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

64.7

°F

September 27, 08:48

Trend:

stable

Yesterday:

64.0°F

Tomorrow:

64.5°F

Sunrise:

07:12

Sunset:

19:08

Day Length:

11 h. 56 min.

Hamilton in October

Minimum:

35.9°F

Average:

38.2°F

Maximum:

39.0°F

Water temperature in Hamilton today

As of now, in Hamilton, the water temperature is 64.7°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 2.0°F lower 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 stay about the same.

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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 72.6°F on 2017, while the historical minimum was 63.4°F on 2020.

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 63.4°F, the minimum temperature may reach 62.5°F, and the maximum might stay at 64.5°F.

Daily water temperature in Hamilton

Date Current Year

actual* / forecast**

last year 10 years average
Sep 13 67.6°F 60.5°F 67.4°F
Sep 14 67.3°F 61.4°F 67.4°F
Sep 15 68.2°F 62.6°F 67.5°F
Sep 16 68.5°F 63.3°F 67.7°F
Sep 17 68.8°F 64.3°F 67.8°F
Sep 18 68.5°F 65.1°F 67.9°F
Sep 19 68.6°F 65.4°F 68.0°F
Sep 20 68.6°F 66.3°F 67.8°F
Sep 21 67.9°F 66.5°F 67.6°F
Sep 22 66.4°F 65.7°F 67.5°F
Sep 23 65.6°F 66.1°F 67.4°F
Sep 24 64.8°F 66.1°F 66.9°F
Sep 25 64.5°F 65.9°F 66.6°F
Sep 26 64.0°F 65.6°F 66.4°F
Sep 27 64.7°F 65.7°F 66.6°F
Sep 28 64.5°F 67.2°F 66.5°F
Sep 29 64.2°F 67.2°F 66.1°F
Sep 30 64.1°F 67.4°F 66.1°F
Oct 1 63.3°F 67.6°F 65.3°F
Oct 2 63.0°F 67.5°F 65.0°F
Oct 3 62.6°F 66.7°F 64.6°F
Oct 4 62.5°F 66.0°F 64.4°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.