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The weather in June in Thunder Bay

It's pleasantly warm in June in Thunder Bay with an average temperature of 21°C. Temperatures this month range from a low of 18°C to a high of 25°C. At night, you can expect temperatures between 6°C and 13°C.

Looking for sun? June isn’t a good month to be in Thunder Bay. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in June for Thunder Bay, Canada. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 30°C in 2021, Thunder Bay reached the highest temperature in June over the past 10 years. The lowest daytime temperature in this month was 8°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of -3°C to a highest value of 17°C.

Rainfall amount

In June, there is an average of 123 mm of precipitation, spread over 14 days. The wind speed is around 4 Bft, mostly coming from the South.

Daily weather in June for Thunder Bay

Click on any day in June to get detailed info about the usual weather on that day in Thunder Bay. Check out the historical temperatures and precipitation over the past 10 years on this day.

June weather comparison

  Thunder Bay New York
Average temperature 21°C 27°C
Max. temperature 25°C 31°C
Min. temperature 6°C -5°C
Total precipitation 123 mm 78 mm
Rainy days 14 days 11 days

Start of June

The month of June starts in Thunder Bay with mild temps, averaging around 21°C during the day and nights around 9°C.

Mid June

By mid-June, daytime temps rise to around 22°C, with nights around 10°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of June

By the end of June, the average daytime temperature in Thunder Bay is around 23°C, while nighttime temps are about 12°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.

Find affordable trips to Thunder Bay

UV index

The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of Thunder Bay for all months and discover the best travel time

Curious about the weather in other parts of Canada? Check out the climate and weather for spots like Vancouver, Toronto, Niagara Falls, or explore other destinations in Canada.

Temperature charts

These charts show the average temperatures in June in Thunder Bay, Canada. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in June in Thunder Bay

Temperature in June in Thunder Bay over the years

Precipitation charts

These charts show the average amount of precipitation in June in Thunder Bay, Canada. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in June in Thunder Bay

Total precipitation in June in Thunder Bay over the years

Daily UV index in June in Thunder Bay

This chart shows the average daily UV index in June in Thunder Bay, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in June in Thunder Bay

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Average weather in Thunder Bay by month

Click on a month below to see detailed weather info for Thunder Bay. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.