January Weather in South Toms River, United States

Last updated: June 24, 2025

In January, the average temperature in South Toms River, United States hovers around 2°C (36°F), with extreme fluctuations ranging from a brisk -17°C (2°F) to a mild 20°C (69°F). Expect about 67 mm (2.6 in) of precipitation over 8 days, contributing to an average humidity of 83%. Prepare for a chilly, damp month!

January Temperature in South Toms River

In January in South Toms River, the average temperature is 2°C (36°F). Maximums can reach 20°C (69°F) and minimums can be as low as -17°C (2°F). It's important to pack accordingly, as the weather can vary significantly from day to night.

January Weather in South Toms River: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in South Toms River, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In South Toms River, January typically has an average temperature of 2°C (36°F), with highs reaching up to 20°C (69°F) and lows dropping to around -17°C (2°F).

Data source: Temperature data for South Toms River generated using information from the Copernicus Climate Change Service.

January Precipitation in South Toms River

In South Toms River in January, the total precipitation amount is 67 mm (2.6 in) over the course of 8 days.

January Precipitation Trends in South Toms River

The chart displays monthly precipitation patterns in South Toms River, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In South Toms River, January typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in South Toms River

In South Toms River in January, humidity is 83%. With an average temperature of 2°C (36°F), this humidity feels like a cold, damp blanket, making travel uncomfortable as the chill seeps into your bones and the moisture clings to your clothing, forcing you to constantly seek warmth and shelter.

January Average Humidity in South Toms River

This chart illustrates the average monthly humidity levels in South Toms River, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in South Toms River is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in South Toms River

In South Toms River in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in South Toms River, you can check the information here.

Maximum UV Index Levels in South Toms River for January

The chart shows the monthly maximum UV Index (UVI) for South Toms River in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in South Toms River typically reaches 3, which falls under the moderate exposure category.

Data source: South Toms River January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in South Toms River Compares to Other Months

Weather in South Toms River varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in South Toms River, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in South Toms River, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	67 mm (2.6 inches)	83%	moderate
February Weather	4°C (39°F)	108 mm (4.3 inches)	82%	moderate
March Weather	7°C (44°F)	105 mm (4.1 inches)	81%	high
April Weather	12°C (54°F)	110 mm (4.3 inches)	79%	very high
May Weather	17°C (63°F)	122 mm (4.8 inches)	74%	very high
June Weather	23°C (73°F)	94 mm (3.7 inches)	77%	very high
July Weather	26°C (79°F)	147 mm (5.8 inches)	76%	very high
August Weather	25°C (77°F)	142 mm (5.6 inches)	77%	very high
September Weather	22°C (71°F)	101 mm (4.0 inches)	74%	very high
October Weather	16°C (62°F)	141 mm (5.5 inches)	75%	high
November Weather	9°C (48°F)	90 mm (3.6 inches)	80%	moderate
December Weather	5°C (41°F)	107 mm (4.2 inches)	81%	low