The highest day temperature in July 2023 was 93°F. The lowest night temperature was 58°F. The average values for day and night temperatures during July were 79.8°F и 66.5°F respectivly.

The average sea surface temperature in July 2023 for Saint John was 59.6°F. The maximum and minimum values were 51.6°F and 66.2°F respectively.

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

Precipitation total in July for Saint John is 2.0 in. It makes july the most rainy month of the year.

The average wind speed in July is 6.1 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 Saint John in July is 6.2 hours.