The highest day temperature in July 2026 was 100°F. The lowest night temperature was 61°F. The average values for day and night temperatures during July were 80.0°F и 68.5°F respectivly.

The average sea surface temperature in July 2026 for Chatham was 70.0°F. The maximum and minimum values were 67.2°F and 72.2°F respectively.

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

Precipitation total in July for Chatham is 0.9 in.

The average wind speed in July is 11.0 mph. It makes July one of the most windless months of the year for Chatham.

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 Chatham in July is 8.7 hours.