Formosa Weather in September

September in Formosa sees daytime temperatures around 28°C (82°F) and lows of 15°C (59°F) at night. With around 118 mm (4.6 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Formosa in September

Typically, about 7 days will experience rainfall, with an average of 118 mm (4.6 in) for the month. When rain does fall this month, it tends to come down hard. The low number of rain days makes each shower more significant.

Temperature in Formosa in September

In September, Formosa sees high temperatures, with highs of 28°C (82°F). Nights drop to around 15°C (59°F). This kind of day-to-night contrast is typical for this time of year. Nights drop to around 15°C (59°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 Formosa in September

The month brings about 187 hours of sunlight, offering a comfortable mix of sun and overcast.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for Formosa.