The highest day temperature in July 2023 was 93°F. The lowest night temperature was 62°F. The average values for day and night temperatures during July were 85.4°F и 70.1°F respectivly.

The average sea surface temperature in July 2023 for Jamestown was 76.9°F. The maximum and minimum values were 70.6°F and 80.4°F respectively.

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

Precipitation total in July for Jamestown is 1.1 in. It makes july one of the least rainy months of the year.

The average wind speed in July is 6.7 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 Jamestown in July is 8.0 hours.