April is one of the warmer months of the year in Gawler, with average highs near 23.8°C and lows around 11.1°C (mean 17.5°C). It is about average for rainfall, averaging 30 mm of rainfall and 60% relative humidity across the period.
April is one of the warmer months of the year in Gawler. Across 45 years of records, the warmest April in Gawler was 2018 — when the month averaged 20.7°C — while the coldest was 1983 at 14.5°C. Typical April days reach 23.8°C with nights near 11.1°C. The long-term trend is warming, about 0.3°C per decade.
April is about average for rainfall in Gawler, averaging 30 mm of rainfall. The wettest April on record was 2007 with 100 mm, while the driest were 1993 and 1997 at 2 mm.
Relative humidity in Gawler during April averages 60%. The most humid April was 2020 at 69%, and the least humid was 1993 at 48%.
April receives about 4.2 kWh/m²/day of solar energy in Gawler. The sunniest Aprils were 1999, 2005 and 2018, among others at 4.5 kWh/m²/day, and the cloudiest were 2006 and 2015 at 3.7.
Average wind speed in Gawler during April is 2.6 m/s. The windiest April was 1986 at 3.3 m/s, while the calmest was 1999 at 2.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.0°C | 16.7°C | 17.8°C | 18.1°C | 17.8°C | +0.8°C |
| Avg High | 23.4°C | 23.0°C | 24.3°C | 24.4°C | 23.9°C | +0.5°C |
| Avg Low | 10.5°C | 10.5°C | 11.2°C | 11.8°C | 11.7°C | +1.2°C |
| Avg Rain | 33 mm | 24 mm | 37 mm | 28 mm | 25 mm | -9 mm |
April temperatures in Gawler have risen by about 1.3°C between 1981–1985 and 2021–2025.
April has ranged from a record low of 2.4°C (1983) to a record high of 38.1°C (2005).
Rainfall in April is about average for rainfall, averaging 30 mm, with a wettest year of 100 mm.
A good time to visit Gawler
April is a good time to visit Gawler, with days averaging 23.8°C and nights around 11.1°C (mean 17.5°C, close to Gawler's yearly average) and low rainfall. December and March 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 | 26.3°C | 20.1°C | 13.9°C | 34.6°C | 8.8°C | 7 mm | 54% | 2.4 m/s | 4.2 |
| 2024 | 22.2°C | 16.0°C | 9.7°C | 26.9°C | 6.2°C | 9 mm | 66% | 2.4 m/s | 4.1 |
| 2023 | 23.4°C | 17.4°C | 11.4°C | 30.6°C | 7.8°C | 35 mm | 61% | 2.8 m/s | 4.1 |
| 2022 | 25.2°C | 18.9°C | 12.7°C | 31.5°C | 7.3°C | 11 mm | 58% | 2.7 m/s | 3.8 |
| 2021 | 24.6°C | 18.0°C | 11.4°C | 34.2°C | 4.5°C | 9 mm | 56% | 2.3 m/s | 4.3 |
| 2020 | 21.5°C | 16.1°C | 10.8°C | 28.2°C | 6.1°C | 77 mm | 69% | 2.8 m/s | 3.9 |
| 2019 | 26.0°C | 19.1°C | 12.3°C | 35.0°C | 6.8°C | 5 mm | 49% | 2.9 m/s | 4.3 |
| 2018 🔥 | 27.6°C | 20.7°C | 13.8°C | 37.2°C | 8.4°C | 15 mm | 52% | 2.7 m/s | 4.5 |
| 2017 | 24.3°C | 18.2°C | 12.2°C | 32.8°C | 7.6°C | 27 mm | 59% | 2.6 m/s | 4 |
| 2016 | 25.7°C | 18.8°C | 11.9°C | 31.1°C | 7.4°C | 3 mm | 56% | 2.6 m/s | 4.2 |
| 2015 | 21.0°C | 15.3°C | 9.6°C | 29.8°C | 3.4°C | 64 mm | 67% | 2.6 m/s | 3.7 |
| 2014 | 23.2°C | 17.3°C | 11.4°C | 35.0°C | 6.7°C | 57 mm | 67% | 2.5 m/s | 4 |
| 2013 | 24.4°C | 18.1°C | 11.8°C | 32.0°C | 7.0°C | 35 mm | 58% | 2.3 m/s | 4.1 |
| 2012 | 24.7°C | 18.3°C | 12.0°C | 34.2°C | 6.1°C | 17 mm | 57% | 2.4 m/s | 4.2 |
| 2011 | 22.9°C | 16.7°C | 10.5°C | 30.3°C | 6.9°C | 14 mm | 66% | 2.5 m/s | 4.3 |
| 2010 | 24.6°C | 18.5°C | 12.4°C | 31.3°C | 6.2°C | 41 mm | 64% | 2.3 m/s | 4 |
| 2009 | 23.7°C | 17.6°C | 11.5°C | 35.6°C | 7.9°C | 58 mm | 59% | 2.9 m/s | 4.2 |
| 2008 | 23.1°C | 16.8°C | 10.5°C | 30.1°C | 6.6°C | 41 mm | 57% | 2.7 m/s | 4.1 |
| 2007 🌧️ | 24.8°C | 18.5°C | 12.2°C | 32.4°C | 7.1°C | 100 mm | 60% | 2.8 m/s | 4.3 |
| 2006 | 20.7°C | 15.4°C | 10.1°C | 26.1°C | 5.4°C | 41 mm | 66% | 3.1 m/s | 3.7 |
| 2005 | 27.2°C | 19.9°C | 12.6°C | 38.1°C | 6.2°C | 11 mm | 49% | 2.8 m/s | 4.5 |
| 2004 | 24.9°C | 18.4°C | 11.9°C | 35.4°C | 6.6°C | 11 mm | 57% | 2.6 m/s | 3.9 |
| 2003 | 24.3°C | 17.4°C | 10.5°C | 30.1°C | 5.4°C | 27 mm | 58% | 2.6 m/s | 4.2 |
| 2002 | 26.7°C | 19.4°C | 12.1°C | 32.9°C | 7.2°C | 7 mm | 50% | 2.4 m/s | 4.2 |
| 2001 | 23.7°C | 16.9°C | 10.1°C | 33.0°C | 5.3°C | 19 mm | 58% | 2.6 m/s | 4.4 |
| 2000 | 23.6°C | 17.3°C | 10.9°C | 28.7°C | 5.7°C | 54 mm | 66% | 2.8 m/s | 4.2 |
| 1999 | 22.4°C | 15.5°C | 8.7°C | 28.7°C | 3.9°C | 6 mm | 62% | 2.2 m/s | 4.5 |
| 1998 | 21.6°C | 15.4°C | 9.2°C | 32.7°C | 6.7°C | 70 mm | 64% | 2.6 m/s | 4 |
| 1997 | 24.8°C | 18.0°C | 11.2°C | 30.1°C | 5.4°C | 2 mm | 57% | 2.4 m/s | 4.2 |
| 1996 | 20.8°C | 15.3°C | 9.7°C | 30.8°C | 5.1°C | 19 mm | 67% | 2.8 m/s | 3.8 |
| 1995 | 20.5°C | 14.9°C | 9.3°C | 27.8°C | 6.4°C | 45 mm | 66% | 2.8 m/s | 4 |
| 1994 | 24.0°C | 17.7°C | 11.5°C | 30.9°C | 8.2°C | 8 mm | 56% | 2.6 m/s | 4.3 |
| 1993 | 25.9°C | 18.9°C | 12.0°C | 34.2°C | 8.3°C | 2 mm | 48% | 2.4 m/s | 4.5 |
| 1992 | 22.7°C | 17.0°C | 11.2°C | 34.6°C | 5.7°C | 49 mm | 65% | 2.4 m/s | 4 |
| 1991 | 23.3°C | 17.0°C | 10.8°C | 33.3°C | 4.5°C | 30 mm | 62% | 2.5 m/s | 4.2 |
| 1990 | 23.8°C | 17.3°C | 10.9°C | 31.6°C | 7.5°C | 12 mm | 62% | 3.1 m/s | 4.4 |
| 1989 | 23.8°C | 17.5°C | 11.2°C | 32.9°C | 7.1°C | 20 mm | 64% | 2.5 m/s | 4.2 |
| 1988 | 24.3°C | 17.3°C | 10.4°C | 28.3°C | 6.0°C | 12 mm | 63% | 2.7 m/s | 4.3 |
| 1987 | 24.5°C | 17.7°C | 10.9°C | 34.1°C | 4.9°C | 20 mm | 53% | 2.7 m/s | 4.2 |
| 1986 | 22.9°C | 16.6°C | 10.2°C | 37.4°C | 4.5°C | 40 mm | 60% | 3.3 m/s | 4.2 |
| 1985 | 23.3°C | 17.0°C | 10.7°C | 34.3°C | 6.1°C | 36 mm | 60% | 2.7 m/s | 4.3 |
| 1984 | 22.7°C | 16.2°C | 9.6°C | 29.2°C | 6.4°C | 31 mm | 65% | 2.5 m/s | 4.1 |
| 1983 ❄️ | 19.8°C | 14.5°C | 9.1°C | 27.2°C | 2.4°C | 80 mm | 67% | 3.1 m/s | — |
| 1982 | 23.4°C | 17.3°C | 11.1°C | 31.9°C | 6.5°C | 55 mm | 59% | 2.5 m/s | — |
| 1981 | 26.2°C | 18.9°C | 11.6°C | 33.2°C | 5.7°C | 6 mm | 57% | 2.5 m/s | — |
Actual recorded April data for each year, 1981–2025 — sourced from NASA POWER.
The average high in April is around 23.8°C with lows near 11.1°C (mean 17.5°C), based on 45 years of NASA POWER data.
April averages 30 mm of rainfall in Gawler, about average for rainfall. The wettest on record was 100 mm in 2007.
The hottest April reached 38.1°C in 2005. The coldest dipped to 2.4°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average April temperatures have risen by about 1.3°C. Daytime highs moved from 23.1°C to 24.3°C and overnight lows from 10.4°C to 11.8°C over the same span.
April is one of the warmer months of the year in Gawler and about average for rainfall, so plan for around 23.8°C daytime highs and 11.1°C at night.
Not quite — April is the 7th coolest month in Gawler, averaging 17.5°C.
For April in Gawler, pack light layers you can adjust through the day, with typical highs of 23.8°C and lows of 11.1°C.
Relative humidity in April averages 60% — moderately humid.
Average wind speed in April is 2.6 m/s. The windiest April on record averaged 3.3 m/s (1986).
The wettest April on record was 2007 with 100 mm. On average, April sees 30 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 Gawler 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.
