All data are in degrees Fahrenheit

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Water temperature in Hamilton

Detailed information about the current water temperature in Hamilton. 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 Hamilton now

69.3

°F

April 10, 19:22

Trend:

stable

Yesterday:

69.2°F

Tomorrow:

69.2°F

Sunrise:

06:56

Sunset:

19:45

Day Length:

12 h. 49 min.

Hamilton in April

Minimum:

69.2°F

Average:

70.4°F

Maximum:

71.5°F

Sea water temperature in Hamilton today

As of now, in Hamilton, the water temperature is 69.3°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 0.5°F higher than 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

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 70.6°F on 2019, while the historical minimum was 66.4°F on 2024.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 69.3°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Hamilton

Date Current Year

actual* / forecast**

last year 10 years average
Mar 27 69.1°F 67.8°F 68.4°F
Mar 28 68.9°F 68.0°F 68.6°F
Mar 29 69.0°F 67.8°F 68.6°F
Mar 30 68.7°F 67.7°F 68.7°F
Mar 31 68.6°F 67.4°F 68.4°F
Apr 1 68.3°F 68.8°F 68.4°F
Apr 2 68.3°F 68.8°F 68.5°F
Apr 3 67.8°F 69.0°F 68.4°F
Apr 4 68.0°F 69.1°F 68.4°F
Apr 5 68.6°F 68.8°F 68.4°F
Apr 6 68.8°F 68.0°F 68.4°F
Apr 7 69.5°F 68.4°F 68.4°F
Apr 8 69.3°F 69.4°F 68.6°F
Apr 9 69.2°F 69.6°F 68.9°F
Apr 10 69.3°F 69.7°F 68.8°F
Apr 11 69.2°F 69.8°F 68.7°F
Apr 12 69.2°F 70.3°F 68.7°F
Apr 13 69.2°F 70.3°F 68.6°F
Apr 14 69.2°F 70.4°F 68.7°F
Apr 15 69.4°F 70.2°F 68.9°F
Apr 16 69.5°F 70.0°F 69.0°F
Apr 17 69.7°F 69.5°F 69.2°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 Hamilton by month

In Hamilton, the months June through November offer comfortable swimming conditions, which amounts to 188 swimming days.
The warmest water in Hamilton was recorded on August 15, 2020, reaching a 85.6°F. While the coldest temperature occurred on February 24, 2025, dipping to 65.4°F. The average readings by season are 69.9°F in Winter, 69.7°F in Spring, 80.6°F in Summer, and 78.9°F in Autumn.