The highest day temperature in July 2025 was 102°F. The lowest night temperature was 70°F. The average values for day and night temperatures during July were 91.9°F и 76.8°F respectivly.

The average sea surface temperature in July 2025 for Jersey City was 78.3°F. The maximum and minimum values were 75.4°F and 82.6°F respectively.

You can expect various weather conditions during July. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in July for Jersey City is 1.4 in. It makes july the most rainy month of the year.

The average wind speed in July is 7.2 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Jersey City in July is 8.6 hours.