Harriman Weather in December

During December, Harriman experiences low daytime temperatures of 11°C (52°F) and cooler nights around 0°C (32°F). As part of the winter season, expect quite a bit of rainfall. Around 159 mm (6.3 in) is typical.

Rainfall in Harriman in December

Looking at the last 30 years, the data shows about 13 days with rain, averaging 159 mm (6.3 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Harriman in December

Temperatures in Harriman in December top out at 11°C (52°F) and drop to 0°C (32°F) overnight. December is in the winter season. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. Nights fall to 0°C (32°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Harriman in December

The month brings about 125 hours of sunlight, offering a comfortable mix of sun and overcast.

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