Weather in July
Temperature
In Thunder Bay, July is identified by the highest average temperatures, reaching a peak of 24.3°C (75.7°F) and a low of 11.1°C (52°F).Rainfall
In Thunder Bay, in July, during 12.9 rainfall days, 87mm (3.43") of precipitation is typically accumulated. In Thunder Bay, during the entire year, the rain falls for 92.6 days and collects up to 547mm (21.54") of precipitation.Snowfall
June through August are months without snowfall in Thunder Bay.Sea temperature
In Thunder Bay, Canada, in July, the average water temperature is 7°C (44.6°F).Note: Swimming in 7°C (44.6°F) is deemed hazardous. Exposure to temperatures below 10°C (50°F) leads to immediate severe cold shock and hyperventilation.
Daylight
In July, the average length of the day is 15h and 38min.On the first day of the month, sunrise is at 6:00 am and sunset at 10:01 pm. On the last day of July, in Thunder Bay, sunrise is at 6:31 am and sunset at 9:34 pm EDT.
Sunshine
In July, the average sunshine is 8.6h.UV index
June and July, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 7 during July translates into the following guidance:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
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Average temperature in July
Thunder Bay, Canada
- Average high temperature in July: 24.3°C
The warmest month (with the highest average high temperature) is July (24.3°C).
The month with the lowest average high temperature is January (-8°C).
- Average low temperature in July: 11.1°C
The month with the highest average low temperature is July (11.1°C).
The coldest month (with the lowest average low temperature) is January (-20.6°C).
Average rainfall in July
Thunder Bay, Canada
- Average rainfall in July: 87mm
The wettest month (with the highest rainfall) is August (89.5mm).
The driest month (with the least rainfall) is January (0.4mm).
Average rainfall days in July
Thunder Bay, Canada
- Average rainfall days in July: 12.9 days
The month with the highest number of rainy days is June (13.8 days).
The month with the least rainy days is January (0.6 days).
Average snowfall in July
Thunder Bay, Canada
- Average snowfall in July: 0mm
The month with the highest snowfall is December (389mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in July
Thunder Bay, Canada
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average sea temperature in July
Thunder Bay, Canada
- Average sea temperature in July: 7°C
The best months for swimming (with the highest average sea temperature) are August and September (13°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (2°C).
Average daylight in July /
Average sunshine in July
Thunder Bay, Canada
- Average daylight in July: 15h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in July: 8h and 4min
The month with the most sunshine is June (Average sunshine: 8h and 42min).
The months with the least sunshine are November and December (Average sunshine: 2h and 54min).
Average UV index in July
Thunder Bay, Canada
- Average UV index in July: 7
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 1).
Thunder Bay, Canada
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