March is one of the cooler months of the year in Conception Bay South, with average highs near 1.3°C and lows around -4.7°C (mean -1.7°C). It is about average for rainfall, averaging 102 mm of rainfall and 87% relative humidity across the period.
March is one of the cooler months of the year in Conception Bay South. Across 45 years of records, the warmest March in Conception Bay South was 1999 — when the month averaged 1.5°C — while the coldest were 2003 and 2014 at -4.4°C. Typical March days reach 1.3°C with nights near -4.7°C. The long-term trend is warming, about 0.2°C per decade.
March is about average for rainfall in Conception Bay South, averaging 102 mm of rainfall. The wettest March on record was 2024 with 191 mm, while the driest was 1990 at 42 mm.
Relative humidity in Conception Bay South during March averages 87%. The most humid March was 2006 at 92%, and the least humid was 1990 at 79%.
March receives about 2.8 kWh/m²/day of solar energy in Conception Bay South. The sunniest Marchs were 2016, 2019 and 2022 at 3.2 kWh/m²/day, and the cloudiest were 1991 and 2006 at 2.4.
Average wind speed in Conception Bay South during March is 2.1 m/s. The windiest March was 2002 at 2.5 m/s, while the calmest was 2025 at 1.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -2.0°C | -1.8°C | -1.8°C | -1.7°C | -0.8°C | +1.2°C |
| Avg High | 1.0°C | 1.4°C | 1.2°C | 1.1°C | 2.0°C | +1°C |
| Avg Low | -5.1°C | -5.0°C | -4.7°C | -4.5°C | -3.6°C | +1.5°C |
| Avg Rain | 98 mm | 90 mm | 111 mm | 104 mm | 109 mm | +11 mm |
March temperatures in Conception Bay South have risen by about 1.2°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -20.3°C (1982) to a record high of 12.7°C (2000).
Rainfall in March is about average for rainfall, averaging 102 mm, with a wettest year of 191 mm.
A quieter season to visit Conception Bay South
If your dates are flexible, the more temperate months of August and July tend to be the most comfortable for visiting Conception Bay South. That said, March — with days averaging 1.3°C and nights around -4.7°C (mean -1.7°C) and higher rainfall (102 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 3.5°C | 0.5°C | -2.6°C | 11.9°C | -8.0°C | 95 mm | 87% | 1.7 m/s | 3 |
| 2024 🌧️ | 2.5°C | -0.1°C | -2.7°C | 11.6°C | -7.7°C | 191 mm | 89% | 1.8 m/s | 2.7 |
| 2023 | 0.8°C | -1.4°C | -3.6°C | 4.2°C | -12.7°C | 69 mm | 88% | 2.2 m/s | 3.1 |
| 2022 | 1.6°C | -1.2°C | -4.0°C | 11.2°C | -10.8°C | 121 mm | 86% | 2.2 m/s | 3.2 |
| 2021 | 2.9°C | -0.1°C | -3.2°C | 10.8°C | -6.9°C | 55 mm | 85% | 2.1 m/s | 3.1 |
| 2020 | 0.9°C | -2.3°C | -5.6°C | 6.7°C | -14.1°C | 122 mm | 87% | 2.3 m/s | 2.9 |
| 2019 | 1.0°C | -2.2°C | -5.4°C | 10.9°C | -11.5°C | 80 mm | 85% | 1.9 m/s | 3.2 |
| 2018 | 2.1°C | 0.2°C | -1.7°C | 8.0°C | -5.4°C | 97 mm | 90% | 2.1 m/s | 2.7 |
| 2017 | 1.0°C | -2.0°C | -4.9°C | 6.0°C | -11.7°C | 136 mm | 86% | 2.3 m/s | 2.8 |
| 2016 | 1.2°C | -2.2°C | -5.6°C | 5.7°C | -9.4°C | 105 mm | 83% | 2.2 m/s | 3.2 |
| 2015 | -0.4°C | -3.8°C | -7.2°C | 4.8°C | -13.7°C | 113 mm | 86% | 2 m/s | 3.1 |
| 2014 | -0.9°C | -4.4°C | -7.9°C | 7.5°C | -17.0°C | 111 mm | 87% | 2.1 m/s | 3 |
| 2013 | 2.4°C | 0.3°C | -1.9°C | 6.1°C | -7.3°C | 98 mm | 89% | 2 m/s | 2.8 |
| 2012 | 1.0°C | -1.7°C | -4.4°C | 9.8°C | -11.6°C | 110 mm | 87% | 2 m/s | 2.8 |
| 2011 | 1.4°C | -1.2°C | -3.9°C | 6.5°C | -11.2°C | 79 mm | 87% | 2.3 m/s | 2.8 |
| 2010 | 2.4°C | -0.1°C | -2.6°C | 9.1°C | -7.4°C | 116 mm | 89% | 1.9 m/s | 3 |
| 2009 | 1.4°C | -1.6°C | -4.6°C | 9.1°C | -9.7°C | 139 mm | 87% | 2.2 m/s | 2.9 |
| 2008 | 0.2°C | -3.1°C | -6.5°C | 6.6°C | -12.0°C | 180 mm | 88% | 2.2 m/s | 2.6 |
| 2007 | 1.7°C | -1.3°C | -4.3°C | 9.1°C | -10.9°C | 56 mm | 85% | 2.2 m/s | 2.6 |
| 2006 | 1.2°C | -1.1°C | -3.4°C | 4.7°C | -11.1°C | 87 mm | 92% | 2 m/s | 2.4 |
| 2005 | 0.8°C | -1.8°C | -4.4°C | 6.4°C | -10.2°C | 151 mm | 88% | 1.9 m/s | 2.7 |
| 2004 | 1.3°C | -1.6°C | -4.5°C | 8.2°C | -10.3°C | 109 mm | 88% | 2.2 m/s | 2.7 |
| 2003 ❄️ | -0.7°C | -4.4°C | -8.1°C | 10.8°C | -15.9°C | 74 mm | 88% | 2.2 m/s | 3.1 |
| 2002 | 1.1°C | -2.2°C | -5.5°C | 7.7°C | -13.3°C | 98 mm | 84% | 2.5 m/s | 2.8 |
| 2001 | 1.0°C | -1.2°C | -3.4°C | 6.1°C | -9.5°C | 76 mm | 88% | 2.3 m/s | 2.7 |
| 2000 | 3.7°C | 0.6°C | -2.4°C | 12.7°C | -8.0°C | 137 mm | 89% | 2 m/s | 2.5 |
| 1999 🔥 | 4.3°C | 1.5°C | -1.3°C | 12.0°C | -4.3°C | 108 mm | 88% | 2.1 m/s | 2.9 |
| 1998 | 2.3°C | -0.4°C | -3.1°C | 7.3°C | -7.4°C | 65 mm | 86% | 1.9 m/s | 2.6 |
| 1997 | -0.7°C | -4.0°C | -7.4°C | 6.0°C | -15.1°C | 81 mm | 85% | 2.1 m/s | 3 |
| 1996 | 1.8°C | -1.2°C | -4.2°C | 8.2°C | -11.8°C | 52 mm | 85% | 1.9 m/s | 2.8 |
| 1995 | 1.1°C | -2.0°C | -5.2°C | 10.3°C | -11.7°C | 110 mm | 90% | 2 m/s | 2.5 |
| 1994 | 1.6°C | -1.7°C | -5.1°C | 10.1°C | -14.1°C | 167 mm | 90% | 1.9 m/s | 2.9 |
| 1993 | 0.5°C | -3.1°C | -6.7°C | 9.7°C | -12.4°C | 122 mm | 88% | 2.3 m/s | 2.9 |
| 1992 | 1.0°C | -2.5°C | -6.0°C | 8.7°C | -14.6°C | 79 mm | 86% | 2.4 m/s | 2.6 |
| 1991 | 1.8°C | -1.1°C | -4.0°C | 8.6°C | -12.3°C | 76 mm | 88% | 2.2 m/s | 2.4 |
| 1990 | 0.4°C | -3.5°C | -7.4°C | 7.4°C | -13.9°C | 42 mm | 79% | 2 m/s | 2.8 |
| 1989 | 0.0°C | -3.6°C | -7.2°C | 9.1°C | -15.1°C | 67 mm | 85% | 2.2 m/s | 2.8 |
| 1988 | 2.4°C | -0.7°C | -3.9°C | 12.1°C | -9.9°C | 96 mm | 85% | 2.2 m/s | 2.5 |
| 1987 | 0.7°C | -2.3°C | -5.3°C | 8.2°C | -13.5°C | 69 mm | 90% | 2 m/s | 2.7 |
| 1986 | 0.4°C | -3.3°C | -7.0°C | 9.6°C | -19.8°C | 158 mm | 90% | 2.1 m/s | 2.7 |
| 1985 | -0.7°C | -4.1°C | -7.4°C | 4.4°C | -16.9°C | 73 mm | 87% | 2.2 m/s | 3 |
| 1984 | 1.4°C | -1.1°C | -3.6°C | 10.2°C | -11.6°C | 109 mm | 88% | 2 m/s | 2.9 |
| 1983 | 2.5°C | -0.8°C | -4.1°C | 10.7°C | -16.6°C | 116 mm | 91% | 1.8 m/s | — |
| 1982 | 0.2°C | -3.0°C | -6.2°C | 8.7°C | -20.3°C | 75 mm | 87% | 2.2 m/s | — |
| 1981 | 2.4°C | 0.5°C | -1.5°C | 5.3°C | -5.7°C | 115 mm | 88% | 2.1 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 1.3°C with lows near -4.7°C (mean -1.7°C), based on 45 years of NASA POWER data.
March averages 102 mm of rainfall in Conception Bay South, about average for rainfall. The wettest on record was 191 mm in 2024.
The hottest March reached 12.7°C in 2000. The coldest dipped to -20.3°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 1.2°C. Daytime highs moved from 1.2°C to 2.3°C and overnight lows from -4.6°C to -3.2°C over the same span.
March is one of the cooler months of the year in Conception Bay South and about average for rainfall, so plan for around 1.3°C daytime highs and -4.7°C at night.
Not quite — March is the 3rd coolest month in Conception Bay South, averaging -1.7°C.
For March in Conception Bay South, pack warm layers and a jacket for chilly mornings, with typical highs of 1.3°C and lows of -4.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 87% — quite humid.
Average wind speed in March is 2.1 m/s. The windiest March on record averaged 2.5 m/s (2002).
The wettest March on record was 2024 with 191 mm. On average, March sees 102 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 Conception Bay South 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.
