The highest day temperature in July 2025 was 93°F. The lowest night temperature was 64°F. The average values for day and night temperatures during July were 82.9°F и 71.8°F respectivly.

The average sea surface temperature in July 2025 for New London was 72.2°F. The maximum and minimum values were 67.4°F and 75.4°F respectively.

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

Precipitation total in July for New London is 1.3 in. It makes july one of the most rainy months of the year.

The average wind speed in July is 6.9 mph. It makes July the most windless month of the year for New London.

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 New London in July is 7.7 hours.