Box Hill Weather in September

September in Box Hill brings moderate temperatures, with daytime highs of 17°C (63°F) and nights around 7°C (45°F). It's also the wettest month of the year, so an umbrella is a must.

Rainfall in Box Hill in September

It's the month with the heaviest rainfall, so an umbrella is a must to navigate the wet weather. Historically, September sees about 11 days of rain, with a monthly average of 80 mm (3.1 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Box Hill in September

In September, expect moderate temperatures in Box Hill, with highs of 17°C (63°F) and lows of 7°C (45°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 7°C (45°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Box Hill in September

The area enjoys a balanced 185 hours of sunlight, ensuring it's neither too overcast nor too sunny.

Wind Speed in Box Hill in September

Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

Average water temperature in September

The water is 13°C (55°F) this month, cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.

If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Box Hill. Our weather planner can help you explore destinations with more pleasant weather conditions.