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

78.9

°F

November 3, 04:42

Trend:

decreasing

Yesterday:

79.1°F

Tomorrow:

78.7°F

Sunrise:

06:38

Sunset:

17:27

Day Length:

10 h. 49 min.

Hamilton in November

Minimum:

67.9°F

Average:

69.9°F

Maximum:

70.8°F

Sea water temperature in Hamilton today

As of now, in Hamilton, the water temperature is 78.9°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.1°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.

Recent sea 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 maximum temperature for this date. The maximum temperature recorded for this date was 77.7°F on 2020, while the historical minimum was 75.9°F on 2024.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 78.3°F, the minimum temperature may reach 78.0°F, and the maximum might stay at 78.7°F.

Daily water temperature in Hamilton

Date Current Year

actual* / forecast**

last year 10 years average
Oct 20 80.8°F 78.1°F 78.7°F
Oct 21 81.0°F 78.2°F 78.6°F
Oct 22 80.8°F 78.0°F 78.5°F
Oct 23 81.2°F 77.5°F 78.5°F
Oct 24 80.7°F 77.9°F 78.3°F
Oct 25 80.4°F 77.3°F 78.0°F
Oct 26 80.0°F 77.7°F 77.9°F
Oct 27 80.1°F 77.7°F 77.8°F
Oct 28 79.6°F 77.5°F 77.5°F
Oct 29 79.5°F 77.5°F 77.4°F
Oct 30 79.4°F 76.8°F 77.3°F
Oct 31 79.3°F 77.4°F 77.2°F
Nov 1 79.1°F 76.7°F 77.0°F
Nov 2 79.1°F 76.6°F 76.9°F
Nov 3 78.9°F 76.5°F 76.7°F
Nov 4 78.7°F 77.0°F 76.6°F
Nov 5 78.5°F 76.3°F 76.4°F
Nov 6 78.4°F 75.7°F 76.3°F
Nov 7 78.3°F 75.3°F 76.2°F
Nov 8 78.0°F 74.9°F 75.9°F
Nov 9 78.1°F 74.8°F 76.0°F
Nov 10 78.0°F 75.1°F 75.9°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 190 swimming days.
The warmest water in Hamilton was recorded on September 2, 2026, reaching a 86.1°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, 69.8°F in Spring, 80.6°F in Summer, and 79.0°F in Autumn.