Iselin weather in December (New Jersey, United States of America)

Curious about the December weather in Iselin? This guide provides all the details you need.

In December, Iselin typically experiences low temperatures and high snow/rainfall. December falls within the winter season. Anticipate daytime temperatures around 8°C, while night temperatures can drop to -1°C.

Iselin in December usually receives high snow/rainfall, averaging around 128 mm for the month. With this being the wettest month, keeping an umbrella on hand might save you from getting wet from a sudden shower. When we look at the climate data from the last 30 years, we can expect around 11 days of snow/rain.

The area experiences a moderate amount of sunshine, with approximately 141 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

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

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

 

Iselin, monthly averages in December

Min Temperature -1°C  

Max Temperature 8°C  

Chance of Rain 37%  

Precipitation 128 mm  

Rainy days 11 days  

Humidity 64% *  

Sunshine 141 hours *  

Percentage Sunshine 48% *  

* Data from: New York City, the United States of America (41 KM, 25 Miles).

Where to go in the United States of America in December

Find out more about the weather in the United States of America in December and which places have the best weather 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 Iselin in December?

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 in December.

Swimming

5/10

Cycling

4/10

Walking

4/10

Camping

1/10

Outdoor sports

4/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Iselin.

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 climate conditions. Find out where to go with our weather planner.