Heckenberg climate
Typical historical weather for Heckenberg, Australia, averaged across 10 years of hourly climate data. Pick a date for a specific day.
Want today's actual conditions instead? See the current forecast for Heckenberg. Planning a garden? See the gardening & growing season planner. Or browse the 365-day climate calendar.
Annual average
17.8°C
across all months
Warmest month
27°C
Jan average high
Coolest month
8.1°C
Jul average low
Annual rainfall
890mm
total per year
Heckenberg is typically hottest in January and coolest in July, a swing of about 18.9°C across the year. About 37% of annual rainfall falls in the three wettest months (March is typically wettest, September driest).
Monthly averages
Average daily high/low temperature (band) and monthly rainfall (bars).
| Month | Avg high | Avg low | Rainfall | Wet days | Humidity | Wind | Cloud | Solar |
|---|---|---|---|---|---|---|---|---|
| Jan | 27°C · record 29.5–42.4°C | 19.7°C · record 13.7–18.6°C | 87mm | 13 | 76% | 3.4 m/s | 62% | 6.1 kWh/m² |
| Feb | 26.5°C · record 30–41.1°C | 19.3°C · record 13.4–16.5°C | 101mm | 13 | 75% | 3.3 m/s | 55% | 5.7 kWh/m² |
| Mar | 25.2°C · record 27.4–38.2°C | 18.3°C · record 11.5–15°C | 138mm | 17 | 78% | 3.2 m/s | 59% | 4.5 kWh/m² |
| Apr | 23°C · record 26.1–33.5°C | 14.6°C · record 8.1–12.9°C | 69mm | 10 | 77% | 2.7 m/s | 45% | 3.9 kWh/m² |
| May | 19.9°C · record 22.3–26.9°C | 11.2°C · record 4.4–8.9°C | 62mm | 9 | 76% | 2.9 m/s | 42% | 3 kWh/m² |
| Jun | 17.1°C · record 18.8–22.2°C | 8.8°C · record 3.5–5.5°C | 60mm | 8 | 76% | 3.1 m/s | 43% | 2.5 kWh/m² |
| Jul | 17.3°C · record 20.5–25.2°C | 8.1°C · record 1.5–5.4°C | 66mm | 6 | 72% | 3.2 m/s | 36% | 2.8 kWh/m² |
| Aug | 18.1°C · record 22–28.4°C | 8.7°C · record 3.3–5.8°C | 55mm | 8 | 69% | 3.2 m/s | 38% | 3.7 kWh/m² |
| Sep | 20.7°C · record 22.6–32.6°C | 10.6°C · record 5.1–7.7°C | 49mm | 7 | 67% | 3.2 m/s | 38% | 5 kWh/m² |
| Oct | 22.5°C · record 26.1–35.2°C | 13.4°C · record 7.9–10.7°C | 67mm | 11 | 70% | 3.2 m/s | 52% | 5.7 kWh/m² |
| Nov | 23.9°C · record 26.2–38.9°C | 15.7°C · record 8.5–14°C | 71mm | 11 | 71% | 3.3 m/s | 55% | 6.5 kWh/m² |
| Dec | 26.2°C · record 29.6–39.5°C | 17.9°C · record 11.7–16°C | 65mm | 11 | 71% | 3.3 m/s | 55% | 6.7 kWh/m² |
"Avg high"/"Avg low" is the mean daily high/low for that month, averaged across every year on file. The "record" figure alongside it is a different statistic — the single hottest (or coldest) hour ever recorded during that month across all years — so it can sit above or below the average and does not describe the average's year-to-year spread. A "wet day" is any day with at least 1.0mm of rain.
Year to year
Annual average temperature, 2016–2025.
Across these 10 years, the annual average has moved by about -0.26°C per decade. That’s a short window for a reliable long-term climate trend — treat it as indicative, not definitive.
Annual rainfall has moved by about +280.98mm per decade over the same period.
2025 (the most recent year on file) averaged 18.06702401496506°C, above the 9-year baseline of 17.72°C by 0.86 standard deviations.
Typical extremes per year
Rainy days
124.1 days
≥1.0mm rain
Heavy rain days
8.7 days
≥20mm rain
Extreme heat days
0.4 days
daily high ≥40°C
Frost days
0 days
daily low ≤0°C
Averaged across 10 years on file. Thresholds match PastClimate's data pipeline definitions — see data & sources.
Records on file
Ranked across 10 years of data currently on file (2016–2025).
Hottest day
42.4°C
7 January 2018
2018 was 0.19 SD above the 9-year average that year
Coldest day
1.5°C
16 July 2018
2018 was 0.19 SD above the 9-year average that year
Wettest day
145.6mm
9 February 2020
2020 was 0.39 SD below the 9-year average that year
Windiest day
9.7m/s
17 January 2025
2025 was 0.86 SD above the 9-year average that year
See the detail: Heckenberg on 9 February 2020.
Nearby cities
Bankstown
Same ERA5 grid cell
Liverpool
Same ERA5 grid cell
Hurstville
Same ERA5 grid cell
Strathfield
Same ERA5 grid cell
Campsie
Same ERA5 grid cell
Greenacre
Same ERA5 grid cell
Want a side-by-side view instead? Compare Heckenberg with another city.
Frequently asked questions about Heckenberg's climate
What is the hottest month in Heckenberg?
January is typically the warmest month in Heckenberg, with an average high of 27°C. July is typically the coolest, averaging 8.1°C overnight.
How much does it rain in Heckenberg?
Heckenberg gets about 890mm of rain a year on average, with roughly 37% of it falling in the three wettest months (March is typically the wettest, September the driest).
How many extremely hot or cold days does Heckenberg have?
On average, Heckenberg sees about 0.4 day(s) a year at or above 40°C and about 0 day(s) at or below 0°C, based on 10 years of data.
Is Heckenberg getting warmer?
Across the 10 years on file (2016–2025), the annual average temperature has moved by about -0.26°C per decade. That's a short window for a reliable long-term climate trend — treat it as indicative, not definitive.
What is the hottest day on record for Heckenberg?
The hottest day on file is 7 January 2018 at 42.4°C, out of 10 year(s) searched.
Data & provenance
↓ Download monthly CSVData source & coverage — ERA5 reanalysis, 2016–2025 (10 years)details
- Source
- ERA5 reanalysis, accessed via the Copernicus Climate Change Service (C3S) Climate Data Store
- Data type
- Reanalysis — a physically consistent reconstruction combining a forecast model with historical observations, not a live station reading or a forecast
- Coverage
- 2016–2025 (10 years) for Australia
- Location
- Heckenberg — -34.000°, 151.000°, ERA5 grid cell center, 14.4 km from requested point
- Time zone
- Australia/Sydney
- What's shown here
- Monthly and annual averages, and dated extreme-value records, derived from an hourly base record.
- Spatial resolution
- 0.25° (~25 km) distributed grid — ERA5's native model resolution is finer; this is the publicly distributed regridded product
- Version / refreshed
- Methodology v2026.07 · data last refreshed December 31, 2025
- Limitations
- A model reconstruction, not a station observation — hyper-local extremes (a single storm cell, an urban heat pocket) can differ from a nearby gauge. See the full methodology.
- Attribution
- Generated using Copernicus Climate Change Service information
Cite this data
PastClimate (2026-07-17). Historical climate data for Heckenberg, Australia (-34.00°S, 151.00°E), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Heckenberg, Australia [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Heckenberg, Australia." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Heckenberg, Australia},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-17},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.