Best time to visit Tadoussac
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.
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.
Tours in Tadoussac
2 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Tadoussac).
Last refreshed 2026-06-30.
Similar climatesQuebec City92% · Algonquin Park90% · Montreal89%
Other destinations with the most-alike year-round climate to Tadoussac (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 Tadoussac'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 | -14–-7 | -13 | 10 | 148 | 14.8 | 71% | 22 | 114 | 1 | Quiet | 2 |
| Feb | -14–-6 | -12 | 9 | 135 | 15.0 | 67% | 23 | 143 | 1 | Quiet | 3 |
| Mar | -8–-1 | -6 | 12 | 169 | 14.1 | 66% | 23 | 170 | 2 | Quiet | 3 |
| Apr | -2–5 | 1 | 10 | 129 | 12.9 | 63% | 21 | 200 | 4 | Quiet | 5 |
| May | 5–14 | 11 | 9 | 117 | 13.0 | 59% | 20 | 255 | 5 | Quiet | 6 |
| Jun | 11–20 | 19 | 13 | 142 | 10.9 | 68% | 18 | 242 | 5 | Quiet | 7 |
| Jul | 15–23 | 23 | 15 | 136 | 9.1 | 72% | 17 | 276 | 5 | Quiet | 7 |
| Aug | 15–22 | 22 | 13 | 138 | 10.6 | 72% | 17 | 249 | 5 | Peak | 7 |
| Sep | 11–18 | 16 | 10 | 101 | 10.1 | 72% | 18 | 211 | 4 | Quiet | 7 |
| Oct | 5–11 | 9 | 12 | 158 | 13.2 | 75% | 19 | 152 | 2 | Quiet | 5 |
| Nov | -2–3 | -1 | 12 | 148 | 12.3 | 73% | 21 | 114 | 1 | Quiet | 4 |
| Dec | -9–-3 | -8 | 12 | 166 | 13.8 | 73% | 22 | 99 | 1 | Quiet | 3 |
UV Index in Tadoussac by Month
UV index in Tadoussac peaks at 5 (moderate) in July, dropping to 1 (low) in December.
Best months in detail
September
7/1011–18°C (feels 16°C) · 10 rain days (101h) · 211 sun hours · 72% humidity · Quiet crowd · UV 4 (moderate)
August
7/1015–22°C · 13 rain days (138h) · 249 sun hours · 72% humidity · Peak crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)
June
7/1011–20°C (feels 19°C) · 13 rain days (142h) · 242 sun hours · 68% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)
Every month
Show the other 9 months in detail
January
2/10-14–-7°C (feels -13°C) · 10 rain days (148h) · 114 sun hours · 71% humidity · Quiet crowd · UV 1 (low)
February
3/10-14–-6°C (feels -12°C) · 9 rain days (135h) · 143 sun hours · 67% humidity · Quiet crowd · UV 1 (low)
March
3/10-8–-1°C (feels -6°C) · 12 rain days (169h) · 170 sun hours · 66% humidity · Quiet crowd · UV 2 (low) · sunniest 1 in 10 days reach 3 (moderate)
April
5/10-2–5°C (feels 1°C) · 10 rain days (129h) · 200 sun hours · 63% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 5 (moderate)
May
6/105–14°C (feels 11°C) · 9 rain days (117h) · 255 sun hours · 59% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 6 (high)
July
7/1015–23°C · 15 rain days (136h) · 276 sun hours · 72% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)
October
5/105–11°C (feels 9°C) · 12 rain days (158h) · 152 sun hours · 75% humidity · Quiet crowd · UV 2 (low) · sunniest 1 in 10 days reach 3 (moderate)
November
4/10-2–3°C (feels -1°C) · 12 rain days (148h) · 114 sun hours · 73% humidity · Quiet crowd · UV 1 (low)
December
3/10-9–-3°C (feels -8°C) · 12 rain days (166h) · 99 sun hours · 73% humidity · Quiet crowd · UV 1 (low)
Frequently asked questions about visiting Tadoussac
When is the best time to visit Tadoussac?
September is the highest-scoring month (7/10 on the Holiday Climate Index). Typical conditions: 11–18°C (10 rainy days). The top three months by score are September, August, June.
What is the worst time to visit Tadoussac?
January is the lowest-scoring month (2/10, capped by extreme cold). Typical conditions: -14–-7°C (10 rainy days).
Is Tadoussac too cold in winter?
4 months (January, February, March, 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 Tadoussac?
Search-interest seasonality (Google Trends 2021-2025) is lowest in January 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 Tadoussac have good weather but fewer tourists?
June (climate 7/10, crowd index 29) and July (climate 7/10, crowd index 0) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.
What is the UV index in Tadoussac by month?
UV peaks at 5 (moderate) in July and is lowest in December at 1 (low). Monthly peak values: Jan 1, Feb 1, Mar 2, Apr 4, May 5, Jun 5, Jul 5, Aug 5, Sep 4, Oct 2, Nov 1, Dec 1.
What is the UV index in Tadoussac in July?
July is the peak UV month in Tadoussac, with a daily-peak UV index of 5 (moderate). Standard sun protection — sunglasses and light SPF — is recommended.
How high can UV get in Tadoussac 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. June is the worst case: typical days average UV 5 (moderate), but the top 10% of days reach UV 7 (high) — and even higher. Months where the sunniest days routinely exceed the typical reading: March, April, May, June, July, August, October. Plan sun protection for the worst case, not the average.
Is air quality in Tadoussac bad for travelers?
PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 3 months: June, July, August. The worst month is June with a typical-day mean of 13 µg/m³ (moderate); on the worst 10% of days PM2.5 reaches 27 µg/m³ (unhealthy) 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.