Where is Smithtown Bay?

Smithtown Bay is a bay in New York.

What is the water temperature at Smithtown Bay?

As of August 21, 2026, the water temperature at Smithtown Bay in New York is 74°F (24°C), measured by NOAA buoy BRHC3, 16.5 miles away.

Updated June 13, 2026

Smithtown Bay

Bay

Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 74°F, within the comfortable 70–86°F range.

Water temperature is 74°F, within the comfortable 70–86°F range.
Heavy rain today can raise bacteria levels near outfalls and river mouths.

See full conditions ↓Can I swim today? →

Good to swimGood conditions today

bay in Suffolk County, New York, United States

Interactive map not available

Comfortable for a swim today

Good to swim

Comfortable for a swim today: water temperature is 74°F, within the comfortable 70–86°F range.

Water temperature is 74°F, within the comfortable 70–86°F range. — NOAA buoy BRHC3, as of Aug 21, 10:30 PM UTC
Heavy rain today can raise bacteria levels near outfalls and river mouths.

Water temp

74°F

24°C

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

Live data from NOAA buoy BRHC3 (16.5 mi away), as of Aug 21, 10:30 PM UTC.

Live map near here →

Weather at Smithtown Bay

H: 72° L: 65°

Light drizzle

69°

Feels like 71°

Precipitation

91%

Humidity

90%

Wind

7 mph

UV Index

0.1

Water Conditions:

🏊Cool but swimmable🌧️Rain expected

12 AM

65°

3 AM

66°

6 AM

65°

9 AM

67°

12 PM

72°

3 PM

70°

6 PM

69°

9 PM

68°

Pack smarter for Smithtown Bay

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.

Water ShoesA flexible default for slick docks, rough entries, and hot pavement.

Compare on Amazon →

Quick-Dry TowelEasy to pack and useful after swims, spray, or surprise rain.

Compare on Amazon →

Reef-Safe SunscreenA smart baseline for exposed water days.

Compare on Amazon →

Dry BagKeeps clothes and small essentials separated from wet gear.

Compare on Amazon →

Frequently asked questions

Where is Smithtown Bay?: Smithtown Bay is a bay in New York.
What is the water temperature at Smithtown Bay?: As of August 21, 2026, the water temperature at Smithtown Bay in New York is 74°F (24°C), measured by NOAA buoy BRHC3, 16.5 miles away.
Can you swim at Smithtown Bay?: Comfortable for a swim today: water temperature is 74°F, within the comfortable 70–86°F range. Checked August 21, 2026.

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

General Tips:

›Weekday mornings (8–10 AM) are typically less crowded
›Check the forecast 2–3 days ahead for best planning
›Avoid holiday weekends for a quieter experience

Best Seasons:

☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

New York

</> Embed this location on your site

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

<iframe src="https://thewateraroundus.com/embed/location/e1e6718a-be9b-46da-a304-b7db30802525" width="400" height="150" style="border:0" title="Smithtown Bay — The Water Around Us" loading="lazy"></iframe>