August weather forecastFort Saint John, Canada
August
Weather in August
August, the last month of the summer in Fort Saint John, is another pleasant month, with an average temperature varying between 8.3°C (46.9°F) and 21.4°C (70.5°F).Temperature
With the onset of August, the average high-temperature registers at a still agreeable 21.4°C (70.5°F), subtly different from July's 22.2°C (72°F). August nights in Fort Saint John show a substantial disparity from the daytime peak with an average low-temperature of 8.3°C (46.9°F).Humidity
In August, the average relative humidity is 65%.Rainfall
In Fort Saint John, in August, during 12.8 rainfall days, 38mm (1.5") of precipitation is typically accumulated. Throughout the year, there are 103.7 rainfall days, and 370mm (14.57") of precipitation is accumulated.Snowfall
In Fort Saint John, Canada, snow does not fall in July and August.Daylight
The average length of the day in August in Fort Saint John is 15h and 2min.On the first day of the month, sunrise is at 5:08 am and sunset at 9:11 pm. On the last day of August, in Fort Saint John, sunrise is at 6:07 am and sunset at 7:59 pm MST.
Sunshine
In Fort Saint John, Canada, the average sunshine in August is 10.9h.UV index
In August, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 4 in August, converts into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Fort Saint John, Canada
- Average high temperature in August: 21.4°C
The warmest month (with the highest average high temperature) is July (22.2°C).
The month with the lowest average high temperature is December (-9.2°C).
- Average low temperature in August: 8.3°C
The month with the highest average low temperature is July (9.1°C).
The coldest month (with the lowest average low temperature) is December (-16°C).
Average pressure in August
Fort Saint John, Canada
- Average pressure in August: 1012.1mbar
The month with the highest atmospheric pressure is February (1019.3mbar).
The month with the lowest atmospheric pressure is June (1010.6mbar).
Average wind speed in August
Fort Saint John, Canada
- Average wind speed in August: 9.4km/h
The windiest months (with the highest average wind speed) are September and October (9.9km/h).
The calmest month (with the lowest average wind speed) is March (8.5km/h).
Average humidity in August
Fort Saint John, Canada
- Average humidity in August: 65%
The months with the highest relative humidity are January and March (94%).
The month with the lowest relative humidity is May (61%).
Average rainfall in August
Fort Saint John, Canada
- Average rainfall in August: 38mm
The wettest month (with the highest rainfall) is June (66mm).
The driest month (with the least rainfall) is February (12mm).
Average rainfall days in August
Fort Saint John, Canada
- Average rainfall days in August: 12.8 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is December (1.5 days).
Average snowfall in August
Fort Saint John, Canada
- Average snowfall in August: 0mm
The month with the highest snowfall is November (158mm).
The months with the least snowfall are July and August (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 (15.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Fort Saint John, Canada
- Average daylight in August: 15h and 0min
The month with the longest days is June (Average daylight: 17h and 36min).
The month with the shortest days is December (Average daylight: 7h and 0min).
- Average sunshine in August: 10h and 54min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in August
Fort Saint John, Canada
- Average sunshine days in August: 15.8 days
The month with the most sunshine days is December (19 days).
The month with the least sunshine days is April (11 days).
Average UV index in August
Fort Saint John, Canada
- Average UV index in August: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in August
Fort Saint John, Canada
- Average cloud cover in August: 32
The month with the most cloud cover is March (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in August
Fort Saint John, Canada
- Average visibility in August: 9km
The months with the highest visibility are May, June, July, August and September (9km).
The months with the lowest visibility are January, February, March and December (5km).





