Weather in June
Temperature
June in Thunder Bay brings a slight elevation in the average high-temperature, transitioning from May's refreshing 16.2°C (61.2°F) to an agreeable 20.6°C (69.1°F). Thunder Bay reports a steady low-temperature average of 7.1°C (44.8°F) throughout June, revealing a large deviation from the daytime high.Rainfall
In Thunder Bay, during June, the rain falls for 13.8 days and regularly aggregates up to 84mm (3.31") of precipitation. Throughout the year, there are 92.6 rainfall days, and 547mm (21.54") of precipitation is accumulated.Snowfall
In Thunder Bay, Canada, snow does not fall in June through August.Sea temperature
In Thunder Bay, in June, the average water temperature is 4°C (39.2°F).Note: While swimming, this is identified as life-endangering and very dangerous. The water's freezing temperatures cause intense discomfort and induce rapid hyperventilation. A specialized swimsuit is mandatory to mitigate thermal damage.
Daylight
With an average of 16h and 0min of daylight, June has the longest days of the year in Thunder Bay.On the first day of the month, sunrise is at 5:59 am and sunset at 9:50 pm. On the last day of June, sunrise is at 5:59 am and sunset at 10:01 pm EDT.
Sunshine
June has the most sunshine of the year, with an average of 8.7h of sunshine.UV index
The months with the highest UV index in Thunder Bay are June and July, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 7 in June converts into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
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Average temperature in June
Thunder Bay, Canada
- Average high temperature in June: 20.6°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 June: 7.1°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 June
Thunder Bay, Canada
- Average rainfall in June: 83.5mm
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 June
Thunder Bay, Canada
- Average rainfall days in June: 13.8 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 June
Thunder Bay, Canada
- Average snowfall in June: 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 June
Thunder Bay, Canada
- Average snowfall days in June: 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 June
Thunder Bay, Canada
- Average sea temperature in June: 4°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 June /
Average sunshine in June
Thunder Bay, Canada
- Average daylight in June: 16h and 0min
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 June: 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 June
Thunder Bay, Canada
- Average UV index in June: 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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