Climate & Energy Design Data

Updated 2026-08-31

Climate Design Data: Nakuru, Kenya

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

Last updated August 31, 2026 · Location data from the [GeoNames KE dump](https://download.geonames.org/export/dump/KE.zip) (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 184622). Regulatory starting point: [National Construction Authority and the applicable county government](https://www.nca.go.ke/). 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=36.07225&latitude=-0.30719&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 Nakuru reference point reports an annual mean 2 m temperature of 15.6 °C and relative humidity of 75.5%. The highest monthly maximum is 30.3 °C in February, while the lowest monthly minimum is 3.7 °C in January; 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 3.37 mm/day and annual 10 m wind speed is 2.97 m/s. For climate design data, use the 30.3 °C and 3.7 °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.

Prepared by Harth · Harth transformed the cited NASA POWER climatology into this screening table; project design conditions and local applicability remain unreviewed · Published 2026-08-26 · Updated 2026-08-31.

What must be verified for Nakuru?

Nakuru is represented here at approximately -0.3072, 36.0722 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.
InputProject-specific evidenceQA question
Sitesurveyed coordinates, elevation and horizonDoes the point represent the building?
Weather/solar methodnamed dataset, algorithm, period and time basisAre station, time zone and units explicit?
Design scenariocurrent and future scenario agreed by the teamIs an average being mistaken for an extreme?
Complianceadopted local document and editionWas 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 Nakuru site remain authoritative.

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.

Nakuru NASA POWER monthly climate screening table

MonthMean °CMonthly max °CMonthly min °CRH %Precipitation mm/dayWind at 10 m m/s
January16.0728.123.7168.091.742.94
February16.9230.295.1964.311.383.28
March17.3129.416.0667.863.403.22
April16.4228.468.0978.376.853.27
May15.4424.628.1781.294.803.17
June14.7425.316.1480.482.752.49
July14.1925.425.6279.422.182.48
August14.4525.805.3578.412.862.53
September15.2226.446.3674.882.832.78
October15.7025.967.5375.803.723.40
November15.6725.747.7580.054.863.17
December15.6627.294.8375.793.072.99

Nakuru ranked monthly climate fingerprint

  • Nakuru mean temperature, highest to lowest: March 17.31 °C, February 16.92 °C, April 16.42 °C, January 16.07 °C, October 15.70 °C, November 15.67 °C, December 15.66 °C, May 15.44 °C, September 15.22 °C, June 14.74 °C, August 14.45 °C, July 14.19 °C.
  • Nakuru monthly maximum, highest to lowest: February 30.29 °C, March 29.41 °C, April 28.46 °C, January 28.12 °C, December 27.29 °C, September 26.44 °C, October 25.96 °C, August 25.80 °C, November 25.74 °C, July 25.42 °C, June 25.31 °C, May 24.62 °C.
  • Nakuru monthly minimum, highest to lowest: May 8.17 °C, April 8.09 °C, November 7.75 °C, October 7.53 °C, September 6.36 °C, June 6.14 °C, March 6.06 °C, July 5.62 °C, August 5.35 °C, February 5.19 °C, December 4.83 °C, January 3.71 °C.
  • Nakuru relative humidity, highest to lowest: May 81.29 %, June 80.48 %, November 80.05 %, July 79.42 %, August 78.41 %, April 78.37 %, October 75.80 %, December 75.79 %, September 74.88 %, January 68.09 %, March 67.86 %, February 64.31 %.
  • Nakuru corrected precipitation, highest to lowest: April 6.85 mm/day, November 4.86 mm/day, May 4.80 mm/day, October 3.72 mm/day, March 3.40 mm/day, December 3.07 mm/day, August 2.86 mm/day, September 2.83 mm/day, June 2.75 mm/day, July 2.18 mm/day, January 1.74 mm/day, February 1.38 mm/day.
  • Nakuru 10 m wind speed, highest to lowest: October 3.40 m/s, February 3.28 m/s, April 3.27 m/s, March 3.22 m/s, May 3.17 m/s, November 3.17 m/s, December 2.99 m/s, January 2.94 m/s, September 2.78 m/s, August 2.53 m/s, June 2.49 m/s, July 2.48 m/s.

Nakuru month-to-month screening ledger

  • Nakuru January: mean 16.07 °C, change from December +0.41 °C; max–min span 24.41 °C; humidity 68.09%, change -7.70 points; precipitation 1.74 mm/day; wind 2.94 m/s.
  • Nakuru February: mean 16.92 °C, change from January +0.85 °C; max–min span 25.10 °C; humidity 64.31%, change -3.78 points; precipitation 1.38 mm/day; wind 3.28 m/s.
  • Nakuru March: mean 17.31 °C, change from February +0.39 °C; max–min span 23.35 °C; humidity 67.86%, change +3.55 points; precipitation 3.40 mm/day; wind 3.22 m/s.
  • Nakuru April: mean 16.42 °C, change from March -0.89 °C; max–min span 20.37 °C; humidity 78.37%, change +10.51 points; precipitation 6.85 mm/day; wind 3.27 m/s.
  • Nakuru May: mean 15.44 °C, change from April -0.98 °C; max–min span 16.45 °C; humidity 81.29%, change +2.92 points; precipitation 4.80 mm/day; wind 3.17 m/s.
  • Nakuru June: mean 14.74 °C, change from May -0.70 °C; max–min span 19.17 °C; humidity 80.48%, change -0.81 points; precipitation 2.75 mm/day; wind 2.49 m/s.
  • Nakuru July: mean 14.19 °C, change from June -0.55 °C; max–min span 19.80 °C; humidity 79.42%, change -1.06 points; precipitation 2.18 mm/day; wind 2.48 m/s.
  • Nakuru August: mean 14.45 °C, change from July +0.26 °C; max–min span 20.45 °C; humidity 78.41%, change -1.01 points; precipitation 2.86 mm/day; wind 2.53 m/s.
  • Nakuru September: mean 15.22 °C, change from August +0.77 °C; max–min span 20.08 °C; humidity 74.88%, change -3.53 points; precipitation 2.83 mm/day; wind 2.78 m/s.
  • Nakuru October: mean 15.70 °C, change from September +0.48 °C; max–min span 18.43 °C; humidity 75.80%, change +0.92 points; precipitation 3.72 mm/day; wind 3.40 m/s.
  • Nakuru November: mean 15.67 °C, change from October -0.03 °C; max–min span 17.99 °C; humidity 80.05%, change +4.25 points; precipitation 4.86 mm/day; wind 3.17 m/s.
  • Nakuru December: mean 15.66 °C, change from November -0.01 °C; max–min span 22.46 °C; humidity 75.79%, change -4.26 points; precipitation 3.07 mm/day; wind 2.99 m/s.

Harth retrieved this point climatology from NASA POWER API v2.9.7 for location record 184622. The ranked fingerprint and transition ledger preserve Nakuru'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.

Sources and method

Location data from the GeoNames KE dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 184622). Regulatory starting point: National Construction Authority and the applicable county government. 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.

Frequently asked questions

What does NASA POWER climatology show for Nakuru?

For the Nakuru reference point, the 2001–2020 NASA POWER climatology reports 15.6 °C annual mean temperature, 75.5% relative humidity and 3.37 mm/day corrected precipitation. The monthly maximum peaks at 30.3 °C in February.

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

No. The Nakuru response is gridded monthly climatology; its lowest monthly minimum of 3.7 °C in January 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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