Hamilton Weather in September

During September, Hamilton experiences moderate daytime temperatures of 13°C (55°F) and cooler nights around 3°C (37°F). Expect quite a bit of rainfall. Around 91 mm (3.6 in) is typical.

Rainfall in Hamilton in September

Records from the past 30 years suggest around 15 days of rain, with 91 mm (3.6 in) average for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Hamilton in September

Daytime highs in Hamilton in September reach 13°C (55°F), with nights around 3°C (37°F). The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 3°C (37°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Hamilton in September

With approximately 194 hours of sunshine, the days are filled with clear skies. Despite it being a cool month, it makes for pleasant days outside.

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