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

69.8

°F

January 9, 11:51

Trend:

stable

Yesterday:

69.7°F

Tomorrow:

69.5°F

Sunrise:

07:21

Sunset:

17:32

Day Length:

10 h. 11 min.

Hamilton in January

Minimum:

69.5°F

Average:

70.6°F

Maximum:

71.9°F

Sea water temperature in Hamilton today

As of now, in Hamilton, the water temperature is 69.8°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 lower 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 slightly varies from the average of the past two weeks. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 71.1°F on 2016, while the historical minimum was 68.4°F on 2024.

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 69.3°F, the minimum temperature may reach 69.1°F, and the maximum might stay at 69.5°F.

Daily water temperature in Hamilton

Date Current Year

actual* / forecast**

last year 10 years average
Jan 1 69.5°F 70.4°F 70.6°F
Jan 2 69.6°F 70.4°F 70.6°F
Jan 3 69.5°F 70.6°F 70.7°F
Jan 4 69.2°F 70.3°F 70.4°F
Jan 5 69.3°F 70.0°F 70.3°F
Jan 6 69.4°F 70.1°F 70.2°F
Jan 7 69.3°F 69.7°F 70.1°F
Jan 8 69.7°F 69.4°F 70.2°F
Jan 9 69.8°F 69.2°F 70.2°F
Jan 10 69.5°F 68.9°F 69.9°F
Jan 11 69.5°F 68.6°F 69.9°F
Jan 12 69.5°F 68.3°F 69.9°F
Jan 13 69.4°F 68.0°F 69.7°F
Jan 14 69.2°F 67.9°F 69.6°F
Jan 15 69.1°F 68.0°F 69.5°F
Jan 16 69.1°F 67.8°F 69.5°F
Dec 26 70.6°F 70.5°F 70.9°F
Dec 27 70.5°F 70.6°F 70.9°F
Dec 28 70.2°F 70.5°F 70.7°F
Dec 29 70.1°F 70.4°F 70.7°F
Dec 30 70.1°F 70.5°F 70.8°F
Dec 31 69.7°F 70.3°F 70.6°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 188 swimming days.
The warmest water in Hamilton was recorded on August 15, 2020, reaching a 85.6°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, 69.7°F in Spring, 80.6°F in Summer, and 78.9°F in Autumn.