April is one of the cooler months of the year in Cape Breton, with average highs near 5.1°C and lows around -0.4°C (mean 2.3°C). It is about average for rainfall, averaging 92 mm of rainfall and 86% relative humidity across the period.
April is one of the cooler months of the year in Cape Breton. Across 45 years of records, the warmest April in Cape Breton was 2010 — when the month averaged 4.4°C — while the coldest was 2015 at -0.3°C. Typical April days reach 5.1°C with nights near -0.4°C. The long-term April temperature trend is broadly flat.
April is about average for rainfall in Cape Breton, averaging 92 mm of rainfall. The wettest April on record was 1982 with 190 mm, while the driest was 1995 at 15 mm.
Relative humidity in Cape Breton during April averages 86%. The most humid April was 1983 at 92%, and the least humid was 2003 at 81%.
April receives about 4.2 kWh/m²/day of solar energy in Cape Breton. The sunniest April was 1992 at 5.2 kWh/m²/day, and the cloudiest were 1988 and 2000 at 3.6.
Average wind speed in Cape Breton during April is 6.2 m/s. The windiest April was 1997 at 7.4 m/s, while the calmest was 1991 at 5.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 2.4°C | 2.1°C | 2.3°C | 2.3°C | 2.8°C | +0.4°C |
| Avg High | 4.9°C | 5.1°C | 5.0°C | 5.2°C | 5.3°C | +0.4°C |
| Avg Low | -0.2°C | -0.9°C | -0.5°C | -0.5°C | 0.2°C | +0.4°C |
| Avg Rain | 106 mm | 66 mm | 109 mm | 93 mm | 81 mm | -25 mm |
April temperatures in Cape Breton have risen by about 0.6°C between 1981–1985 and 2021–2025.
April has ranged from a record low of -10.7°C (2015) to a record high of 16.8°C (2017).
Rainfall in April is about average for rainfall, averaging 92 mm, with a wettest year of 190 mm.
A good time to visit Cape Breton
April is a good time to visit Cape Breton, with days averaging 5.1°C and nights around -0.4°C (mean 2.3°C, cooler than Cape Breton's yearly average) and higher rainfall. August and July are marginally more temperate, but April still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 5.1°C | 2.6°C | 0.0°C | 12.3°C | -3.6°C | 101 mm | 86% | 5.9 m/s | 3.8 |
| 2024 | 5.1°C | 2.7°C | 0.3°C | 10.3°C | -2.4°C | 53 mm | 84% | 6.3 m/s | 4.6 |
| 2023 | 5.7°C | 2.7°C | -0.2°C | 10.2°C | -3.6°C | 22 mm | 84% | 5.5 m/s | 4.8 |
| 2022 | 5.2°C | 2.7°C | 0.2°C | 10.8°C | -3.4°C | 88 mm | 89% | 6.3 m/s | 4 |
| 2021 | 5.9°C | 3.8°C | 1.6°C | 12.2°C | -1.2°C | 159 mm | 91% | 6.7 m/s | 4.1 |
| 2020 | 4.9°C | 2.2°C | -0.5°C | 13.3°C | -3.5°C | 62 mm | 83% | 6.2 m/s | 4.7 |
| 2019 | 5.2°C | 2.4°C | -0.4°C | 14.2°C | -4.8°C | 123 mm | 85% | 7 m/s | 3.9 |
| 2018 | 4.9°C | 1.9°C | -1.1°C | 11.6°C | -6.9°C | 132 mm | 84% | 6.1 m/s | 4.2 |
| 2017 | 5.4°C | 2.5°C | -0.5°C | 16.8°C | -3.8°C | 51 mm | 87% | 5.5 m/s | 4.6 |
| 2016 | 4.2°C | 1.3°C | -1.5°C | 10.5°C | -6.8°C | 124 mm | 85% | 6.6 m/s | 4.2 |
| 2015 ❄️ | 2.7°C | -0.3°C | -3.3°C | 8.2°C | -10.7°C | 68 mm | 86% | 5.5 m/s | 3.9 |
| 2014 | 4.1°C | 1.6°C | -0.9°C | 11.2°C | -4.0°C | 109 mm | 88% | 6.7 m/s | 3.8 |
| 2013 | 4.9°C | 2.3°C | -0.2°C | 10.4°C | -3.1°C | 73 mm | 87% | 5.8 m/s | 4.3 |
| 2012 | 6.8°C | 4.0°C | 1.2°C | 12.4°C | -2.9°C | 85 mm | 86% | 6.2 m/s | 4.6 |
| 2011 | 6.4°C | 3.1°C | -0.2°C | 14.6°C | -4.6°C | 80 mm | 84% | 6.7 m/s | 4 |
| 2010 🔥 | 7.3°C | 4.4°C | 1.5°C | 13.6°C | -1.5°C | 89 mm | 88% | 5.3 m/s | 4.5 |
| 2009 | 5.8°C | 2.7°C | -0.4°C | 16.3°C | -3.5°C | 90 mm | 85% | 6.4 m/s | 4.7 |
| 2008 | 5.4°C | 2.6°C | -0.2°C | 11.0°C | -2.7°C | 59 mm | 85% | 5.3 m/s | 4.5 |
| 2007 | 4.4°C | 1.8°C | -0.8°C | 13.0°C | -4.0°C | 71 mm | 81% | 6.7 m/s | 4.5 |
| 2006 | 5.9°C | 3.2°C | 0.4°C | 10.5°C | -1.9°C | 182 mm | 87% | 6.3 m/s | 4.2 |
| 2005 | 5.6°C | 2.4°C | -0.7°C | 11.6°C | -3.4°C | 79 mm | 85% | 5.4 m/s | 4.5 |
| 2004 | 5.2°C | 2.5°C | -0.3°C | 9.3°C | -2.7°C | 98 mm | 89% | 5.9 m/s | 3.7 |
| 2003 | 3.8°C | 1.0°C | -1.9°C | 12.2°C | -7.7°C | 157 mm | 81% | 5.3 m/s | 4.3 |
| 2002 | 4.7°C | 2.0°C | -0.7°C | 8.6°C | -3.1°C | 95 mm | 84% | 6.1 m/s | 3.8 |
| 2001 | 3.8°C | 1.3°C | -1.1°C | 9.6°C | -3.3°C | 160 mm | 84% | 6.5 m/s | 4 |
| 2000 | 5.8°C | 3.1°C | 0.4°C | 10.1°C | -2.8°C | 101 mm | 86% | 6.2 m/s | 3.6 |
| 1999 | 5.1°C | 2.5°C | 0.0°C | 11.0°C | -3.6°C | 144 mm | 85% | 6.6 m/s | 4 |
| 1998 | 5.7°C | 3.1°C | 0.4°C | 14.3°C | -3.3°C | 114 mm | 87% | 5.9 m/s | 3.8 |
| 1997 | 3.2°C | 0.8°C | -1.6°C | 7.7°C | -3.7°C | 97 mm | 85% | 7.4 m/s | 4.1 |
| 1996 | 5.4°C | 2.5°C | -0.4°C | 10.6°C | -3.0°C | 52 mm | 85% | 5.9 m/s | 3.9 |
| 1995 | 5.5°C | 2.0°C | -1.4°C | 10.4°C | -9.6°C | 15 mm | 82% | 5.6 m/s | 4 |
| 1994 | 6.2°C | 2.8°C | -0.5°C | 13.6°C | -6.8°C | 62 mm | 84% | 6.4 m/s | 4.4 |
| 1993 | 5.2°C | 2.2°C | -0.9°C | 10.7°C | -6.4°C | 53 mm | 88% | 5.9 m/s | 4 |
| 1992 | 3.6°C | 0.4°C | -2.7°C | 10.0°C | -5.4°C | 42 mm | 82% | 6.3 m/s | 5.2 |
| 1991 | 5.3°C | 1.8°C | -1.6°C | 13.5°C | -4.7°C | 23 mm | 82% | 5.1 m/s | 4.8 |
| 1990 | 5.8°C | 2.7°C | -0.4°C | 11.5°C | -2.7°C | 59 mm | 84% | 6.1 m/s | 3.8 |
| 1989 | 5.8°C | 2.7°C | -0.3°C | 12.1°C | -3.7°C | 51 mm | 83% | 6 m/s | 4.4 |
| 1988 | 4.4°C | 2.0°C | -0.3°C | 8.2°C | -3.5°C | 118 mm | 90% | 6.9 m/s | 3.6 |
| 1987 | 5.5°C | 2.7°C | -0.1°C | 12.6°C | -2.6°C | 63 mm | 88% | 6.3 m/s | 4.3 |
| 1986 | 4.6°C | 2.3°C | 0.0°C | 10.6°C | -5.1°C | 73 mm | 90% | 5.8 m/s | 3.8 |
| 1985 | 3.3°C | 0.6°C | -2.1°C | 7.6°C | -5.8°C | 34 mm | 86% | 6.5 m/s | 4.2 |
| 1984 | 4.5°C | 2.3°C | 0.1°C | 9.0°C | -4.6°C | 171 mm | 89% | 6.9 m/s | 4.3 |
| 1983 | 6.0°C | 3.8°C | 1.7°C | 15.1°C | -4.3°C | 154 mm | 92% | 5.8 m/s | — |
| 1982 🌧️ | 4.7°C | 1.9°C | -0.8°C | 9.9°C | -4.7°C | 190 mm | 87% | 7.2 m/s | — |
| 1981 | 5.7°C | 2.9°C | 0.1°C | 9.4°C | -5.5°C | 98 mm | 86% | 7.2 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 5.1°C with lows near -0.4°C (mean 2.3°C), based on 45 years of NASA POWER data.
April averages 92 mm of rainfall in Cape Breton, about average for rainfall. The wettest on record was 190 mm in 1982.
The hottest April reached 16.8°C in 2017. The coldest dipped to -10.7°C in 2015.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.6°C. Daytime highs moved from 4.8°C to 5.4°C and overnight lows from -0.2°C to 0.4°C over the same span.
April is one of the cooler months of the year in Cape Breton and about average for rainfall, so plan for around 5.1°C daytime highs and -0.4°C at night.
Not quite — April is the 5th coolest month in Cape Breton, averaging 2.3°C.
For April in Cape Breton, pack warm layers and a jacket for chilly mornings, with typical highs of 5.1°C and lows of -0.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in April averages 86% — quite humid.
Average wind speed in April is 6.2 m/s. The windiest April on record averaged 7.4 m/s (1997).
The wettest April on record was 1982 with 190 mm. On average, April sees 92 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 Cape Breton behaves each April, 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 April specifically, along with year-by-year records and how the month has changed over the decades.
