The weather in September in Rubidoux

It's hot in September in Rubidoux with an average temperature of 34°C. Temperatures this month range from a low of 32°C to a high of 37°C. At night, you can expect temperatures between 17°C and 21°C.

September is an awesome month to be in Rubidoux for sunny weather. You’ll have high temperatures and not much chance of rain this month.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Rubidoux, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 48°C in 2020, Rubidoux reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 20°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of 10°C to a highest value of 27°C.

Rainfall amount

In September, there is an average of 12 mm of precipitation, spread over 2 days. The wind speed is around 4 Bft, mostly coming from the West.

Daily weather in September for Rubidoux

Click on any day in September to get detailed info about the usual weather on that day in Rubidoux. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Rubidoux New York
Average temperature 34°C 27°C
Max. temperature 37°C 31°C
Min. temperature 17°C -5°C
Total precipitation 12 mm 57 mm
Rainy days 2 days 9 days

Start of September

The month of September starts in Rubidoux with hot temps, averaging around 35°C during the day and nights around 21°C.

Mid September

By mid-September, daytime temps drop to around 33°C, with nights around 19°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of September

By the end of September, the average daytime temperature in Rubidoux is around 33°C, while nighttime temps are about 18°C. No precipitation expected at the end of the month; it’ll be mostly sunny.

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UV index

The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of Rubidoux for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in September in Rubidoux, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Rubidoux

Temperature in September in Rubidoux over the years

Precipitation charts

These charts show the average amount of precipitation in September in Rubidoux, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in Rubidoux

Total precipitation in September in Rubidoux over the years

Daily UV index in September in Rubidoux

This chart shows the average daily UV index in September in Rubidoux, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in September in Rubidoux

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Average weather in Rubidoux by month

Click on a month below to see detailed weather info for Rubidoux. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.