Thunder Bay
Canada
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Thunder Bay, Canada

The wettest month (with the highest rainfall) is August (89.5mm).
The driest month (with the lowest rainfall) is January (0.4mm).

The month with the highest number of rainy days is June (13.8 days).
The month with the lowest number of rainy days is January (0.6 days).

The month with the highest number of snowfall days is December (13.9 days).
Months with the lowest number of snowfall days are June, July and August (0 days).

Best months for swimming (with the highest average sea temperature) are August and September (13°C).
Coldest months (with the lowest average sea temperature) are January, February, March and April (2°C).

The month with the longest days is June (Average daylight: 17.4h).
The month with shortest days is December (Average daylight: 9.6h).

The month with most sunshine is June (Average sunshine: 8.7h).
Months with least sunshine are November and December (Average sunshine: 2.9).

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