Lake Louise records about 468mm of rain across roughly 135 wet days a year, which is a 37% chance on an average day. June is the wettest month at 68mm (15% of the annual total) and February the driest at 20mm. Local rain type: snow mix. Most precipitation falls as snow (October-May). Summer rain is brief and often afternoon thundershowers over the peaks. Waterproof layers essential; snow gear needed 8 months of the year.
Chance of rain on an average day: 37%
Rainfall climatology for Lake Louise. The live hour-by-hour answer for today loads at the top of this page from Open-Meteo and refreshes through the day — the figures below describe a typical year, not today.
Last updated: · Live forecast data refreshes hourly.
| Annual rainfall | 468mm |
| Rain days per year | 135 |
| Odds on an average day | 37% |
| Wettest month | June — 68mm over 21 days |
| Driest month | February — 20mm over 6 days |
| Rain type | snow mix |
| Best dry window | Late July through August offers the most stable weather with warm days and turquoise lake color at peak intensity. |
| Worst rain window | June brings the most liquid precipitation, often as afternoon thunderstorms that build over the Continental Divide. |
June delivers 240% more rain than February (68mm vs 20mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 15% of the annual total, so rain in Lake Louise is spread through the year — there is no season you can rely on being dry.
Lake Louise rain typically comes as discrete showers, so a compact umbrella and a flexible plan are usually enough.
Rain falls on about 21 days in June against 6 in February — the frequency swing matters more for planning than the millimetre totals.
Climate normals. Use them to judge whether today's live forecast at the top of the page is typical or unusual for the season.
| Month | Rainfall | Rain days | Chance on a given day | Highs |
|---|---|---|---|---|
| January | 25mm | 8 | 27% | -8°C |
| February | 20mm | 6 | 20% | -8°C |
| March | 20mm | 6 | 20% | -4°C |
| April | 28mm | 8 | 27% | 2°C |
| May | 48mm | 14 | 47% | 10°C |
| June | 68mm | 21 | 70% | 16°C |
| July | 58mm | 18 | 60% | 20°C |
| August | 52mm | 16 | 53% | 20°C |
| September | 42mm | 13 | 43% | 16°C |
| October | 28mm | 8 | 27% | 10°C |
| November | 30mm | 9 | 30% | 2°C |
| December | 28mm | 8 | 27% | -4°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Lake Louise we combine the hourly probability curve, expected volume in millimetres, and the city's own rainfall record into a single umbrella verdict.
| Factor | Weight | What it measures |
|---|---|---|
| Hourly probability | 40% | Peak and sustained chance of measurable rain across the next 24 hours. |
| Expected volume | 30% | Total millimetres, which separates a passing shower from a genuine soaking. |
| Timing & duration | 20% | When rain starts, when it eases, and the longest continuous dry window. |
| Local rain type | 10% | Drizzle, brief showers, thunderstorms or monsoon — each needs different gear. |
Live hourly values come from Open-Meteo and refresh through the day. Monthly rainfall figures are climate normals, so they describe a typical year rather than a forecast.
Lake Louise records rain on roughly 135 days a year — about a 37% chance on any given day — totalling around 468mm.
June, with about 68mm over 21 rain days. That is 15% of the entire year's rainfall in a single month.
February is the driest month at 20mm across roughly 6 days. Late July through August offers the most stable weather with warm days and turquoise lake color at peak intensity.
Most precipitation falls as snow (October-May). Summer rain is brief and often afternoon thundershowers over the peaks. Waterproof layers essential; snow gear needed 8 months of the year.
No. Probability is the chance that at least 0.2mm of rain falls at your location at some point in the period. Check the expected millimetres alongside it: 40% with 0.4mm is a passing shower, 40% with 12mm is a soaking.