October is one of the warmer months of the year in Charlottetown, with average highs near 12.9°C and lows around 7.8°C (mean 10.4°C). It is a relatively wet time of year, averaging 98 mm of rainfall and 80% relative humidity across the period.
October is one of the warmer months of the year in Charlottetown. Across 45 years of records, the warmest October in Charlottetown was 2017 — when the month averaged 12.8°C — while the coldest was 2009 at 7.9°C. Typical October days reach 12.9°C with nights near 7.8°C. The long-term trend is warming, about 0.5°C per decade.
October is a relatively wet time of year in Charlottetown, averaging 98 mm of rainfall. The wettest October on record was 2018 with 221 mm, while the driest was 1997 at 29 mm.
Relative humidity in Charlottetown during October averages 80%. The most humid October was 2005 at 86%, and the least humid was 1993 at 73%.
October receives about 2.3 kWh/m²/day of solar energy in Charlottetown. The sunniest Octobers were 2001 and 2022 at 2.8 kWh/m²/day, and the cloudiest was 1990 at 1.8.
Average wind speed in Charlottetown during October is 3.7 m/s. The windiest October was 1999 at 4.3 m/s, while the calmest was 2022 at 2.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 9.4°C | 9.8°C | 10.3°C | 10.7°C | 12.0°C | +2.6°C |
| Avg High | 12.1°C | 12.4°C | 12.7°C | 13.2°C | 14.6°C | +2.5°C |
| Avg Low | 6.8°C | 7.2°C | 8.0°C | 8.2°C | 9.4°C | +2.6°C |
| Avg Rain | 83 mm | 81 mm | 123 mm | 114 mm | 79 mm | -4 mm |
October temperatures in Charlottetown have risen by about 2.6°C between 1981–1985 and 2021–2025.
October has ranged from a record low of 0°C (2018) to a record high of 24.7°C (2025).
Rainfall in October is a relatively wet time of year, averaging 98 mm, with a wettest year of 221 mm.
A good time to visit Charlottetown
October is a good time to visit Charlottetown, with days averaging 12.9°C and nights around 7.8°C (mean 10.4°C, warmer than Charlottetown'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 | 14.9°C | 12.4°C | 9.9°C | 24.7°C | 7.2°C | 82 mm | 78% | 3.4 m/s | 2.5 |
| 2024 | 13.7°C | 11.2°C | 8.7°C | 19.4°C | 2.5°C | 57 mm | 80% | 3.7 m/s | 2.4 |
| 2023 | 15.0°C | 12.4°C | 9.8°C | 21.6°C | 2.1°C | 131 mm | 84% | 3.2 m/s | 2.3 |
| 2022 | 15.5°C | 12.6°C | 9.7°C | 19.2°C | 5.6°C | 74 mm | 84% | 2.9 m/s | 2.8 |
| 2021 | 14.9°C | 12.5°C | 10.2°C | 19.4°C | 7.7°C | 64 mm | 82% | 3.3 m/s | 2.4 |
| 2020 | 13.5°C | 10.7°C | 7.9°C | 20.2°C | 0.2°C | 66 mm | 78% | 3.7 m/s | 2.3 |
| 2019 | 12.4°C | 10.3°C | 8.1°C | 17.4°C | 4.9°C | 84 mm | 82% | 3.5 m/s | 2.2 |
| 2018 🌧️ | 11.0°C | 8.4°C | 5.8°C | 19.9°C | 0.0°C | 221 mm | 83% | 3.8 m/s | 2 |
| 2017 🔥 | 15.7°C | 12.8°C | 9.9°C | 21.3°C | 4.6°C | 46 mm | 79% | 3.8 m/s | 2.7 |
| 2016 | 13.4°C | 10.8°C | 8.2°C | 20.1°C | 2.3°C | 150 mm | 83% | 3.6 m/s | 2.4 |
| 2015 | 12.4°C | 9.7°C | 7.0°C | 20.3°C | 1.9°C | 105 mm | 79% | 4 m/s | 2.4 |
| 2014 | 14.7°C | 12.2°C | 9.7°C | 18.7°C | 5.8°C | 95 mm | 83% | 3.5 m/s | 2.4 |
| 2013 | 13.1°C | 10.6°C | 8.0°C | 20.0°C | 1.4°C | 68 mm | 79% | 3.4 m/s | 2.7 |
| 2012 | 13.5°C | 11.2°C | 8.9°C | 18.9°C | 4.4°C | 69 mm | 84% | 3.7 m/s | 2.2 |
| 2011 | 13.1°C | 10.9°C | 8.7°C | 21.0°C | 2.7°C | 201 mm | 85% | 3.9 m/s | 2 |
| 2010 | 12.5°C | 10.2°C | 8.0°C | 23.6°C | 2.7°C | 98 mm | 81% | 4 m/s | 2.3 |
| 2009 ❄️ | 9.8°C | 7.9°C | 6.0°C | 17.5°C | 2.2°C | 190 mm | 82% | 4.1 m/s | 2 |
| 2008 | 12.0°C | 9.9°C | 7.9°C | 17.2°C | 4.7°C | 56 mm | 83% | 3.9 m/s | 2.5 |
| 2007 | 13.5°C | 11.0°C | 8.5°C | 19.4°C | 2.5°C | 44 mm | 81% | 3.6 m/s | 2.4 |
| 2006 | 12.4°C | 10.2°C | 8.1°C | 18.4°C | 3.2°C | 169 mm | 81% | 3.8 m/s | 2.3 |
| 2005 | 13.4°C | 11.3°C | 9.2°C | 21.4°C | 4.3°C | 197 mm | 86% | 4 m/s | 2 |
| 2004 | 13.4°C | 11.1°C | 8.7°C | 18.3°C | 3.7°C | 91 mm | 82% | 3.7 m/s | 2.1 |
| 2003 | 13.7°C | 11.0°C | 8.3°C | 20.9°C | 3.9°C | 143 mm | 80% | 3.7 m/s | 2.4 |
| 2002 | 11.3°C | 8.8°C | 6.4°C | 21.5°C | 2.0°C | 114 mm | 78% | 4.2 m/s | 2.3 |
| 2001 | 14.9°C | 12.0°C | 9.0°C | 22.1°C | 3.4°C | 39 mm | 76% | 3.7 m/s | 2.8 |
| 2000 | 12.6°C | 10.1°C | 7.6°C | 18.2°C | 4.2°C | 185 mm | 82% | 4 m/s | 2.2 |
| 1999 | 11.7°C | 8.9°C | 6.2°C | 18.3°C | 2.3°C | 98 mm | 78% | 4.3 m/s | 2 |
| 1998 | 11.6°C | 9.6°C | 7.5°C | 19.3°C | 2.5°C | 108 mm | 81% | 4.2 m/s | 2.1 |
| 1997 | 11.2°C | 8.9°C | 6.6°C | 17.0°C | 2.3°C | 29 mm | 77% | 3.7 m/s | 2.2 |
| 1996 | 10.9°C | 8.4°C | 5.9°C | 17.9°C | 0.7°C | 109 mm | 82% | 3.9 m/s | 2.2 |
| 1995 | 14.8°C | 12.0°C | 9.3°C | 20.7°C | 3.1°C | 65 mm | 80% | 3.4 m/s | 2.2 |
| 1994 | 13.0°C | 10.4°C | 7.8°C | 20.0°C | 4.9°C | 30 mm | 79% | 3.6 m/s | 2.2 |
| 1993 | 11.7°C | 8.5°C | 5.3°C | 19.0°C | 1.6°C | 83 mm | 73% | 4.1 m/s | 2.1 |
| 1992 | 11.8°C | 9.4°C | 7.0°C | 17.7°C | 1.5°C | 77 mm | 77% | 3.8 m/s | 2 |
| 1991 | 13.3°C | 10.8°C | 8.3°C | 19.0°C | 3.9°C | 95 mm | 84% | 3.9 m/s | 1.9 |
| 1990 | 13.9°C | 11.2°C | 8.5°C | 20.5°C | 1.9°C | 113 mm | 80% | 4.1 m/s | 1.8 |
| 1989 | 12.6°C | 9.7°C | 6.7°C | 18.2°C | 3.0°C | 46 mm | 78% | 3.6 m/s | 2.4 |
| 1988 | 11.2°C | 8.6°C | 5.9°C | 21.0°C | 1.2°C | 168 mm | 81% | 4 m/s | 2.1 |
| 1987 | 12.9°C | 10.1°C | 7.2°C | 19.8°C | 2.7°C | 104 mm | 82% | 3.3 m/s | 2.4 |
| 1986 | 11.1°C | 8.5°C | 5.8°C | 16.3°C | 1.6°C | 55 mm | 79% | 3.7 m/s | 2.2 |
| 1985 | 12.1°C | 9.6°C | 7.1°C | 20.7°C | 1.0°C | 67 mm | 75% | 4.2 m/s | 2.2 |
| 1984 | 11.7°C | 9.0°C | 6.4°C | 17.2°C | 1.6°C | 56 mm | 80% | 3.5 m/s | 2.1 |
| 1983 | 12.8°C | 10.3°C | 7.9°C | 21.0°C | 1.2°C | 47 mm | 78% | 3.9 m/s | — |
| 1982 | 12.2°C | 9.7°C | 7.2°C | 18.9°C | 3.5°C | 54 mm | 80% | 3.6 m/s | — |
| 1981 | 12.2°C | 9.5°C | 6.8°C | 17.3°C | 2.3°C | 149 mm | 82% | 3.8 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 12.9°C with lows near 7.8°C (mean 10.4°C), based on 45 years of NASA POWER data.
October averages 98 mm of rainfall in Charlottetown, a relatively wet time of year. The wettest on record was 221 mm in 2018.
The hottest October reached 24.7°C in 2025. The coldest dipped to 0°C in 2018.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 2.6°C. Daytime highs moved from 12.2°C to 14.8°C and overnight lows from 7.1°C to 9.7°C over the same span.
October is one of the warmer months of the year in Charlottetown and a relatively wet time of year, so plan for around 12.9°C daytime highs and 7.8°C at night.
Not quite — October is the 8th coolest month in Charlottetown, averaging 10.4°C.
For October in Charlottetown, pack warm layers and a jacket for chilly mornings, with typical highs of 12.9°C and lows of 7.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 80% — quite humid.
Average wind speed in October is 3.7 m/s. The windiest October on record averaged 4.3 m/s (1999).
The wettest October on record was 2018 with 221 mm. On average, October sees 98 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 Charlottetown 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.
