New York waters › Mongaup River, Sullivan County
Mongaup River fishing conditions
Sullivan County, New York · 1 listed access point
Right now
| Water temperature | 20.7 °C (69 °F) MONGAUP R BELOW SWINGING BRIDGE RESERVOIR NY, 11.3 mi away, 53 min ago |
|---|---|
| Flow | 121 ft³/s 53 min ago |
| Gauge height | 4.11 ft 53 min ago |
USGS gauge 01433005. A gauge is not in the water you are standing in: this one is 11.3 miles from the listed access point.
Is this normal for September 1?
| Flow | 49th percentile — about usual for this time of year Ranked against 112 readings from this gauge within a week of this date across 8 years |
|---|---|
| Water temperature | 88th percentile — higher than usual for this time of year Ranked against 112 readings from this gauge within a week of this date across 8 years |
A percentile is a rank among this gauge's own past readings, not a judgement about fishing. High water and low water are each good for some things and bad for others.
Forecast
| This Afternoon | 76°F, wind 5 mph Showers And Thunderstorms |
|---|---|
| Tonight | 61°F, wind 2 mph Chance Showers And Thunderstorms |
| Wednesday | 70°F, wind 2 to 6 mph Cloudy then Chance Showers And Thunderstorms |
| Wednesday Night | 61°F, wind 5 mph Showers And Thunderstorms |
Species
Listed by DEC for this water: Brown Trout*.
Stocking, 2011–2025
| Year | Fish released |
|---|---|
| 2025 | 880 |
| 2024 | 840 |
| 2023 | 830 |
| 2022 | 830 |
| 2021 | 830 |
| 2020 | 620 |
| 2019 | 730 |
| 2018 | 720 |
| 2017 | 690 |
| 2016 | 720 |
| 2015 | 710 |
| 2014 | 730 |
| 2013 | 620 |
| 2012 | 740 |
| 2011 | 710 |
DEC most often recorded stocking here in April. That is when fish were released, which is not the same as when fishing is good.
By species: Brown Trout 11,200.
Access points
| Location | Nearest gauge |
|---|---|
| 41.7213, -74.7095 · Sullivan | 11.3 mi |
Nearby monitored waters
Neversink River
5 mi · Sullivan County · 16.6°C
Willowemoc Creek
13 mi · Sullivan County · 17.5°C
Beaver Kill
19 mi · Sullivan County · 18.1°C
Regulations
This water has special regulations. Read them on the NY DEC site before fishing. Seasons and limits are not reproduced here.