Measurements:
°C
°F
CURRENT WEATHER
18:08
Hamilton
84°F
W 6 mph
Feels like: 82°F
Precip: 10%
World Resorts Canada Hamilton Weather

7 Day Weather Forecast

09.08
tue
DAY
82°F
W 4 mph
precip
13%
NIGHT
70°F
NE 3 mph
precip
15%
09.09
wed
DAY
78°F
NE 11 mph
precip
22%
NIGHT
70°F
E 11 mph
precip
31%
09.10
thu
DAY
72°F
SE 12 mph
precip
13%
NIGHT
60°F
SE 8 mph
precip
4%
09.11
fri
DAY
70°F
NE 2 mph
precip
2%
NIGHT
62°F
NW 4 mph
precip
7%
09.12
sat
DAY
74°F
NW 3 mph
precip
2%
NIGHT
70°F
NE 7 mph
precip
17%
09.13
sun
DAY
80°F
NE 4 mph
precip
17%
NIGHT
64°F
S 9 mph
precip
51%
09.14
mon
DAY
68°F
SW 7 mph
precip
14%
NIGHT
66°F
W 8 mph
precip
14%

Hamilton Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Hamilton was 19.1°F. The maximum and minimum values were 15.8°F and 21.2°F respectively.

Hamilton on the Weather Map

Best Time to Visit Hamilton
The most sunny months:
September 15 days
July 15 days
August 14 days
The most warm months:
July 83.2 °F
August 81.2 °F
June 76.2 °F
Warmest sea temperature:
August 73.5 °F
July 71.0 °F
September 69.7 °F
The most cold months:
January 26.4 °F
February 27.6 °F
December 33.8 °F
The most rainy months:
April 2 days
July 2 days
June 2 days
The most windy months:
December 11 mph
November 11 mph
January 10 mph
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