Amherst Weather in September

September in Amherst sees daytime temperatures around 24°C (75°F) and lows of 11°C (52°F) at night. With around 105 mm (4.1 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Amherst in September

Based on our climate data of the past 30 years, about 9 days of rain are anticipated, with 105 mm (4.1 in) on average. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Amherst in September

Daytime highs in Amherst in September reach 24°C (75°F), with nights around 11°C (52°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Amherst in September

There are approximately 223 hours of sunshine this month, resulting in mostly clear days.

If you prefer dry days with pleasant temperatures, May typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.