Lake Temperatures

Lake Erie

The reported Lake Erie water temperature is taken at the Buffalo Water Treatment Plant located on Lake Erie at the entrance to the Niagara River. The reading is taken at a depth of 30 feet. This data is unofficial.

Lake Ontario

The reported Lake Ontario water temperature is taken at the Monroe County Water Treatment Plant near Greece, N.Y. The temperatures is measured at the intake pipes about 1500 feet offshore at a approximate depth of 35 feet. The Lake Ontario temperature occasionally may not be representative of the surface temperature due to upwelling. This process, more common during the summer months, brings colder water from the deeper parts of the lake toward the surface near the temperature sensor. The surface water may be significantly warmer. This data is unofficial.

Latest Lake Temperatures

757 AM EDT Sat May 30 2026 The water temperature off Buffalo is 57 degrees.

757 AM EDT Sat May 30 2026 The water temperature off Rochester is 51 degrees.

Monthly Lake Erie Temperatures
January	February	March	April	May	June	July	August	September	October	November	December

Historical Lake Erie Temperatures (Unofficial Normals and Extremes)

The daily lake temperatures for Lake Erie off Buffalo and for Lake Ontario off Rochester are included in the Nearshore Marine Forecast.

Click the link for previous versions of the Nearshore Marine Forecast.

NearShore Marine Forecast

217
FZUS51 KBUF 301404
NSHBUF

Nearshore Marine Forecast
National Weather Service Buffalo NY
1004 AM EDT Sat May 30 2026

For waters within five nautical miles of shore

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

LEZ020-302100-
Upper Niagara River and Buffalo Harbor-
1004 AM EDT Sat May 30 2026

.THIS AFTERNOON...Northeast winds 5 to 15 knots. Sunny.
.TONIGHT...Northeast winds less than 10 knots. Clear.
.SUNDAY...Light and variable winds becoming southwest 5 to
10 knots. Sunny.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots becoming light and
variable. Mainly clear.
.MONDAY...Light and variable winds. Mainly clear.
.TUESDAY...North winds less than 10 knots. Mainly clear, then
becoming partly cloudy.
.WEDNESDAY...Light and variable winds. Mainly clear.

The water temperature off Buffalo is 58 degrees.

$$

LOZ030-302100-
Lower Niagara River-
1004 AM EDT Sat May 30 2026

.THIS AFTERNOON...Northeast winds 5 to 15 knots. Sunny.
.TONIGHT...Northeast winds less than 10 knots. Clear.
.SUNDAY...West winds 10 knots or less. Sunny.
.SUNDAY NIGHT...West winds 5 to 10 knots becoming light and
variable. Mainly clear.
.MONDAY...North winds less than 10 knots. Mainly clear.
.TUESDAY...Northwest winds less than 10 knots. Mainly clear, then
becoming partly cloudy.
.WEDNESDAY...North winds less than 10 knots. Mainly clear.

$$

LEZ040-041-302100-
Buffalo to Ripley along Lake Erie-
1004 AM EDT Sat May 30 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING...

.THIS AFTERNOON...Northeast winds 5 to 15 knots. Sunny. Waves 1 to
3 feet.
.TONIGHT...Northeast winds 5 to 10 knots becoming light and
variable. Clear. Waves 2 feet or less.
.SUNDAY...Light and variable winds becoming southwest 5 to
10 knots. Sunny. Waves 1 foot or less.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots becoming light and
variable. Mainly clear. Waves 1 foot or less.
.MONDAY...Northwest winds less than 10 knots. Mainly clear. Waves
1 foot or less.
.TUESDAY...North winds less than 10 knots. Mainly clear, then
becoming partly cloudy. Waves 1 foot or less.
.WEDNESDAY...Northwest winds less than 10 knots. Mainly clear.
Waves 1 foot or less.

$$

LOZ042-302100-
Niagara River to Hamlin Beach along Lake Ontario-
1004 AM EDT Sat May 30 2026

.THIS AFTERNOON...North winds 10 knots or less becoming northwest.
Sunny. Waves 1 to 2 feet.
.TONIGHT...West winds 10 knots or less. Mainly clear. Waves
1 foot or less.
.SUNDAY...West winds 5 to 15 knots. Sunny. Waves 2 feet or less.
.SUNDAY NIGHT...West winds 5 to 15 knots becoming northwest less
than 10 knots. Partly cloudy. Waves 2 feet or less.
.MONDAY...North winds less than 10 knots. Mainly clear. Waves
1 foot or less.
.TUESDAY...Northwest winds 10 knots or less. Mainly clear, then
becoming partly cloudy. Waves 1 foot or less.
.WEDNESDAY...North winds less than 10 knots becoming southwest.
Mainly clear. Waves 1 foot or less.

$$

LOZ043-302100-
Hamlin Beach to Sodus Bay along Lake Ontario
including Irondequoit Bay-
1004 AM EDT Sat May 30 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

.THIS AFTERNOON...North winds 5 to 15 knots becoming northwest.
Mostly sunny. Waves 3 to 5 feet subsiding to 1 to 2 feet. Waves
occasionally around 6 feet.
.TONIGHT...Northwest winds 10 knots or less becoming west. Mainly
clear. Waves 2 feet or less.
.SUNDAY...West winds 5 to 15 knots. Mostly sunny. Waves 2 feet or
less.
.SUNDAY NIGHT...West winds 5 to 15 knots becoming northwest less
than 10 knots. Partly cloudy. Waves 1 to 2 feet.
.MONDAY...North winds less than 10 knots. Mainly clear. Waves
1 foot or less.
.TUESDAY...Northwest winds 10 knots or less. Mainly clear, then
becoming partly cloudy. Waves 1 foot or less.
.WEDNESDAY...North winds less than 10 knots. Mainly clear. Waves
1 foot or less.

The water temperature off Rochester is 51 degrees.

$$

LOZ044-302100-
Sodus Bay to Mexico Bay along Lake Ontario-
1004 AM EDT Sat May 30 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

.THIS AFTERNOON...North winds 15 to 20 knots diminishing to 10 to
15 knots. Becoming mostly sunny. Waves 3 to 5 feet subsiding to
1 to 2 feet. Waves occasionally around 6 feet.
.TONIGHT...Northwest winds 10 knots or less becoming west. Mainly
clear. Waves 2 feet or less.
.SUNDAY...West winds 5 to 15 knots. Mostly sunny. Waves 1 to
3 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots becoming northwest less
than 10 knots. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to
3 feet.
.MONDAY...North winds 10 knots or less becoming northwest. Mainly
clear. Waves 1 foot or less.
.TUESDAY...West winds 10 knots or less becoming north. Mainly
clear, then becoming partly cloudy. Waves 1 foot or less.
.WEDNESDAY...North winds 10 knots or less becoming southwest.
Mainly clear. Waves 1 foot or less.

$$

LOZ045-302100-
Mexico Bay to the Saint Lawrence River along Lake Ontario-
1004 AM EDT Sat May 30 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING...

.THIS AFTERNOON...Northeast winds 15 to 20 knots diminishing to
10 to 15 knots. Mostly sunny. Waves 1 to 3 feet.
.TONIGHT...North winds 10 knots or less becoming west. Mainly
clear. Waves 1 foot or less.
.SUNDAY...West winds 5 to 15 knots becoming southwest. Partly
sunny. Waves 2 feet or less building to 2 to 4 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots becoming north less than
10 knots. A chance of showers. Waves 2 to 4 feet subsiding to
1 to 3 feet.
.MONDAY...North winds 10 knots or less. Mainly clear. Waves
1 foot or less.
.TUESDAY...Northwest winds 10 knots or less becoming northeast.
Mainly clear, then becoming partly cloudy. Waves 1 foot or less.
.WEDNESDAY...Northeast winds 10 knots or less becoming southwest.
Mainly clear. Waves 1 foot or less.

$$