The highest day temperature in July 2025 was 75°F. The lowest night temperature was 57°F. The average values for day and night temperatures during July were 69.3°F и 61.6°F respectivly.

The average sea surface temperature in July 2025 for Lunenburg was 60.6°F. The maximum and minimum values were 57.4°F and 62.8°F respectively.

Most of the days in July are gloomy but you can also expect sunny days.

Precipitation total in July for Lunenburg is 1.7 in. It makes july the least rainy month of the year.

The average wind speed in July is 7.6 mph. It makes July one of the most windless months of the year for Lunenburg.

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 Lunenburg in July is 6.3 hours.