NISSEQUOGUE RIVER AT LANDING AVE AT SMITHTOWN, NY
USGS 01304010 · New York · reports water temperature, dissolved oxygen, pH, turbidity, specific conductance
Reading NISSEQUOGUE RIVER AT LANDING AVE AT SMITHTOWN, NY…
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USGS 01304010 · New York · reports water temperature, dissolved oxygen, pH, turbidity, specific conductance
What the agencies suggest
Carry a pocket thermometer to monitor water temperatureNational Park Service
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 9:00 PM EST · provisional USGS data
No flow at this gauge. USGS does not publish discharge here, so there are no flow statistics either; it reports what is shown. We found no other gauge on the same river that publishes flow.
Water temperature, last 7 days: 169 readings from Oct 29, 10:12 PM EDT to Nov 5, 9:00 PM EST; ranging 47.5 to 62.6 °F; latest 62.6 °F.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Water temperature (°F) |
|---|---|
| Nov 5, 9:00 PM EST | 62.6 |
| Nov 5, 8:00 PM EST | 61.7 |
| Nov 5, 7:00 PM EST | 61 |
| Nov 5, 6:00 PM EST | 60.8 |
| Nov 5, 5:00 PM EST | 61 |
| Nov 5, 4:00 PM EST | 61.3 |
| Nov 5, 3:00 PM EST | 61.3 |
| Nov 5, 2:00 PM EST | 60.8 |
| Nov 5, 1:00 PM EST | 59.5 |
| Nov 5, 12:00 PM EST | 58.3 |
| Nov 5, 11:00 AM EST | 58.1 |
| Nov 5, 10:00 AM EST | 59 |
| Nov 5, 9:00 AM EST | 60.3 |
| Nov 5, 8:00 AM EST | 59.7 |
| Nov 5, 7:00 AM EST | 58.1 |
| Nov 5, 6:00 AM EST | 56.1 |
| Nov 5, 5:00 AM EST | 55.9 |
| Nov 5, 4:00 AM EST | 56.1 |
| Nov 5, 3:00 AM EST | 56.1 |
| Nov 5, 2:00 AM EST | 56.3 |
| Nov 5, 1:00 AM EST | 56.5 |
| Nov 5, 12:00 AM EST | 57 |
| Nov 4, 11:00 PM EST | 57.6 |
| Nov 4, 10:00 PM EST | 57.9 |
| Nov 4, 9:00 PM EST | 59 |
| Nov 4, 8:00 PM EST | 60.1 |
| Nov 4, 7:00 PM EST | 58.6 |
| Nov 4, 6:00 PM EST | 58.5 |
| Nov 4, 5:00 PM EST | 58.3 |
| Nov 4, 4:00 PM EST | 58.6 |
| Nov 4, 3:00 PM EST | 58.8 |
| Nov 4, 2:00 PM EST | 58.3 |
| Nov 4, 1:00 PM EST | 56.8 |
| Nov 4, 12:00 PM EST | 54.3 |
| Nov 4, 11:00 AM EST | 52.9 |
| Nov 4, 10:00 AM EST | 53.1 |
| Nov 4, 9:00 AM EST | 54.1 |
| Nov 4, 8:00 AM EST | 56.1 |
| Nov 4, 7:00 AM EST | 55.4 |
| Nov 4, 6:00 AM EST | 53.8 |
| Nov 4, 5:00 AM EST | 52.3 |
| Nov 4, 4:00 AM EST | 52.3 |
| Nov 4, 3:00 AM EST | 52.7 |
| Nov 4, 2:00 AM EST | 53.1 |
| Nov 4, 1:00 AM EST | 53.4 |
| Nov 4, 12:00 AM EST | 54.1 |
| Nov 3, 11:00 PM EST | 55 |
| Nov 3, 10:00 PM EST | 55.8 |
| Nov 3, 9:00 PM EST | 56.3 |
| Nov 3, 8:00 PM EST | 57.4 |
| Nov 3, 7:00 PM EST | 58.5 |
| Nov 3, 6:00 PM EST | 57.2 |
| Nov 3, 5:00 PM EST | 56.5 |
| Nov 3, 4:00 PM EST | 56.7 |
| Nov 3, 3:00 PM EST | 56.5 |
| Nov 3, 2:00 PM EST | 55.9 |
| Nov 3, 1:00 PM EST | 54.9 |
| Nov 3, 12:00 PM EST | 53.4 |
| Nov 3, 11:00 AM EST | 51.8 |
| Nov 3, 10:00 AM EST | 50 |
| Nov 3, 9:00 AM EST | 49.6 |
| Nov 3, 8:00 AM EST | 50.7 |
| Nov 3, 7:00 AM EST | 51.6 |
| Nov 3, 6:00 AM EST | 52 |
| Nov 3, 5:00 AM EST | 50.7 |
| Nov 3, 4:00 AM EST | 50.4 |
| Nov 3, 3:00 AM EST | 50.4 |
| Nov 3, 2:00 AM EST | 50.9 |
| Nov 3, 1:00 AM EST | 51.3 |
| Nov 3, 12:00 AM EST | 51.8 |
| Nov 2, 11:00 PM EST | 52.3 |
| Nov 2, 10:00 PM EST | 53.2 |
| Nov 2, 9:00 PM EST | 54 |
| Nov 2, 8:00 PM EST | 54.5 |
| Nov 2, 7:00 PM EST | 55.8 |
| Nov 2, 6:00 PM EST | 57.7 |
| Nov 2, 5:00 PM EST | 56.3 |
| Nov 2, 4:00 PM EST | 55 |
| Nov 2, 3:00 PM EST | 55.2 |
| Nov 2, 2:00 PM EST | 54.7 |
| Nov 2, 1:00 PM EST | 53.6 |
| Nov 2, 12:00 PM EST | 52.2 |
| Nov 2, 11:00 AM EST | 50.7 |
| Nov 2, 10:00 AM EST | 48.7 |
| Nov 2, 9:00 AM EST | 47.5 |
| Nov 2, 8:00 AM EST | 47.7 |
| Nov 2, 7:00 AM EST | 49.1 |
| Nov 2, 6:00 AM EST | 49.8 |
| Nov 2, 5:00 AM EST | 50.5 |
| Nov 2, 4:00 AM EST | 49.8 |
| Nov 2, 3:00 AM EST | 49.1 |
| Nov 2, 2:00 AM EST | 49.3 |
| Nov 2, 1:00 AM EST | 49.8 |
| Nov 2, 12:00 AM EST | 50.4 |
| Nov 1, 11:00 PM EST | 50.9 |
| Nov 1, 10:00 PM EST | 51.6 |
| Nov 1, 9:00 PM EST | 52.3 |
| Nov 1, 8:00 PM EST | 53.2 |
| Nov 1, 7:00 PM EST | 53.6 |
| Nov 1, 6:00 PM EST | 55 |
| Nov 1, 5:00 PM EST | 57.6 |
| Nov 1, 4:00 PM EST | 57 |
| Nov 1, 3:00 PM EST | 53.6 |
| Nov 1, 2:00 PM EST | 54 |
| Nov 1, 1:00 PM EST | 53.2 |
| Nov 1, 12:00 PM EST | 52 |
| Nov 1, 11:00 AM EST | 50.4 |
| Nov 1, 10:00 AM EST | 48.9 |
| Nov 1, 9:00 AM EST | 47.7 |
| Nov 1, 8:00 AM EST | 47.5 |
| Nov 1, 7:00 AM EST | 48.2 |
| Nov 1, 6:00 AM EST | 49.8 |
| Nov 1, 5:00 AM EST | 50.9 |
| Nov 1, 4:00 AM EST | 51.4 |
| Nov 1, 3:00 AM EST | 50.7 |
| Nov 1, 2:00 AM EST | 49.6 |
| Nov 1, 1:00 AM EST | 49.8 |
| Nov 1, 1:00 AM EDT | 50.4 |
| Nov 1, 12:00 AM EDT | 51.1 |
| Oct 31, 11:00 PM EDT | 51.8 |
| Oct 31, 10:00 PM EDT | 52.7 |
| Oct 31, 9:00 PM EDT | 53.6 |
| Oct 31, 8:00 PM EDT | 54.3 |
| Oct 31, 7:00 PM EDT | 55 |
| Oct 31, 6:00 PM EDT | 56.5 |
| Oct 31, 5:00 PM EDT | 57.4 |
| Oct 31, 4:00 PM EDT | 57.2 |
| Oct 31, 3:00 PM EDT | 55.6 |
| Oct 31, 2:00 PM EDT | 54.3 |
| Oct 31, 1:00 PM EDT | 53.4 |
| Oct 31, 12:00 PM EDT | 52.2 |
| Oct 31, 11:00 AM EDT | 51.1 |
| Oct 31, 10:00 AM EDT | 50.2 |
| Oct 31, 9:00 AM EDT | 50 |
| Oct 31, 8:00 AM EDT | 50.4 |
| Oct 31, 7:00 AM EDT | 51.1 |
| Oct 31, 6:00 AM EDT | 52.7 |
| Oct 31, 5:00 AM EDT | 53.1 |
| Oct 31, 4:00 AM EDT | 53.2 |
| Oct 31, 3:00 AM EDT | 53.6 |
| Oct 31, 2:00 AM EDT | 52.9 |
| Oct 31, 1:00 AM EDT | 53.2 |
| Oct 31, 12:00 AM EDT | 54 |
| Oct 30, 11:00 PM EDT | 54.7 |
| Oct 30, 10:00 PM EDT | 55.4 |
| Oct 30, 9:00 PM EDT | 56.3 |
| Oct 30, 8:00 PM EDT | 57.6 |
| Oct 30, 7:00 PM EDT | 58.1 |
| Oct 30, 6:00 PM EDT | 58.6 |
| Oct 30, 5:00 PM EDT | 60.3 |
| Oct 30, 4:00 PM EDT | 60.6 |
| Oct 30, 3:00 PM EDT | 60.4 |
| Oct 30, 2:00 PM EDT | 58.8 |
| Oct 30, 1:00 PM EDT | 56.8 |
| Oct 30, 12:00 PM EDT | 55.8 |
| Oct 30, 11:00 AM EDT | 54.3 |
| Oct 30, 10:00 AM EDT | 53.2 |
| Oct 30, 9:00 AM EDT | 52.7 |
| Oct 30, 8:00 AM EDT | 52.3 |
| Oct 30, 7:00 AM EDT | 52.5 |
| Oct 30, 6:00 AM EDT | 53.1 |
| Oct 30, 5:00 AM EDT | 54 |
| Oct 30, 4:00 AM EDT | 54.5 |
| Oct 30, 3:00 AM EDT | 54.7 |
| Oct 30, 2:00 AM EDT | 54.5 |
| Oct 30, 1:00 AM EDT | 54.1 |
| Oct 30, 12:00 AM EDT | 54.3 |
| Oct 29, 11:00 PM EDT | 54.9 |
| Oct 29, 10:12 PM EDT | 55 |
Map of USGS gauge 01304010 and the river around it
Where NISSEQUOGUE RIVER AT LANDING AVE AT SMITHTOWN, NY sits and our water's map point.
Under New York DEC's 70°F line. Water 62.6°F now; the highest in the last 24 hours was 62.6°F. That is not over the 70°F above which New York DEC says “trout and salmon can experience physical stress”. “Fish early in the day. Stream temperatures are at their coolest in the early morning hours.”
DEC Asks Anglers to Help Heat-Stressed Trout and Salmon (28 June 2019) (New York State Department of Environmental Conservation)This gauge is on our page for Nissequogue River, but no agency page we read lists its species.
Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Dissolved oxygen 8.6 mg/L at Nov 5, 9:00 PM EST; 7-day range 7.6–11.5 mg/L
Enough oxygen for coldwater fish: 8.6 mg/L meets the 6.5 mg/L EPA sets for coldwater fish (other life stages; eggs and fry need a 8 mg/L minimum).
Quality Criteria for Water 1986 (“Gold Book”): dissolved oxygen, Table 1; pH (U.S. Environmental Protection Agency)pH 7.5 at Nov 5, 9:00 PM EST; 7-day range 6.7–7.9
Within EPA's freshwater range: pH 7.5 is within the 6.5–9 range EPA gives for freshwater aquatic life.
Quality Criteria for Water 1986 (“Gold Book”): dissolved oxygen, Table 1; pH (U.S. Environmental Protection Agency)Turbidity 7.7 FNU at Nov 5, 9:00 PM EST; 7-day range 2.5–26.8 FNU
Water clarity: Turbidity measures the relative clarity of water: higher means murkier. No agency publishes a fishing threshold for it; compare with this gauge's own recent readings.
Turbidity and Water (U.S. Geological Survey)Specific conductance 19,500 µS/cm at Nov 5, 9:00 PM EST; 7-day range 321–30,600 µS/cm
Dissolved ions: Specific conductance rises with the ions dissolved in the water. No fishing threshold is published for it; compare with this gauge's own recent readings.
Conductivity (Electrical Conductance) and Water (U.S. Geological Survey)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
The National Weather Service has no flood-stage gauge here, so no official flood category is shown.
Checked Nov 5, 9:11 PM EST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.