October is one of the warmer months of the year in Sault Ste. Marie, with average highs near 11°C and lows around 3.9°C (mean 7.5°C). It is a relatively wet time of year, averaging 103 mm of rainfall and 84% relative humidity across the period.
October is one of the warmer months of the year in Sault Ste. Marie. Across 45 years of records, the warmest October in Sault Ste. Marie was 2021 — when the month averaged 12.1°C — while the coldest were 1993 and 2002 at 4.6°C. Typical October days reach 11°C with nights near 3.9°C. The long-term trend is warming, about 0.7°C per decade.
October is a relatively wet time of year in Sault Ste. Marie, averaging 103 mm of rainfall. The wettest October on record was 2014 with 194 mm, while the driest was 2000 at 43 mm.
Relative humidity in Sault Ste. Marie during October averages 84%. The most humid October was 2014 at 89%, and the least humid was 2024 at 74%.
October receives about 2.2 kWh/m²/day of solar energy in Sault Ste. Marie. The sunniest October was 2024 at 2.8 kWh/m²/day, and the cloudiest was 1984 at 1.6.
Average wind speed in Sault Ste. Marie during October is 1.8 m/s. The windiest October was 2012 at 2.2 m/s, while the calmest was 1986 at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 6.3°C | 6.8°C | 7.4°C | 8.0°C | 9.3°C | +3°C |
| Avg High | 10.0°C | 10.5°C | 10.8°C | 11.4°C | 12.8°C | +2.8°C |
| Avg Low | 2.5°C | 3.1°C | 4.0°C | 4.6°C | 5.7°C | +3.2°C |
| Avg Rain | 95 mm | 94 mm | 102 mm | 129 mm | 89 mm | -6 mm |
October temperatures in Sault Ste. Marie have risen by about 3.5°C between 1981–1985 and 2021–2025.
October has ranged from a record low of -6.1°C (1988) to a record high of 25.1°C (2023).
Rainfall in October is a relatively wet time of year, averaging 103 mm, with a wettest year of 194 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.6°C per decade while lows rose 0.8°C per decade, narrowing the gap between day and night.
A good time to visit Sault Ste. Marie
October is a good time to visit Sault Ste. Marie, with days averaging 11°C and nights around 3.9°C (mean 7.5°C, warmer than Sault Ste. Marie's yearly average) and higher rainfall. August and July are marginally more temperate, but October still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 14.1°C | 10.5°C | 6.8°C | 25.1°C | 1.8°C | 68 mm | 82% | 1.7 m/s | 2.7 |
| 2024 | 15.0°C | 10.8°C | 6.5°C | 21.0°C | 1.4°C | 53 mm | 74% | 2.1 m/s | 2.8 |
| 2023 | 12.1°C | 9.1°C | 6.0°C | 25.1°C | -2.6°C | 112 mm | 85% | 1.7 m/s | 2.2 |
| 2022 | 12.0°C | 8.3°C | 4.5°C | 20.4°C | 0.9°C | 87 mm | 84% | 1.9 m/s | 2.4 |
| 2021 🔥 | 15.4°C | 12.1°C | 8.7°C | 22.2°C | 1.4°C | 75 mm | 87% | 1.5 m/s | 2.3 |
| 2020 | 8.3°C | 5.0°C | 1.6°C | 16.5°C | -5.4°C | 141 mm | 85% | 2 m/s | 2 |
| 2019 | 10.7°C | 7.6°C | 4.4°C | 18.2°C | -1.3°C | 166 mm | 86% | 2.1 m/s | 2.3 |
| 2018 | 9.0°C | 5.6°C | 2.2°C | 19.7°C | -2.1°C | 177 mm | 87% | 2 m/s | 1.9 |
| 2017 | 13.7°C | 10.2°C | 6.7°C | 22.3°C | -1.5°C | 172 mm | 84% | 1.9 m/s | 2.5 |
| 2016 | 13.1°C | 9.2°C | 5.4°C | 20.4°C | -2.3°C | 84 mm | 84% | 1.9 m/s | 2.1 |
| 2015 | 11.0°C | 7.5°C | 4.1°C | 19.0°C | -1.6°C | 85 mm | 83% | 2 m/s | 2.3 |
| 2014 🌧️ | 9.6°C | 6.6°C | 3.6°C | 15.4°C | -4.2°C | 194 mm | 89% | 1.9 m/s | 1.9 |
| 2013 | 11.2°C | 8.0°C | 4.8°C | 20.5°C | -3.4°C | 105 mm | 87% | 1.8 m/s | 2.2 |
| 2012 | 11.2°C | 7.8°C | 4.5°C | 20.3°C | -0.3°C | 143 mm | 82% | 2.2 m/s | 2.1 |
| 2011 | 12.9°C | 9.4°C | 5.8°C | 22.0°C | 0.0°C | 90 mm | 83% | 1.8 m/s | 2.6 |
| 2010 | 12.0°C | 8.4°C | 4.7°C | 19.1°C | -0.8°C | 69 mm | 81% | 1.9 m/s | 2.7 |
| 2009 | 8.6°C | 5.7°C | 2.9°C | 14.2°C | -1.2°C | 159 mm | 86% | 1.9 m/s | 1.8 |
| 2008 | 11.0°C | 7.4°C | 3.9°C | 18.9°C | -3.3°C | 56 mm | 82% | 2 m/s | 2.5 |
| 2007 | 13.9°C | 10.4°C | 7.0°C | 23.4°C | -0.4°C | 126 mm | 85% | 1.8 m/s | 2 |
| 2006 | 9.2°C | 5.9°C | 2.7°C | 20.2°C | -1.6°C | 90 mm | 82% | 1.9 m/s | 2.2 |
| 2005 | 13.4°C | 9.7°C | 6.0°C | 24.2°C | -0.5°C | 68 mm | 83% | 1.7 m/s | 2.4 |
| 2004 | 11.8°C | 8.4°C | 5.1°C | 19.9°C | -0.7°C | 136 mm | 84% | 1.9 m/s | 2.2 |
| 2003 | 9.5°C | 6.1°C | 2.7°C | 19.7°C | -2.8°C | 70 mm | 87% | 1.5 m/s | 2.2 |
| 2002 | 7.8°C | 4.6°C | 1.4°C | 21.7°C | -3.3°C | 96 mm | 84% | 1.7 m/s | 2 |
| 2001 | 10.5°C | 7.0°C | 3.6°C | 17.5°C | -2.9°C | 174 mm | 86% | 1.9 m/s | 2.2 |
| 2000 | 12.6°C | 8.6°C | 4.5°C | 20.7°C | -2.7°C | 43 mm | 81% | 1.6 m/s | 2.2 |
| 1999 | 9.6°C | 5.9°C | 2.2°C | 15.1°C | -2.7°C | 88 mm | 82% | 1.9 m/s | 2 |
| 1998 | 13.3°C | 9.3°C | 5.3°C | 19.7°C | -0.3°C | 74 mm | 81% | 1.9 m/s | 2.4 |
| 1997 | 11.0°C | 7.4°C | 3.8°C | 20.6°C | -3.3°C | 50 mm | 84% | 1.8 m/s | 2.2 |
| 1996 | 10.3°C | 6.6°C | 2.9°C | 17.6°C | -3.9°C | 109 mm | 86% | 1.9 m/s | 2.2 |
| 1995 | 10.7°C | 7.5°C | 4.3°C | 20.3°C | -2.6°C | 148 mm | 86% | 1.8 m/s | 1.8 |
| 1994 | 12.3°C | 8.6°C | 4.9°C | 17.5°C | 0.6°C | 64 mm | 81% | 1.7 m/s | 2.4 |
| 1993 ❄️ | 8.0°C | 4.6°C | 1.1°C | 14.8°C | -3.7°C | 123 mm | 85% | 1.8 m/s | 2 |
| 1992 | 9.5°C | 5.8°C | 2.2°C | 20.0°C | -3.8°C | 74 mm | 84% | 1.5 m/s | 1.9 |
| 1991 | 10.2°C | 6.4°C | 2.7°C | 16.9°C | -2.4°C | 106 mm | 83% | 1.8 m/s | 2.1 |
| 1990 | 9.7°C | 5.9°C | 2.0°C | 15.3°C | -2.8°C | 102 mm | 84% | 1.7 m/s | 2.1 |
| 1989 | 10.9°C | 7.0°C | 3.1°C | 20.5°C | -4.0°C | 73 mm | 81% | 1.6 m/s | 2.4 |
| 1988 | 7.9°C | 4.7°C | 1.6°C | 16.2°C | -6.1°C | 123 mm | 84% | 1.7 m/s | 1.8 |
| 1987 | 8.5°C | 4.9°C | 1.3°C | 14.9°C | -2.8°C | 104 mm | 82% | 1.6 m/s | 2.2 |
| 1986 | 10.1°C | 6.0°C | 1.9°C | 17.1°C | -4.2°C | 70 mm | 84% | 1.4 m/s | 2.1 |
| 1985 | 10.4°C | 6.6°C | 2.8°C | 13.8°C | -3.5°C | 70 mm | 84% | 1.7 m/s | 2.1 |
| 1984 | 12.0°C | 7.8°C | 3.7°C | 17.4°C | -5.2°C | 92 mm | 85% | 1.6 m/s | 1.6 |
| 1983 | 10.4°C | 6.6°C | 2.7°C | 19.9°C | -3.5°C | 118 mm | 84% | 1.7 m/s | — |
| 1982 | 11.2°C | 7.6°C | 4.1°C | 19.1°C | -3.3°C | 93 mm | 85% | 1.5 m/s | — |
| 1981 | 8.5°C | 5.1°C | 1.7°C | 13.1°C | -3.5°C | 114 mm | 84% | 1.7 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 11°C with lows near 3.9°C (mean 7.5°C), based on 45 years of NASA POWER data.
October averages 103 mm of rainfall in Sault Ste. Marie, a relatively wet time of year. The wettest on record was 194 mm in 2014.
The hottest October reached 25.1°C in 2023. The coldest dipped to -6.1°C in 1988.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 3.5°C. Daytime highs moved from 10.5°C to 13.7°C and overnight lows from 3°C to 6.5°C over the same span.
October is one of the warmer months of the year in Sault Ste. Marie and a relatively wet time of year, so plan for around 11°C daytime highs and 3.9°C at night.
Not quite — October is the 7th coolest month in Sault Ste. Marie, averaging 7.5°C.
For October in Sault Ste. Marie, pack warm layers and a jacket for chilly mornings, with typical highs of 11°C and lows of 3.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 84% — quite humid.
Average wind speed in October is 1.8 m/s. The windiest October on record averaged 2.2 m/s (2012).
The wettest October on record was 2014 with 194 mm. On average, October sees 103 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 Sault Ste. Marie behaves each October, 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 October specifically, along with year-by-year records and how the month has changed over the decades.
