Weather in Wilmington in December 2025
Average weather
Average temperature in Wilmington in December
Going from a maximum of +75°F during the day to a minimum of +30°F during the night, the temperature in December averages around +63°F.
The average maximum temperature goes down 28% by the end of the month, compared with the beginning of the month, from +70°F to +57°F.
Is Wilmington warm or cold in December?
Wilmington is typically mild in December.
Maximum temperatures go down compared to the previous month from +66°F to +59°F. The minimum temperature also goes down from +50°F to +45°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
December is one of the coolest months in Wilmington, here is the comparison with other months:
Climate in Wilmington in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +66°F | +59°F | +55°F | ||||
| Min. temperature | ||||||
| +23°F | +10°F | 0°F | ||||
| Max. temperature | ||||||
| +84°F | +81°F | +79°F | ||||
| Rainfall | ||||||
| 89 mm | 95 mm | 93 mm | ||||
| Wind | ||||||
| 2 m/s | 3 m/s | 3 m/s | ||||
| Humidity | ||||||
| 73% | 73% | 70% | ||||
| Air pressure | ||||||
| 1019 HPa | 1019 HPa | 1019 HPa | ||||
| Sunny days | ||||||
| 11 | 11 | 10 | ||||
| Cloudy days | ||||||
| 7 | 8 | 7 | ||||
| Rainy days | ||||||
| 12 | 12 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 1 | ||||
December weather is still as good as in November. It’s getting colder in December. From +66°F in the day, the average maximum temperature lowers to +59°F. Prepare for more rain. Average rainfall goes from 89 mm to 95 mm. Humidity levels don’t change as the month goes on, averaging around 73%. Winds are stronger in comparison to November, going up from 2 m/s to 3 m/s on average. The amount of sunny days stay about the same, averaging 11 sunny days during the month.
January brings much the same weather, it remains good.
Wind
The average wind speed is 2 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Wilmington is gradually increasing during December, going from 1 m/s to 3 m/s over the course of the month.
Rain
How was the weather last December in Wilmington?
Climate Change Over the Years
The climate in Wilmington in December has not changed that much over the last 43 years.
The average temperature was the lowest in 1996 (+69°F) and the highest in 2019 (+75°F). The driest year was 2007 with only 840 mm of rainfall, and the wettest year was 2020 with 2153 mm.
FAQ
Is December a good time to visit Wilmington?
Can you sunbathe in Wilmington in December?
Is Wilmington rainy in December?
Is it sunny in Wilmington in December?
Other cities in USA
Monthly weather in Wilmington
Source of the data
For this page, we’ve looked at the typical weather in Wilmington, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
