Port Saint Johnʼs Weather & Climate: Best Time to Visit

With minimal seasonal shifts, Port Saint Johnʼs experiences a constant climate year-round. Typically, average maximum daytime temperatures range from a comfortable 27°C (81°F) in February to a comfortable 23°C (73°F) in the coolest month, July.

Nights vary from 21°C (70°F) in February to around 14°C (57°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Port Saint Johnʼs has a notably wet climate with abundant precipitation, recording 1121 mm (44 in) of rainfall per year. The climate in Port Saint Johnʼs shows significant variation throughout the year. Expect high rainfall in January, the wettest month, with an average of 131 mm (5.2 in) of precipitation over 15 rainy days.

In contrast, the driest month July offers drier and sunnier days, with around 41 mm (1.6 in) of rainfall over 5 rainy days. For more details, please visit our Port Saint Johnʼs Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

The relative humidity is high throughout the year in Port Saint Johnʼs.

The city experiences its highest humidity in March, reaching 81%. In June, the humidity drops to its lowest level at 66%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year