What is the current water temperature in Hamilton?

Q: What is the current water temperature in Hamilton?

As of now, in Hamilton, the water temperature is 9.19°C. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration.

Canada > Hamilton

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.

48.5

°F

June 21, 00:08

Trend:

stable

Yesterday:

48.4°F

Tomorrow:

48.1°F

Sunrise:

05:39

Sunset:

21:03

Day Length:

15 h. 24 min.

Hamilton in June

Minimum:

36.6°F

Average:

38.5°F

Maximum:

39.4°F

Water temperature in Hamilton today

As of now, in Hamilton, the water temperature is 48.5°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 12.7°F lower 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 fall a bit.

Recent water 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 minimum temperature for this date. The maximum temperature recorded for this date was 64.6°F on 2023, while the historical minimum was 56.1°F on 2019.

latest data

last year

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 minimum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 49.8°F, with minimum temperature starting at 48.1°F, while the maximum might reach 50.6°F.

Daily water temperature in Hamilton

Date	Current Year actual* / forecast**	last year	10 years average
Jun 7	52.6°F	52.3°F	55.6°F
Jun 8	55.0°F	53.3°F	55.9°F
Jun 9	52.7°F	52.9°F	55.9°F
Jun 10	55.6°F	55.5°F	57.3°F
Jun 11	56.0°F	55.6°F	57.8°F
Jun 12	52.9°F	55.5°F	57.9°F
Jun 13	55.9°F	55.0°F	57.9°F
Jun 14	55.9°F	54.4°F	57.8°F
Jun 15	53.7°F	55.7°F	58.1°F
Jun 16	51.8°F	55.6°F	58.2°F
Jun 17	54.4°F	55.9°F	58.9°F
Jun 18	54.1°F	58.0°F	59.3°F
Jun 19	52.9°F	57.0°F	59.5°F
Jun 20	48.4°F	59.3°F	61.1°F
Jun 21	48.5°F	56.4°F	61.2°F
Jun 22	48.1°F	55.9°F	60.8°F
Jun 23	49.4°F	56.4°F	62.1°F
Jun 24	49.7°F	57.3°F	62.3°F
Jun 25	49.9°F	57.3°F	62.6°F
Jun 26	50.3°F	58.1°F	63.0°F
Jun 27	50.6°F	59.0°F	63.3°F
Jun 28	50.6°F	59.7°F	63.3°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, 66.3°F in Summer, and 58.4°F in Autumn.