Hamilton Weather in September

During September, Hamilton experiences moderate daytime temperatures of 16°C (61°F) and cooler nights around 6°C (43°F). As the wettest month of the year, expect frequent rainfall.

Rainfall in Hamilton in September

Since this is the rainiest month of the year, it's a good idea to carry an umbrella just in case. Records from the past 30 years suggest around 11 days of rain, with 75 mm (3 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Hamilton in September

Hamilton in September gets highs of 16°C (61°F) during the day and drops to 6°C (43°F) at night. The difference between afternoon and evening temperatures is usually noticeable. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, November and December typically offer the best weather for Hamilton.