Hornby Island Weather in September
Average highs run from 20°C on September 1 to 16°C on September 30, and lows from 15°C to 12°C. Normal precipitation for the month is 56 mm over about 10 wet days.
September day by day
The normal high and low for each date, and the record, in °C.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 18°C
- Average low
- 14°C
- Precipitation
- 56 mm
- Record high
- 29°CSep 2, 2022
- Record low
- 8°CSep 29, 2009
- Daylight
- 13 h 26 min to 11 h 42 min
- Cloud cover
- 54%
- Humidity
- 78%
- Dew point
- 11°C
- Wind
- 6.8 km/h
Every day of the month
A wet day has at least 1 mm of precipitation in the reanalysis.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 20°C | 15°C | 25°C 1998 | 11°C 2000 | 30% |
| Sep 2 | 20°C | 15°C | 29°C 2022 | 12°C 2015 | 30% |
| Sep 3 | 20°C | 15°C | 26°C 2017 | 11°C 2015 | 30% |
| Sep 4 | 20°C | 15°C | 27°C 2017 | 11°C 2015 | 29% |
| Sep 5 | 19°C | 15°C | 26°C 2017 | 12°C 2001 | 28% |
| Sep 6 | 20°C | 15°C | 25°C 2014 | 12°C 2010 | 28% |
| Sep 7 | 19°C | 15°C | 25°C 2014 | 12°C 1999 | 28% |
| Sep 8 | 19°C | 15°C | 24°C 2011 | 13°C 2003 | 29% |
| Sep 9 | 19°C | 14°C | 24°C 2022 | 11°C 2012 | 31% |
| Sep 10 | 19°C | 14°C | 24°C 2022 | 11°C 2012 | 32% |
| Sep 11 | 19°C | 14°C | 25°C 2011 | 11°C 2012 | 34% |
| Sep 12 | 20°C | 15°C | 25°C 2022 | 12°C 2012 | 34% |
| Sep 13 | 19°C | 14°C | 24°C 2022 | 12°C 2010 | 34% |
| Sep 14 | 18°C | 14°C | 25°C 2022 | 11°C 2004 | 34% |
| Sep 15 | 18°C | 14°C | 24°C 2022 | 11°C 2004 | 33% |
| Sep 16 | 18°C | 14°C | 22°C 2014 | 11°C 2021 | 33% |
| Sep 17 | 17°C | 14°C | 22°C 2025 | 11°C 1997 | 34% |
| Sep 18 | 17°C | 13°C | 24°C 2022 | 9°C 2004 | 34% |
| Sep 19 | 18°C | 13°C | 21°C 2022 | 10°C 2017 | 36% |
| Sep 20 | 18°C | 13°C | 24°C 2022 | 10°C 2017 | 36% |
| Sep 21 | 17°C | 13°C | 24°C 2022 | 10°C 1996 | 36% |
| Sep 22 | 18°C | 13°C | 22°C 1997 | 10°C 1996 | 37% |
| Sep 23 | 17°C | 13°C | 24°C 2009 | 10°C 1996 | 36% |
| Sep 24 | 16°C | 13°C | 25°C 2022 | 10°C 2013 | 35% |
| Sep 25 | 17°C | 13°C | 23°C 2022 | 10°C 2013 | 35% |
| Sep 26 | 17°C | 13°C | 24°C 2022 | 10°C 1999 | 34% |
| Sep 27 | 17°C | 12°C | 26°C 2022 | 10°C 1999 | 34% |
| Sep 28 | 17°C | 12°C | 22°C 2017 | 9°C 2019 | 34% |
| Sep 29 | 16°C | 12°C | 21°C 2003 | 8°C 2009 | 35% |
| Sep 30 | 16°C | 12°C | 22°C 2022 | 10°C 2009 | 38% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- September 1
- sunrise 6:35 AM, sunset 8:01 PM
- September 30
- sunrise 7:17 AM, sunset 6:59 PM
Other months
Sources
Records: NOAA GHCN-Daily, station CA001027403, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-29. Sun and moon: computed with the NOAA solar equations and Meeus.