July weather forecastSarnia, Canada
July
Weather in July
July in Sarnia, Canada, is a warm summer month, with temperature in the range of an average low of 16.3°C (61.3°F) and an average high of 25.8°C (78.4°F).Temperature
July proves to be the warmest month, recording an average peak temperature of 25.8°C (78.4°F) and a minimum temperature of 16.3°C (61.3°F).Humidity
In July, the average relative humidity in Sarnia is 79%.Rainfall
In July, the rain falls for 14.9 days. Throughout July, 53mm (2.09") of precipitation is accumulated. Throughout the year, there are 140.4 rainfall days, and 493mm (19.41") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Sea temperature
In July, the average sea temperature is 22.3°C (72.1°F).Note: Consideration of an individual's cold resistance, combined with conditions like sunshine, wind, and temperature, suggests that swimming in 22.3°C (72.1°F) water can be delightful. (Olympic swimming is usually in 25°C (77°F) to 28°C (82.4°F) water.)
Daylight
The average length of the day in July is 14h and 59min.On the first day of the month, sunrise is at 5:54 am and sunset at 9:12 pm. On the last day of July, in Sarnia, sunrise is at 6:20 am and sunset at 8:51 pm EDT.
Sunshine
The month with the most sunshine in Sarnia is July, with an average of 10.3h of sunshine.UV index
July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 6 in July transforms into this advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Sarnia, Canada
- Average high temperature in July: 25.8°C
The warmest month (with the highest average high temperature) is July (25.8°C).
The month with the lowest average high temperature is January (-2.3°C).
- Average low temperature in July: 16.3°C
The month with the highest average low temperature is July (16.3°C).
The coldest month (with the lowest average low temperature) is January (-7.5°C).
Average pressure in July
Sarnia, Canada
- Average pressure in July: 1014.4mbar
The month with the highest atmospheric pressure is March (1018.8mbar).
The month with the lowest atmospheric pressure is June (1013.5mbar).
Average wind speed in July
Sarnia, Canada
- Average wind speed in July: 11km/h
The windiest month (with the highest average wind speed) is January (18.2km/h).
The calmest month (with the lowest average wind speed) is July (11km/h).
Average humidity in July
Sarnia, Canada
- Average humidity in July: 79%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in July
Sarnia, Canada
- Average rainfall in July: 53mm
The wettest month (with the highest rainfall) is May (54mm).
The driest month (with the least rainfall) is February (28mm).
Average rainfall days in July
Sarnia, Canada
- Average rainfall days in July: 14.9 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in July
Sarnia, Canada
- Average snowfall in July: 0mm
The month with the highest snowfall is February (99mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in July
Sarnia, Canada
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in July
Sarnia, Canada
- Average sea temperature in July: 22.3°C
The best month for swimming (with the highest average sea temperature) is August (23.2°C).
The coldest months (with the lowest average sea temperature) are February and March (0.3°C).
Average daylight in July /
Average sunshine in July
Sarnia, Canada
- Average daylight in July: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in July: 10h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in July
Sarnia, Canada
- Average sunshine days in July: 13.9 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is February (11.3 days).
Average UV index in July
Sarnia, Canada
- Average UV index in July: 6
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in July
Sarnia, Canada
- Average cloud cover in July: 30
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in July
Sarnia, Canada
- Average visibility in July: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
