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Westminster (CA) Climate by Month

Temperatures in Westminster experience a moderate degree of variance through the seasons. Days can be warm, while the cooler months tend to be pleasant. It experiences desert-like conditions in terms of precipitation, with almost no rainfall. Let’s explore the climate details in depth to provide you with a complete overview.

Average day and night temperature

The climate in Westminster experiences moderate temperature changes, with mild shifts between seasons. Typically, daytime temperatures range from a comfortable 28°C in September to a pleasant 19°C in the coolest month, December. Nights are cooler, with temperatures generally dropping to 8°C, particularly during the colder months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Westminster is known for its low rainfall, with yearly precipitation amounts around 208 mm. The climate in Westminster shows significant variation throughout the year. Expect moderate rainfall in December, with an average of 54 mm of precipitation over 8 rainy days. In contrast, August offers drier and sunnier days, with around 0.1 mm of rainfall over 0 rainy days.

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

Sunshine over the year

For those who appreciate different seasons, Westminster serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 12.3 hours of sunshine daily, and embrace the darker days in January, offering only 6.6 hours of daily sunlight.

Monthly hours of sunshine

Data from: Corona, the United States of America (40 KM, 25 Miles).

Daily hours of sunshine

Data from: Corona, the United States of America (40 KM, 25 Miles).

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

During the months of January, February, March, April, May, June, October and November 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 Westminster?
    September has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Westminster?
    The coldest month is December with an average maximum temperature of 19°C.
  • Which is the wettest month in Westminster?
    December tops the wettest month list with 54 mm of rainfall.
  • Which is the driest month in Westminster?
    August is the driest month with 0 mm of precipitation.
  • Which is the sunniest month in Westminster?
    July is the sunniest month with an average of 369 hours of sunshine.

  • 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.

    Forecast for Westminster (CA)

    Sat   Nov 23
    19°C | 9°C
    SW 7 km/h
    1.7 mm
    overcast and rain

    overcast and rain

    Sun   Nov 24
    19°C | 9°C
    SW 11 km/h
    almost clear and no rain

    almost clear and no rain

    Mon   Nov 25
    22°C | 7°C
    SW 11 km/h
    partly cloudy and no rain

    partly cloudy and no rain