Altoona Weather in September

Altoona in September sees high daytime temperatures of 25°C (77°F) and nighttime lows of 12°C (54°F). Rainfall is fairly high this month at around 95 mm (3.7 in), so pack a rain jacket to stay dry.

Rainfall in Altoona in September

Historically, approximately 10 days this month are expected to have rain, averaging 95 mm (3.7 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Altoona in September

The temperature in Altoona in September is excellent. Daytime highs reach 25°C (77°F), with nights dropping to 12°C (54°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights cool down to 12°C (54°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Altoona in September

The city usually sees around 240 hours of sunlight, indicating many sunny days , a great month for sightseeing.

Wind Speed in Altoona in September

September has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. September typically offers the best weather for Altoona.