Fort Saint John
Canada
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Fort Saint John, Canada

The last month of the summer, August, is also an agreeable month in Fort Saint John, Canada, with average temperature fluctuating between 9.2°C (48.6°F) and 20.5°C (68.9°F).

Temperature

In Fort Saint John, the average high-temperature is relatively the same as in July - a still agreeable 20.5°C (68.9°F). The average low-temperature, in August, is 9.2°C (48.6°F).

Humidity

The average relative humidity in August is 50.6%.

Rainfall

In Fort Saint John, in August, during 10.4 rainfall days, 51.1mm (2") of precipitation is typically accumulated. In Fort Saint John, Canada, during the entire year, the rain falls for 66 days and collects up to 292.4mm (11.5") of precipitation.

Snowfall

Months with snowfall in Fort Saint John, Canada, are January through May, August through December. August is the first month it typically snows in Fort Saint John. Throughout August, Fort Saint John receives 1mm (0") of snow. Throughout the year, 1896mm (74.6") of snow is accumulated.

Daylight

The average length of the day in August is 15h.

Sunshine

The average sunshine in August is 8.4h.

UV index

In Fort Saint John, Canada, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for the average person.
Note: In August, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in August in Fort Saint John?

The average high-temperature, in August, in Fort Saint John, Canada, is 20.5°C (68.9°F), while the average low-temperature is 9.2°C (48.6°F).

What is the average humidity in August in Fort Saint John?

In Fort Saint John, Canada, the average relative humidity in August is 50.6%.

How many days does it rain in August in Fort Saint John?

In Fort Saint John, Canada, during August, the rain falls for 10.4 days and regularly aggregates up to 51.1mm (2") of precipitation.

When does it start to snow in Fort Saint John?

August is the first month it typically snows in Fort Saint John, Canada. Throughout August, Fort Saint John receives 1mm (0") of snow.

How many hours of daylight does Fort Saint John have in August?

In Fort Saint John, Canada, the average length of the day in August is 15h.

How many hours of sunshine does Fort Saint John have in August?

In Fort Saint John, the average sunshine in August is 8.4h.

What is the UV index intensity in August in Fort Saint John?

In August, the average daily maximum UV index in Fort Saint John is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to the Sun's UV rays.
Average temperature in August - Fort Saint John, Canada
  • Average high temperature in August: 20.5°C

The warmest month (with the highest average high temperature) is July (21.7°C).
The month with the lowest average high temperature is January (-8.7°C).

  • Average low temperature in August: 9.2°C

The month with the highest average low temperature is July (10.7°C).
The coldest month (with the lowest average low temperature) is January (-16.9°C).

Average humidity in August - Fort Saint John, Canada
  • Average humidity in August: 50.6%

The month with the highest relative humidity is November (72.3%).
The month with the lowest relative humidity is May (41.1%).

Average rainfall in August - Fort Saint John, Canada
  • Average rainfall in August: 51.1mm

The wettest month (with the highest rainfall) is July (75.2mm).
Driest months (with the lowest rainfall) are January and February (0.4mm).

Average rainfall days in August - Fort Saint John, Canada
  • Average rainfall days in August: 10.4 days

The month with the highest number of rainy days is July (12.9 days).
The month with the lowest number of rainy days is February (0.4 days).

Average snowfall in August - Fort Saint John, Canada
  • Average snowfall in August: 1mm

The month with the highest snowfall is January (327mm).
Months with the lowest snowfall are June and July (0mm).

Average snowfall days in August - Fort Saint John, Canada
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (10.8 days).
Months with the lowest number of snowfall days are June, July and August (0 days).

Average daylight in August / Average sunshine in August - Fort Saint John, Canada
  • Average daylight in August: 15h

The month with the longest days is June (Average daylight: 17.6h).
The month with shortest days is December (Average daylight: 7h).

  • Average sunshine in August: 8.4h

The month with most sunshine is July (Average sunshine: 9.3h).
The month with least sunshine is December (Average sunshine: 1.7h).

Average UV index in August - Fort Saint John, Canada
  • Average UV index in August: 5

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January, November and December (UV index 0).