The weather in December in Harlingen

It's warm in December in Harlingen with an average temperature of 24°C. Temperatures this month range from a low of 21°C to a high of 27°C. At night, you can expect temperatures between 10°C and 17°C.

Looking for great weather? December is a good time to be in Harlingen. 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 December for Harlingen, 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 33°C in 2019, Harlingen reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 3°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of -3°C to a highest value of 26°C.

Precipitation and snowfall

In December, there is an average of 25 mm of precipitation, spread over 6 days. Of the total precipitation, about 0,1 cm falls as snow in December. The wind speed is around 5 Bft, mostly coming from the South.

Daily weather in December for Harlingen

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

December weather comparison

  Harlingen New York
Average temperature 24°C 9°C
Max. temperature 27°C 12°C
Min. temperature 10°C -5°C
Total precipitation 25 mm 133 mm
Rainy days 6 days 17 days
Total snowfall 0,1 cm 9,7 cm
Snowy days 1 day 3 days

Start of December

The month of December starts in Harlingen with warm temps, averaging around 25°C during the day and nights around 14°C.

Mid December

By mid-December, daytime temps drop to around 24°C, with nights around 14°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of December

By the end of December, the average daytime temperature in Harlingen is around 24°C, while nighttime temps are about 14°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.

Find affordable trips to Harlingen

UV index

The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.

The hurricane season in Harlingen runs from June to November.

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

Temperature charts

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

Daily Temperature in December in Harlingen

Temperature in December in Harlingen over the years

Precipitation charts

These charts show the average amount of precipitation in December in Harlingen, 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 December in Harlingen

Total precipitation in December in Harlingen over the years

Daily Snowfall in December in Harlingen

Snowfall in December in Harlingen per year

Daily UV index in December in Harlingen

This chart shows the average daily UV index in December in Harlingen, 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 December in Harlingen

Have you been to Harlingen in December?

Share your weather experience in December in Harlingen.

Your email will not be shown in the review and will not be shared with others.

Average weather in Harlingen by month

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