All data are in degrees Fahrenheit

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Water temperature in Rochester

Detailed information about the current water temperature in Rochester. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Rochester now

42.7

°F

January 23, 02:10

Trend:

stable

Yesterday:

42.7°F

Tomorrow:

42.6°F

Sunrise:

07:49

Sunset:

16:32

Day Length:

8 h. 43 min.

Rochester in January

Minimum:

42.6°F

Average:

45.2°F

Maximum:

47.8°F

Sea water temperature in Rochester today

As of now, in Rochester, the water temperature is 42.7°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is about the same as the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 44.7°F on 2020, while the historical minimum was 40.0°F on 2025.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 42.7°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Rochester

Date Current Year

actual* / forecast**

last year 10 years average
Jan 9 39.6°F 43.2°F 43.9°F
Jan 10 39.9°F 42.4°F 43.6°F
Jan 11 39.8°F 41.1°F 43.5°F
Jan 12 39.8°F 41.1°F 43.2°F
Jan 13 40.6°F 40.9°F 43.0°F
Jan 14 40.4°F 41.3°F 43.1°F
Jan 15 40.8°F 41.3°F 42.9°F
Jan 16 40.4°F 41.5°F 42.9°F
Jan 17 41.4°F 42.0°F 43.0°F
Jan 18 41.7°F 42.3°F 43.2°F
Jan 19 40.9°F 42.6°F 43.0°F
Jan 20 42.2°F 42.0°F 42.9°F
Jan 21 42.1°F 40.8°F 42.7°F
Jan 22 42.7°F 41.3°F 42.7°F
Jan 23 42.7°F 40.0°F 42.7°F
Jan 24 42.6°F 40.0°F 42.7°F
Jan 25 42.7°F 40.4°F 42.7°F
Jan 26 42.7°F 39.9°F 42.8°F
Jan 27 42.8°F 42.7°F 42.9°F
Jan 28 42.7°F 42.6°F 42.8°F
Jan 29 42.7°F 41.5°F 42.8°F
Jan 30 42.6°F 41.8°F 42.6°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Rochester by month

In an average year, Rochester offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Rochester was recorded on August 16, 2022, reaching a 72.3°F. While the coldest temperature occurred on January 8, 2026, dipping to 39.3°F. The average readings by season are 44.1°F in Winter, 49.9°F in Spring, 65.2°F in Summer, and 57.9°F in Autumn.