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

71.0

°F

April 20, 14:52

Trend:

stable

Yesterday:

70.8°F

Tomorrow:

70.9°F

Sunrise:

06:45

Sunset:

19:52

Day Length:

13 h. 7 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 71.0°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 1.6°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.

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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 70.8°F on 2023, while the historical minimum was 68.0°F on 2020.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 71.1°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
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 69.6°F 70.3°F 68.8°F
Apr 13 69.5°F 70.3°F 68.7°F
Apr 14 69.4°F 70.4°F 68.7°F
Apr 15 69.4°F 70.2°F 69.0°F
Apr 16 69.4°F 70.0°F 69.0°F
Apr 17 69.4°F 69.5°F 69.2°F
Apr 18 69.9°F 69.5°F 69.2°F
Apr 19 70.8°F 69.7°F 69.4°F
Apr 20 71.0°F 69.4°F 69.4°F
Apr 21 70.9°F 69.5°F 69.2°F
Apr 22 70.8°F 69.0°F 69.2°F
Apr 23 71.0°F 69.2°F 69.4°F
Apr 24 71.1°F 68.9°F 69.5°F
Apr 25 71.2°F 69.6°F 69.6°F
Apr 26 71.3°F 70.0°F 69.7°F
Apr 27 71.2°F 69.6°F 69.6°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 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.