Climate & Energy Design Data
Climate Design Data: Ajman, UAE
How to research climate design data for a specific site in Ajman — the controlling authority, source documents, and checks to run before you rely on a number.
On this page
Last updated August 31, 2026 · Location data from the [GeoNames AE dump](https://download.geonames.org/export/dump/AE.zip) (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 292932). Regulatory starting point: [UAE Government overview of local building authorities](https://u.ae/en/information-and-services/justice-safety-and-the-law/building-safety). 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=55.47878&latitude=25.40177&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.
Direct answer
NASA POWER's 2001–2020 climatology at the Ajman reference point reports an annual mean 2 m temperature of 28.6 °C and relative humidity of 54.1%. The highest monthly maximum is 46.1 °C in June, while the lowest monthly minimum is 10.9 °C in February; 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 0.24 mm/day and annual 10 m wind speed is 3.58 m/s. For climate design data, use the 46.1 °C and 10.9 °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 Harth team · 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: 28.6 °C
- Highest monthly maximum: 46.1 °C (June)
- Lowest monthly minimum: 10.9 °C (February)
What must be verified for Ajman?
Ajman is represented here at approximately 25.4018, 55.4788 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?
- Fix the surveyed site and local time basis.
- Select an authoritative weather source or a named solar-position algorithm.
- Record period, percentile or scenario and units.
- Test sensitivity to elevation, exposure, urban form and horizon.
- 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 Ajman 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.
Ajman 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 | 20.14 | 29.12 | 12.15 | 60.92 | 0.74 | 3.73 |
| February | 21.13 | 33.11 | 10.90 | 59.55 | 0.35 | 3.92 |
| March | 23.69 | 37.10 | 15.15 | 57.26 | 0.53 | 4.07 |
| April | 27.49 | 38.65 | 18.16 | 52.44 | 0.21 | 3.92 |
| May | 31.53 | 44.25 | 21.80 | 49.96 | 0.04 | 3.86 |
| June | 34.14 | 46.11 | 24.84 | 51.44 | 0.08 | 3.65 |
| July | 35.72 | 46.05 | 27.71 | 50.39 | 0.03 | 3.59 |
| August | 35.66 | 44.52 | 28.60 | 48.55 | 0.04 | 3.55 |
| September | 33.69 | 43.28 | 26.71 | 51.60 | 0.03 | 3.11 |
| October | 30.77 | 39.52 | 22.82 | 53.15 | 0.07 | 2.94 |
| November | 26.42 | 34.87 | 19.19 | 54.68 | 0.27 | 3.27 |
| December | 22.43 | 31.99 | 14.49 | 59.17 | 0.45 | 3.39 |
Ajman ranked monthly climate fingerprint
- Ajman mean temperature, highest to lowest: July 35.72 °C, August 35.66 °C, June 34.14 °C, September 33.69 °C, May 31.53 °C, October 30.77 °C, April 27.49 °C, November 26.42 °C, March 23.69 °C, December 22.43 °C, February 21.13 °C, January 20.14 °C.
- Ajman monthly maximum, highest to lowest: June 46.11 °C, July 46.05 °C, August 44.52 °C, May 44.25 °C, September 43.28 °C, October 39.52 °C, April 38.65 °C, March 37.10 °C, November 34.87 °C, February 33.11 °C, December 31.99 °C, January 29.12 °C.
- Ajman monthly minimum, highest to lowest: August 28.60 °C, July 27.71 °C, September 26.71 °C, June 24.84 °C, October 22.82 °C, May 21.80 °C, November 19.19 °C, April 18.16 °C, March 15.15 °C, December 14.49 °C, January 12.15 °C, February 10.90 °C.
- Ajman relative humidity, highest to lowest: January 60.92 %, February 59.55 %, December 59.17 %, March 57.26 %, November 54.68 %, October 53.15 %, April 52.44 %, September 51.60 %, June 51.44 %, July 50.39 %, May 49.96 %, August 48.55 %.
- Ajman corrected precipitation, highest to lowest: January 0.74 mm/day, March 0.53 mm/day, December 0.45 mm/day, February 0.35 mm/day, November 0.27 mm/day, April 0.21 mm/day, June 0.08 mm/day, October 0.07 mm/day, August 0.04 mm/day, May 0.04 mm/day, July 0.03 mm/day, September 0.03 mm/day.
- Ajman 10 m wind speed, highest to lowest: March 4.07 m/s, April 3.92 m/s, February 3.92 m/s, May 3.86 m/s, January 3.73 m/s, June 3.65 m/s, July 3.59 m/s, August 3.55 m/s, December 3.39 m/s, November 3.27 m/s, September 3.11 m/s, October 2.94 m/s.
Ajman month-to-month screening ledger
- Ajman January: mean 20.14 °C, change from December -2.29 °C; max–min span 16.97 °C; humidity 60.92%, change +1.75 points; precipitation 0.74 mm/day; wind 3.73 m/s.
- Ajman February: mean 21.13 °C, change from January +0.99 °C; max–min span 22.21 °C; humidity 59.55%, change -1.37 points; precipitation 0.35 mm/day; wind 3.92 m/s.
- Ajman March: mean 23.69 °C, change from February +2.56 °C; max–min span 21.95 °C; humidity 57.26%, change -2.29 points; precipitation 0.53 mm/day; wind 4.07 m/s.
- Ajman April: mean 27.49 °C, change from March +3.80 °C; max–min span 20.49 °C; humidity 52.44%, change -4.82 points; precipitation 0.21 mm/day; wind 3.92 m/s.
- Ajman May: mean 31.53 °C, change from April +4.04 °C; max–min span 22.45 °C; humidity 49.96%, change -2.48 points; precipitation 0.04 mm/day; wind 3.86 m/s.
- Ajman June: mean 34.14 °C, change from May +2.61 °C; max–min span 21.27 °C; humidity 51.44%, change +1.48 points; precipitation 0.08 mm/day; wind 3.65 m/s.
- Ajman July: mean 35.72 °C, change from June +1.58 °C; max–min span 18.34 °C; humidity 50.39%, change -1.05 points; precipitation 0.03 mm/day; wind 3.59 m/s.
- Ajman August: mean 35.66 °C, change from July -0.06 °C; max–min span 15.92 °C; humidity 48.55%, change -1.84 points; precipitation 0.04 mm/day; wind 3.55 m/s.
- Ajman September: mean 33.69 °C, change from August -1.97 °C; max–min span 16.57 °C; humidity 51.60%, change +3.05 points; precipitation 0.03 mm/day; wind 3.11 m/s.
- Ajman October: mean 30.77 °C, change from September -2.92 °C; max–min span 16.70 °C; humidity 53.15%, change +1.55 points; precipitation 0.07 mm/day; wind 2.94 m/s.
- Ajman November: mean 26.42 °C, change from October -4.35 °C; max–min span 15.68 °C; humidity 54.68%, change +1.53 points; precipitation 0.27 mm/day; wind 3.27 m/s.
- Ajman December: mean 22.43 °C, change from November -3.99 °C; max–min span 17.50 °C; humidity 59.17%, change +4.49 points; precipitation 0.45 mm/day; wind 3.39 m/s.
Harth retrieved this point climatology from NASA POWER API v2.9.7 for location record 292932. The ranked fingerprint and transition ledger preserve Ajman'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
- Climate Design Data: Dubai, UAE
- Climate Design Data: Ras Al Khaimah, UAE
- Climate Design Data: Dibba Al-Fujairah, UAE
- Climate Design Data: Fujairah, UAE
- All climate & energy design data guidance for United Arab Emirates
- House Construction Cost Planning: Ajman, United Arab Emirates
- Office Construction Cost Planning: Ajman, United Arab Emirates
- Retail Construction Cost Planning: Ajman, United Arab Emirates
- School Construction Cost Planning: Ajman, United Arab Emirates
Sources and method
Location data from the GeoNames AE dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 292932). Regulatory starting point: UAE Government overview of local building authorities. Figures are illustrative — verify against the current locally adopted edition for the site. Climate screening data from the NASA POWER Climatology API documentation and exact point response, 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
Frequently asked questions
What does NASA POWER climatology show for Ajman?
For the Ajman reference point, the 2001–2020 NASA POWER climatology reports 28.6 °C annual mean temperature, 54.1% relative humidity and 0.24 mm/day corrected precipitation. The monthly maximum peaks at 46.1 °C in June.
Can the Ajman climatology replace project design temperatures or an hourly weather file?
No. The Ajman response is gridded monthly climatology; its lowest monthly minimum of 10.9 °C in February 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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