April is one of the warmer months of the year in Wallaroo, with average highs near 21.9°C and lows around 15.2°C (mean 18.5°C). It is about average for rainfall, averaging 23 mm of rainfall and 65% relative humidity across the period.
April is one of the warmer months of the year in Wallaroo. Across 45 years of records, the warmest April in Wallaroo was 2018 — when the month averaged 21.1°C — while the coldest were 1983 and 1995 at 16.5°C. Typical April days reach 21.9°C with nights near 15.2°C. The long-term trend is warming, about 0.3°C per decade.
April is about average for rainfall in Wallaroo, averaging 23 mm of rainfall. The wettest April on record was 1983 with 80 mm, while the driest was 1997 at 1 mm.
Relative humidity in Wallaroo during April averages 65%. The most humid April was 2020 at 69%, and the least humid was 2019 at 57%.
April receives about 4.4 kWh/m²/day of solar energy in Wallaroo. The sunniest Aprils were 1994, 2005 and 2018, among others at 4.7 kWh/m²/day, and the cloudiest were 2015, 2017 and 2020, among others at 4.
Average wind speed in Wallaroo during April is 4.4 m/s. The windiest April was 1986 at 5.6 m/s, while the calmest were 2002, 2010 and 2021, among others at 3.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.1°C | 17.9°C | 18.8°C | 19.1°C | 18.9°C | +0.8°C |
| Avg High | 21.6°C | 21.1°C | 22.3°C | 22.4°C | 22.1°C | +0.5°C |
| Avg Low | 14.7°C | 14.7°C | 15.3°C | 15.8°C | 15.8°C | +1.1°C |
| Avg Rain | 25 mm | 19 mm | 25 mm | 24 mm | 23 mm | -3 mm |
April temperatures in Wallaroo have risen by about 1°C between 1981–1985 and 2021–2025.
April has ranged from a record low of 9.2°C (1983) to a record high of 33.1°C (2018).
Rainfall in April is about average for rainfall, averaging 23 mm, with a wettest year of 80 mm.
A good time to visit Wallaroo
April is a good time to visit Wallaroo, with days averaging 21.9°C and nights around 15.2°C (mean 18.5°C, warmer than Wallaroo's yearly average) and low rainfall. March and January 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 | 23.9°C | 20.7°C | 17.5°C | 31.2°C | 14.3°C | 6 mm | 61% | 4 m/s | 4.3 |
| 2024 | 20.3°C | 17.4°C | 14.4°C | 24.4°C | 11.8°C | 12 mm | 67% | 4.5 m/s | 4.4 |
| 2023 | 21.8°C | 18.6°C | 15.4°C | 27.6°C | 13.4°C | 32 mm | 64% | 4.7 m/s | 4.3 |
| 2022 | 23.1°C | 19.7°C | 16.4°C | 27.4°C | 13.1°C | 20 mm | 65% | 4.4 m/s | 4.1 |
| 2021 | 22.5°C | 19.2°C | 15.9°C | 30.3°C | 12.4°C | 10 mm | 61% | 3.9 m/s | 4.5 |
| 2020 | 20.7°C | 17.8°C | 14.9°C | 26.1°C | 12.0°C | 57 mm | 69% | 4.6 m/s | 4 |
| 2019 | 23.3°C | 19.6°C | 16.0°C | 30.6°C | 12.8°C | 8 mm | 57% | 4.7 m/s | 4.4 |
| 2018 🔥 | 25.0°C | 21.1°C | 17.3°C | 33.1°C | 13.4°C | 12 mm | 61% | 4.5 m/s | 4.7 |
| 2017 | 22.1°C | 19.1°C | 16.0°C | 27.7°C | 13.1°C | 35 mm | 64% | 4 m/s | 4 |
| 2016 | 22.7°C | 19.3°C | 15.9°C | 26.7°C | 13.0°C | 12 mm | 65% | 4.2 m/s | 4.4 |
| 2015 | 19.7°C | 16.9°C | 14.1°C | 26.1°C | 10.1°C | 46 mm | 68% | 4.7 m/s | 4 |
| 2014 | 21.8°C | 18.8°C | 15.8°C | 31.2°C | 12.9°C | 41 mm | 69% | 4.4 m/s | 4.1 |
| 2013 | 22.6°C | 19.3°C | 15.9°C | 28.1°C | 12.4°C | 29 mm | 64% | 4.1 m/s | 4.3 |
| 2012 | 22.8°C | 19.5°C | 16.1°C | 31.0°C | 12.4°C | 17 mm | 62% | 4 m/s | 4.5 |
| 2011 | 21.4°C | 18.0°C | 14.6°C | 27.0°C | 12.6°C | 14 mm | 68% | 4.1 m/s | 4.5 |
| 2010 | 22.6°C | 19.6°C | 16.5°C | 27.5°C | 12.5°C | 24 mm | 66% | 3.9 m/s | 4.1 |
| 2009 | 21.9°C | 18.8°C | 15.8°C | 30.9°C | 13.6°C | 35 mm | 64% | 4.7 m/s | 4.4 |
| 2008 | 21.5°C | 18.1°C | 14.6°C | 26.8°C | 11.1°C | 33 mm | 62% | 4.6 m/s | 4.2 |
| 2007 | 22.6°C | 19.2°C | 15.8°C | 28.4°C | 12.8°C | 51 mm | 67% | 4.6 m/s | 4.4 |
| 2006 | 20.0°C | 17.2°C | 14.4°C | 25.6°C | 11.1°C | 32 mm | 68% | 5.2 m/s | 4 |
| 2005 | 24.2°C | 20.3°C | 16.4°C | 32.8°C | 12.3°C | 10 mm | 59% | 4.5 m/s | 4.7 |
| 2004 | 22.5°C | 19.2°C | 15.9°C | 30.6°C | 12.7°C | 16 mm | 64% | 4.2 m/s | 4.1 |
| 2003 | 22.3°C | 18.5°C | 14.6°C | 26.7°C | 11.5°C | 15 mm | 64% | 4.3 m/s | 4.3 |
| 2002 | 23.6°C | 19.7°C | 15.7°C | 28.0°C | 12.0°C | 7 mm | 61% | 3.9 m/s | 4.4 |
| 2001 | 21.7°C | 18.2°C | 14.6°C | 28.7°C | 10.8°C | 11 mm | 62% | 4.5 m/s | 4.5 |
| 2000 | 22.3°C | 18.8°C | 15.3°C | 26.9°C | 11.7°C | 38 mm | 68% | 4.5 m/s | 4.5 |
| 1999 | 20.5°C | 17.2°C | 13.8°C | 25.9°C | 10.8°C | 5 mm | 65% | 4 m/s | 4.6 |
| 1998 | 20.2°C | 17.1°C | 14.1°C | 30.0°C | 11.8°C | 59 mm | 66% | 4.7 m/s | 4 |
| 1997 | 21.9°C | 18.5°C | 15.2°C | 26.4°C | 11.2°C | 1 mm | 65% | 4 m/s | 4.4 |
| 1996 | 19.8°C | 17.1°C | 14.4°C | 29.4°C | 10.9°C | 11 mm | 67% | 4.8 m/s | 4.1 |
| 1995 | 19.4°C | 16.5°C | 13.7°C | 24.9°C | 11.5°C | 27 mm | 67% | 4.5 m/s | 4.3 |
| 1994 | 21.7°C | 18.5°C | 15.4°C | 28.0°C | 12.8°C | 5 mm | 63% | 4.3 m/s | 4.7 |
| 1993 | 22.9°C | 19.1°C | 15.2°C | 28.6°C | 12.8°C | 2 mm | 60% | 3.9 m/s | 4.6 |
| 1992 | 20.9°C | 18.1°C | 15.2°C | 30.2°C | 11.7°C | 48 mm | 67% | 4.1 m/s | 4.2 |
| 1991 | 21.7°C | 18.3°C | 15.0°C | 29.8°C | 10.0°C | 20 mm | 64% | 4.3 m/s | 4.5 |
| 1990 | 21.7°C | 18.4°C | 15.2°C | 27.6°C | 12.2°C | 11 mm | 67% | 5.5 m/s | 4.6 |
| 1989 | 21.4°C | 18.1°C | 14.8°C | 28.1°C | 12.6°C | 23 mm | 69% | 4.3 m/s | 4.5 |
| 1988 | 22.0°C | 18.4°C | 14.8°C | 25.0°C | 11.8°C | 6 mm | 68% | 4.7 m/s | 4.5 |
| 1987 | 22.1°C | 18.4°C | 14.7°C | 29.0°C | 11.0°C | 12 mm | 61% | 4.2 m/s | 4.4 |
| 1986 | 21.4°C | 18.0°C | 14.7°C | 32.2°C | 12.2°C | 21 mm | 63% | 5.6 m/s | 4.4 |
| 1985 | 21.7°C | 18.2°C | 14.7°C | 30.6°C | 11.8°C | 31 mm | 63% | 4.5 m/s | 4.7 |
| 1984 | 20.9°C | 17.6°C | 14.2°C | 26.4°C | 11.3°C | 23 mm | 66% | 4.4 m/s | 4.4 |
| 1983 ❄️ 🌧️ | 19.4°C | 16.5°C | 13.7°C | 23.1°C | 9.2°C | 80 mm | 68% | 5.3 m/s | — |
| 1982 | 21.7°C | 18.4°C | 15.1°C | 27.6°C | 12.6°C | 29 mm | 63% | 4.3 m/s | — |
| 1981 | 23.6°C | 19.6°C | 15.5°C | 28.8°C | 11.7°C | 3 mm | 63% | 4 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 21.9°C with lows near 15.2°C (mean 18.5°C), based on 45 years of NASA POWER data.
April averages 23 mm of rainfall in Wallaroo, about average for rainfall. The wettest on record was 80 mm in 1983.
The hottest April reached 33.1°C in 2018. The coldest dipped to 9.2°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1°C. Daytime highs moved from 21.5°C to 22.3°C and overnight lows from 14.6°C to 15.9°C over the same span.
April is one of the warmer months of the year in Wallaroo and about average for rainfall, so plan for around 21.9°C daytime highs and 15.2°C at night.
Not quite — April is the 7th coolest month in Wallaroo, averaging 18.5°C.
For April in Wallaroo, pack light layers you can adjust through the day, with typical highs of 21.9°C and lows of 15.2°C.
Relative humidity in April averages 65% — moderately humid.
Average wind speed in April is 4.4 m/s. The windiest April on record averaged 5.6 m/s (1986).
The wettest April on record was 1983 with 80 mm. On average, April sees 23 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 Wallaroo 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.
