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United StatesThe weather in September in Carlsbad
It's warm in September in Carlsbad with an average temperature of 26°C. Temperatures this month range from a low of 25°C to a high of 28°C. At night, you can expect temperatures between 16°C and 21°C.
Looking for great weather? September is a good time to be in Carlsbad. The temperatures are nice, and there’s 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 Carlsbad, 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 39°C in 2016, Carlsbad reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 19°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of 10°C to a highest value of 26°C.
Water temperature
The water temperature at Carlsbad is 21°C this month. Pleasant for a swim.
Rainfall amount
According to weather history, there is only 4,9 mm of precipitation in September. The wind speed is around 3 Bft, mostly coming from the West.
Daily weather in September for Carlsbad
Click on any day in September to get detailed info about the usual weather on that day in Carlsbad. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Carlsbad | New York | |
|---|---|---|
| Average temperature | 26°C | 27°C |
| Max. temperature | 28°C | 31°C |
| Min. temperature | 16°C | -5°C |
| Total precipitation | 4,9 mm | 57 mm |
| Rainy days | 1 day | 9 days |
Start of September
The month of September starts in Carlsbad with hot temps, averaging around 28°C during the day and nights around 20°C.
Mid September
By mid-September, daytime temps drop to around 26°C, with nights around 18°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 Carlsbad is around 26°C, while nighttime temps are about 17°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 6 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 Carlsbad for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Carlsbad, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Carlsbad
Temperature in September in Carlsbad over the years
Precipitation charts
These charts show the average amount of precipitation in September in Carlsbad, 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 Carlsbad
Total precipitation in September in Carlsbad over the years
Daily UV index in September in Carlsbad
This chart shows the average daily UV index in September in Carlsbad, 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 Carlsbad
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Average weather in Carlsbad by month
Click on a month below to see detailed weather info for Carlsbad. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.