April is one of the warmer months of the year in Mount Gambier, with average highs near 18.6°C and lows around 12.3°C (mean 15.5°C). It is one of the drier months, averaging 47 mm of rainfall and 74% relative humidity across the period.
April is one of the warmer months of the year in Mount Gambier. Across 45 years of records, the warmest April in Mount Gambier was 2025 — when the month averaged 17°C — while the coldest was 1983 at 13°C. Typical April days reach 18.6°C with nights near 12.3°C. The long-term trend is warming, about 0.2°C per decade.
April is one of the drier months in Mount Gambier, averaging 47 mm of rainfall. The wettest April on record was 1992 with 104 mm, while the driest was 1993 at 7 mm.
Relative humidity in Mount Gambier during April averages 74%. The most humid April was 2011 at 80%, and the least humid was 2019 at 68%.
April receives about 3.4 kWh/m²/day of solar energy in Mount Gambier. The sunniest April was 1993 at 4 kWh/m²/day, and the cloudiest were 2006 and 2020 at 3.
Average wind speed in Mount Gambier during April is 3.5 m/s. The windiest Aprils were 1986 and 1995 at 4.2 m/s, while the calmest was 2002 at 2.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 15.3°C | 15.0°C | 15.5°C | 15.7°C | 15.6°C | +0.3°C |
| Avg High | 18.6°C | 18.0°C | 18.8°C | 18.9°C | 18.5°C | -0.1°C |
| Avg Low | 12.1°C | 11.9°C | 12.2°C | 12.6°C | 12.8°C | +0.7°C |
| Avg Rain | 50 mm | 46 mm | 51 mm | 47 mm | 38 mm | -12 mm |
April temperatures in Mount Gambier have risen by about 0.8°C between 1981–1985 and 2021–2025.
April has ranged from a record low of 6.7°C (2009) to a record high of 29.4°C (1992).
Rainfall in April is one of the drier months, averaging 47 mm, with a wettest year of 104 mm.
A good time to visit Mount Gambier
April is a good time to visit Mount Gambier, with days averaging 18.6°C and nights around 12.3°C (mean 15.5°C, warmer than Mount Gambier's yearly average) and moderate rainfall. February 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 🔥 | 20.1°C | 17.0°C | 13.9°C | 28.9°C | 10.9°C | 26 mm | 74% | 3.3 m/s | 3.5 |
| 2024 | 17.0°C | 14.5°C | 12.0°C | 20.3°C | 8.5°C | 47 mm | 77% | 3.2 m/s | 3.1 |
| 2023 | 18.6°C | 15.8°C | 13.0°C | 24.9°C | 11.1°C | 46 mm | 78% | 3.4 m/s | 3.4 |
| 2022 | 19.6°C | 16.3°C | 13.1°C | 23.9°C | 10.2°C | 12 mm | 75% | 3.2 m/s | 3.3 |
| 2021 | 18.5°C | 15.6°C | 12.7°C | 27.5°C | 9.4°C | 29 mm | 74% | 3.6 m/s | 3.5 |
| 2020 | 17.1°C | 14.5°C | 12.0°C | 21.8°C | 9.1°C | 69 mm | 78% | 4 m/s | 3 |
| 2019 | 19.6°C | 16.0°C | 12.4°C | 27.7°C | 8.4°C | 11 mm | 68% | 3.6 m/s | 3.1 |
| 2018 | 20.2°C | 16.7°C | 13.2°C | 26.1°C | 10.1°C | 25 mm | 73% | 3.2 m/s | 3.8 |
| 2017 | 19.0°C | 15.9°C | 12.9°C | 25.9°C | 10.5°C | 86 mm | 75% | 3.1 m/s | 3.3 |
| 2016 | 19.3°C | 16.1°C | 12.9°C | 25.8°C | 9.4°C | 23 mm | 72% | 3.2 m/s | 3.4 |
| 2015 | 16.9°C | 14.1°C | 11.3°C | 25.1°C | 9.1°C | 44 mm | 77% | 3.6 m/s | 3.1 |
| 2014 | 18.5°C | 15.5°C | 12.6°C | 28.5°C | 7.4°C | 59 mm | 76% | 3.5 m/s | 3.4 |
| 2013 | 18.8°C | 15.8°C | 12.8°C | 25.2°C | 8.9°C | 39 mm | 73% | 3.6 m/s | 3.5 |
| 2012 | 19.8°C | 16.3°C | 12.7°C | 27.2°C | 9.6°C | 40 mm | 73% | 3.7 m/s | 3.7 |
| 2011 | 18.1°C | 15.0°C | 11.9°C | 24.3°C | 8.2°C | 65 mm | 80% | 3.2 m/s | 3.4 |
| 2010 | 18.8°C | 16.0°C | 13.2°C | 23.6°C | 9.0°C | 76 mm | 78% | 3.2 m/s | 3.2 |
| 2009 | 18.3°C | 15.2°C | 12.1°C | 28.7°C | 6.7°C | 77 mm | 73% | 3.7 m/s | 3.5 |
| 2008 | 18.9°C | 15.3°C | 11.6°C | 24.8°C | 9.2°C | 48 mm | 74% | 3.4 m/s | 3.6 |
| 2007 | 20.1°C | 16.6°C | 13.0°C | 27.3°C | 10.9°C | 50 mm | 74% | 3.1 m/s | 3.6 |
| 2006 | 16.8°C | 14.3°C | 11.7°C | 21.5°C | 8.9°C | 81 mm | 72% | 4.1 m/s | 3 |
| 2005 | 20.1°C | 16.3°C | 12.6°C | 29.0°C | 9.9°C | 34 mm | 72% | 3.3 m/s | 3.8 |
| 2004 | 17.7°C | 14.9°C | 12.0°C | 23.1°C | 10.0°C | 51 mm | 77% | 3.4 m/s | 3.4 |
| 2003 | 19.0°C | 15.4°C | 11.9°C | 23.5°C | 9.2°C | 29 mm | 77% | 3.3 m/s | 3.7 |
| 2002 | 19.8°C | 16.1°C | 12.4°C | 26.1°C | 8.5°C | 23 mm | 75% | 2.7 m/s | 3.6 |
| 2001 | 18.1°C | 15.0°C | 11.9°C | 26.5°C | 8.5°C | 33 mm | 74% | 3.6 m/s | 3.5 |
| 2000 | 19.3°C | 15.9°C | 12.4°C | 25.6°C | 7.6°C | 84 mm | 74% | 3.4 m/s | 3.6 |
| 1999 | 17.5°C | 14.4°C | 11.3°C | 24.3°C | 6.8°C | 20 mm | 75% | 3 m/s | 3.5 |
| 1998 | 17.3°C | 14.5°C | 11.6°C | 26.5°C | 9.1°C | 73 mm | 75% | 3.4 m/s | 3.1 |
| 1997 | 18.5°C | 15.0°C | 11.5°C | 24.5°C | 7.4°C | 16 mm | 75% | 3.3 m/s | 3.3 |
| 1996 | 16.6°C | 14.3°C | 12.0°C | 20.3°C | 9.1°C | 44 mm | 75% | 4 m/s | 3.2 |
| 1995 | 16.6°C | 13.6°C | 10.6°C | 23.1°C | 8.7°C | 97 mm | 75% | 4.2 m/s | 3.3 |
| 1994 | 18.4°C | 15.4°C | 12.4°C | 26.2°C | 9.4°C | 28 mm | 75% | 3.6 m/s | 3.5 |
| 1993 | 19.8°C | 16.0°C | 12.2°C | 26.2°C | 8.6°C | 7 mm | 70% | 2.9 m/s | 4 |
| 1992 🌧️ | 18.2°C | 15.0°C | 11.8°C | 29.4°C | 8.7°C | 104 mm | 76% | 2.9 m/s | 3.4 |
| 1991 | 18.4°C | 15.3°C | 12.2°C | 28.6°C | 9.0°C | 38 mm | 73% | 3.4 m/s | 3.6 |
| 1990 | 19.0°C | 16.1°C | 13.2°C | 27.3°C | 11.1°C | 28 mm | 74% | 4.1 m/s | 3.7 |
| 1989 | 19.1°C | 16.1°C | 13.0°C | 27.0°C | 10.2°C | 58 mm | 77% | 3.4 m/s | 3.2 |
| 1988 | 19.5°C | 16.0°C | 12.6°C | 25.2°C | 8.7°C | 22 mm | 76% | 3.6 m/s | 3.5 |
| 1987 | 19.0°C | 15.4°C | 11.8°C | 27.8°C | 8.3°C | 36 mm | 71% | 3.1 m/s | 3.6 |
| 1986 | 18.2°C | 15.3°C | 12.4°C | 27.2°C | 10.6°C | 82 mm | 71% | 4.2 m/s | 3.4 |
| 1985 | 19.2°C | 15.6°C | 12.1°C | 26.1°C | 8.6°C | 51 mm | 74% | 3.4 m/s | 3.8 |
| 1984 | 18.2°C | 14.9°C | 11.7°C | 23.9°C | 8.9°C | 38 mm | 75% | 3.5 m/s | 3.6 |
| 1983 ❄️ | 16.0°C | 13.0°C | 10.1°C | 21.4°C | 7.1°C | 62 mm | 77% | 3.6 m/s | — |
| 1982 | 18.4°C | 15.3°C | 12.2°C | 25.2°C | 9.7°C | 72 mm | 72% | 3.4 m/s | — |
| 1981 | 20.0°C | 16.3°C | 12.6°C | 28.8°C | 7.4°C | 29 mm | 71% | 3.7 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 18.6°C with lows near 12.3°C (mean 15.5°C), based on 45 years of NASA POWER data.
April averages 47 mm of rainfall in Mount Gambier, one of the drier months. The wettest on record was 104 mm in 1992.
The hottest April reached 29.4°C in 1992. The coldest dipped to 6.7°C in 2009.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 0.8°C. Daytime highs moved from 18.4°C to 18.8°C and overnight lows from 11.7°C to 12.9°C over the same span.
April is one of the warmer months of the year in Mount Gambier and one of the drier months, so plan for around 18.6°C daytime highs and 12.3°C at night.
Not quite — April is the 8th coolest month in Mount Gambier, averaging 15.5°C.
For April in Mount Gambier, pack light layers you can adjust through the day, with typical highs of 18.6°C and lows of 12.3°C.
Relative humidity in April averages 74% — moderately humid.
Average wind speed in April is 3.5 m/s. The windiest April on record averaged 4.2 m/s (1986).
The wettest April on record was 1992 with 104 mm. On average, April sees 47 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 Mount Gambier 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.
