TODAY SEP21
TEMPERATURE64
HUMIDITY88
PRESSURE30.03
WIND COND.266 1
  • 7264Sat
  • 7263Sun
  • 7263Mon
  • 7263Tue
  • 7364Wed
daynightWeather update from EW3174 Oceanside at
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Oceanside Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January41°F66°F53°F11.8"
February46°F68°F56°F7.0"
March49°F69°F58°F1.6"
April50°F69°F59°F2.3"
May56°F72°F64°F0.3"
June57°F72°F64°F0.2"
July62°F76°F68°F0.1"
August63°F78°F70°F7.0"
September55°F76°F65°F0.5"
October51°F75°F62°F1.3"
November47°F72°F58°F3.1"
December40°F65°F52°F3.3"

Did you know?

  • The highest monthly average temperature in Oceanside for August is 70 degrees.
  • The lowest monthly average temperature in Oceanside for December is 52 degrees.
  • The most monthly precipitation in Oceanside occurs in January with 11.8 inches.
  • The air quality index in Oceanside is 22% worse than the national average.
  • The pollution index in Oceanside is 804% worse than the national average.

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Compare Oceanside, CA Weather To Other Cities

Oceanside air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexOceansideCaliforniaNational
Air quality index615550
Pollution index45,820,50018,106,7265,066,862

Oceanside air quality information

MeasurementTotal
Days measured365
Days with good air quality69
Days with moderate air quality277
Days w/ poor A.Q. for sensitive groups17
Days with unhealthy air quality1

Oceanside air quality information

PollutantTotal
Arsenic1.130%
Benzene0.410%
Carbon Tetrachloride0.030%
Lead0.600%
Mercury0.080%

Average monthly Oceanside temperature with heat index

Oceanside monthly precipitation with daily maximum

Oceanside monthly snow depth with daily maximum

Oceanside monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Camp Pendleton North, CA7,8856122%
Fairbanks Ranch, CA2,8646122%
Rancho Santa Fe, CA2,7636122%
Camp Pendleton South, CA12,4916122%
Fallbrook, CA31,7716122%
Oceanside, CA173,8296122%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Rancho Cucamonga, CA173,3098570%
Santa Rosa, CA173,1653530%
Garden Grove, CA174,6767448%
Tempe, AZ174,7087448%
Fort Lauderdale, FL175,1534118%
Oceanside, CA173,8296122%
Source: The Oceanside, CA weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.