Eureka Weather in December

December in Eureka sees daytime temperatures around 12°C (54°F) and lows of 4°C (39°F) at night. As the wettest month of the year, keep in mind that rainfall is at its highest.

Rainfall in Eureka in December

Expect the heaviest rain of the year this month, often arriving in intense bursts. A poncho is essential for keeping dry. Based on our climate data of the past 30 years, about 18 days of rain are anticipated, with 198 mm (7.8 in) on average. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Eureka in December

Temperatures in Eureka in December top out at 12°C (54°F) and drop to 4°C (39°F) overnight. The difference between afternoon and evening temperatures is usually noticeable. At 4°C (39°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions. This month often claims the chilliest averages of the year.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Eureka. Our weather planner can help you explore destinations with more pleasant weather conditions.