April weather forecast
St. John's, Canada

April beholds the real charm of spring in St. John's, with the city offering a variety of outdoor activities. The winter chill starts to recede, shown by the high temperature moving up to a comfortable 5.6°C (42.1°F) and the low rising to -1.9°C (28.6°F). Rains become frequent, and the snowfall diminishes drastically. The city receives more daylight and sunshine, signifying the onset of warm days. The refreshing breeze and warming seawater elicit a pleasant aura in the city.

Temperature

St. John's's transition into April sees a mild rise in the average high-temperature, edging from 1°C (33.8°F) in March to a still cold 5.6°C (42.1°F). Throughout the month of April, St. John's sees a steady low-temperature average of -1.9°C (28.6°F).

Rainfall

In St. John's, during April, the rain falls for 13.9 days and regularly aggregates up to 96mm (3.78") of precipitation. In St. John's, during the entire year, the rain falls for 162.7 days and collects up to 1207mm (47.52") of precipitation.

Snowfall

January through June, October through December are months with snowfall in St. John's. In St. John's, during April, snow falls for 7 days and regularly aggregates up to 253mm (9.96") of snow. Throughout the year, in St. John's, Canada, there are 79 snowfall days, and 3349mm (131.85") of snow is accumulated.

Sea temperature

In St. John's, in April, the average water temperature is 0.2°C (32.4°F).
Note: In the water-based sport of swimming, this state is life-threatening and exceedingly dangerous. The freezing water causes severe discomfort, leading to rapid hyperventilation. A specialized swimsuit is compulsory to avert thermal damage.

Daylight

In April, the average length of the day in St. John's is 13h and 40min.
On the first day of April in St. John's, sunrise is at 6:37 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:11 pm NDT.

Sunshine

In April, the average sunshine in St. John's is 4.7h.

UV index

The average daily maximum UV index in April in St. John's is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 4 in April translates into this advice:
Be vigilant - Suggestions to stave off sun damage are provided. It's recommended to limit sun exposure when its radiation is at its peak during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.