The Exemplary Real Time Year weather files (RTYs), current Reference Meteorological Year files (RMYs) and Ersatz Future Meteorological Years (EFMYs) used for these monthly simulations are available for purchase. This will allow clients to simulate their own designs for energy budgeting and monitoring rather than rely on analogy with the performance of these archetypical buildings and systems. Especially in mild months, small differences in energy consumptions can result in large percentage differences. Solar irradiation data courtesy of Solcast.
Archetypical buildings and systems
10-storey office
3-storey office
Supermarket
5 kW domestic
PV system
Get the Best out of our Interactive Features
This monthly report has been interactive since April 2023. Once you have scrolled to your city of interest, check out those interactive features and how they work. Click here to read about the introduction.
- 1. Choose the energy or peak demand graph to best match your building or system of interest.
- 2. Choose the weather element graph to best match the sensitivity of your building or system of interest.
- 3. Mix and match to learn about their relative importance or sensitivity
All values are % higher/lower energy demand/output relative to climatically typical weather.
Especially during the mild seasons, large % changes can occur from small absolute differences. RTYs are available for purchase for your own simulations.
ADELAIDE
Energy Index (%)
| 10-storey | 3-storey | Supermarket | |||
| Heating | Cooling | Heating | Cooling | Heating | Cooling |
| -20.8% | +89.4% | -15.7% | +53.9% | -28.1% | +220% |
| Solar PV | |||||
| -6.6% |
The solar PV simulation output was 6.6% lower than the long-term average. The heating peak load was lower than the long-term average for the 3-storey office building and 10-storey office building by 11.2% and 6.3% while the supermarket is slightly higher by 0.5%. It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings – it is more appropriate to evaluate those results from the bespoke building model (digital twin) using our RTY data.
Adelaide experienced warmer-than-average conditions in June compared with the long-term mean, along with higher daytime relative humidity. GHI was slightly below the long-term average, while wind speeds were lower during the daytime but higher during the remaining hours of the day.
Weather Index
| Temperature (°C) | ||
| Mean Min | Mean Avg | Mean Max |
| +0.6 | +1.0 | +1.1 |
| Relative Humidity (%pt) | ||
| Mean Min | Mean Avg | Mean Max |
| +2.5 | +1.8 | -0.1 |
| Daily Solar Irradiation (GHI %) | ||
| Cloudiest | Mean | Sunniest |
| -8.5 | -4.0 | +1.0 |
BRISBANE
Energy Index (%)
| 10-storey | 3-storey | Supermarket | |||
| Heating | Cooling | Heating | Cooling | Heating | Cooling |
| -78.0% | +16.1% | -72.5% | +8.4% | -59.2% | +32.1% |
| Solar PV | |||||
| -6.9% |
The solar PV simulation output was 6.9% lower than the long-term average. The heating peak load was much lower than the long-term average for the 3-storey office building, 10-storey office building and supermarket, by 63.1%, 74.0% and 44.1%, respectively. It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings – it is more appropriate to evaluate those results from the bespoke building model (digital twin) using our RTY data.
Brisbane experienced higher than average temperatures in June compared with the long-term mean, except during daytime hours and relative humidity was higher after 7:00 am. GHI was below the long-term average, while wind speeds remained broadly similar to the long-term average.
Weather Index
| Temperature (°C) | ||
| Mean Min | Mean Avg | Mean Max |
| +1.6 | +1.0 | -0.1 |
| Relative Humidity (%pt) | ||
| Mean Min | Mean Avg | Mean Max |
| +8.9 | +3.6 | -0.1 |
| Daily Solar Irradiation (GHI %) | ||
| Cloudiest | Mean | Sunniest |
| +4.2 | -3.3 | +5.3 |
CANBERRA
Energy Index (%)
| 10-storey | 3-storey | Supermarket | |||
| Heating | Cooling | Heating | Cooling | Heating | Cooling |
| -22.8% | -11.7% | -21.7% | -11.0% | -24.0% | +36.4% |
| Solar PV | |||||
| -13.2% |
The solar PV simulation output was 13.2% lower than the long-term average. The heating peak load was lower than the long-term average for the 3-storey office, 10-storey office and supermarket, by 20.9%, 20.4% and 0.5%, respectively. It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings – it is more appropriate to evaluate those results from the bespoke building model (digital twin) using our RTY data.
Canberra experienced higher-than-average temperatures and relative humidity in June compared with the long-term average. GHI was below average, while wind speeds were broadly similar to the long-term average.
Weather Index
| Temperature (°C) | ||
| Mean Min | Mean Avg | Mean Max |
| +1.9 | +1.3 | +1.0 |
| Relative Humidity (%pt) | ||
| Mean Min | Mean Avg | Mean Max |
| +10.0 | +7.4 | +2.3 |
| Daily Solar Irradiation (GHI %) | ||
| Cloudiest | Mean | Sunniest |
| -49.2 | -10.6 | +3.4 |
DARWIN
Energy Index (%)
| 10-storey | 3-storey | Supermarket | |||
| Heating | Cooling | Heating | Cooling | Heating | Cooling |
| N.A. | +13.6% | N.A. | +12.2% | N.A. | +8.6% |
| Solar PV | |||||
| -9.7% |
The solar PV simulation output was 9.7% lower than the long-term average. The cooling peak load was higher than the long-term average for the 3-storey office, the 10-storey office and the supermarket, by 11.1%, 12.2% and 0.5%, respectively. It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings – it is more appropriate to evaluate those results from the bespoke building model (digital twin) using our RTY data.
Darwin experienced temperatures similar to the long-term average in June, along with higher relative humidity. GHI was below average, while wind speeds were broadly similar to the long-term mean for most of the day.
Weather Index
| Temperature (°C) | ||
| Mean Min | Mean Avg | Mean Max |
| +0.8 | +0.4 | +0.2 |
| Relative Humidity (%pt) | ||
| Mean Min | Mean Avg | Mean Max |
| +10.9 | +7.4 | +3.2 |
| Daily Solar Irradiation (GHI %) | ||
| Cloudiest | Mean | Sunniest |
| -43.1 | -6.9 | -1.8 |
HOBART
Energy Index (%)
| 10-storey | 3-storey | Supermarket | |||
| Heating | Cooling | Heating | Cooling | Heating | Cooling |
| -40.7% | +208% | -40.7% | +195% | -35.2% | N.A. |
| Solar PV | |||||
| -4.1% |
The solar PV simulation output was 4.1% lower than the long-term average. The heating peak load was lower than the long-term average for the 3-storey office building, the 10-storey office building and the supermarket by 19.3% and 19.1% and 4.3% respectively. It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings – it is more appropriate to evaluate those results from the bespoke building model (digital twin) using our RTY data.
Hobart experienced much warmer and more humid conditions in June compared with the long-term average. GHI was higher than average, while wind speeds were generally lower for most of the time.
Weather Index
| Temperature (°C) | ||
| Mean Min | Mean Avg | Mean Max |
| +1.7 | +1.7 | +2.0 |
| Relative Humidity (%pt) | ||
| Mean Min | Mean Avg | Mean Max |
| +2.3 | +2.3 | +0.3 |
| Daily Solar Irradiation (GHI %) | ||
| Cloudiest | Mean | Sunniest |
| +4.9 | +6.6 | +1.2 |
MELBOURNE
Energy Index (%)
| 10-storey | 3-storey | Supermarket | |||
| Heating | Cooling | Heating | Cooling | Heating | Cooling |
| -39.7% | +61.0% | -38.6% | +71.5% | -31.0% | N.A. |
| Solar PV | |||||
| -22.4% |
The solar PV simulation output was 22.4% lower than the long-term average. The heating peak load was significantly lower than the long-term average for the 3-storey office building, the 10-storey office building and supermarket by 35.0% and 35.8% and 33.1% respectively. It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings -it is more appropriate to evaluate those results from the bespoke building model (digital twin) using our RTY data.
Melbourne experienced warmer temperatures and significantly higher relative humidity in June compared with the long-term average, while GHI was substantially below average.
Weather Index
| Temperature (°C) | ||
| Mean Min | Mean Avg | Mean Max |
| +1.3 | +1.6 | +1.6 |
| Relative Humidity (%pt) | ||
| Mean Min | Mean Avg | Mean Max |
| +9.2 | +11.6 | +9.2 |
| Daily Solar Irradiation (GHI %) | ||
| Cloudiest | Mean | Sunniest |
| -49.1 | -12.8 | -1.6 |
PERTH
Energy Index (%)
| 10-storey | 3-storey | Supermarket | |||
| Heating | Cooling | Heating | Cooling | Heating | Cooling |
| +20.9% | +21.8% | +17.9% | +22.3% | -1.3% | +44.5% |
| Solar PV | |||||
| -2.4% |
The solar PV simulation output was 2.4% lower than the long-term average. The heating peak load was higher than the long-term average for the 3-storey office building and 10-storey office building and the supermarket by 13.4%, 12.6% and 16.9% respectively. It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings – it is more appropriate to evaluate those results from the bespoke building model (digital twin) using our RTY data.
Perth experienced warmer daytime temperatures, but similar overnight temperatures compared with the long-term average in June, along with similar relative humidity. GHI was slightly higher, while wind speeds were lower during the daytime and similar during other times of the day.
Weather Index
| Temperature (°C) | ||
| Mean Min | Mean Avg | Mean Max |
| -0.1 | +0.3 | +1.0 |
| Relative Humidity (%pt) | ||
| Mean Min | Mean Avg | Mean Max |
| +2.9 | +0.1 | -4.0 |
| Daily Solar Irradiation (GHI %) | ||
| Cloudiest | Mean | Sunniest |
| -38.9 | +4.6 | +5.1 |
SYDNEY
Energy Index (%)
| 10-storey | 3-storey | Supermarket | |||
| Heating | Cooling | Heating | Cooling | Heating | Cooling |
| -66.2% | +208% | -60.5% | +103% | -49.0% | +187% |
| Solar PV | |||||
| -9.1% |
The solar PV simulation output was 9.1% lower than the long-term average. The heating peak load was lower than the long-term average for the 3-storey office, the 10-storey office and the supermarket by 22.5%, 27.0% and 26.9%, respectively. It should be noted that peak load results are highly sensitive to the particular building and HVAC design and settings – it is more appropriate to evaluate those results from the bespoke building model (digital twin) using our RTY data.
Sydney experienced much higher temperatures and slightly higher relative humidity in June compared with the long-term average. Both GHI and wind speeds were similar to the long-term average.
Weather Index
| Temperature (°C) | ||
| Mean Min | Mean Avg | Mean Max |
| +1.8 | +1.6 | +2.0 |
| Relative Humidity (%pt) | ||
| Mean Min | Mean Avg | Mean Max |
| +3.0 | +1.5 | -1.2 |
| Daily Solar Irradiation (GHI %) | ||
| Cloudiest | Mean | Sunniest |
| -7.2 | -1.1 | +5.8 |