April Weather in Saint John

Last updated: March 2, 2024

The weather in Saint John, United States, during April is characterized by an average temperature of 9°C (48°F). Highs can soar to 25°C (78°F), while lows may dip to -3°C (27°F). Typically, the humidity level in Saint John throughout April hovers around 85%.

-3°C (27°F)

Minimum temperature

9°C (48°F)

Average temperature

25°C (78°F)

Maximum temperature

85%

Humidity

Precipitation and Sunshine hours

In April, Saint John averages 119 mm (4.7 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 13 hours 21 minutes of daylight, with the sun shining for approximately 8 hours 22 minutes each day. Additionally, there is a 40% probability of sunny days during this period.

119 mm (4.7 inches)

Precipitation

13 rainy days

Rainy days

8 hours 22 minutes

Sunshine hours

40%

Chance of sun

UV Index

In April, the UV Index in Saint John reaches a maximum of 8, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 2 3 5 7 8 8 7 6 4 2 1 1
Exposure Low Moderate High VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 25 min 30 min 45 min

Compare Saint John's Climate with Cities Worldwide