Skip to content
Mongaup River - Photo 1
1 / 3
Photo: D&H Mongaup 2018-11-01 575 by Chris Light (CC BY-SA 4.0) License

Mongaup River

River

Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 71°F, within the comfortable 70–86°F range.

  • Water temperature is 71°F, within the comfortable 70–86°F range.
  • Flow is within the normal range (25th–75th percentile) for Aug 22 (median 135 ft³/s over 68 years).
Good to swimGood conditions today

Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 71°F, within the comfortable 70–86°F range.

  • Water temperature is 71°F, within the comfortable 70–86°F range. USGS gauge 01433500, as of Aug 22, 6:15 PM gauge-local time
  • Flow is within the normal range (25th–75th percentile) for Aug 22 (median 135 ft³/s over 68 years). USGS daily streamflow statistics, as of Aug 22, 6:15 PM gauge-local time
Water temp
71°F
22°C
Streamflow
194 ft³/s
discharge
Gage height
1.86 ft
water level

Flow is normal for this date — within the normal range (25th–75th percentile) for Aug 22 (median 135 ft³/s over 68 years).

No official beach-advisory feed for New York yet — follow posted signs and local guidance.

Live, provisional data from USGS gauge MONGAUP RIVER NEAR MONGAUP NY (0.5 mi away), as of Aug 22, 6:15 PM gauge-local time.

Weather at Mongaup River

H: 78° L: 62°
Cloudy
Cloudy
73°
|
Feels like 77°
Precipitation
14%
Humidity
77%
Wind
4 mph
UV Index
0.1
Water Conditions:
🏊Cool but swimmable
12 AM
Cloudy
65°
3 AM
Overcast
63°
6 AM
Overcast
62°
9 AM
Overcast
65°
12 PM
Sunny
74°
3 PM
Partly Cloudy
77°
6 PM
Partly Cloudy
76°
9 PM
Clear
69°

Sponsored gear checklist

Pack smarter for Mongaup River

Useful gear categories for this kind of water spot. These links open Amazon search results so you can compare current options.

As an Amazon Associate we earn from qualifying purchases.

Frequently asked questions

Where is Mongaup River?
Mongaup River is a river in New York.
What is the water temperature at Mongaup River?
As of August 22, 2026, the water temperature at Mongaup River in New York is 71°F (22°C), measured by USGS gauge 01433500, 0.5 miles away.
Can you swim at Mongaup River?
Comfortable for a swim today: water temperature is 71°F, within the comfortable 70–86°F range. Checked August 22, 2026.
How is Mongaup River rated?
Mongaup River in New York has an average visitor rating of 4.8 out of 5, based on 10 reviews.

Visitor Reviews

Be the first to share your experience here

Join our community to share your water adventures

Earn badges as you share your experiences!

💧 Droplet💦 Stream🌊 Wave💧 Current🌀 Tide🌊 Ocean

No reviews yet — share what you know

Been here? A quick note helps the next visitor plan their day. Handy things to mention:

Water temperatureCrowds & parkingBest time to goSafety & access

Best Times to Visit

👍
Right Now
Good conditions for visiting
🌊 Rivers & Streams Tips:
  • Check water levels and current conditions before visiting
  • Wear life jackets when on the water
  • Be aware of rapids and potential hazards
  • Respect private property along riverbanks
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

New York

New York None

</> Embed this location on your site

Paste this snippet into your website to show a live badge for Mongaup River — free to use with the included credit link.