National Harbor weather in December (Maryland, United States of America)

How's the weather trend in National Harbor as December approaches? Here’s a detailed forecast of the month’s weather patterns.

Temperatures

December in National Harbor generally includes low temperatures and high rainfall. During December, the winter season is in full swing. Daytime temperatures generally settle around 10°C, while nighttime can see a dip to about 1°C.

Precipitation

National Harbor in December usually receives high rainfall, averaging around 101 mm for the month. According to historical climate patterns, there are usually around 11 days days of rain.

Average sunshine

The city usually sees around 130 hours of sunlight, indicating a moderately sunny period.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit National Harbor. April typically offers the most optimal weather. In contrast, January, February and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized National Harbor climate page with graphs.

 

National Harbor, monthly averages in December

Min Temperature 1°C  

Max Temperature 10°C  

Chance of Rain 37%  

Precipitation 101 mm  

Rainy days 11 days  

Humidity 64% *  

Windspeed 14 km/h *  

Sunshine 130 hours *  

Percentage Sunshine 45% *  

Data from: Washington DC, the United States of America (7 KM, 4 Miles).

Where to go in the United States of America in December

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

Wear a base layer in cold weather; this is the #1 thing you can do to increase your overall body temperature.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

4/10

Walking

4/10

Camping

3/10

Outdoor sports

4/10

Interested in more climate information?

This site provides you with all the information you need about the climate in National Harbor.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.