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

72.6

°F

July 19, 01:39

Trend:

decreasing

Yesterday:

72.7°F

Tomorrow:

72.5°F

Sunrise:

05:56

Sunset:

20:55

Day Length:

14 h. 59 min.

Hamilton in July

Minimum:

36.9°F

Average:

38.4°F

Maximum:

39.3°F

Water temperature in Hamilton today

As of now, in Hamilton, the water temperature is 72.6°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 2.8°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 stay about the same.

Recent water 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 74.3°F on 2018, while the historical minimum was 65.9°F on 2016.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 73.1°F, with minimum temperature starting at 72.5°F, while the maximum might reach 73.5°F.

Daily water temperature in Hamilton

Date Current Year

actual* / forecast**

last year 10 years average
Jul 5 64.0°F 65.4°F 65.3°F
Jul 6 63.9°F 66.2°F 66.8°F
Jul 7 64.3°F 67.3°F 67.4°F
Jul 8 66.4°F 67.1°F 67.7°F
Jul 9 67.3°F 68.2°F 68.0°F
Jul 10 67.8°F 69.3°F 68.6°F
Jul 11 67.2°F 70.3°F 68.4°F
Jul 12 69.6°F 67.8°F 68.6°F
Jul 13 70.6°F 72.4°F 69.4°F
Jul 14 72.3°F 73.6°F 69.8°F
Jul 15 71.9°F 74.2°F 69.6°F
Jul 16 73.0°F 73.2°F 69.7°F
Jul 17 73.3°F 74.2°F 70.2°F
Jul 18 72.7°F 74.8°F 69.9°F
Jul 19 72.6°F 73.3°F 69.8°F
Jul 20 72.5°F 68.1°F 69.7°F
Jul 21 73.1°F 69.8°F 70.4°F
Jul 22 73.2°F 70.5°F 70.4°F
Jul 23 72.8°F 71.0°F 70.1°F
Jul 24 73.1°F 71.5°F 70.3°F
Jul 25 73.4°F 72.6°F 70.7°F
Jul 26 73.5°F 72.8°F 70.7°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, 66.2°F in Summer, and 58.4°F in Autumn.