Arroyo Grande Weather in December
December in Arroyo Grande averages 18°C (64°F) during the day and 6°C (43°F) at night. It is the wettest month of the year, with 74 mm (2.9 in) of rainfall on average, so waterproof gear is a must.
Rainfall in Arroyo Grande in December
With frequent rain showers this month, having an umbrella on hand will keep you dry. Analyzing past climate data, one can expect approximately 9 days of rain, averaging 74 mm (2.9 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Arroyo Grande in December
In December, Arroyo Grande gets moderate temperatures, with highs of 18°C (64°F). Nights cool to around 6°C (43°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep. While this month has some of the cooler temperatures of the year, it's far from cold and remains pleasant.
Sunshine in Arroyo Grande in December
The days are predominantly sunny, with an estimated total of around 220 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.December in Arroyo Grande has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Arroyo Grande's climate page.
Arroyo Grande Temperature in December
Min Temperature
6°C (43°F)
Max Temperature
18°C (64°F)
Chance of Rain
30%
Precipitation
74 mm (2.9 in)
Rainy days
9 days
Sunshine
220 hours *
Percentage Sunshine
*
Best Places in the United States of America in December
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Arroyo Grande in December
Pleasant temperatures in December mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Arroyo Grande in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Arroyo Grande's climate page.
See the full Arroyo Grande climate overview or explore weather in the United States of America.
