The climate in Saint John during May can be summarized as cool and damp.
May is in the spring in Saint John and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 14°C (57°F), whilst at night 5°C (41°F) is normal.
|Daytime temperature||13.6°C 56.5°F|
|Nightly temperature||5°C 41°F|
|Average temperature||9.3°C 48.7°F|
|Daily sunshine||7 hrs|
|Avg rainfall||109 mm 4.3 ins|
|Rainy days||14 days|
|Sea temperature||5.9°C 42.6°F|
|Windspeed||16.2kph 10 mph|
On average May is the 4th wettest month of the year in Saint John with around 109mm 4.3 inches of rain making it a damp time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.
On the flip side this corresponds to an average of 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 John in May 2022.
|Hottest month:||August||21.1°C 70°F|
|Driest month:||March||95mm 3.7ins|
|Coldest month:||January||-2.3°C 27.9°F|
|Wettest month:||December||145mm 5.7ins|