April is close to Swan Hill's year-round average, with average highs near 23.9°C and lows around 10.5°C (mean 17.2°C). It is about average for rainfall, averaging 23 mm of rainfall and 58% relative humidity across the period.
April is close to Swan Hill's year-round average. Across 45 years of records, the warmest April in Swan Hill was 2018 — when the month averaged 20.2°C — while the coldest was 1983 at 14°C. Typical April days reach 23.9°C with nights near 10.5°C. The long-term trend is warming, about 0.2°C per decade.
April is about average for rainfall in Swan Hill, averaging 23 mm of rainfall. The wettest Aprils on record were 2014 and 2020 with 68 mm, while the driest were 1993, 1997 and 2019 at 1 mm.
Relative humidity in Swan Hill during April averages 58%. The most humid April was 1989 at 71%, and the least humid was 2005 at 45%.
April receives about 4.2 kWh/m²/day of solar energy in Swan Hill. The sunniest April was 1999 at 4.8 kWh/m²/day, and the cloudiest was 2022 at 3.6.
Average wind speed in Swan Hill during April is 2.7 m/s. The windiest April was 1990 at 3.4 m/s, while the calmest was 2002 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.1°C | 16.5°C | 17.6°C | 17.8°C | 17.2°C | +0.1°C |
| Avg High | 23.8°C | 23.3°C | 24.5°C | 24.3°C | 23.6°C | -0.2°C |
| Avg Low | 10.4°C | 9.7°C | 10.6°C | 11.2°C | 10.9°C | +0.5°C |
| Avg Rain | 22 mm | 21 mm | 20 mm | 24 mm | 31 mm | +9 mm |
April temperatures in Swan Hill have risen by about 1°C between 1981–1985 and 2021–2025.
April has ranged from a record low of 1.9°C (2009) to a record high of 38.7°C (2018).
Rainfall in April is about average for rainfall, averaging 23 mm, with a wettest year of 68 mm.
A good time to visit Swan Hill
April is a good time to visit Swan Hill, with days averaging 23.9°C and nights around 10.5°C (mean 17.2°C, close to Swan Hill's yearly average) and low 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 | 26.5°C | 20.1°C | 13.7°C | 33.1°C | 8.3°C | 19 mm | 53% | 2.6 m/s | 4.3 |
| 2024 | 22.7°C | 16.2°C | 9.8°C | 32.0°C | 5.5°C | 26 mm | 63% | 2.8 m/s | 4.1 |
| 2023 | 23.1°C | 16.9°C | 10.7°C | 29.6°C | 5.0°C | 26 mm | 64% | 2.8 m/s | 4 |
| 2022 | 24.1°C | 18.0°C | 12.0°C | 30.7°C | 7.5°C | 47 mm | 64% | 2.7 m/s | 3.6 |
| 2021 | 23.6°C | 16.6°C | 9.5°C | 33.4°C | 3.3°C | 2 mm | 58% | 2.4 m/s | 4.4 |
| 2020 | 21.5°C | 15.6°C | 9.7°C | 26.6°C | 6.4°C | 68 mm | 67% | 2.9 m/s | 3.8 |
| 2019 | 25.6°C | 18.8°C | 12.0°C | 33.6°C | 5.6°C | 1 mm | 48% | 2.6 m/s | 4.2 |
| 2018 🔥 | 27.7°C | 20.2°C | 12.7°C | 38.7°C | 7.3°C | 4 mm | 47% | 2.7 m/s | 4.5 |
| 2017 | 23.9°C | 17.4°C | 10.9°C | 30.3°C | 6.4°C | 35 mm | 61% | 2.9 m/s | 4.1 |
| 2016 | 25.7°C | 18.9°C | 12.0°C | 31.5°C | 7.6°C | 17 mm | 50% | 2.7 m/s | 4.2 |
| 2015 | 22.4°C | 16.1°C | 9.8°C | 32.5°C | 5.8°C | 34 mm | 60% | 3 m/s | 3.9 |
| 2014 🌧️ | 23.2°C | 17.3°C | 11.5°C | 33.4°C | 5.6°C | 68 mm | 65% | 2.7 m/s | 3.7 |
| 2013 | 24.4°C | 18.0°C | 11.7°C | 31.0°C | 5.7°C | 7 mm | 55% | 2.5 m/s | 4.2 |
| 2012 | 23.5°C | 16.9°C | 10.3°C | 33.1°C | 4.5°C | 9 mm | 64% | 2.4 m/s | 4.4 |
| 2011 | 22.6°C | 16.1°C | 9.5°C | 28.2°C | 6.1°C | 23 mm | 69% | 2.6 m/s | 4.3 |
| 2010 | 24.0°C | 17.8°C | 11.6°C | 29.5°C | 5.5°C | 38 mm | 67% | 2.7 m/s | 4 |
| 2009 | 23.3°C | 16.7°C | 10.0°C | 32.9°C | 1.9°C | 26 mm | 54% | 2.7 m/s | 4.4 |
| 2008 | 23.2°C | 16.4°C | 9.6°C | 30.9°C | 3.1°C | 9 mm | 54% | 2.6 m/s | 4.2 |
| 2007 | 25.6°C | 18.7°C | 11.8°C | 30.8°C | 8.7°C | 42 mm | 53% | 2.6 m/s | 4.4 |
| 2006 | 21.5°C | 15.0°C | 8.5°C | 29.4°C | 4.1°C | 29 mm | 57% | 2.9 m/s | 4.1 |
| 2005 | 27.8°C | 20.1°C | 12.4°C | 36.3°C | 7.5°C | 5 mm | 45% | 2.8 m/s | 4.6 |
| 2004 | 25.2°C | 18.1°C | 11.0°C | 35.1°C | 5.1°C | 5 mm | 51% | 2.8 m/s | 4.4 |
| 2003 | 24.8°C | 17.7°C | 10.7°C | 30.7°C | 6.0°C | 21 mm | 57% | 2.6 m/s | 4.3 |
| 2002 | 26.1°C | 18.8°C | 11.6°C | 32.2°C | 5.9°C | 8 mm | 57% | 2.3 m/s | 4.3 |
| 2001 | 23.7°C | 16.8°C | 9.9°C | 31.7°C | 5.3°C | 15 mm | 55% | 2.7 m/s | 4.3 |
| 2000 | 24.0°C | 17.4°C | 10.8°C | 29.7°C | 5.1°C | 42 mm | 61% | 2.7 m/s | 4.3 |
| 1999 | 22.7°C | 15.6°C | 8.6°C | 28.0°C | 3.9°C | 8 mm | 59% | 2.6 m/s | 4.8 |
| 1998 | 22.3°C | 15.6°C | 8.9°C | 31.5°C | 5.0°C | 46 mm | 58% | 2.7 m/s | 4.2 |
| 1997 | 24.8°C | 17.3°C | 9.7°C | 31.3°C | 5.7°C | 1 mm | 48% | 2.5 m/s | 4.5 |
| 1996 | 21.3°C | 15.0°C | 8.8°C | 29.7°C | 4.9°C | 15 mm | 64% | 3 m/s | 4 |
| 1995 | 20.7°C | 14.3°C | 8.0°C | 27.8°C | 5.0°C | 34 mm | 60% | 3.1 m/s | 4.1 |
| 1994 | 24.3°C | 17.2°C | 10.2°C | 30.5°C | 4.8°C | 2 mm | 52% | 2.9 m/s | 4.5 |
| 1993 | 26.2°C | 18.6°C | 11.0°C | 32.0°C | 6.9°C | 1 mm | 48% | 2.5 m/s | 4.7 |
| 1992 | 24.0°C | 17.3°C | 10.7°C | 33.4°C | 3.0°C | 15 mm | 55% | 2.9 m/s | 4.3 |
| 1991 | 22.8°C | 16.2°C | 9.7°C | 29.6°C | 3.8°C | 32 mm | 57% | 2.5 m/s | 4.3 |
| 1990 | 23.6°C | 17.6°C | 11.6°C | 32.1°C | 6.0°C | 54 mm | 63% | 3.4 m/s | 4.2 |
| 1989 | 23.3°C | 17.2°C | 11.2°C | 29.2°C | 7.2°C | 51 mm | 71% | 2.4 m/s | 4 |
| 1988 | 25.3°C | 18.5°C | 11.6°C | 30.2°C | 6.9°C | 27 mm | 59% | 2.9 m/s | 4.3 |
| 1987 | 25.2°C | 18.0°C | 10.9°C | 34.4°C | 4.1°C | 21 mm | 51% | 2.7 m/s | 4.4 |
| 1986 | 23.9°C | 17.1°C | 10.2°C | 37.0°C | 4.3°C | 28 mm | 53% | 3.3 m/s | 4.3 |
| 1985 | 24.5°C | 18.0°C | 11.6°C | 36.0°C | 5.7°C | 11 mm | 56% | 2.9 m/s | 4.3 |
| 1984 | 23.5°C | 16.6°C | 9.8°C | 29.5°C | 6.4°C | 15 mm | 57% | 2.7 m/s | 4.3 |
| 1983 ❄️ | 20.0°C | 14.0°C | 8.0°C | 25.2°C | 3.1°C | 30 mm | 68% | 2.7 m/s | — |
| 1982 | 23.9°C | 16.8°C | 9.8°C | 31.7°C | 4.1°C | 14 mm | 53% | 2.7 m/s | — |
| 1981 | 24.7°C | 17.6°C | 10.6°C | 31.2°C | 3.6°C | 3 mm | 61% | 2.6 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 23.9°C with lows near 10.5°C (mean 17.2°C), based on 45 years of NASA POWER data.
April averages 23 mm of rainfall in Swan Hill, about average for rainfall. The wettest on record was 68 mm in 2014.
The hottest April reached 38.7°C in 2018. The coldest dipped to 1.9°C in 2009.
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 23.3°C to 24°C and overnight lows from 10°C to 11.1°C over the same span.
April is close to Swan Hill's year-round average and about average for rainfall, so plan for around 23.9°C daytime highs and 10.5°C at night.
Not quite — April is the 7th coolest month in Swan Hill, averaging 17.2°C.
For April in Swan Hill, pack light layers you can adjust through the day, with typical highs of 23.9°C and lows of 10.5°C.
Relative humidity in April averages 58% — moderately humid.
Average wind speed in April is 2.7 m/s. The windiest April on record averaged 3.4 m/s (1990).
The wettest April on record was 2014 with 68 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 Swan Hill 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.
