Foster Weather in September

During September, Foster experiences moderate daytime temperatures of 15°C (59°F) and cooler nights around 9°C (48°F). As the wettest month of the year, expect frequent rainfall.

Rainfall in Foster in September

This is the wettest month of the year, so having an umbrella ready is a smart choice. Looking at the last 30 years, the data shows about 11 days with rain, averaging 102 mm (4 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Foster in September

September in Foster brings typical temperatures with highs around 15°C (59°F) and lows of 9°C (48°F). Conditions are often most pleasant around the middle of the day. With overnight lows of 9°C (48°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

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