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

68.7

°F

August 30, 04:30

Trend:

decreasing

Yesterday:

69.5°F

Tomorrow:

68.6°F

Sunrise:

06:41

Sunset:

19:58

Day Length:

13 h. 17 min.

Hamilton in September

Minimum:

36.3°F

Average:

38.2°F

Maximum:

39.1°F

Water temperature in Hamilton today

As of now, in Hamilton, the water temperature is 68.7°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 1.8°F lower 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

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling 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 76.7°F on 2021, while the historical minimum was 63.7°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 68.1°F, the minimum temperature may reach 67.9°F, and the maximum might stay at 68.6°F.

Daily water temperature in Hamilton

Date Current Year

actual* / forecast**

last year 10 years average
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 72.2°F 73.4°F 71.1°F
Aug 25 72.4°F 73.7°F 71.1°F
Aug 26 71.3°F 73.6°F 71.2°F
Aug 27 70.1°F 73.1°F 70.9°F
Aug 28 69.4°F 71.8°F 71.0°F
Aug 29 69.5°F 71.3°F 70.4°F
Aug 30 68.7°F 70.5°F 70.5°F
Aug 31 68.6°F 69.8°F 70.3°F
Sep 1 68.4°F 69.3°F 70.2°F
Sep 2 68.2°F 69.4°F 69.9°F
Sep 3 68.0°F 69.6°F 69.8°F
Sep 4 68.0°F 70.1°F 69.7°F
Sep 5 67.9°F 69.9°F 69.6°F
Sep 6 67.9°F 69.1°F 69.7°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.