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Oceanside Weather and Climate: A Comprehensive Guide

Oceanside experiences great temperature shifts. The city's weather can transition from pleasant days to cold weather. It also experiences much rainfall throughout the year. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

The climate in Oceanside is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures reach a pleasant 21°C in August. In December, the coolest month of the year, temperatures drop to a chilly 9°C.

At night, you can expect cooler temperatures, with averages dropping to around 4°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Oceanside has a notably wet climate with abundant precipitation, recording 2385 mm of rainfall per year. Oceanside can be quite wet during December, receiving approximately 396 mm of precipitation over 24 rainy days.

In contrast July, experiences much drier conditions, with 27 mm of rainfall, spread across 6 rainy days. For more details, please visit our Oceanside Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for Oceanside

Sat   Jan 11
10°C | 6°C
NW 7 m/s
2.3 mm
overcast and  chance of rain

overcast and chance of rain

Sun   Jan 12
10°C | 2°C
N 6 m/s
0.7 mm
partly cloudy and  chance of slight rain

partly cloudy and chance of slight rain

Mon   Jan 13
10°C | 0°C
E 3 m/s
partly cloudy and no rain

partly cloudy and no rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Oceanside in the United States of America

During the months of July and August you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Oceanside?
    August has an average maximum temperature of 21°C and is the warmest month of the year.
  • Which is the coldest month in Oceanside?
    The coldest month is December with an average maximum temperature of 9°C.
  • Which is the wettest month in Oceanside?
    December tops the wettest month list with 396 mm of rainfall.
  • Which is the driest month in Oceanside?
    July is the driest month with 27 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.