April is one of the warmer months of the year in Busselton, with average highs near 24.3°C and lows around 13.8°C (mean 19.1°C). It is one of the drier months, averaging 41 mm of rainfall and 66% relative humidity across the period.
April is one of the warmer months of the year in Busselton. Across 45 years of records, the warmest April in Busselton was 1999 — when the month averaged 21.4°C — while the coldest was 2006 at 17°C. Typical April days reach 24.3°C with nights near 13.8°C. The long-term April temperature trend is broadly flat.
April is one of the drier months in Busselton, averaging 41 mm of rainfall. The wettest April on record was 1990 with 110 mm, while the driest was 2009 at 2 mm.
Relative humidity in Busselton during April averages 66%. The most humid April was 1993 at 74%, and the least humid was 2024 at 52%.
April receives about 3.9 kWh/m²/day of solar energy in Busselton. The sunniest April was 2024 at 4.6 kWh/m²/day, and the cloudiest was 2016 at 3.5.
Average wind speed in Busselton during April is 3.4 m/s. The windiest April was 1989 at 4 m/s, while the calmest was 2013 at 2.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.8°C | 19.3°C | 18.6°C | 19.2°C | 19.3°C | +0.5°C |
| Avg High | 24.3°C | 24.5°C | 23.7°C | 24.5°C | 24.7°C | +0.4°C |
| Avg Low | 13.3°C | 14.0°C | 13.5°C | 14.0°C | 14.0°C | +0.7°C |
| Avg Rain | 46 mm | 31 mm | 47 mm | 39 mm | 44 mm | -2 mm |
April temperatures in Busselton have risen by about 0.6°C between 1981–1985 and 2021–2025.
April has ranged from a record low of 6.5°C (1982) to a record high of 34°C (1991).
Rainfall in April is one of the drier months, averaging 41 mm, with a wettest year of 110 mm.
A good time to visit Busselton
April is a good time to visit Busselton, with days averaging 24.3°C and nights around 13.8°C (mean 19.1°C, warmer than Busselton's yearly average) and moderate rainfall. March and December 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 | 25.5°C | 20.0°C | 14.6°C | 30.6°C | 9.9°C | 21 mm | 64% | 3.6 m/s | 3.8 |
| 2024 | 26.9°C | 20.5°C | 14.1°C | 33.9°C | 11.2°C | 4 mm | 52% | 3.9 m/s | 4.6 |
| 2023 | 22.7°C | 17.7°C | 12.8°C | 28.3°C | 9.3°C | 87 mm | 69% | 3.5 m/s | 3.8 |
| 2022 | 24.0°C | 18.8°C | 13.6°C | 32.8°C | 10.4°C | 43 mm | 66% | 3.2 m/s | 4 |
| 2021 | 24.9°C | 19.7°C | 14.5°C | 30.7°C | 10.6°C | 75 mm | 69% | 3 m/s | 3.7 |
| 2020 | 24.4°C | 19.4°C | 14.3°C | 32.3°C | 8.1°C | 34 mm | 68% | 3.5 m/s | 3.9 |
| 2019 | 24.0°C | 18.5°C | 13.1°C | 30.6°C | 7.7°C | 30 mm | 64% | 3.7 m/s | 4.3 |
| 2018 | 24.3°C | 19.3°C | 14.4°C | 31.1°C | 10.9°C | 22 mm | 67% | 3.3 m/s | 4 |
| 2017 | 25.2°C | 18.8°C | 12.5°C | 29.2°C | 8.9°C | 4 mm | 67% | 3.2 m/s | 4.4 |
| 2016 | 23.2°C | 18.8°C | 14.4°C | 29.4°C | 10.3°C | 48 mm | 72% | 3.6 m/s | 3.5 |
| 2015 | 23.4°C | 18.1°C | 12.8°C | 28.5°C | 8.4°C | 89 mm | 68% | 3.7 m/s | 3.8 |
| 2014 | 25.1°C | 19.6°C | 14.2°C | 32.0°C | 9.8°C | 20 mm | 64% | 3 m/s | 4 |
| 2013 | 26.0°C | 21.1°C | 16.2°C | 32.6°C | 11.8°C | 22 mm | 67% | 2.6 m/s | 3.6 |
| 2012 | 24.4°C | 19.6°C | 14.8°C | 30.5°C | 9.3°C | 44 mm | 65% | 3.4 m/s | 3.7 |
| 2011 | 25.2°C | 20.0°C | 14.8°C | 31.7°C | 10.2°C | 71 mm | 63% | 3.5 m/s | 4.1 |
| 2010 | 23.9°C | 18.6°C | 13.2°C | 28.9°C | 8.6°C | 42 mm | 69% | 3.3 m/s | 4 |
| 2009 | 26.3°C | 19.9°C | 13.6°C | 31.5°C | 9.8°C | 2 mm | 61% | 3.6 m/s | 4.3 |
| 2008 | 22.2°C | 17.8°C | 13.4°C | 29.0°C | 9.9°C | 84 mm | 72% | 3.3 m/s | 3.8 |
| 2007 | 22.9°C | 18.0°C | 13.1°C | 32.9°C | 8.6°C | 77 mm | 71% | 3.3 m/s | 3.7 |
| 2006 ❄️ | 22.1°C | 17.0°C | 11.8°C | 27.9°C | 9.2°C | 31 mm | 70% | 3.3 m/s | 3.7 |
| 2005 | 22.3°C | 17.3°C | 12.3°C | 29.6°C | 8.8°C | 76 mm | 73% | 3.3 m/s | 3.8 |
| 2004 | 24.6°C | 19.3°C | 14.0°C | 30.4°C | 9.2°C | 22 mm | 65% | 3.1 m/s | 3.8 |
| 2003 | 24.3°C | 19.4°C | 14.5°C | 31.2°C | 9.5°C | 52 mm | 70% | 3.2 m/s | 3.7 |
| 2002 | 23.3°C | 18.4°C | 13.4°C | 27.8°C | 8.0°C | 70 mm | 70% | 3.3 m/s | 3.9 |
| 2001 | 24.8°C | 19.5°C | 14.1°C | 30.9°C | 8.6°C | 5 mm | 63% | 3.2 m/s | 4 |
| 2000 | 24.4°C | 19.5°C | 14.6°C | 29.6°C | 9.9°C | 46 mm | 61% | 3.6 m/s | 4.1 |
| 1999 🔥 | 27.2°C | 21.4°C | 15.7°C | 33.2°C | 11.5°C | 10 mm | 60% | 3.5 m/s | 4.1 |
| 1998 | 24.3°C | 19.0°C | 13.7°C | 33.1°C | 9.2°C | 21 mm | 66% | 3.7 m/s | 3.6 |
| 1997 | 25.2°C | 20.1°C | 15.0°C | 30.4°C | 9.2°C | 29 mm | 67% | 3.3 m/s | 3.8 |
| 1996 | 24.5°C | 19.3°C | 14.2°C | 30.5°C | 11.0°C | 17 mm | 60% | 3.2 m/s | 3.8 |
| 1995 | 24.4°C | 18.9°C | 13.4°C | 29.4°C | 9.8°C | 19 mm | 64% | 3.3 m/s | 4.2 |
| 1994 | 25.7°C | 20.0°C | 14.3°C | 30.3°C | 9.9°C | 8 mm | 64% | 3.1 m/s | 4.3 |
| 1993 | 22.3°C | 17.3°C | 12.3°C | 27.1°C | 7.7°C | 32 mm | 74% | 3.2 m/s | 4.1 |
| 1992 | 24.1°C | 18.9°C | 13.8°C | 27.4°C | 10.0°C | 31 mm | 68% | 3.8 m/s | 4 |
| 1991 | 25.5°C | 19.8°C | 14.2°C | 34.0°C | 9.2°C | 38 mm | 62% | 3.4 m/s | 4 |
| 1990 🌧️ | 22.2°C | 17.9°C | 13.7°C | 30.8°C | 10.4°C | 110 mm | 69% | 3.7 m/s | 3.6 |
| 1989 | 24.1°C | 18.6°C | 13.2°C | 29.8°C | 9.6°C | 47 mm | 67% | 4 m/s | 3.9 |
| 1988 | 25.6°C | 20.3°C | 15.1°C | 31.8°C | 10.1°C | 41 mm | 62% | 3.4 m/s | 3.8 |
| 1987 | 23.4°C | 18.7°C | 14.0°C | 30.4°C | 8.9°C | 100 mm | 69% | 3.4 m/s | 3.7 |
| 1986 | 23.9°C | 17.9°C | 11.8°C | 29.8°C | 7.8°C | 8 mm | 61% | 3.5 m/s | 4.1 |
| 1985 | 23.0°C | 17.9°C | 12.9°C | 28.4°C | 7.2°C | 96 mm | 67% | 3.9 m/s | 4.1 |
| 1984 | 25.2°C | 19.3°C | 13.4°C | 31.8°C | 6.7°C | 61 mm | 60% | 3.6 m/s | 4.1 |
| 1983 | 24.2°C | 18.9°C | 13.6°C | 28.8°C | 8.6°C | 15 mm | 64% | 3.2 m/s | — |
| 1982 | 23.9°C | 17.7°C | 11.6°C | 29.2°C | 6.5°C | 8 mm | 63% | 3.3 m/s | — |
| 1981 | 25.0°C | 19.6°C | 14.3°C | 31.3°C | 10.9°C | 41 mm | 71% | 3 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 24.3°C with lows near 13.8°C (mean 19.1°C), based on 45 years of NASA POWER data.
April averages 41 mm of rainfall in Busselton, one of the drier months. The wettest on record was 110 mm in 1990.
The hottest April reached 34°C in 1991. The coldest dipped to 6.5°C in 1982.
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 24.3°C to 24.8°C and overnight lows from 13.2°C to 13.9°C over the same span.
April is one of the warmer months of the year in Busselton and one of the drier months, so plan for around 24.3°C daytime highs and 13.8°C at night.
Not quite — April is the 8th coolest month in Busselton, averaging 19.1°C.
For April in Busselton, pack light layers you can adjust through the day, with typical highs of 24.3°C and lows of 13.8°C.
Relative humidity in April averages 66% — moderately humid.
Average wind speed in April is 3.4 m/s. The windiest April on record averaged 4 m/s (1989).
The wettest April on record was 1990 with 110 mm. On average, April sees 41 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 Busselton 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.
