September is one of the warmer months of the year in Vancouver, with average highs near 24.3°C and lows around 10.3°C (mean 17.3°C). It is one of the drier months, averaging 57 mm of rainfall and 68% relative humidity across the period.
September is one of the warmer months of the year in Vancouver. Across 45 years of records, the warmest September in Vancouver was 2022 — when the month averaged 19.6°C — while the coldest was 1985 at 13.9°C. Typical September days reach 24.3°C with nights near 10.3°C. The long-term trend is warming, about 0.4°C per decade.
September is one of the drier months in Vancouver, averaging 57 mm of rainfall. The wettest September on record was 2013 with 230 mm, while the driest were 1993 and 2012 at 2 mm.
Relative humidity in Vancouver during September averages 68%. The most humid September was 2004 at 81%, and the least humid was 1989 at 57%.
September receives about 4.3 kWh/m²/day of solar energy in Vancouver. The sunniest September was 1999 at 5.1 kWh/m²/day, and the cloudiest was 2013 at 3.4.
Average wind speed in Vancouver during September is 0.7 m/s. The windiest Septembers were 2014, 2020 and 2021, among others at 0.8 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 16.2°C | 17.8°C | 17.1°C | 17.4°C | 18.4°C | +2.2°C |
| Avg High | 23.1°C | 25.1°C | 24.2°C | 24.0°C | 25.4°C | +2.3°C |
| Avg Low | 9.2°C | 10.5°C | 10.0°C | 10.8°C | 11.5°C | +2.3°C |
| Avg Rain | 68 mm | 50 mm | 44 mm | 69 mm | 57 mm | -11 mm |
September temperatures in Vancouver have risen by about 2.9°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 1.5°C (1983) to a record high of 38.5°C (2017).
Rainfall in September is one of the drier months, averaging 57 mm, with a wettest year of 230 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.3°C per decade while lows rose 0.5°C per decade, narrowing the gap between day and night.
One of the best times to visit Vancouver
September is one of the best times to visit Vancouver. Expect days averaging 24.3°C and nights around 10.3°C (mean 17.3°C) — warmer than Vancouver's yearly average — with moderate rainfall (57 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 25.4°C | 18.5°C | 11.6°C | 35.8°C | 6.9°C | 46 mm | 71% | 0.7 m/s | 4.2 |
| 2024 | 25.3°C | 18.4°C | 11.4°C | 37.1°C | 5.7°C | 34 mm | 68% | 0.7 m/s | 4.1 |
| 2023 | 23.8°C | 17.3°C | 10.7°C | 34.4°C | 7.1°C | 64 mm | 70% | 0.7 m/s | 4.1 |
| 2022 🔥 | 27.2°C | 19.6°C | 12.1°C | 35.0°C | 9.1°C | 14 mm | 62% | 0.7 m/s | 4.3 |
| 2021 | 24.7°C | 17.6°C | 10.6°C | 34.1°C | 7.4°C | 105 mm | 66% | 0.8 m/s | 4.4 |
| 2020 | 25.9°C | 19.1°C | 12.4°C | 36.8°C | 9.9°C | 77 mm | 64% | 0.8 m/s | 3.9 |
| 2019 | 21.4°C | 16.1°C | 10.8°C | 35.3°C | 2.1°C | 116 mm | 79% | 0.7 m/s | 3.6 |
| 2018 | 23.6°C | 16.7°C | 9.8°C | 32.7°C | 6.3°C | 27 mm | 67% | 0.7 m/s | 4.4 |
| 2017 | 24.9°C | 18.4°C | 12.0°C | 38.5°C | 6.1°C | 91 mm | 67% | 0.7 m/s | 4 |
| 2016 | 22.8°C | 16.2°C | 9.6°C | 32.6°C | 6.8°C | 46 mm | 70% | 0.7 m/s | 4.4 |
| 2015 | 23.2°C | 16.3°C | 9.5°C | 34.1°C | 5.5°C | 31 mm | 68% | 0.7 m/s | 4.4 |
| 2014 | 25.8°C | 18.9°C | 12.0°C | 33.5°C | 8.2°C | 39 mm | 61% | 0.8 m/s | 4.5 |
| 2013 🌧️ | 22.4°C | 16.9°C | 11.4°C | 35.6°C | 6.3°C | 230 mm | 79% | 0.8 m/s | 3.4 |
| 2012 | 26.6°C | 18.4°C | 10.2°C | 33.2°C | 6.7°C | 2 mm | 61% | 0.7 m/s | 4.9 |
| 2011 | 26.9°C | 19.4°C | 11.8°C | 36.5°C | 7.4°C | 30 mm | 65% | 0.8 m/s | 4.4 |
| 2010 | 22.3°C | 16.5°C | 10.7°C | 31.0°C | 7.1°C | 74 mm | 78% | 0.7 m/s | 3.7 |
| 2009 | 25.0°C | 17.9°C | 10.9°C | 34.0°C | 6.1°C | 48 mm | 66% | 0.8 m/s | 4.5 |
| 2008 | 25.5°C | 17.7°C | 9.9°C | 35.1°C | 3.9°C | 12 mm | 64% | 0.7 m/s | 4.7 |
| 2007 | 23.0°C | 16.3°C | 9.5°C | 32.5°C | 6.3°C | 51 mm | 69% | 0.7 m/s | 4.3 |
| 2006 | 25.4°C | 17.7°C | 9.9°C | 35.6°C | 6.7°C | 32 mm | 63% | 0.7 m/s | 4.8 |
| 2005 | 22.6°C | 15.8°C | 9.0°C | 30.6°C | 4.8°C | 48 mm | 69% | 0.7 m/s | 4.7 |
| 2004 | 21.1°C | 15.5°C | 9.9°C | 28.4°C | 6.7°C | 83 mm | 81% | 0.7 m/s | 3.9 |
| 2003 | 26.0°C | 18.5°C | 10.9°C | 37.4°C | 6.1°C | 45 mm | 66% | 0.7 m/s | 4.4 |
| 2002 | 25.2°C | 17.6°C | 10.0°C | 35.4°C | 6.2°C | 35 mm | 64% | 0.7 m/s | 4.8 |
| 2001 | 25.3°C | 17.7°C | 10.2°C | 32.9°C | 5.8°C | 22 mm | 68% | 0.7 m/s | 4.5 |
| 2000 | 22.6°C | 16.4°C | 10.1°C | 31.9°C | 2.5°C | 59 mm | 69% | 0.8 m/s | 4.3 |
| 1999 | 25.3°C | 17.4°C | 9.5°C | 32.3°C | 4.7°C | 5 mm | 59% | 0.8 m/s | 5.1 |
| 1998 | 25.7°C | 18.0°C | 10.4°C | 34.2°C | 7.0°C | 41 mm | 70% | 0.7 m/s | 4.9 |
| 1997 | 23.2°C | 17.2°C | 11.1°C | 30.3°C | 6.8°C | 136 mm | 76% | 0.8 m/s | 4.4 |
| 1996 | 21.2°C | 15.0°C | 8.8°C | 32.5°C | 5.1°C | 91 mm | 75% | 0.7 m/s | 4 |
| 1995 | 25.2°C | 18.4°C | 11.6°C | 33.3°C | 8.3°C | 89 mm | 70% | 0.7 m/s | 4.1 |
| 1994 | 26.0°C | 18.7°C | 11.3°C | 33.3°C | 7.1°C | 41 mm | 67% | 0.7 m/s | 4.5 |
| 1993 | 26.2°C | 18.3°C | 10.3°C | 34.4°C | 4.3°C | 2 mm | 61% | 0.7 m/s | 4.8 |
| 1992 | 23.2°C | 16.2°C | 9.2°C | 30.8°C | 4.4°C | 76 mm | 68% | 0.7 m/s | 4.2 |
| 1991 | 27.3°C | 19.2°C | 11.1°C | 34.3°C | 7.0°C | 4 mm | 59% | 0.7 m/s | 5 |
| 1990 | 27.5°C | 19.4°C | 11.2°C | 34.6°C | 7.3°C | 14 mm | 65% | 0.7 m/s | 4.3 |
| 1989 | 25.9°C | 17.9°C | 9.9°C | 33.1°C | 6.3°C | 24 mm | 57% | 0.8 m/s | 4.9 |
| 1988 | 24.8°C | 17.2°C | 9.6°C | 37.7°C | 5.2°C | 49 mm | 63% | 0.8 m/s | 4.3 |
| 1987 | 26.9°C | 18.8°C | 10.6°C | 34.2°C | 6.1°C | 20 mm | 60% | 0.7 m/s | 4.4 |
| 1986 | 20.6°C | 14.6°C | 8.6°C | 33.7°C | 5.8°C | 124 mm | 74% | 0.7 m/s | 3.6 |
| 1985 ❄️ | 19.9°C | 13.9°C | 7.9°C | 25.9°C | 3.1°C | 96 mm | 72% | 0.8 m/s | 3.9 |
| 1984 | 22.4°C | 15.6°C | 8.9°C | 30.2°C | 3.1°C | 67 mm | 68% | 0.8 m/s | 4 |
| 1983 | 20.8°C | 14.3°C | 7.7°C | 27.3°C | 1.5°C | 39 mm | 72% | 0.8 m/s | — |
| 1982 | 22.4°C | 15.9°C | 9.5°C | 33.6°C | 4.8°C | 107 mm | 73% | 0.7 m/s | — |
| 1981 | 24.4°C | 17.2°C | 10.0°C | 36.9°C | 5.3°C | 82 mm | 67% | 0.8 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 24.3°C with lows near 10.3°C (mean 17.3°C), based on 45 years of NASA POWER data.
September averages 57 mm of rainfall in Vancouver, one of the drier months. The wettest on record was 230 mm in 2013.
The hottest September reached 38.5°C in 2017. The coldest dipped to 1.5°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 2.9°C. Daytime highs moved from 22°C to 25.3°C and overnight lows from 8.8°C to 11.3°C over the same span.
September is one of the warmer months of the year in Vancouver and one of the drier months, so plan for around 24.3°C daytime highs and 10.3°C at night.
Not quite — September is the 10th coolest month in Vancouver, averaging 17.3°C.
For September in Vancouver, pack light layers you can adjust through the day, with typical highs of 24.3°C and lows of 10.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 68% — moderately humid.
Average wind speed in September is 0.7 m/s. The windiest September on record averaged 0.8 m/s (1981).
The wettest September on record was 2013 with 230 mm. On average, September sees 57 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 Vancouver behaves each September, 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 September specifically, along with year-by-year records and how the month has changed over the decades.
