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.
Water temperature in Hamilton now

71.9

°F

August 23, 03:59

Trend:

stable

Yesterday:

71.8°F

Tomorrow:

71.4°F

Sunrise:

06:33

Sunset:

20:10

Day Length:

13 h. 37 min.

Hamilton in August

Minimum:

36.6°F

Average:

38.4°F

Maximum:

39.5°F

Water temperature in Hamilton today

As of now, in Hamilton, the water temperature is 71.9°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 0.4°F higher than the average recorded on this particular day in recent years. The water temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.

Recent water temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. 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 75.5°F on 2021, while the historical minimum was 66.1°F on 2023.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 71.3°F, the minimum temperature may reach 70.9°F, and the maximum might stay at 71.5°F.

Daily water temperature in Hamilton

Date Current Year

actual* / forecast**

last year 10 years average
Aug 9 70.4°F 72.5°F 71.2°F
Aug 10 69.5°F 72.4°F 71.0°F
Aug 11 70.3°F 72.4°F 71.1°F
Aug 12 69.7°F 75.6°F 71.6°F
Aug 13 70.4°F 75.6°F 71.8°F
Aug 14 71.1°F 74.9°F 71.6°F
Aug 15 71.9°F 76.3°F 72.0°F
Aug 16 72.2°F 76.5°F 72.1°F
Aug 17 72.1°F 76.7°F 72.1°F
Aug 18 72.2°F 75.8°F 72.1°F
Aug 19 72.6°F 76.1°F 72.0°F
Aug 20 71.2°F 75.5°F 71.7°F
Aug 21 72.2°F 75.0°F 71.6°F
Aug 22 71.8°F 74.3°F 71.7°F
Aug 23 71.9°F 73.4°F 71.5°F
Aug 24 71.4°F 73.4°F 71.0°F
Aug 25 71.3°F 73.7°F 71.0°F
Aug 26 71.5°F 73.6°F 71.2°F
Aug 27 71.4°F 73.1°F 71.0°F
Aug 28 71.5°F 71.8°F 71.2°F
Aug 29 70.9°F 71.3°F 70.5°F
Aug 30 70.9°F 70.5°F 70.5°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.

Water temperature in Hamilton by month

In an average year, Hamilton offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Hamilton was recorded on August 28, 2021, reaching a 77.8°F. While the coldest temperature occurred on February 6, 2026, dipping to 33.9°F. The average readings by season are 38.1°F in Winter, 41.1°F in Spring, 66.1°F in Summer, and 58.4°F in Autumn.