Saint Johns Weather in May

The climate in Saint Johns during May can be summarized as mild and dry.

May is in the spring in Saint Johns and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 25°C (77°F), whilst at night 5°C (42°F) is normal.

On average May is the driest month of the year in Saint Johns with around 10mm 0.4 inches of rain making it a dry time to visit. This rainfall is typically spread over 3 days, although this may vary considerably.

On the flip side this corresponds to an average of 12.7 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Saint Johns in May 2025.