July is one of the warmer months of the year in Comox, with average highs near 21.7°C and lows around 10.4°C (mean 16.1°C). It is one of the drier months, averaging 36 mm of rainfall and 78% relative humidity across the period.
July is one of the warmer months of the year in Comox. Across 45 years of records, the warmest Julys in Comox were 2021 and 2024 — when the month averaged 18.4°C — while the coldest was 1983 at 14°C. Typical July days reach 21.7°C with nights near 10.4°C. The long-term trend is warming, about 0.6°C per decade.
July is one of the drier months in Comox, averaging 36 mm of rainfall. The wettest July on record was 1983 with 78 mm, while the driest was 1985 at 4 mm.
Relative humidity in Comox during July averages 78%. The most humid July was 2011 at 82%, and the least humid was 2023 at 72%.
July receives about 6.1 kWh/m²/day of solar energy in Comox. The sunniest July was 2013 at 7.4 kWh/m²/day, and the cloudiest was 1993 at 4.9.
Average wind speed in Comox during July is 0.4 m/s. The windiest Julys were 2014, 2016 and 2020, among others at 0.5 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 15.0°C | 15.9°C | 16.1°C | 16.3°C | 17.6°C | +2.6°C |
| Avg High | 20.5°C | 21.4°C | 21.6°C | 22.0°C | 23.8°C | +3.3°C |
| Avg Low | 9.4°C | 10.4°C | 10.6°C | 10.6°C | 11.4°C | +2°C |
| Avg Rain | 39 mm | 36 mm | 34 mm | 39 mm | 28 mm | -11 mm |
July temperatures in Comox have risen by about 2.7°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 4.5°C (1986) to a record high of 34.6°C (2009).
Rainfall in July is one of the drier months, averaging 36 mm, with a wettest year of 78 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.7°C per decade while lows rose 0.4°C per decade, widening the gap between day and night.
One of the best times to visit Comox
July is one of the best times to visit Comox. Expect days averaging 21.7°C and nights around 10.4°C (mean 16.1°C) — warmer than Comox's yearly average — with moderate rainfall (36 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 | 23.7°C | 17.8°C | 12.0°C | 28.6°C | 8.9°C | 16 mm | 74% | 0.4 m/s | 6.9 |
| 2024 | 25.4°C | 18.4°C | 11.4°C | 31.6°C | 7.7°C | 24 mm | 72% | 0.4 m/s | 7 |
| 2023 | 24.4°C | 17.9°C | 11.4°C | 29.5°C | 7.3°C | 33 mm | 72% | 0.4 m/s | 6.7 |
| 2022 | 23.2°C | 17.5°C | 11.8°C | 33.3°C | 8.7°C | 39 mm | 80% | 0.4 m/s | 6 |
| 2021 🔥 | 25.0°C | 18.4°C | 11.8°C | 31.5°C | 7.9°C | 20 mm | 73% | 0.4 m/s | 6.8 |
| 2020 | 20.9°C | 15.5°C | 10.0°C | 31.0°C | 6.6°C | 33 mm | 79% | 0.5 m/s | 6 |
| 2019 | 21.1°C | 16.1°C | 11.0°C | 25.2°C | 7.2°C | 73 mm | 81% | 0.4 m/s | 5.2 |
| 2018 | 24.0°C | 17.7°C | 11.4°C | 31.3°C | 6.7°C | 42 mm | 77% | 0.4 m/s | 6.8 |
| 2017 | 21.5°C | 15.7°C | 10.0°C | 27.1°C | 7.3°C | 25 mm | 79% | 0.4 m/s | 6.5 |
| 2016 | 20.7°C | 15.7°C | 10.7°C | 26.0°C | 7.8°C | 43 mm | 81% | 0.5 m/s | 5.6 |
| 2015 | 23.6°C | 17.6°C | 11.6°C | 29.5°C | 8.1°C | 40 mm | 76% | 0.4 m/s | 6.5 |
| 2014 | 23.3°C | 17.2°C | 11.1°C | 31.3°C | 8.3°C | 39 mm | 77% | 0.5 m/s | 6.4 |
| 2013 | 23.4°C | 16.9°C | 10.5°C | 28.1°C | 7.4°C | 13 mm | 77% | 0.4 m/s | 7.4 |
| 2012 | 21.4°C | 16.1°C | 10.7°C | 28.6°C | 5.6°C | 42 mm | 81% | 0.4 m/s | 6 |
| 2011 | 19.0°C | 14.2°C | 9.4°C | 26.5°C | 6.3°C | 64 mm | 82% | 0.4 m/s | 5 |
| 2010 | 22.2°C | 15.9°C | 9.6°C | 31.0°C | 6.0°C | 12 mm | 77% | 0.4 m/s | 7.3 |
| 2009 | 24.6°C | 18.3°C | 12.0°C | 34.6°C | 5.6°C | 35 mm | 75% | 0.4 m/s | 6.7 |
| 2008 | 20.9°C | 15.4°C | 9.8°C | 26.6°C | 6.3°C | 34 mm | 79% | 0.4 m/s | 6.1 |
| 2007 | 21.2°C | 16.1°C | 10.9°C | 33.1°C | 7.4°C | 55 mm | 82% | 0.4 m/s | 5.6 |
| 2006 | 21.8°C | 16.4°C | 11.0°C | 32.4°C | 7.6°C | 19 mm | 79% | 0.4 m/s | 6 |
| 2005 | 20.1°C | 15.0°C | 9.9°C | 26.1°C | 7.6°C | 52 mm | 82% | 0.5 m/s | 5.7 |
| 2004 | 22.9°C | 17.3°C | 11.6°C | 31.6°C | 8.6°C | 20 mm | 77% | 0.4 m/s | 6.4 |
| 2003 | 21.9°C | 16.1°C | 10.4°C | 29.0°C | 5.9°C | 19 mm | 78% | 0.4 m/s | 6.3 |
| 2002 | 21.7°C | 15.9°C | 10.2°C | 31.5°C | 5.3°C | 18 mm | 78% | 0.4 m/s | 6.2 |
| 2001 | 20.4°C | 15.0°C | 9.6°C | 27.7°C | 7.5°C | 15 mm | 80% | 0.4 m/s | 6 |
| 2000 | 20.1°C | 15.2°C | 10.3°C | 27.1°C | 5.9°C | 68 mm | 82% | 0.4 m/s | 5.4 |
| 1999 | 20.1°C | 14.9°C | 9.7°C | 25.9°C | 5.3°C | 38 mm | 80% | 0.4 m/s | 6.2 |
| 1998 | 23.1°C | 17.8°C | 12.4°C | 33.7°C | 8.5°C | 67 mm | 81% | 0.4 m/s | 5.9 |
| 1997 | 20.9°C | 15.6°C | 10.3°C | 27.0°C | 7.5°C | 51 mm | 80% | 0.5 m/s | 6 |
| 1996 | 21.9°C | 15.8°C | 9.7°C | 30.9°C | 5.1°C | 24 mm | 78% | 0.4 m/s | 6.5 |
| 1995 | 21.3°C | 16.1°C | 10.8°C | 29.8°C | 7.4°C | 32 mm | 79% | 0.4 m/s | 5.6 |
| 1994 | 22.8°C | 16.5°C | 10.3°C | 31.1°C | 6.0°C | 15 mm | 75% | 0.4 m/s | 6.4 |
| 1993 | 19.2°C | 14.2°C | 9.3°C | 22.3°C | 6.7°C | 47 mm | 81% | 0.4 m/s | 4.9 |
| 1992 | 21.7°C | 16.4°C | 11.1°C | 27.2°C | 8.6°C | 25 mm | 80% | 0.4 m/s | 5.9 |
| 1991 | 20.3°C | 15.0°C | 9.6°C | 29.5°C | 6.6°C | 42 mm | 79% | 0.4 m/s | 5.7 |
| 1990 | 23.1°C | 16.9°C | 10.8°C | 31.1°C | 6.8°C | 14 mm | 76% | 0.4 m/s | 6.5 |
| 1989 | 19.3°C | 14.2°C | 9.1°C | 24.8°C | 6.3°C | 60 mm | 81% | 0.4 m/s | 5.5 |
| 1988 | 20.5°C | 14.8°C | 9.2°C | 30.0°C | 5.4°C | 29 mm | 77% | 0.4 m/s | 5.8 |
| 1987 | 20.2°C | 14.9°C | 9.7°C | 26.7°C | 6.5°C | 33 mm | 79% | 0.4 m/s | 5.5 |
| 1986 | 19.2°C | 14.1°C | 9.0°C | 25.0°C | 4.5°C | 50 mm | 80% | 0.4 m/s | 5.5 |
| 1985 | 23.5°C | 16.9°C | 10.4°C | 30.9°C | 6.5°C | 4 mm | 75% | 0.4 m/s | 6.8 |
| 1984 | 21.0°C | 14.9°C | 8.7°C | 28.7°C | 4.9°C | 19 mm | 77% | 0.4 m/s | 6.3 |
| 1983 ❄️ 🌧️ | 19.0°C | 14.0°C | 8.9°C | 27.5°C | 5.9°C | 78 mm | 79% | 0.5 m/s | — |
| 1982 | 20.3°C | 15.0°C | 9.7°C | 28.8°C | 6.0°C | 30 mm | 79% | 0.4 m/s | — |
| 1981 | 21.3°C | 15.8°C | 10.3°C | 26.1°C | 6.0°C | 46 mm | 78% | 0.4 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 21.7°C with lows near 10.4°C (mean 16.1°C), based on 45 years of NASA POWER data.
July averages 36 mm of rainfall in Comox, one of the drier months. The wettest on record was 78 mm in 1983.
The hottest July reached 34.6°C in 2009. The coldest dipped to 4.5°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 2.7°C. Daytime highs moved from 21°C to 24.3°C and overnight lows from 9.6°C to 11.7°C over the same span.
July is one of the warmer months of the year in Comox and one of the drier months, so plan for around 21.7°C daytime highs and 10.4°C at night.
Not quite — July is the 11th coolest month in Comox, averaging 16.1°C.
For July in Comox, pack light layers you can adjust through the day, with typical highs of 21.7°C and lows of 10.4°C.
Relative humidity in July averages 78% — quite humid.
Average wind speed in July is 0.4 m/s. The windiest July on record averaged 0.5 m/s (1983).
The wettest July on record was 1983 with 78 mm. On average, July sees 36 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 Comox behaves each July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
