August weather forecastGuelph, Canada
August
Weather in August
The integral characteristics of the weather in August in Guelph, Canada essentially mirror those of July. The heat persists, although a slight decrease in temperature signals the imminent end of summer. The relative humidity maintains its level, indicating muggy conditions despite the slight dip in temperatures. Largely dry, occasional showers can be seen, adding a refreshing change to the monotony of the heat. Twilight comes a little earlier as the days begin to shorten, heralding the approach of autumn.Temperature
The advent of August in Guelph signifies a minor shift to an average high-temperature of a still warm 24.2°C (75.6°F), aligning closely with July. The nights of August in Guelph anticipate an average low-temperature of 14.3°C (57.7°F).Humidity
In August, the average relative humidity is 81%.Rainfall
In Guelph, in August, during 19.2 rainfall days, 68mm (2.68") of precipitation is typically accumulated. Throughout the year, in Guelph, there are 172.5 rainfall days, and 727mm (28.62") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Guelph.Daylight
The average length of the day in August in Guelph is 13h and 55min.On the first day of August in Guelph, Canada, sunrise is at 6:11 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 7:57 pm EDT.
Sunshine
The average sunshine in August in Guelph, Canada, is 9.9h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index, 5 in August, converts into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Guelph, Canada
- Average high temperature in August: 24.2°C
The warmest month (with the highest average high temperature) is July (24.8°C).
The month with the lowest average high temperature is January (-3.8°C).
- Average low temperature in August: 14.3°C
The month with the highest average low temperature is July (15°C).
The coldest month (with the lowest average low temperature) is January (-9.4°C).
Average pressure in August
Guelph, Canada
- Average pressure in August: 1014.6mbar
The month with the highest atmospheric pressure is March (1018.5mbar).
The month with the lowest atmospheric pressure is June (1013.2mbar).
Average wind speed in August
Guelph, Canada
- Average wind speed in August: 11.1km/h
The windiest month (with the highest average wind speed) is January (17.6km/h).
The calmest month (with the lowest average wind speed) is July (10.8km/h).
Average humidity in August
Guelph, Canada
- Average humidity in August: 81%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in August
Guelph, Canada
- Average rainfall in August: 68mm
The wettest month (with the highest rainfall) is May (75mm).
The driest month (with the least rainfall) is September (41mm).
Average rainfall days in August
Guelph, Canada
- Average rainfall days in August: 19.2 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in August
Guelph, Canada
- Average snowfall in August: 0mm
The month with the highest snowfall is February (162mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in August
Guelph, Canada
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (18.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Guelph, Canada
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in August: 9h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in August
Guelph, Canada
- Average sunshine days in August: 8.2 days
The month with the most sunshine days is September (11.5 days).
The months with the least sunshine days are January and February (7.3 days).
Average UV index in August
Guelph, Canada
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in August
Guelph, Canada
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 73).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in August
Guelph, Canada
- Average visibility in August: 9km
The months with the highest visibility are April, May, June, July, August and October (9km).
The months with the lowest visibility are January, February, March, September, November and December (8km).





