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

78.3

°F

June 22, 01:15

Trend:

increasing

Yesterday:

78.0°F

Tomorrow:

78.4°F

Sunrise:

06:13

Sunset:

20:29

Day Length:

14 h. 16 min.

Hamilton in June

Minimum:

68.8°F

Average:

70.2°F

Maximum:

71.0°F

Sea water temperature in Hamilton today

As of now, in Hamilton, the water temperature is 78.3°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.6°F higher 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 sea 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 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 2025, while the historical minimum was 75.5°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 suggests a gradual increase. The average temperature is expected to rise up to 79.1°F, with minimum temperature starting at 78.4°F, while the maximum might reach 79.6°F.

Daily water temperature in Hamilton

Date Current Year

actual* / forecast**

last year 10 years average
Jun 8 75.2°F 75.2°F 75.6°F
Jun 9 76.2°F 75.4°F 75.7°F
Jun 10 76.1°F 76.0°F 75.9°F
Jun 11 76.0°F 76.5°F 76.0°F
Jun 12 76.6°F 77.3°F 76.2°F
Jun 13 76.5°F 77.5°F 76.5°F
Jun 14 76.3°F 78.3°F 76.7°F
Jun 15 76.8°F 78.7°F 76.8°F
Jun 16 76.4°F 78.7°F 76.9°F
Jun 17 76.6°F 79.1°F 77.1°F
Jun 18 77.0°F 78.7°F 77.2°F
Jun 19 76.8°F 79.1°F 77.3°F
Jun 20 77.7°F 79.5°F 77.5°F
Jun 21 78.0°F 79.4°F 77.5°F
Jun 22 78.3°F 80.2°F 77.7°F
Jun 23 78.4°F 80.2°F 77.8°F
Jun 24 78.7°F 80.3°F 78.1°F
Jun 25 79.0°F 80.6°F 78.5°F
Jun 26 79.3°F 80.9°F 78.7°F
Jun 27 79.4°F 81.2°F 78.9°F
Jun 28 79.6°F 81.4°F 79.0°F
Jun 29 79.6°F 81.8°F 79.1°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 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, 69.8°F in Spring, 80.6°F in Summer, and 78.9°F in Autumn.