Seneca Weather in December

December in Seneca averages 14°C (57°F) during the day and 3°C (37°F) at night. It is the wettest month of the year, with 162 mm (6.4 in) of rainfall on average, so waterproof gear is a must.

Rainfall in Seneca in December

The month is marked by heavy rainfall, often coming down in intense bursts. Make sure to have a poncho to stay dry. Historically, the month has about 12 days of rain, averaging 162 mm (6.4 in) in total. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Seneca in December

In December, Seneca sees moderate temperatures, with highs of 14°C (57°F). Nights drop to around 3°C (37°F). The winter season is characteristic of December. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 3°C (37°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

If you prefer enjoying temperate temperatures and rain-free days, April, May and September typically offer 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.