Oceanside
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Oceanside Weather in December

December in Oceanside brings low temperatures around 9°C (48°F) during the day, dropping to 4°C (39°F) at night, with the most rainfall of the year.

Rainfall in Oceanside in December

Oceanside is in the rainy season in December, with rain on around 24 days and an average of 396 mm (16 in). The rain this month falls heavily when it arrives, so waterproofs are worth keeping handy.

Temperature in Oceanside in December

In December, Oceanside gets low temperatures, with highs of 9°C (48°F). Nights cool to around 4°C (39°F). December is in the winter season. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. Nights drop to 4°C (39°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet. Experience the year's most moderate temperatures in December.

December in Oceanside 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.

Oceanside Temperature in December

Min Temperature
4°C (39°F)
Max Temperature
9°C (48°F)
Chance of Rain
78%
Precipitation
396 mm (16 in)
Rainy days
24 days

Oceanside Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Oceanside - and find the best time to visit.

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

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Oceanside in December

Dress warmly and in layers for your trip to Oceanside in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. It's going to pour! Pack a good poncho and prepare for very wet conditions.

What To Do in Oceanside in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    4/10
  • Walking
    4/10
  • Barbeque
    1/10
  • Camping
    3/10
  • Outdoor sports
    4/10

Oceanside 3-Day Forecast

More climate data for Oceanside

Popular in December

Where to go in December - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.