September
OK
13°C / 3.5°C
18 rain days
cool, very wet
Best time to visit Lake Louise
Lake Louise, Canada — ranked month by month from data: temperature, rainfall, snow, and peak hazard seasons. Every month has trade-offs — pick what you can tolerate.
OK — shoulder months
Months to skip
August
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19.7°C / 8.7°C
20 rain days
mild, very wet
- extremely wet (20 rain days)
July
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20.3°C / 9.2°C
23 rain days
mild, very wet
- extremely wet (23 rain days)
June
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15.2°C / 5.3°C
23 rain days
cool, very wet
- extremely wet (23 rain days)
May
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10.8°C / 1.6°C
20 rain days
cool, very wet
- extremely wet (20 rain days)
October
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5°C / -3.3°C
19 rain days
chilly, freezing nights, very wet
- freezing at night (-3.3°C)
- extremely wet (19 rain days)
April
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4.2°C / -4.1°C
20 rain days
cold, freezing nights, very wet
- freezing at night (-4.1°C)
- extremely wet (20 rain days)
March
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-0.1°C / -8.4°C
20 rain days
cold, freezing nights, very wet
- bitterly cold (overnight -8.4°C)
- extremely wet (20 rain days)
November
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-3.3°C / -10.6°C
18 rain days
cold, freezing nights, very wet
- bitterly cold (overnight -10.6°C)
- extremely wet (18 rain days)
January
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-6°C / -12.5°C
18 rain days
cold, freezing nights, very wet
- bitterly cold (overnight -12.5°C)
- extremely wet (18 rain days)
February
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-6.6°C / -14.2°C
18 rain days
cold, freezing nights, very wet
- bitterly cold (overnight -14.2°C)
- extremely wet (18 rain days)
December
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-8.7°C / -14.9°C
16 rain days
cold, freezing nights, very wet
- bitterly cold (overnight -14.9°C)
- heavy rain expected (16 days)
How we ranked these
Each month is scored on temperature comfort (18–27°C avg high is the sweet spot), rainfall (more rain days = lower score), snow days, and peak hazard seasons (hurricanes, monsoons, etc.). Green-tier months are within ideal range with no major issues. Yellow are workable but with trade-offs. Red has at least one significant problem — extreme heat or cold, heavy rain, or peak storm season.