April is one of the cooler months of the year in Rimouski, with average highs near 4.6°C and lows around -2.3°C (mean 1.2°C). It is about average for rainfall, averaging 71 mm of rainfall and 83% relative humidity across the period.
April is one of the cooler months of the year in Rimouski. Across 45 years of records, the warmest April in Rimouski was 2010 — when the month averaged 4.3°C — while the coldest was 1982 at -2.2°C. Typical April days reach 4.6°C with nights near -2.3°C. The long-term trend is warming, about 0.2°C per decade.
April is about average for rainfall in Rimouski, averaging 71 mm of rainfall. The wettest April on record was 2005 with 144 mm, while the driest was 1997 at 26 mm.
Relative humidity in Rimouski during April averages 83%. The most humid Aprils were 1984 and 2017 at 90%, and the least humid was 2024 at 75%.
April receives about 4.4 kWh/m²/day of solar energy in Rimouski. The sunniest April was 2016 at 5.3 kWh/m²/day, and the cloudiest were 1988 and 2017 at 3.8.
Average wind speed in Rimouski during April is 2.6 m/s. The windiest Aprils were 1982, 2015 and 2019 at 3.2 m/s, while the calmest were 1983 and 2017 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 0.8°C | 1.0°C | 1.3°C | 0.9°C | 2.2°C | +1.4°C |
| Avg High | 4.4°C | 4.7°C | 4.7°C | 4.0°C | 5.7°C | +1.3°C |
| Avg Low | -2.7°C | -2.7°C | -2.1°C | -2.2°C | -1.3°C | +1.4°C |
| Avg Rain | 69 mm | 55 mm | 81 mm | 89 mm | 54 mm | -15 mm |
April temperatures in Rimouski have risen by about 2.8°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -16.9°C (2003) to a record high of 16.8°C (1987).
Rainfall in April is about average for rainfall, averaging 71 mm, with a wettest year of 144 mm.
A good time to visit Rimouski
April is a good time to visit Rimouski, with days averaging 4.6°C and nights around -2.3°C (mean 1.2°C, cooler than Rimouski's yearly average) and moderate rainfall. July and August are marginally more temperate, but April still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 5.7°C | 2.3°C | -1.1°C | 15.9°C | -9.9°C | 70 mm | 78% | 2.9 m/s | 4.3 |
| 2024 | 7.0°C | 3.4°C | -0.2°C | 14.0°C | -5.7°C | 38 mm | 75% | 3.1 m/s | 5 |
| 2023 | 6.9°C | 2.8°C | -1.3°C | 14.0°C | -10.3°C | 33 mm | 80% | 2.5 m/s | 4.5 |
| 2022 | 4.8°C | 1.5°C | -1.8°C | 11.3°C | -7.7°C | 59 mm | 82% | 2.7 m/s | 4.8 |
| 2021 | 6.6°C | 3.2°C | -0.2°C | 14.0°C | -7.7°C | 61 mm | 83% | 2.5 m/s | 4.5 |
| 2020 | 3.1°C | 0.0°C | -3.0°C | 9.2°C | -6.7°C | 63 mm | 82% | 3.1 m/s | 4.6 |
| 2019 | 3.1°C | 0.2°C | -2.7°C | 11.3°C | -10.8°C | 103 mm | 85% | 3.2 m/s | 4.2 |
| 2018 | 2.1°C | -1.2°C | -4.4°C | 13.1°C | -12.6°C | 119 mm | 88% | 2.8 m/s | 4.3 |
| 2017 | 3.3°C | 0.6°C | -2.1°C | 11.1°C | -9.5°C | 93 mm | 90% | 2.1 m/s | 3.8 |
| 2016 | 2.4°C | -0.9°C | -4.3°C | 11.3°C | -14.3°C | 47 mm | 79% | 2.8 m/s | 5.3 |
| 2015 | 3.3°C | 0.3°C | -2.7°C | 9.8°C | -12.8°C | 80 mm | 83% | 3.2 m/s | 4.5 |
| 2014 | 3.6°C | 0.7°C | -2.2°C | 10.5°C | -7.8°C | 93 mm | 87% | 2.8 m/s | 3.9 |
| 2013 | 5.3°C | 1.4°C | -2.5°C | 15.7°C | -9.2°C | 80 mm | 81% | 2.8 m/s | 4.7 |
| 2012 | 5.9°C | 2.9°C | -0.1°C | 14.6°C | -3.4°C | 121 mm | 80% | 2.9 m/s | 4.2 |
| 2011 | 3.6°C | 0.8°C | -2.0°C | 9.7°C | -8.4°C | 102 mm | 84% | 3.1 m/s | 4.3 |
| 2010 🔥 | 7.4°C | 4.3°C | 1.1°C | 12.4°C | -1.8°C | 56 mm | 82% | 2.4 m/s | 4.6 |
| 2009 | 5.9°C | 2.6°C | -0.6°C | 16.1°C | -4.0°C | 112 mm | 84% | 3 m/s | 4.1 |
| 2008 | 5.0°C | 2.2°C | -0.6°C | 12.2°C | -7.4°C | 113 mm | 88% | 2.5 m/s | 4 |
| 2007 | 5.1°C | 1.9°C | -1.3°C | 15.9°C | -6.9°C | 51 mm | 82% | 2.9 m/s | 4.2 |
| 2006 | 6.4°C | 2.4°C | -1.6°C | 14.9°C | -6.1°C | 52 mm | 82% | 2.3 m/s | 4.6 |
| 2005 🌧️ | 4.9°C | 2.1°C | -0.7°C | 10.6°C | -4.2°C | 144 mm | 85% | 3 m/s | 4 |
| 2004 | 3.2°C | -0.1°C | -3.5°C | 12.0°C | -9.8°C | 84 mm | 87% | 2.5 m/s | 4 |
| 2003 | 3.1°C | -1.1°C | -5.2°C | 12.2°C | -16.9°C | 63 mm | 81% | 2.3 m/s | 4.5 |
| 2002 | 4.7°C | 1.2°C | -2.3°C | 12.6°C | -8.0°C | 58 mm | 79% | 2.4 m/s | 4.4 |
| 2001 | 5.1°C | 1.3°C | -2.6°C | 15.5°C | -8.1°C | 36 mm | 80% | 2.4 m/s | 4.7 |
| 2000 | 3.9°C | 0.5°C | -2.9°C | 9.7°C | -8.2°C | 101 mm | 81% | 2.3 m/s | 4.1 |
| 1999 | 5.0°C | 1.3°C | -2.4°C | 12.0°C | -9.5°C | 38 mm | 81% | 2.4 m/s | 4.7 |
| 1998 | 7.1°C | 3.0°C | -1.1°C | 14.5°C | -4.9°C | 29 mm | 75% | 2.3 m/s | 5 |
| 1997 | 3.8°C | -0.1°C | -3.9°C | 13.0°C | -10.4°C | 26 mm | 80% | 2.4 m/s | 4.8 |
| 1996 | 5.2°C | 1.8°C | -1.6°C | 13.8°C | -6.9°C | 81 mm | 83% | 2.4 m/s | 3.9 |
| 1995 | 2.7°C | -0.9°C | -4.4°C | 11.1°C | -15.9°C | 56 mm | 85% | 2.3 m/s | 4.3 |
| 1994 | 3.9°C | 0.2°C | -3.5°C | 12.5°C | -16.8°C | 72 mm | 82% | 2.5 m/s | 4.3 |
| 1993 | 5.8°C | 2.2°C | -1.3°C | 13.2°C | -11.1°C | 76 mm | 81% | 2.4 m/s | 3.9 |
| 1992 | 3.8°C | 0.1°C | -3.6°C | 11.4°C | -10.8°C | 75 mm | 82% | 2.4 m/s | 4.9 |
| 1991 | 4.7°C | 1.0°C | -2.7°C | 12.4°C | -8.6°C | 56 mm | 84% | 2.2 m/s | 4.9 |
| 1990 | 5.4°C | 1.4°C | -2.5°C | 16.8°C | -8.4°C | 43 mm | 82% | 2.4 m/s | 4.1 |
| 1989 | 4.5°C | 0.7°C | -3.0°C | 13.3°C | -7.5°C | 46 mm | 80% | 2.4 m/s | 4.5 |
| 1988 | 4.8°C | 1.5°C | -1.9°C | 8.7°C | -6.4°C | 57 mm | 85% | 2.3 m/s | 3.8 |
| 1987 | 7.8°C | 3.7°C | -0.3°C | 16.8°C | -3.8°C | 35 mm | 80% | 2.3 m/s | 4.3 |
| 1986 | 6.3°C | 2.4°C | -1.4°C | 15.2°C | -10.4°C | 74 mm | 84% | 2.3 m/s | 4 |
| 1985 | 1.9°C | -1.6°C | -5.2°C | 9.4°C | -14.3°C | 40 mm | 84% | 2.5 m/s | 4.9 |
| 1984 | 2.5°C | -0.4°C | -3.4°C | 14.2°C | -10.5°C | 57 mm | 90% | 2.4 m/s | 4.7 |
| 1983 | 5.4°C | 2.1°C | -1.1°C | 14.1°C | -9.8°C | 134 mm | 90% | 2.1 m/s | — |
| 1982 ❄️ | 1.3°C | -2.2°C | -5.7°C | 12.5°C | -14.2°C | 99 mm | 87% | 3.2 m/s | — |
| 1981 | 4.7°C | 1.2°C | -2.4°C | 10.8°C | -11.9°C | 77 mm | 82% | 2.9 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 4.6°C with lows near -2.3°C (mean 1.2°C), based on 45 years of NASA POWER data.
April averages 71 mm of rainfall in Rimouski, about average for rainfall. The wettest on record was 144 mm in 2005.
The hottest April reached 16.8°C in 1987. The coldest dipped to -16.9°C in 2003.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 2.8°C. Daytime highs moved from 3.2°C to 6.2°C and overnight lows from -3.6°C to -0.9°C over the same span.
April is one of the cooler months of the year in Rimouski and about average for rainfall, so plan for around 4.6°C daytime highs and -2.3°C at night.
Not quite — April is the 6th coolest month in Rimouski, averaging 1.2°C.
For April in Rimouski, pack warm layers and a jacket for chilly mornings, with typical highs of 4.6°C and lows of -2.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 83% — quite humid.
Average wind speed in April is 2.6 m/s. The windiest April on record averaged 3.2 m/s (1982).
The wettest April on record was 2005 with 144 mm. On average, April sees 71 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Rimouski behaves each April, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for April specifically, along with year-by-year records and how the month has changed over the decades.
