March is one of the cooler months of the year in Comox, with average highs near 7.5°C and lows around 0.5°C (mean 4°C). It is a relatively wet time of year, averaging 111 mm of rainfall and 87% relative humidity across the period.
March is one of the cooler months of the year in Comox. Across 45 years of records, the warmest March in Comox was 1992 — when the month averaged 7.5°C — while the coldest were 2002 and 2009 at 1.8°C. Typical March days reach 7.5°C with nights near 0.5°C. The long-term March temperature trend is broadly flat.
March is a relatively wet time of year in Comox, averaging 111 mm of rainfall. The wettest March on record was 1997 with 221 mm, while the driest was 2019 at 20 mm.
Relative humidity in Comox during March averages 87%. The most humid Marchs were 2017 and 2025 at 92%, and the least humid was 2019 at 79%.
March receives about 2.6 kWh/m²/day of solar energy in Comox. The sunniest March was 2019 at 3.6 kWh/m²/day, and the cloudiest were 2011 and 2017 at 2.2.
Average wind speed in Comox during March is 0.6 m/s. The windiest Marchs were 2012, 2016 and 2021, among others at 0.7 m/s, while the calmest were 2015 and 2025 at 0.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 4.2°C | 4.3°C | 3.5°C | 4.1°C | 3.8°C | -0.4°C |
| Avg High | 7.8°C | 7.9°C | 6.9°C | 7.5°C | 7.3°C | -0.5°C |
| Avg Low | 0.6°C | 0.6°C | 0.1°C | 0.8°C | 0.3°C | -0.3°C |
| Avg Rain | 126 mm | 116 mm | 115 mm | 111 mm | 72 mm | -54 mm |
March temperatures in Comox have fallen by about 0.3°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -9.8°C (1989) to a record high of 20.1°C (2016).
Rainfall in March is a relatively wet time of year, averaging 111 mm, with a wettest year of 221 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.2°C per decade while lows rose 0°C per decade, narrowing the gap between day and night.
A good time to visit Comox
March is a good time to visit Comox, with days averaging 7.5°C and nights around 0.5°C (mean 4°C, cooler than Comox's yearly average) and higher rainfall. August and July are marginally more temperate, but March still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 7.3°C | 4.2°C | 1.1°C | 13.9°C | -2.6°C | 131 mm | 92% | 0.5 m/s | 2.3 |
| 2024 | 8.4°C | 4.7°C | 1.0°C | 17.3°C | -4.8°C | 82 mm | 87% | 0.6 m/s | 2.9 |
| 2023 | 6.5°C | 3.1°C | -0.3°C | 12.7°C | -3.1°C | 41 mm | 86% | 0.6 m/s | 2.8 |
| 2022 | 7.7°C | 4.4°C | 1.1°C | 12.9°C | -2.6°C | 70 mm | 89% | 0.6 m/s | 2.6 |
| 2021 | 7.2°C | 3.5°C | -0.3°C | 11.5°C | -4.3°C | 57 mm | 86% | 0.7 m/s | 2.9 |
| 2020 | 6.6°C | 2.9°C | -0.8°C | 13.5°C | -5.2°C | 49 mm | 84% | 0.6 m/s | 3.3 |
| 2019 | 9.1°C | 4.7°C | 0.3°C | 16.9°C | -4.3°C | 20 mm | 79% | 0.6 m/s | 3.6 |
| 2018 | 7.5°C | 3.8°C | 0.1°C | 13.3°C | -2.9°C | 49 mm | 86% | 0.6 m/s | 3 |
| 2017 | 5.7°C | 3.0°C | 0.2°C | 11.2°C | -3.3°C | 133 mm | 92% | 0.6 m/s | 2.2 |
| 2016 | 8.9°C | 5.4°C | 2.0°C | 20.1°C | -2.4°C | 160 mm | 88% | 0.7 m/s | 2.6 |
| 2015 | 9.8°C | 6.5°C | 3.2°C | 12.5°C | -0.1°C | 92 mm | 88% | 0.5 m/s | 2.6 |
| 2014 | 7.4°C | 4.0°C | 0.6°C | 11.0°C | -3.6°C | 119 mm | 89% | 0.6 m/s | 2.5 |
| 2013 | 8.1°C | 4.5°C | 1.0°C | 16.0°C | -3.5°C | 76 mm | 85% | 0.6 m/s | 2.8 |
| 2012 | 5.2°C | 2.2°C | -0.8°C | 12.4°C | -5.0°C | 145 mm | 89% | 0.7 m/s | 2.5 |
| 2011 | 5.9°C | 3.1°C | 0.3°C | 11.7°C | -2.5°C | 189 mm | 92% | 0.7 m/s | 2.2 |
| 2010 | 7.3°C | 4.1°C | 0.9°C | 12.0°C | -2.5°C | 129 mm | 88% | 0.7 m/s | 2.5 |
| 2009 | 5.1°C | 1.8°C | -1.5°C | 8.0°C | -6.6°C | 94 mm | 84% | 0.7 m/s | 2.8 |
| 2008 | 5.6°C | 2.2°C | -1.2°C | 9.1°C | -3.8°C | 84 mm | 89% | 0.6 m/s | 2.6 |
| 2007 | 7.0°C | 4.0°C | 1.0°C | 10.6°C | -5.2°C | 133 mm | 90% | 0.6 m/s | 2.3 |
| 2006 | 6.5°C | 3.4°C | 0.3°C | 10.9°C | -3.3°C | 145 mm | 89% | 0.6 m/s | 2.4 |
| 2005 | 9.9°C | 5.9°C | 1.9°C | 15.4°C | -2.3°C | 121 mm | 87% | 0.6 m/s | 2.9 |
| 2004 | 8.6°C | 4.9°C | 1.3°C | 16.1°C | -2.1°C | 87 mm | 88% | 0.6 m/s | 2.8 |
| 2003 | 7.3°C | 4.1°C | 1.0°C | 10.4°C | -5.1°C | 140 mm | 90% | 0.6 m/s | 2.3 |
| 2002 ❄️ | 5.0°C | 1.8°C | -1.5°C | 10.5°C | -7.3°C | 91 mm | 86% | 0.6 m/s | 2.4 |
| 2001 | 7.7°C | 3.7°C | -0.2°C | 14.8°C | -2.9°C | 117 mm | 88% | 0.6 m/s | 2.6 |
| 2000 | 6.8°C | 3.6°C | 0.4°C | 12.6°C | -2.9°C | 135 mm | 90% | 0.6 m/s | 2.7 |
| 1999 | 5.7°C | 2.7°C | -0.2°C | 15.0°C | -3.6°C | 183 mm | 91% | 0.6 m/s | 2.4 |
| 1998 | 8.2°C | 4.9°C | 1.5°C | 12.4°C | -2.2°C | 105 mm | 87% | 0.6 m/s | 2.6 |
| 1997 🌧️ | 5.9°C | 2.9°C | -0.1°C | 10.2°C | -4.9°C | 221 mm | 90% | 0.7 m/s | 2.3 |
| 1996 | 7.9°C | 4.2°C | 0.5°C | 14.9°C | -5.4°C | 105 mm | 83% | 0.6 m/s | 2.9 |
| 1995 | 8.0°C | 4.4°C | 0.8°C | 15.3°C | -3.9°C | 141 mm | 84% | 0.6 m/s | 2.7 |
| 1994 | 9.2°C | 5.1°C | 1.0°C | 17.6°C | -4.1°C | 87 mm | 83% | 0.6 m/s | 2.6 |
| 1993 | 7.8°C | 4.1°C | 0.4°C | 11.7°C | -3.2°C | 141 mm | 87% | 0.7 m/s | 2.5 |
| 1992 🔥 | 12.2°C | 7.5°C | 2.8°C | 16.2°C | -0.4°C | 34 mm | 81% | 0.6 m/s | 3.2 |
| 1991 | 6.1°C | 2.5°C | -1.1°C | 13.2°C | -6.5°C | 67 mm | 85% | 0.6 m/s | 2.8 |
| 1990 | 8.4°C | 4.5°C | 0.6°C | 15.0°C | -3.3°C | 81 mm | 86% | 0.6 m/s | 2.9 |
| 1989 | 5.2°C | 2.1°C | -1.0°C | 9.9°C | -9.8°C | 141 mm | 89% | 0.6 m/s | 2.4 |
| 1988 | 7.8°C | 4.0°C | 0.3°C | 12.2°C | -3.3°C | 126 mm | 86% | 0.6 m/s | 2.3 |
| 1987 | 8.9°C | 5.4°C | 1.8°C | 16.0°C | -2.3°C | 138 mm | 86% | 0.6 m/s | 2.6 |
| 1986 | 8.4°C | 5.0°C | 1.5°C | 13.3°C | -1.3°C | 162 mm | 90% | 0.6 m/s | 2.4 |
| 1985 | 6.4°C | 2.9°C | -0.7°C | 12.4°C | -3.2°C | 103 mm | 87% | 0.6 m/s | 2.8 |
| 1984 | 8.9°C | 5.4°C | 1.9°C | 15.1°C | -1.5°C | 115 mm | 88% | 0.6 m/s | 2.6 |
| 1983 | 8.9°C | 5.3°C | 1.7°C | 13.5°C | -2.1°C | 141 mm | 87% | 0.6 m/s | — |
| 1982 | 6.6°C | 2.9°C | -0.9°C | 12.1°C | -2.7°C | 90 mm | 86% | 0.6 m/s | — |
| 1981 | 9.2°C | 4.9°C | 0.6°C | 14.5°C | -2.9°C | 118 mm | 85% | 0.6 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 7.5°C with lows near 0.5°C (mean 4°C), based on 45 years of NASA POWER data.
March averages 111 mm of rainfall in Comox, a relatively wet time of year. The wettest on record was 221 mm in 1997.
The hottest March reached 20.1°C in 2016. The coldest dipped to -9.8°C in 1989.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have fallen by about 0.3°C. Daytime highs moved from 8°C to 7.4°C and overnight lows from 0.5°C to 0.5°C over the same span.
March is one of the cooler months of the year in Comox and a relatively wet time of year, so plan for around 7.5°C daytime highs and 0.5°C at night.
Not quite — March is the 5th coolest month in Comox, averaging 4°C.
For March in Comox, pack warm layers and a jacket for chilly mornings, with typical highs of 7.5°C and lows of 0.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 87% — quite humid.
Average wind speed in March is 0.6 m/s. The windiest March on record averaged 0.7 m/s (1993).
The wettest March on record was 1997 with 221 mm. On average, March sees 111 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 March, 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 March specifically, along with year-by-year records and how the month has changed over the decades.
