May is one of the warmer months of the year in Rivière-du-Loup, with average highs near 13.3°C and lows around 3.6°C (mean 8.5°C). It is about average for rainfall, averaging 82 mm of rainfall and 79% relative humidity across the period.
May is one of the warmer months of the year in Rivière-du-Loup. Across 45 years of records, the warmest May in Rivière-du-Loup was 1999 — when the month averaged 11.3°C — while the coldest were 1985 and 1997 at 6.1°C. Typical May days reach 13.3°C with nights near 3.6°C. The long-term trend is warming, about 0.5°C per decade.
May is about average for rainfall in Rivière-du-Loup, averaging 82 mm of rainfall. The wettest May on record was 1983 with 171 mm, while the driest was 2024 at 26 mm.
Relative humidity in Rivière-du-Loup during May averages 79%. The most humid May was 1983 at 87%, and the least humid was 2023 at 71%.
May receives about 5.2 kWh/m²/day of solar energy in Rivière-du-Loup. The sunniest May was 2018 at 6.2 kWh/m²/day, and the cloudiest were 1984 and 1989 at 4.3.
Average wind speed in Rivière-du-Loup during May is 1.5 m/s. The windiest May was 2023 at 1.9 m/s, while the calmest was 2003 at 1.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 7.6°C | 8.1°C | 8.1°C | 9.2°C | 9.5°C | +1.9°C |
| Avg High | 12.6°C | 13.2°C | 12.8°C | 13.8°C | 14.4°C | +1.8°C |
| Avg Low | 2.7°C | 3.0°C | 3.4°C | 4.6°C | 4.7°C | +2°C |
| Avg Rain | 96 mm | 67 mm | 81 mm | 102 mm | 58 mm | -38 mm |
May temperatures in Rivière-du-Loup have risen by about 3°C between 1981–1985 and 2021–2025.
May has ranged from a record low of -5.1°C (2019) to a record high of 28.3°C (2023).
Rainfall in May is about average for rainfall, averaging 82 mm, with a wettest year of 171 mm.
A good time to visit Rivière-du-Loup
May is a good time to visit Rivière-du-Loup, with days averaging 13.3°C and nights around 3.6°C (mean 8.5°C, warmer than Rivière-du-Loup's yearly average) and higher rainfall. July and August are marginally more temperate, but May still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 14.1°C | 9.4°C | 4.7°C | 24.5°C | -2.5°C | 88 mm | 79% | 1.7 m/s | 4.9 |
| 2024 | 15.9°C | 11.2°C | 6.5°C | 24.4°C | -0.8°C | 26 mm | 76% | 1.4 m/s | 5.1 |
| 2023 | 14.3°C | 9.5°C | 4.7°C | 28.3°C | -0.1°C | 35 mm | 71% | 1.9 m/s | 5.5 |
| 2022 | 15.3°C | 10.1°C | 4.9°C | 22.7°C | -2.7°C | 97 mm | 75% | 1.4 m/s | 5.9 |
| 2021 | 13.8°C | 8.9°C | 4.0°C | 23.3°C | -1.9°C | 51 mm | 74% | 1.5 m/s | 5.7 |
| 2020 | 12.9°C | 8.0°C | 3.2°C | 26.9°C | -2.9°C | 50 mm | 77% | 1.7 m/s | 5.8 |
| 2019 | 11.6°C | 7.0°C | 2.5°C | 18.5°C | -5.1°C | 74 mm | 80% | 1.5 m/s | 5.3 |
| 2018 | 13.2°C | 7.9°C | 2.6°C | 25.1°C | -3.4°C | 71 mm | 77% | 1.6 m/s | 6.2 |
| 2017 | 13.1°C | 9.0°C | 4.8°C | 23.3°C | -0.8°C | 126 mm | 84% | 1.5 m/s | 4.5 |
| 2016 | 14.6°C | 9.7°C | 4.7°C | 22.6°C | -0.3°C | 75 mm | 81% | 1.5 m/s | 5.1 |
| 2015 | 15.2°C | 10.2°C | 5.3°C | 21.7°C | 0.8°C | 86 mm | 79% | 1.7 m/s | 5.3 |
| 2014 | 13.1°C | 8.9°C | 4.7°C | 21.7°C | 0.2°C | 74 mm | 84% | 1.5 m/s | 4.7 |
| 2013 | 14.8°C | 10.1°C | 5.4°C | 23.8°C | 0.3°C | 155 mm | 81% | 1.4 m/s | 4.9 |
| 2012 | 15.1°C | 10.3°C | 5.6°C | 23.6°C | 0.2°C | 85 mm | 80% | 1.5 m/s | 5.2 |
| 2011 | 12.3°C | 8.4°C | 4.4°C | 21.1°C | 0.6°C | 148 mm | 86% | 1.6 m/s | 4.4 |
| 2010 | 15.2°C | 10.4°C | 5.7°C | 25.4°C | -1.0°C | 121 mm | 78% | 1.6 m/s | 6 |
| 2009 | 12.7°C | 8.1°C | 3.6°C | 21.2°C | -1.8°C | 78 mm | 78% | 1.6 m/s | 5.3 |
| 2008 | 12.7°C | 8.6°C | 4.4°C | 17.6°C | -2.4°C | 47 mm | 79% | 1.5 m/s | 5.7 |
| 2007 | 13.5°C | 8.7°C | 3.8°C | 26.0°C | -1.7°C | 47 mm | 77% | 1.7 m/s | 5.5 |
| 2006 | 14.3°C | 9.6°C | 5.0°C | 23.9°C | -1.7°C | 86 mm | 83% | 1.3 m/s | 4.4 |
| 2005 | 11.1°C | 7.3°C | 3.6°C | 19.6°C | -1.6°C | 106 mm | 85% | 1.5 m/s | 4.5 |
| 2004 | 11.7°C | 6.7°C | 1.8°C | 19.5°C | -4.1°C | 134 mm | 82% | 1.5 m/s | 5 |
| 2003 | 12.5°C | 7.4°C | 2.3°C | 24.3°C | -4.0°C | 65 mm | 78% | 1.1 m/s | 4.9 |
| 2002 | 11.3°C | 6.6°C | 1.8°C | 20.4°C | -3.8°C | 79 mm | 79% | 1.6 m/s | 4.8 |
| 2001 | 16.4°C | 10.8°C | 5.2°C | 23.0°C | -0.5°C | 63 mm | 78% | 1.2 m/s | 5.6 |
| 2000 | 11.5°C | 6.9°C | 2.3°C | 19.5°C | -2.8°C | 100 mm | 82% | 1.4 m/s | 4.9 |
| 1999 🔥 | 17.0°C | 11.3°C | 5.6°C | 24.6°C | -2.5°C | 44 mm | 76% | 1.4 m/s | 6.1 |
| 1998 | 16.2°C | 11.0°C | 5.7°C | 22.9°C | 1.0°C | 46 mm | 76% | 1.5 m/s | 5.3 |
| 1997 | 10.5°C | 6.1°C | 1.6°C | 19.0°C | -4.5°C | 91 mm | 80% | 1.6 m/s | 4.8 |
| 1996 | 11.4°C | 6.6°C | 1.8°C | 18.7°C | -4.1°C | 56 mm | 75% | 1.5 m/s | 5.3 |
| 1995 | 12.7°C | 7.7°C | 2.8°C | 19.2°C | -3.7°C | 54 mm | 79% | 1.3 m/s | 4.7 |
| 1994 | 12.0°C | 6.8°C | 1.7°C | 21.3°C | -3.0°C | 77 mm | 78% | 1.4 m/s | 4.9 |
| 1993 | 13.0°C | 8.4°C | 3.7°C | 19.0°C | -1.0°C | 92 mm | 78% | 1.4 m/s | 4.6 |
| 1992 | 13.7°C | 8.0°C | 2.3°C | 26.1°C | -3.8°C | 43 mm | 74% | 1.5 m/s | 6.1 |
| 1991 | 13.2°C | 7.9°C | 2.6°C | 22.1°C | -2.6°C | 81 mm | 78% | 1.5 m/s | 5.3 |
| 1990 | 11.8°C | 6.9°C | 2.0°C | 20.7°C | -1.9°C | 87 mm | 75% | 1.5 m/s | 5.1 |
| 1989 | 14.8°C | 10.1°C | 5.3°C | 22.6°C | -0.9°C | 121 mm | 85% | 1.3 m/s | 4.3 |
| 1988 | 13.9°C | 8.8°C | 3.6°C | 20.6°C | -2.3°C | 53 mm | 77% | 1.5 m/s | 5.1 |
| 1987 | 13.2°C | 7.6°C | 2.1°C | 20.4°C | -4.2°C | 65 mm | 73% | 1.5 m/s | 5.4 |
| 1986 | 13.5°C | 8.4°C | 3.4°C | 21.6°C | -4.8°C | 97 mm | 78% | 1.5 m/s | 5.3 |
| 1985 ❄️ | 11.2°C | 6.1°C | 1.0°C | 17.9°C | -5.0°C | 84 mm | 79% | 1.4 m/s | 5.4 |
| 1984 | 10.7°C | 6.3°C | 2.0°C | 18.9°C | -2.9°C | 107 mm | 82% | 1.5 m/s | 4.3 |
| 1983 🌧️ | 10.1°C | 6.2°C | 2.2°C | 16.7°C | -2.2°C | 171 mm | 87% | 1.4 m/s | — |
| 1982 | 13.3°C | 7.7°C | 2.2°C | 23.8°C | -3.5°C | 51 mm | 80% | 1.3 m/s | — |
| 1981 | 12.6°C | 7.6°C | 2.7°C | 19.5°C | -3.4°C | 114 mm | 82% | 1.4 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 13.3°C with lows near 3.6°C (mean 8.5°C), based on 45 years of NASA POWER data.
May averages 82 mm of rainfall in Rivière-du-Loup, about average for rainfall. The wettest on record was 171 mm in 1983.
The hottest May reached 28.3°C in 2023. The coldest dipped to -5.1°C in 2019.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 3°C. Daytime highs moved from 11.6°C to 14.7°C and overnight lows from 2°C to 5°C over the same span.
May is one of the warmer months of the year in Rivière-du-Loup and about average for rainfall, so plan for around 13.3°C daytime highs and 3.6°C at night.
Not quite — May is the 8th coolest month in Rivière-du-Loup, averaging 8.5°C.
For May in Rivière-du-Loup, pack warm layers and a jacket for chilly mornings, with typical highs of 13.3°C and lows of 3.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 79% — quite humid.
Average wind speed in May is 1.5 m/s. The windiest May on record averaged 1.9 m/s (2023).
The wettest May on record was 1983 with 171 mm. On average, May sees 82 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 Rivière-du-Loup behaves each May, 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 May specifically, along with year-by-year records and how the month has changed over the decades.
