Annual average weather for New Jersey, United States

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Annual Average Weather for New Jersey, United States

The annual average maximum daily temperature is 17.5°C (63.5°F) which is not that warm but sunbathing may be possible on some clear days. The annual average water temperature is typically 12.8°C (55.0°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit. Annually there are on average 10.1 days of rain per month and 8.3 hours of sun per day.

When is the best time to visit New Jersey?

The best months to visit New Jersey are June, July, August, September, for the best beach weather, the most sunshine and optimal sunbathing and swimming conditions with the least chance of rain.

The weather is perfect for sunbathing in the months from June to August when the maximum temperature reaches above 26°C (72°F)

The sea is best for swimming between May and November when the sea temperature is above the average 13°C (55°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

Can you sunbathe in New Jersey year round?

No, you can't sunbathe in New Jersey all year round. Some months are too cold for sunbathing, however you might enjoy other beach activities such as taking a walk, going hiking along trails or just enjoying the scenery.

The weather is best for sunbathing in the months from June to August when the maximum temperature reaches above 26°C (72°F)

More info about the annual temperatures and sunshine.

Can you swim in New Jersey year round?

No, you can't swim in New Jersey all year round.

The warmest sea water temperatures in New Jersey are found in August when they peak at 22°C (72°F) and lowest in March when they dip to 3°C (37°F).

The sea temperature is above average for swimming between May and November when the sea temperature is above 13°C (55°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

The sea is good for swimming in the months from July to September when the sea temperature is above 19°C (66°F)

More info about the annual sea temperatures

When is the hottest month in New Jersey?

The hottest month in New Jersey is July when the average maximum temperature is very warm and perfect for sunbathing on clear days 30°C (86°F), average temperature is 25°C (77°F) and average minimum temperature is 20°C (68°F).

More info about the annual temperatures and sunshine.

When is the coldest month in New Jersey?

The coolest month in New Jersey is January when the average maximum temperature is 5°C (40°F), average temperature is 0°C (32°F) and average minimum temperature is -4°C (25°F).

More info about the annual temperatures and sunshine

When is the sunniest month in New Jersey?

The sunniest days in New Jersey are in April which has the most hours of sunshine per day. In April the sunshine percentage is 77% making it sunny and pleasant most of the time. The hours of sunshine per day are 9.1hrs making the days long and bright.

More info about the annual sunshine.

When is the least sunny month in New Jersey?

December has the least sunshine. In December the sunshine percentage is 58% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.0 hours of sunshine per day.

More info about the annual sunshine.

When is the driest month in New Jersey?

The driest month in New Jersey is January with 7.2cm (2.8inches) of rain and November has the fewest days of rain with 8.6 days with some rain, a quite rainy time to visit the beach.

More info about the annual rainfall

When is the wettest month in New Jersey?

The wettest month in New Jersey is August with 11.5cm (4.5inches) of rain and June has the most days of rain with 11.5 days with some rain, a pretty wet time to visit the beach.

More info about the annual rainfall.

When is the sea the coldest in New Jersey?

The coldest sea water temperatures in New Jersey are found in March when they dip to 3°C (37°F) which is extremely cold and not suitable for swimming. Taking a dip at this temperature would risk hypothermia.

More info about the annual sea temperatures.

When is the sea the warmest in New Jersey?

The warmest sea water temperatures in New Jersey are found in August when they peak at 22°C (72°F) which is warm and pleasant for relaxing and swimming for long periods.

More info about the annual sea temperatures.

When is the most humid month in New Jersey?

The most humid month in New Jersey is July with a dew point (an indicator of humidity) of 21°C (69°F) which is somewhat uncomfortable for most people in cities but fine on a beach.

More info about the annual humidity.

When is the least humid month in New Jersey?

The least humid month in New Jersey is January with a dew point of -2°C (28°F) which is a bit dry for some.

More info about the annual humidity.

When is the windiest month in New Jersey?

The most windy month in New Jersey is February when the average maximum windspeed is 29KM/H (18MPH) and the average wind speed is 13KM/H (8MPH).

More info about the annual wind conditions.

Annual Temperature for New Jersey

The hottest month in New Jersey is July when the average maximum temperature is 30°C (86°F), average temperature is 25°C (77°F) and average minimum temperature is 20°C (68°F).

The coolest month in New Jersey is January when the average maximum temperature is 5°C (5°F), average temperature is 0°C (32°F) and average minimum temperature is -4°C (25°F).

Annual Sunshine for New Jersey

The longest days in New Jersey are in June, with an average of 15 hours of daylight per day. December has the shortest days with an average of 9.4 hours of daylight per day.

The sunniest days in New Jersey are in April which has the most hours of sunshine per day. The sunshine percentage is 77% making it sunny and pleasant most of the time. The hours of sunshine per day are 9.1hrs making the days long and bright.

December has the least sunshine. The sunshine percentage is 58% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 7.0 hours of sunshine per day.

The ultraviolet index is the highest in July when it reaches 9.8 and lowest in December when it reaches 1.7.

An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Annual Sea Temperature for New Jersey

The warmest sea water temperatures in New Jersey are found in August when they peak at 22°C (72°F) and lowest in March when they dip to 3°C (37°F).

The sea is best for swimming between May and November when the temperature is above 13°C (55°F) which is very cold and bracing, it's not recommended you swim with out a full wet suit.

Annual Rainfall for New Jersey

The wettest month in New Jersey is August with 11.5cm (4.5inches) of rain and June has the most days of rain with 11.5 days with some rain, a pretty wet time to visit the beach.

The driest month in New Jersey is January with 7.2cm (2.8inches) of rain and November has the fewest days of rain with 8.6 days with some rain, a quite rainy time to visit the beach.

Annual Humidity for New Jersey

The most humid month in New Jersey is July with a dew point (an indicator of humidity) of 21°C (69°F) which is somewhat uncomfortable for most people in cities but fine on a beach.

The least humid month in New Jersey is January with a dew point of -2°C (28°F) which is a bit dry for some.

Annual Wind Speed for New Jersey

The most windy month in New Jersey is February when the average maximum windspeed is 29KM/H (18MPH) and the average wind speed is 13KM/H (8MPH).

The least windy month in New Jersey is August when the average maximum windspeed is 22KM/H (14MPH) and the average wind speed is 8KM/H (5MPH).

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