May is one of the warmer months of the year in Powell River, with average highs near 14.5°C and lows around 6.6°C (mean 10.6°C). It is one of the drier months, averaging 81 mm of rainfall and 75% relative humidity across the period.
May is one of the warmer months of the year in Powell River. Across 45 years of records, the warmest May in Powell River was 2023 — when the month averaged 14.3°C — while the coldest was 1999 at 6.9°C. Typical May days reach 14.5°C with nights near 6.6°C. The long-term trend is warming, about 0.4°C per decade.
May is one of the drier months in Powell River, averaging 81 mm of rainfall. The wettest May on record was 1984 with 150 mm, while the driest was 2018 at 21 mm.
Relative humidity in Powell River during May averages 75%. The most humid May was 2011 at 81%, and the least humid was 1992 at 68%.
May receives about 5.1 kWh/m²/day of solar energy in Powell River. The sunniest May was 2019 at 6.4 kWh/m²/day, and the cloudiest were 1993 and 2022 at 4.3.
Average wind speed in Powell River during May is 0.8 m/s. The windiest Mays were 1988, 2022 and 2025, among others at 0.9 m/s, while the calmest was 2015 at 0.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 9.7°C | 10.7°C | 10.1°C | 11.4°C | 10.7°C | +1°C |
| Avg High | 13.5°C | 14.7°C | 14.0°C | 15.4°C | 14.7°C | +1.2°C |
| Avg Low | 5.8°C | 6.8°C | 6.2°C | 7.4°C | 6.7°C | +0.9°C |
| Avg Rain | 95 mm | 82 mm | 81 mm | 70 mm | 76 mm | -20 mm |
May temperatures in Powell River have risen by about 1.1°C between 1981–1985 and 2021–2025.
May has ranged from a record low of -0.5°C (1999) to a record high of 30.5°C (1993).
Rainfall in May is one of the drier months, averaging 81 mm, with a wettest year of 150 mm.
A good time to visit Powell River
May is a good time to visit Powell River, with days averaging 14.5°C and nights around 6.6°C (mean 10.6°C, warmer than Powell River's yearly average) and higher rainfall. August and July 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 | 14.0°C | 10.3°C | 6.5°C | 21.4°C | 2.7°C | 74 mm | 76% | 0.9 m/s | 5.1 |
| 2024 | 14.5°C | 10.3°C | 6.1°C | 23.3°C | 2.1°C | 78 mm | 77% | 0.8 m/s | 5.4 |
| 2023 🔥 | 18.8°C | 14.3°C | 9.8°C | 28.7°C | 5.6°C | 34 mm | 74% | 0.7 m/s | 6.3 |
| 2022 | 11.3°C | 7.9°C | 4.6°C | 17.9°C | 0.4°C | 133 mm | 81% | 0.9 m/s | 4.3 |
| 2021 | 14.3°C | 10.3°C | 6.3°C | 19.5°C | 3.2°C | 65 mm | 74% | 0.8 m/s | 5.3 |
| 2020 | 15.3°C | 11.2°C | 7.1°C | 22.5°C | 2.1°C | 69 mm | 75% | 0.8 m/s | 5.2 |
| 2019 | 18.4°C | 13.7°C | 9.0°C | 24.0°C | 4.4°C | 32 mm | 73% | 0.7 m/s | 6.4 |
| 2018 | 18.0°C | 13.6°C | 9.2°C | 25.9°C | 3.0°C | 21 mm | 71% | 0.7 m/s | 6.2 |
| 2017 | 15.2°C | 10.9°C | 6.6°C | 24.9°C | -0.1°C | 96 mm | 75% | 0.8 m/s | 5.2 |
| 2016 | 16.6°C | 12.2°C | 7.8°C | 23.1°C | 3.6°C | 51 mm | 73% | 0.8 m/s | 5.8 |
| 2015 | 17.9°C | 13.6°C | 9.3°C | 22.9°C | 1.1°C | 31 mm | 73% | 0.6 m/s | 6.1 |
| 2014 | 15.4°C | 11.8°C | 8.2°C | 22.2°C | 5.4°C | 93 mm | 76% | 0.7 m/s | 5 |
| 2013 | 15.5°C | 11.6°C | 7.7°C | 25.8°C | 1.9°C | 103 mm | 74% | 0.7 m/s | 4.8 |
| 2012 | 13.5°C | 9.5°C | 5.5°C | 21.6°C | 1.3°C | 59 mm | 72% | 0.8 m/s | 5.4 |
| 2011 | 10.8°C | 7.9°C | 5.1°C | 18.4°C | 0.4°C | 101 mm | 81% | 0.8 m/s | 4.5 |
| 2010 | 12.8°C | 9.1°C | 5.5°C | 19.2°C | 0.8°C | 109 mm | 75% | 0.8 m/s | 4.5 |
| 2009 | 13.9°C | 9.8°C | 5.8°C | 21.4°C | 1.3°C | 88 mm | 75% | 0.8 m/s | 5.4 |
| 2008 | 14.2°C | 10.2°C | 6.2°C | 26.5°C | 1.8°C | 70 mm | 77% | 0.8 m/s | 4.9 |
| 2007 | 14.0°C | 9.9°C | 5.8°C | 22.9°C | 1.3°C | 67 mm | 74% | 0.8 m/s | 5.4 |
| 2006 | 15.0°C | 10.7°C | 6.4°C | 24.0°C | 0.8°C | 66 mm | 73% | 0.8 m/s | 5.4 |
| 2005 | 16.2°C | 12.3°C | 8.4°C | 27.6°C | 5.0°C | 118 mm | 76% | 0.8 m/s | 4.8 |
| 2004 | 15.6°C | 12.0°C | 8.4°C | 21.4°C | 5.1°C | 67 mm | 74% | 0.7 m/s | 5.3 |
| 2003 | 13.0°C | 9.5°C | 6.0°C | 19.9°C | 1.6°C | 66 mm | 75% | 0.8 m/s | 4.7 |
| 2002 | 12.9°C | 9.0°C | 5.1°C | 18.7°C | 0.3°C | 54 mm | 75% | 0.8 m/s | 5 |
| 2001 | 12.8°C | 9.0°C | 5.2°C | 24.6°C | 1.6°C | 86 mm | 76% | 0.8 m/s | 5.1 |
| 2000 | 12.3°C | 8.7°C | 5.1°C | 18.8°C | 1.0°C | 128 mm | 78% | 0.8 m/s | 4.8 |
| 1999 ❄️ | 10.1°C | 6.9°C | 3.8°C | 23.6°C | -0.5°C | 100 mm | 78% | 0.8 m/s | 4.8 |
| 1998 | 15.8°C | 11.9°C | 8.0°C | 26.2°C | 3.7°C | 66 mm | 77% | 0.7 m/s | 4.9 |
| 1997 | 16.1°C | 11.9°C | 7.7°C | 23.6°C | 1.6°C | 112 mm | 74% | 0.7 m/s | 5 |
| 1996 | 12.0°C | 8.4°C | 4.9°C | 18.2°C | 0.7°C | 110 mm | 78% | 0.8 m/s | 4.9 |
| 1995 | 17.2°C | 12.4°C | 7.6°C | 23.8°C | 3.6°C | 45 mm | 69% | 0.7 m/s | 5.9 |
| 1994 | 15.0°C | 11.0°C | 7.0°C | 21.7°C | 1.8°C | 61 mm | 74% | 0.8 m/s | 4.8 |
| 1993 | 16.6°C | 12.5°C | 8.4°C | 30.5°C | 2.6°C | 149 mm | 78% | 0.8 m/s | 4.3 |
| 1992 | 16.1°C | 11.9°C | 7.7°C | 24.0°C | 1.9°C | 30 mm | 68% | 0.7 m/s | 5.5 |
| 1991 | 14.1°C | 10.1°C | 6.1°C | 21.6°C | 2.6°C | 64 mm | 78% | 0.8 m/s | 5 |
| 1990 | 13.9°C | 10.2°C | 6.4°C | 20.5°C | 2.7°C | 86 mm | 78% | 0.8 m/s | 4.7 |
| 1989 | 14.6°C | 10.6°C | 6.6°C | 20.9°C | 2.4°C | 89 mm | 74% | 0.7 m/s | 5.3 |
| 1988 | 13.1°C | 9.3°C | 5.5°C | 22.2°C | 1.6°C | 128 mm | 78% | 0.9 m/s | 4.4 |
| 1987 | 14.5°C | 10.3°C | 6.1°C | 23.8°C | 2.7°C | 113 mm | 74% | 0.9 m/s | 5.4 |
| 1986 | 12.9°C | 9.2°C | 5.5°C | 27.0°C | 1.3°C | 147 mm | 78% | 0.8 m/s | 4.7 |
| 1985 | 13.9°C | 9.9°C | 5.9°C | 24.9°C | -0.2°C | 47 mm | 75% | 0.8 m/s | 5 |
| 1984 🌧️ | 10.8°C | 7.5°C | 4.2°C | 18.3°C | 1.3°C | 150 mm | 80% | 0.9 m/s | 4.5 |
| 1983 | 16.4°C | 11.8°C | 7.3°C | 29.3°C | 1.7°C | 30 mm | 73% | 0.8 m/s | — |
| 1982 | 12.2°C | 8.5°C | 4.8°C | 20.1°C | 0.7°C | 36 mm | 74% | 0.8 m/s | — |
| 1981 | 13.3°C | 9.8°C | 6.3°C | 20.3°C | 2.4°C | 121 mm | 78% | 0.7 m/s | — |
Actual recorded May data for each year, 1981–2025 — sourced from NASA POWER.
The average high in May is around 14.5°C with lows near 6.6°C (mean 10.6°C), based on 45 years of NASA POWER data.
May averages 81 mm of rainfall in Powell River, one of the drier months. The wettest on record was 150 mm in 1984.
The hottest May reached 30.5°C in 1993. The coldest dipped to -0.5°C in 1999.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average May temperatures have risen by about 1.1°C. Daytime highs moved from 13.3°C to 14.6°C and overnight lows from 5.7°C to 6.7°C over the same span.
May is one of the warmer months of the year in Powell River and one of the drier months, so plan for around 14.5°C daytime highs and 6.6°C at night.
Not quite — May is the 8th coolest month in Powell River, averaging 10.6°C.
For May in Powell River, pack warm layers and a jacket for chilly mornings, with typical highs of 14.5°C and lows of 6.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in May averages 75% — quite humid.
Average wind speed in May is 0.8 m/s. The windiest May on record averaged 0.9 m/s (1984).
The wettest May on record was 1984 with 150 mm. On average, May sees 81 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 Powell River 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.
