When to go · Thunder Bay
Thunder Bay in December
Avoid month. Listed as a month to avoid: Nov–Mar (cold, snow, some parks closed).
Key facts
- Verdict
- Avoid
- Temperature
- −5°C (23°F)23°F (−5°C) / −15°C (5°F)5°F (−15°C)
- average high / low
- Rain days
- 9
- Crowds
- Medium
- Canada overall
- Prices
- High
- Canada overall
Verdict
Listed as a month to avoid: Nov–Mar (cold, snow, some parks closed).
Is another month better than December?
December is rated avoid. These months rate higher:
Weather in December
- Thunder BayHighs around -5 °C (23 °F), lows around -15 °C (5 °F), rain on about 9 daysHighs around 23 °F (-5 °C), lows around 5 °F (-15 °C), rain on about 9 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Christmas and Boxing Day big impact
25–26 Dec · Canada
Most businesses closed on the 25th; Boxing Day sales.
Crowds and prices
- Crowds · Canada overall
- Medium
- Prices · Canada overall
- High
Canada overall: Christmas markets and ski openings; winter tyres required on many BC highways.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Thunder Bay, side by side.
Verdict
Dec: Avoid
Jun: Great (better)
Daytime high
Dec: -5 °C (23 °F)23 °F (-5 °C)
Jun: 22 °C (72 °F)72 °F (22 °C)
Night low
Dec: -15 °C (5 °F)5 °F (-15 °C)
Jun: 8 °C (46 °F)46 °F (8 °C)
Rain days
Dec: 9 (better)
Jun: 11
Crowds
Dec: Medium
Jun: Medium
Prices
Dec: High
Jun: Medium
Festivals listed
Dec: 1
Jun: 1
December: Listed as a month to avoid: Nov–Mar (cold, snow, some parks closed).
June: Inside Thunder Bay's best window: Jun–Sep.
Thunder Bay: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm coat, hat and gloves for mornings and evenings