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Water temperature in Rochester (NY) in May

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Is it warm enough to swim in Rochester in May? Average water temperature in Rochester in May is 45.5°F and therefore is not suitable for comfortable swimming. The warmest water in Rochester in May is 62.8°F, and the coldest is 36.3°F. Average high air temperature in Rochester in May is 68°F, and average low temperature is 46°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Rochester

Changes water temperature in Rochester in May 2025, 2024

To get an accurate forecast for the water temperature in Rochester for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Rochester, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of May.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
May 139.4°F43.9°F36.3°F43.9°F
May 240.3°F45.5°F36.9°F45.5°F
May 340.1°F45.5°F38.3°F45.5°F
May 440.3°F45.1°F38.1°F45.1°F
May 538.7°F45°F37.9°F45.5°F
May 637.2°F45.5°F37.2°F45.9°F
May 738.1°F46.2°F37.6°F46.6°F
May 838.5°F47.3°F38.1°F48.2°F
May 941.2°F46.9°F38.5°F50.5°F
May 1043.2°F50.5°F38.8°F50.5°F
May 1142.3°F48.4°F39.4°F49.1°F
May 1242.3°F50.5°F39.6°F50.5°F
May 1342.1°F50.4°F39.9°F50.4°F
May 1442.1°F47.8°F39.9°F51.3°F
May 1542.3°F48.2°F39.9°F52.2°F
Day 2025 2024 Min Max
May 1639.6°F50°F39.6°F50.7°F
May 1740.8°F49.3°F39.7°F50.2°F
May 1841.2°F51.4°F40.3°F51.4°F
May 1943.5°F55.2°F40.8°F55.6°F
May 2042.6°F56.3°F40.8°F56.5°F
May 2142.6°F55.9°F41.4°F56.3°F
May 2243°F59.7°F40.6°F59.7°F
May 2343.2°F60.6°F41.4°F60.6°F
May 2443.5°F60.4°F40.8°F60.8°F
May 2544.2°F62.1°F41.4°F62.1°F
May 2643.3°F60.8°F39.7°F60.8°F
May 2743.9°F60.8°F39.9°F60.8°F
May 2845.7°F59.9°F40.1°F60.6°F
May 2945.7°F59.7°F41.4°F61°F
May 3045.7°F58.8°F41.5°F62.8°F
May 3145.5°F59.5°F41.4°F62.4°F
Rochester water temp chart in May

Average water temperature in Rochester in May over a decade

20162017201820192020
48.4°F44.6°F41.7°F40.1°F44.8°F
20212022202320242025
49.1°F45°F49.3°F52.5°F42.1°F

Rochester sea state in May

Chart comparing the height of waves in Rochester in May over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Rochester in May

Weather and climate in Rochester in May

This data display average monthly climate indicators in Rochester in May based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature68°F
  • Average LOW temperature46°F
  • Average humidity
    67
  • Average rainfall days12 days
  • Average rainfall74mm/2.9''
  • Average sunshine8.6h
  • Average snowfall10mm/0.4''

Rochester water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in May?

Want to know where the water temperature in May is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Temperature in neighboring cities

The nearest locations with the average water temperature in May. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
New York City56.7°F48.7°F66.9°F
Hamlin Beach45.3°F37.4°F62.1°F
Sodus Point45.9°F36.9°F61.9°F
Fair Haven45.9°F34.9°F62.4°F
Sandbanks45.9°F37.4°F63.1°F
North Beach46.4°F37.9°F63.9°F
Prince Edward46.8°F37.9°F63.7°F
Brighton46.6°F38.5°F63.7°F
Cobourg45.1°F37.6°F62.8°F
Oswego46.4°F35.8°F63.1°F

Rochester photo gallery

  • sunrise Sept. 9, 2022 Ontario Beach Park

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Rochester is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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