Best time to visit Lake Louise
Re-score for me — drag the dial — every chart on the page recolours live for your heat limit 27°C
Default 27 °C is the upper edge of the Holiday Climate Index "ideal comfort" band (Scott, Rutty, Amelung & Tang, 2016). Above this, most warm-tourism travellers report measurable discomfort.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
Greyed factors are scored normally — extreme cold overrides them, so a clear sky or low rain can't lift the period.
How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.
Compare with another destination
Add as many as you like — stacked below the main strips above. Each row is just the recent-window score strip and (for beach destinations) sea-temperature strip.
Similar climatesMoraine Lake95% · Maligne Lake93% · Lake Minnewanka87%
Other destinations with the most-alike year-round climate to Lake Louise (apparent temperature, rain hours, sunshine — matched within the same trip-profile). The ±N chip compares each match's typical score for the current month against Lake Louise's. Based on the 2020-2024 climatology, not this year's actual weather.
Month-by-month
| Month | Temp °C | Feels °C | Rain days | Rain h | Rain h/day | Humidity | Wind km/h | Sun h | UV | Interest | Score |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | -13–-6 | -10 | 11 | 196 | 17.8 | 78% | 7 | 99 | 1 | Moderate | 2 |
| Feb | -14–-5 | -9 | 14 | 237 | 16.9 | 73% | 8 | 126 | 1 | Quiet | 2 |
| Mar | -10–-1 | -5 | 11 | 178 | 16.2 | 64% | 9 | 195 | 3 | Quiet | 3 |
| Apr | -6–3 | -1 | 11 | 154 | 14.0 | 58% | 10 | 235 | 5 | Quiet | 4 |
| May | 1–10 | 7 | 13 | 185 | 14.2 | 60% | 9 | 261 | 7 | Moderate | 5 |
| Jun | 4–15 | 13 | 14 | 178 | 12.7 | 60% | 10 | 275 | 6 | Moderate | 6 |
| Jul | 9–21 | 20 | 12 | 132 | 11.0 | 48% | 13 | 328 | 6 | Moderate | 8 |
| Aug | 8–20 | 19 | 12 | 135 | 11.3 | 51% | 12 | 273 | 5 | Peak | 8 |
| Sep | 5–16 | 14 | 11 | 125 | 11.4 | 58% | 12 | 225 | 4 | Moderate | 7 |
| Oct | -3–6 | 3 | 12 | 187 | 15.6 | 72% | 9 | 155 | 2 | Quiet | 4 |
| Nov | -11–-3 | -6 | 14 | 196 | 14.0 | 79% | 7 | 99 | 1 | Moderate | 3 |
| Dec | -13–-7 | -10 | 13 | 202 | 15.5 | 79% | 6 | 78 | 1 | Moderate | 2 |
UV Index in Lake Louise by Month
UV index in Lake Louise peaks at 7 (high) in May, dropping to 1 (low) in December. May, June have high UV — SPF 30+ and sunglasses recommended.
Best months in detail
July
8/109–21°C (feels 20°C) · 12 rain days (132h) · 328 sun hours · 48% humidity · Moderate crowd · UV 6 (moderate) · sunniest 1 in 10 days reach 8 (very high)
August
8/108–20°C (feels 19°C) · 12 rain days (135h) · 273 sun hours · 51% humidity · Peak crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)
September
7/105–16°C (feels 14°C) · 11 rain days (125h) · 225 sun hours · 58% humidity · Moderate crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (moderate)
Every month
Show the other 9 months in detail
January
2/10-13–-6°C (feels -10°C) · 11 rain days (196h) · 99 sun hours · 78% humidity · Moderate crowd · UV 1 (low)
February
2/10-14–-5°C (feels -9°C) · 14 rain days (237h) · 126 sun hours · 73% humidity · Quiet crowd · UV 1 (low)
March
3/10-10–-1°C (feels -5°C) · 11 rain days (178h) · 195 sun hours · 64% humidity · Quiet crowd · UV 3 (moderate)
April
4/10-6–3°C (feels -1°C) · 11 rain days (154h) · 235 sun hours · 58% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)
May
5/101–10°C (feels 7°C) · 13 rain days (185h) · 261 sun hours · 60% humidity · Moderate crowd · UV 7 (high) · sunniest 1 in 10 days reach 9 (very high)
June
6/104–15°C (feels 13°C) · 14 rain days (178h) · 275 sun hours · 60% humidity · Moderate crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (very high)
October
4/10-3–6°C (feels 3°C) · 12 rain days (187h) · 155 sun hours · 72% humidity · Quiet crowd · UV 2 (low) · sunniest 1 in 10 days reach 3 (moderate)
November
3/10-11–-3°C (feels -6°C) · 14 rain days (196h) · 99 sun hours · 79% humidity · Moderate crowd · UV 1 (low)
December
2/10-13–-7°C (feels -10°C) · 13 rain days (202h) · 78 sun hours · 79% humidity · Moderate crowd · UV 1 (low)
Frequently asked questions about visiting Lake Louise
When is the best time to visit Lake Louise?
July is the highest-scoring month (8/10 on the Holiday Climate Index). Typical conditions: 9–21°C (12 rainy days). The top three months by score are July, August, September.
What is the worst time to visit Lake Louise?
February is the lowest-scoring month (2/10, capped by extreme cold). Typical conditions: -14–-5°C (14 rainy days).
Is Lake Louise too cold in winter?
4 months (January, February, November, December) cross our cold deal-breaker (apparent temperature below the cap). Doable with the right gear, but expect the climate score to be held down by the gate.
When are crowds lowest in Lake Louise?
Search-interest seasonality (Google Trends 2021-2025) is lowest in October and peaks in August. Interest tracks both in-trip visitors and lead-time planners, so treat it as a "destination is on people's minds" signal rather than literal arrivals.
Which months in Lake Louise have good weather but fewer tourists?
September (climate 7/10, crowd index 45) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.
What is the UV index in Lake Louise by month?
UV peaks at 7 (high) in May and is lowest in December at 1 (low). Monthly peak values: Jan 1, Feb 1, Mar 3, Apr 5, May 7, Jun 6, Jul 6, Aug 5, Sep 4, Oct 2, Nov 1, Dec 1.
What is the UV index in Lake Louise in May?
May is the peak UV month in Lake Louise, with a daily-peak UV index of 7 (high). Apply SPF 30+, wear sunglasses, and seek shade during midday hours.
How high can UV get in Lake Louise on the sunniest days?
Most days look like the monthly average, but on the sunniest ~1 in 10 days UV climbs higher than the mean suggests. May is the worst case: typical days average UV 7 (high), but the top 10% of days reach UV 9 (very high) — and even higher. Months where the sunniest days routinely exceed the typical reading: April, May, June, July, August, September, October. Plan sun protection for the worst case, not the average.
Is air quality in Lake Louise bad for travelers?
PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 5 months: May, June, July, August, September. The worst month is July with a typical-day mean of 10 µg/m³ (moderate); on the worst 10% of days PM2.5 reaches 19 µg/m³ (unhealthy for sensitive) and higher. People with asthma, heart conditions, or sensitive children may want to avoid these months or limit outdoor activity. Source: CAMS via Open-Meteo.