Monthly weather forecast and climate
Stephenville, Canada

How many days does it rain in Stephenville?

Throughout the year, there are 215 rainfall days, and 1309mm (51.5") of precipitation is accumulated.

What is the rainiest month in Stephenville?

The month with the most rainfall is January when the rain falls for 25 days and typically aggregates up to 135mm (5.3") of precipitation.

What is the coldest month in Stephenville?

With an average high-temperature of -4°C (24.8°F) and an average low-temperature of -12°C (10.4°F), February is the coldest month.

What month is the sea coldest in Stephenville?

With an average sea temperature of -0.3°C (31.5°F), March is the month with the coldest seawater in Stephenville, Canada. For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

What is the driest month in Stephenville?

April is the month with the least rainfall in Stephenville. Rain falls for 15 days and accumulates 73mm (2.9") of precipitation.

What are the warmest months in Stephenville?

July and August, with an average high-temperature of 20°C (68°F), are warmest months in Stephenville, Canada.

What is the month with the warmest sea water in Stephenville?

August is the month with the warmest seawater, with an average sea temperature of 15.5°C (59.9°F). For swimming, a surface water temperature of 15.5°C (59.9°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).
Average rainfall - Stephenville, Canada
Average rainfall days - Stephenville, Canada

The month with the highest number of rainy days is January (25 days).
Months with the lowest number of rainy days are May and June (14 days).

Average sea temperature - Stephenville, Canada

The best month for swimming (with the highest average sea temperature) is August (15.5°C).
The coldest month (with the lowest average sea temperature) is March (-0.3°C).

Average daylight / Average sunshine - Stephenville, Canada
Average UV index - Stephenville, Canada