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The weather in September in Weslaco

It's hot in September in Weslaco with an average temperature of 34°C. Temperatures this month range from a low of 32°C to a high of 36°C. At night, you can expect temperatures between 23°C and 25°C.

Looking for sun? September isn’t a good month to be in Weslaco. The temperature is nice, but there’s too much chance of 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 Weslaco, Texas. 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 40°C in 2023, Weslaco reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 25°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of 13°C to a highest value of 29°C.

Rainfall amount

In September, there is an average of 160 mm of precipitation, spread over 15 days. The wind speed is around 4 Bft, mostly coming from the Southeast.

Daily weather in September for Weslaco

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

September weather comparison

  Weslaco New York
Average temperature 34°C 27°C
Max. temperature 36°C 31°C
Min. temperature 23°C -5°C
Total precipitation 160 mm 57 mm
Rainy days 15 days 9 days

Start of September

The month of September starts in Weslaco with hot temps, averaging around 35°C during the day and nights around 25°C.

Mid September

By mid-September, daytime temps drop to around 34°C, with nights around 24°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of September

By the end of September, the average daytime temperature in Weslaco is around 34°C, while nighttime temps are about 24°C. A shower might pop up, but overall, the weather will be dry and sunny.

Find affordable trips to Weslaco

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.

The hurricane season in Weslaco runs from June to November.

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

Temperature charts

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

Daily Temperature in September in Weslaco

Temperature in September in Weslaco over the years

Precipitation charts

These charts show the average amount of precipitation in September in Weslaco, Texas. 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 Weslaco

Total precipitation in September in Weslaco over the years

Daily UV index in September in Weslaco

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

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Average weather in Weslaco by month

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