# Climate Design Data: Adelaide, Australia

> How to research climate design data for a specific site in Adelaide — the controlling authority, source documents, and checks to run before you rely on a number.

- Canonical: https://harth.build/resources/climate-data/climate-design-data-adelaide-au/
- Last updated: 2026-08-31
- Data source: Location data from the [GeoNames AU dump](https://download.geonames.org/export/dump/AU.zip) (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 2078025). Regulatory starting point: [Australian Building Codes Board and the applicable state or territory authority](https://ncc.abcb.gov.au/). Figures are illustrative — verify against the current locally adopted edition for the site. Climate screening data from the [NASA POWER Climatology API documentation](https://power.larc.nasa.gov/docs/services/api/temporal/climatology/) and [exact point response](https://power.larc.nasa.gov/api/temporal/climatology/point?parameters=T2M%2CT2M_MAX%2CT2M_MIN%2CRH2M%2CPRECTOTCORR%2CWS10M&community=SB&longitude=138.59863&latitude=-34.92866&format=JSON), retrieved 2026-08-31; source period: 20-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2020). NASA POWER values are gridded screening statistics, not code design conditions or guaranteed local observations.

## Key facts

| Fact | Value |
| --- | --- |
| NASA POWER climatology | 20-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2020) (API v2.9.7; LST) |
| Annual mean temperature | 15.9 °C (2 m gridded climatology; not a design percentile) |
| Highest monthly maximum | 45.1 °C (January) (monthly climatological statistic) |
| Lowest monthly minimum | -0.3 °C (July) (monthly climatological statistic) |
| Annual relative humidity | 64.8% (2 m gridded climatology) |
| Annual corrected precipitation | 1.18 mm/day (climatological daily rate) |
| Annual wind speed | 4.26 m/s (10 m gridded climatology; not a structural design wind speed) |

## Direct answer

NASA POWER's 2001–2020 climatology at the Adelaide reference point reports an annual mean 2 m temperature of 15.9 °C and relative humidity of 64.8%. The highest monthly maximum is 45.1 °C in January, while the lowest monthly minimum is -0.3 °C in July; these are screening statistics, not code design temperatures. The point response uses LST and the 20-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2020); its annual corrected precipitation is 1.18 mm/day and annual 10 m wind speed is 4.26 m/s. For climate design data, use the 45.1 °C and -0.3 °C monthly extrema to screen seasonal exposure, then obtain the adopted percentile design conditions. NASA POWER is gridded climatology: verify elevation, microclimate, urban exposure, station or weather-file suitability, current code edition and the authority's required source before design use.

*Content and cited inputs reviewed by [Scott Barrington](https://nz.linkedin.com/in/barrington), Harth founder and architectural technology specialist · Published 2026-08-26 · Updated 2026-08-31.*

## What are the key takeaways?

- NASA POWER climatology: 20-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2020)
- Annual mean temperature: 15.9 °C
- Highest monthly maximum: 45.1 °C (January)
- Lowest monthly minimum: -0.3 °C (July)

## What must be verified for Adelaide?

Adelaide is represented here at approximately **-34.9287, 138.5986** for discovery and workflow planning. A project address, parcel, elevation, exposure, authority, and submission date must replace that city-centre reference before design use.

## How should climate design data be established?

1. Fix the surveyed site and local time basis.
2. Select an authoritative weather source or a named solar-position algorithm.
3. Record period, percentile or scenario and units.
4. Test sensitivity to elevation, exposure, urban form and horizon.
5. Save the source file, retrieval date and checker in the model record.

| Input | Project-specific evidence | QA question |
| --- | --- | --- |
| Site | surveyed coordinates, elevation and horizon | Does the point represent the building? |
| Weather/solar method | named dataset, algorithm, period and time basis | Are station, time zone and units explicit? |
| Design scenario | current and future scenario agreed by the team | Is an average being mistaken for an extreme? |
| Compliance | adopted local document and edition | Was applicability confirmed with the authority? |

## What are the limits of this worksheet?

This climate-design-workflow page is a project-starting worksheet, not a design value or approval. The controlling authority and qualified professionals for the Adelaide site remain authoritative.

## Which related searches does this primary location record cover?

This primary route consolidates the location evidence needed for **Climate Design Data**, **Weather File Guide**, **Overheating Weather Data**, **Building Climate Checklist**. A narrower route should be released only when it adds a materially different official source, calculation, process, threshold or worked example.

## Adelaide NASA POWER monthly climate screening table

| Month | Mean °C | Monthly max °C | Monthly min °C | RH % | Precipitation mm/day | Wind at 10 m m/s |
| --- | ---: | ---: | ---: | ---: | ---: | ---: |
| January | 22.55 | 45.15 | 9.47 | 50.89 | 0.49 | 4.90 |
| February | 21.88 | 42.51 | 8.56 | 53.81 | 0.60 | 4.76 |
| March | 19.80 | 40.29 | 7.78 | 57.57 | 0.81 | 4.36 |
| April | 16.78 | 35.39 | 4.96 | 62.73 | 1.13 | 3.91 |
| May | 13.31 | 28.44 | 3.49 | 72.60 | 1.71 | 3.84 |
| June | 10.52 | 24.57 | 0.27 | 79.06 | 1.99 | 3.87 |
| July | 9.83 | 21.42 | -0.34 | 80.14 | 1.93 | 4.04 |
| August | 10.43 | 25.58 | 0.66 | 76.30 | 1.65 | 4.09 |
| September | 12.57 | 29.51 | 2.31 | 70.79 | 1.57 | 4.16 |
| October | 15.20 | 35.20 | 3.53 | 63.05 | 0.78 | 4.19 |
| November | 18.38 | 40.52 | 5.34 | 57.10 | 0.74 | 4.30 |
| December | 20.43 | 44.51 | 8.12 | 53.45 | 0.73 | 4.71 |

## Adelaide ranked monthly climate fingerprint

- **Adelaide mean temperature, highest to lowest:** January 22.55 °C, February 21.88 °C, December 20.43 °C, March 19.80 °C, November 18.38 °C, April 16.78 °C, October 15.20 °C, May 13.31 °C, September 12.57 °C, June 10.52 °C, August 10.43 °C, July 9.83 °C.
- **Adelaide monthly maximum, highest to lowest:** January 45.15 °C, December 44.51 °C, February 42.51 °C, November 40.52 °C, March 40.29 °C, April 35.39 °C, October 35.20 °C, September 29.51 °C, May 28.44 °C, August 25.58 °C, June 24.57 °C, July 21.42 °C.
- **Adelaide monthly minimum, highest to lowest:** January 9.47 °C, February 8.56 °C, December 8.12 °C, March 7.78 °C, November 5.34 °C, April 4.96 °C, October 3.53 °C, May 3.49 °C, September 2.31 °C, August 0.66 °C, June 0.27 °C, July -0.34 °C.
- **Adelaide relative humidity, highest to lowest:** July 80.14 %, June 79.06 %, August 76.30 %, May 72.60 %, September 70.79 %, October 63.05 %, April 62.73 %, March 57.57 %, November 57.10 %, February 53.81 %, December 53.45 %, January 50.89 %.
- **Adelaide corrected precipitation, highest to lowest:** June 1.99 mm/day, July 1.93 mm/day, May 1.71 mm/day, August 1.65 mm/day, September 1.57 mm/day, April 1.13 mm/day, March 0.81 mm/day, October 0.78 mm/day, November 0.74 mm/day, December 0.73 mm/day, February 0.60 mm/day, January 0.49 mm/day.
- **Adelaide 10 m wind speed, highest to lowest:** January 4.90 m/s, February 4.76 m/s, December 4.71 m/s, March 4.36 m/s, November 4.30 m/s, October 4.19 m/s, September 4.16 m/s, August 4.09 m/s, July 4.04 m/s, April 3.91 m/s, June 3.87 m/s, May 3.84 m/s.

## Adelaide month-to-month screening ledger

- **Adelaide January:** mean 22.55 °C, change from December +2.12 °C; max–min span 35.68 °C; humidity 50.89%, change -2.56 points; precipitation 0.49 mm/day; wind 4.90 m/s.
- **Adelaide February:** mean 21.88 °C, change from January -0.67 °C; max–min span 33.95 °C; humidity 53.81%, change +2.92 points; precipitation 0.60 mm/day; wind 4.76 m/s.
- **Adelaide March:** mean 19.80 °C, change from February -2.08 °C; max–min span 32.51 °C; humidity 57.57%, change +3.76 points; precipitation 0.81 mm/day; wind 4.36 m/s.
- **Adelaide April:** mean 16.78 °C, change from March -3.02 °C; max–min span 30.43 °C; humidity 62.73%, change +5.16 points; precipitation 1.13 mm/day; wind 3.91 m/s.
- **Adelaide May:** mean 13.31 °C, change from April -3.47 °C; max–min span 24.95 °C; humidity 72.60%, change +9.87 points; precipitation 1.71 mm/day; wind 3.84 m/s.
- **Adelaide June:** mean 10.52 °C, change from May -2.79 °C; max–min span 24.30 °C; humidity 79.06%, change +6.46 points; precipitation 1.99 mm/day; wind 3.87 m/s.
- **Adelaide July:** mean 9.83 °C, change from June -0.69 °C; max–min span 21.76 °C; humidity 80.14%, change +1.08 points; precipitation 1.93 mm/day; wind 4.04 m/s.
- **Adelaide August:** mean 10.43 °C, change from July +0.60 °C; max–min span 24.92 °C; humidity 76.30%, change -3.84 points; precipitation 1.65 mm/day; wind 4.09 m/s.
- **Adelaide September:** mean 12.57 °C, change from August +2.14 °C; max–min span 27.20 °C; humidity 70.79%, change -5.51 points; precipitation 1.57 mm/day; wind 4.16 m/s.
- **Adelaide October:** mean 15.20 °C, change from September +2.63 °C; max–min span 31.67 °C; humidity 63.05%, change -7.74 points; precipitation 0.78 mm/day; wind 4.19 m/s.
- **Adelaide November:** mean 18.38 °C, change from October +3.18 °C; max–min span 35.18 °C; humidity 57.10%, change -5.95 points; precipitation 0.74 mm/day; wind 4.30 m/s.
- **Adelaide December:** mean 20.43 °C, change from November +2.05 °C; max–min span 36.39 °C; humidity 53.45%, change -3.65 points; precipitation 0.73 mm/day; wind 4.71 m/s.

Harth retrieved this point climatology from NASA POWER API v2.9.7 for location record 2078025. The ranked fingerprint and transition ledger preserve Adelaide's monthly order and successive changes for source comparison. This is a reproducible screening dataset, not an hourly weather file, forecast, code design condition or substitute for local professional review.

## Where can you explore related guidance?

- [Explore all climate data guidance](https://harth.build/resources/climate-data.md)
- [Climate Design Data: Adelaide Hills, Australia](https://harth.build/resources/climate-data/climate-design-data-adelaide-hills-au.md)
- [Climate Design Data: Ballarat, Australia](https://harth.build/resources/climate-data/climate-design-data-ballarat-au.md)
- [Climate Design Data: Bendigo, Australia](https://harth.build/resources/climate-data/climate-design-data-bendigo-au.md)
- [Climate Design Data: Geelong, Australia](https://harth.build/resources/climate-data/climate-design-data-geelong-au.md)
- [All climate & energy design data guidance for Australia](https://harth.build/resources/climate-data/australia.md)
- [House Construction Cost Planning: Adelaide, Australia](https://harth.build/resources/construction-costs/house-construction-cost-adelaide-au.md)
- [Office Construction Cost Planning: Adelaide, Australia](https://harth.build/resources/construction-costs/office-construction-cost-adelaide-au.md)
- [Retail Construction Cost Planning: Adelaide, Australia](https://harth.build/resources/construction-costs/retail-construction-cost-adelaide-au.md)
- [School Construction Cost Planning: Adelaide, Australia](https://harth.build/resources/construction-costs/school-construction-cost-adelaide-au.md)

## Sources and method

Location data from the [GeoNames AU dump](https://download.geonames.org/export/dump/AU.zip) (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 2078025). Regulatory starting point: [Australian Building Codes Board and the applicable state or territory authority](https://ncc.abcb.gov.au/). Figures are illustrative — verify against the current locally adopted edition for the site. Climate screening data from the [NASA POWER Climatology API documentation](https://power.larc.nasa.gov/docs/services/api/temporal/climatology/) and [exact point response](https://power.larc.nasa.gov/api/temporal/climatology/point?parameters=T2M%2CT2M_MAX%2CT2M_MIN%2CRH2M%2CPRECTOTCORR%2CWS10M&community=SB&longitude=138.59863&latitude=-34.92866&format=JSON), retrieved 2026-08-31; source period: 20-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2020). NASA POWER values are gridded screening statistics, not code design conditions or guaranteed local observations.

### Source links

- [download.geonames.org](https://download.geonames.org/export/dump/AU.zip)

- [ncc.abcb.gov.au](https://ncc.abcb.gov.au/)

- [power.larc.nasa.gov](https://power.larc.nasa.gov/docs/services/api/temporal/climatology/)

- [power.larc.nasa.gov](https://power.larc.nasa.gov/api/temporal/climatology/point?parameters=T2M%2CT2M_MAX%2CT2M_MIN%2CRH2M%2CPRECTOTCORR%2CWS10M&community=SB&longitude=138.59863&latitude=-34.92866&format=JSON)

## Frequently asked questions

### What does NASA POWER climatology show for Adelaide?

For the Adelaide reference point, the 2001–2020 NASA POWER climatology reports 15.9 °C annual mean temperature, 64.8% relative humidity and 1.18 mm/day corrected precipitation. The monthly maximum peaks at 45.1 °C in January.

### Can the Adelaide climatology replace project design temperatures or an hourly weather file?

No. The Adelaide response is gridded monthly climatology; its lowest monthly minimum of -0.3 °C in July is not a code percentile or observed site extreme. Verify elevation, local exposure, the required weather file or design-condition source and the current adopted code.

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