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

79.4

°F

October 18, 00:23

Trend:

decreasing

Yesterday:

79.5°F

Tomorrow:

79.3°F

Sunrise:

07:25

Sunset:

18:43

Day Length:

11 h. 18 min.

Hamilton in October

Minimum:

67.9°F

Average:

70.1°F

Maximum:

71.3°F

Sea water temperature in Hamilton today

As of now, in Hamilton, the water temperature is 79.4°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.3°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 slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. 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 80.2°F on 2021, while the historical minimum was 78.0°F on 2022.

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 maximum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 78.7°F, the minimum temperature may reach 78.2°F, and the maximum might stay at 79.3°F.

Daily water temperature in Hamilton

Date Current Year

actual* / forecast**

last year 10 years average
Oct 4 82.2°F 81.2°F 80.5°F
Oct 5 80.9°F 80.9°F 80.2°F
Oct 6 80.3°F 80.5°F 80.0°F
Oct 7 80.4°F 80.3°F 80.0°F
Oct 8 79.8°F 80.1°F 79.8°F
Oct 9 79.7°F 80.0°F 79.7°F
Oct 10 79.7°F 80.2°F 79.7°F
Oct 11 79.3°F 79.3°F 79.4°F
Oct 12 79.1°F 78.7°F 79.2°F
Oct 13 79.3°F 79.0°F 79.2°F
Oct 14 79.4°F 78.1°F 79.3°F
Oct 15 79.7°F 78.7°F 79.2°F
Oct 16 79.4°F 77.9°F 79.1°F
Oct 17 79.5°F 78.2°F 79.1°F
Oct 18 79.4°F 78.5°F 79.1°F
Oct 19 79.3°F 77.6°F 78.9°F
Oct 20 79.0°F 78.0°F 78.7°F
Oct 21 78.8°F 78.0°F 78.4°F
Oct 22 78.6°F 77.5°F 78.3°F
Oct 23 78.6°F 77.8°F 78.2°F
Oct 24 78.4°F 77.6°F 78.1°F
Oct 25 78.2°F 77.3°F 77.8°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 70.0°F in Winter, 69.7°F in Spring, 80.6°F in Summer, and 78.9°F in Autumn.