026-06-17 02:00 pm | 0.3 | 81.86 | 10.51 | 5.90 | 63.50 | 4.80 | - | 16 | 7.10 | - |
| 2026-06-17 01:45 pm | 0.3 | 81.50 | 6.93 | - | 58.80 | 4.60 | - | 16 | 7.00 | - |
| 2026-06-17 01:30 pm | 0.3 | 81.14 | - | - | 53.00 | 4.10 | - | 17 | 6.90 | - |
| 2026-06-17 01:15 pm | 0.3 | 80.96 | - | - | 50.00 | 4.00 | - | 16 | 7.00 | - |
| 2026-06-17 01:00 pm | 0.3 | 81.14 | - | - | 49.90 | 4.00 | - | 18 | 7.00 | - |
| 2026-06-17 12:45 pm | 0.0 | 81.14 | - | - | 49.60 | 3.90 | - | 17 | 7.00 | - |
| 2026-06-17 12:30 pm | 0.0 | 80.96 | - | - | 49.20 | 3.90 | - | 17 | 7.00 | - |
| 2026-06-17 12:15 pm | 0.0 | 80.96 | - | - | 49.50 | 3.90 | - | 18 | 7.00 | - |
| 2026-06-17 12:00 pm | 0.0 | 80.78 | - | - | 49.10 | 3.90 | - | 17 | 7.00 | - |
| 2026-06-17 11:45 am | 0.0 | 80.78 | - | - | 48.80 | 3.90 | - | 18 | 7.00 | - |
| 2026-06-17 11:30 am | 0.0 | 80.60 | - | - | 48.10 | 3.80 | - | 17 | 7.00 | - |
| 2026-06-17 11:15 am | 0.0 | 80.24 | - | - | 48.20 | 3.90 | - | 17 | 7.00 | - |
| 2026-06-17 11:00 am | 0.0 | 80.06 | - | - | 47.60 | 3.80 | - | 17 | 7.00 | - |
| 2026-06-17 10:45 am | 0.3 | 79.88 | - | - | 46.90 | 3.80 | - | 17 | 7.00 | - |
| 2026-06-17 10:30 am | 0.3 | 79.52 | - | - | 46.40 | 3.70 | - | 17 | 7.00 | - |
| 2026-06-17 10:15 am | 0.3 | 79.16 | - | - | 45.70 | 3.70 | - | 17 | 7.00 | - |
| 2026-06-17 10:00 am | 0.3 | 78.98 | - | - | 45.20 | 3.70 | - | 17 | 7.00 | - |
| 2026-06-17 09:45 am | 0.3 | 78.62 | - | - | 44.60 | 3.60 | - | 17 | 7.00 | - |
| 2026-06-17 09:30 am | 0.3 | 78.26 | - | - | 44.30 | 3.60 | - | 17 | 7.00 | - |
| 2026-06-17 09:15 am | 0.3 | 78.08 | - | - | 43.80 | 3.60 | - | 17 | 7.00 | - |
| 2026-06-17 09:00 am | 0.3 | 77.72 | - | - | 43.10 | 3.50 | - | 18 | 7.00 | - |
| 2026-06-17 08:45 am | 0.3 | 77.36 | - | - | 42.30 | 3.50 | - | 18 | 7.00 | - |
| 2026-06-17 08:30 am | 0.3 | 77.18 | - | - | 42.00 | 3.50 | - | 17 | 7.00 | - |
| 2026-06-17 08:15 am | 0.3 | 77.00 | - | - | 41.70 | 3.40 | - | 18 | 7.00 | - |
| 2026-06-17 08:00 am | 0.3 | 76.82 | - | - | 41.50 | 3.40 | - | 18 | 7.00 | - |
| 2026-06-17 07:45 am | 0.3 | 76.64 | - | - | 41.60 | 3.40 | - | 18 | 7.00 | - |
| 2026-06-17 07:30 am | 0.3 | 76.64 | - | - | 41.30 | 3.40 | - | 18 | 7.00 | - |
| 2026-06-17 07:15 am | 0.3 | 76.46 | - | - | 40.90 | 3.40 | - | 17 | 7.00 | - |
| 2026-06-17 07:00 am | 0.3 | 76.46 | - | - | 40.30 | 3.40 | - | 19 | 7.00 | - |
| 2026-06-17 06:45 am | 0.3 | 76.28 | - | - | 40.10 | 3.30 | - | 18 | 7.00 | - |
| 2026-06-17 06:30 am | 0.3 | 76.28 | - | - | 40.20 | 3.30 | - | 18 | 7.00 | - |
| 2026-06-17 06:15 am | 0.3 | 76.28 | - | - | 40.30 | 3.40 | - | 19 | 7.00 | - |
| 2026-06-17 06:00 am | 0.3 | 76.28 | - | - | 40.10 | 3.30 | - | 19 | 7.00 | - |
| 2026-06-17 05:45 am | 0.3 | 76.46 | - | - | 39.80 | 3.30 | - | 17 | 7.00 | - |
| 2026-06-17 05:30 am | 0.3 | 76.46 | - | - | 39.70 | 3.30 | - | 17 | 7.00 | - |
| 2026-06-17 05:15 am | 0.3 | 76.46 | - | - | 39.70 | 3.30 | - | 17 | 7.00 | - |
| 2026-06-17 05:00 am | 0.3 | 76.46 | - | - | 40.10 | 3.30 | - | 17 | 7.00 | - |
| 2026-06-17 04:45 am | 0.3 | 76.46 | - | - | 40.40 | 3.40 | - | 16 | 7.00 | - |
| 2026-06-17 04:30 am | 0.3 | 76.64 | - | - | 40.30 | 3.30 | - | 17 | 7.00 | - |
| 2026-06-17 04:15 am | 0.3 | 76.64 | - | - | 40.20 | 3.30 | - | 17 | 7.00 | - |
| 2026-06-17 04:00 am | 0.3 | 76.64 | - | - | 40.10 | 3.30 | - | 16 | 7.00 | - |
| 2026-06-17 03:45 am | 0.3 | 76.82 | - | - | 39.70 | 3.30 | - | 16 | 7.00 | - |
| 2026-06-17 03:30 am | 0.3 | 76.82 | - | - | 39.70 | 3.30 | - | 17 | 7.00 | - |
| 2026-06-17 03:15 am | 0.3 | 76.82 | - | - | 39.60 | 3.30 | - | 16 | 7.00 | - |
| 2026-06-17 03:00 am | 0.3 | 77.00 | - | - | 39.20 | 3.20 | - | 17 | 7.00 | - |
| 2026-06-17 02:45 am | 0.3 | 77.00 | - | - | 38.80 | 3.20 | - | 16 | 7.00 | - |
| 2026-06-17 02:30 am | 0.3 | 77.18 | - | - | 38.40 | 3.20 | - | 17 | 7.00 | - |
| 2026-06-17 02:15 am | 0.7 | 77.18 | - | - | 38.30 | 3.20 | - | 16 | 7.00 | - |
| 2026-06-17 02:00 am | 0.7 | 77.18 | - | - | 38.20 | 3.10 | - | 17 | 7.00 | - |
| 2026-06-17 01:45 am | 0.7 | 77.36 | - | - | 38.10 | 3.10 | - | 17 | 7.00 | - |
| 2026-06-17 01:30 am | 0.7 | 77.36 | - | - | 38.20 | 3.10 | - | 16 | 7.00 | - |
| 2026-06-17 01:15 am | 0.7 | 77.54 | - | - | 37.90 | 3.10 | - | 17 | 7.00 | - |
| 2026-06-17 01:00 am | 0.7 | 77.54 | - | - | 38.10 | 3.10 | - | 17 | 7.00 | - |
Historical data for station HWWH1 are available at the NERRS website.
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