The weather in September in Catalina

It's hot in September in Catalina with an average temperature of 35°C. Temperatures this month range from a low of 33°C to a high of 38°C. At night, you can expect temperatures between 19°C and 25°C.

September is a good month to be in Catalina for sunny weather. You’ll have high temperatures and not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Catalina, Arizona. 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 43°C in 2023, Catalina reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 24°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of 12°C to a highest value of 29°C.

Rainfall amount

In September, there is an average of 37 mm of precipitation, spread over 7 days. The wind speed is around 4 Bft, mostly coming from the South.

Daily weather in September for Catalina

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

September weather comparison

  Catalina New York
Average temperature 35°C 27°C
Max. temperature 38°C 31°C
Min. temperature 19°C -5°C
Total precipitation 37 mm 57 mm
Rainy days 7 days 9 days

Start of September

The month of September starts in Catalina with hot temps, averaging around 37°C during the day and nights around 25°C.

Mid September

By mid-September, daytime temps drop to around 36°C, with nights around 23°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 Catalina is around 34°C, while nighttime temps are about 21°C. A shower might pop up, but overall, the weather will be dry and sunny.

Find affordable trips to Catalina

UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

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

Temperature charts

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

Daily Temperature in September in Catalina

Temperature in September in Catalina over the years

Precipitation charts

These charts show the average amount of precipitation in September in Catalina, Arizona. 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 Catalina

Total precipitation in September in Catalina over the years

Daily UV index in September in Catalina

This chart shows the average daily UV index in September in Catalina, 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 Catalina

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Average weather in Catalina by month

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