January is a very cold and slightly rainy time for sunbathing in New Jersey, and not recommended. January is too cold for swimming in New Jersey for any length of time, unless you have a wetsuit. Consider visiting New Jersey in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for January.
The average maximum temperature in New Jersey in January is 5°. The average maximum temperature is 8° in the previous month and 6° in the next month.
The average temperature in New Jersey in January is 0°. The average temperature ranges is 4° in the previous month and 1° in the next month.
The average minimum temperature in New Jersey in January is -4°. The minimum temperature is -1° in the previous month and -3° in the next month.
The average day light hours per day in New Jersey in January are 9.7 and there are 7.3 hours of sunshine per day on average during January making it a quite sunny month with some cloud cover.
The ultraviolet index in New Jersey in January is typically 1.9 during January. An ultraviolet index reading of 0 to 2 indicates low danger from the sun's UV rays for the average person. Most people will be able to spend several hours in the sun with out a problem, however unprotected skin risks burning in less than 1 hour. Wear sunglasses on bright days. Only those that burn easily will need to apply sunscreen. Watch out for relections from water that may increase ultraviolet exposure.
The average sea water temperature in New Jersey in January is 5.2° which is extremely cold and not suitable for swimming. Taking a dip at this temperature would risk hypothermia.
The average total rainfall in New Jersey in January is 33.1cm and on average there are 8.8 rainy days in January making it a slightly wet time to visit the beach.
The maximum dew point (an indicator of humidity) in New Jersey in January is -2° which is a bit dry for some. The dew point is 2° in the previous month and -1° in the next month.
The average maximum relative humidity in New Jersey in January is typically 80.2%. The maximum relative humidity is 83.1% in the previous month and 81.1% in the next month.
The average relative humidity in New Jersey in January is typically 63.3%. The average relative humidity is 67.1% in the previous month and 62.5% in the next month.
The average maximum wind speed in New Jersey in January is typically 27kmh. The average maximum wind speed is 27kmh in the previous month and 29kmh in the next month.
The average wind speed in New Jersey in January is typically 13kmh. The average wind speed is 13kmh in the previous month and 13kmh in the next month.
The average wind direction in New Jersey in January is from the West-Northwest.
