Climate Design Data: Mombasa, Kenya

Direct answer

NASA POWER's 2001–2020 climatology at the Mombasa reference point reports an annual mean 2 m temperature of 26.2 °C and relative humidity of 74.1%. The highest monthly maximum is 40.0 °C in February, while the lowest monthly minimum is 16.4 °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 2.45 mm/day and annual 10 m wind speed is 4.61 m/s. For climate design data, use the 40.0 °C and 16.4 °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: 26.2 °C
• Highest monthly maximum: 40.0 °C (February)
• Lowest monthly minimum: 16.4 °C (July)

What must be verified for Mombasa?

Mombasa is represented here at approximately -4.0547, 39.6636 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.

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 Mombasa 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.

Mombasa NASA POWER monthly climate screening table

Mombasa ranked monthly climate fingerprint

• Mombasa mean temperature, highest to lowest: February 28.42 °C, March 28.19 °C, January 27.95 °C, December 27.37 °C, April 26.89 °C, November 26.64 °C, October 26.07 °C, May 25.47 °C, September 25.19 °C, June 24.33 °C, August 24.32 °C, July 23.93 °C.
• Mombasa monthly maximum, highest to lowest: February 39.98 °C, March 39.02 °C, January 38.15 °C, December 37.40 °C, April 37.16 °C, November 36.06 °C, October 35.65 °C, May 34.38 °C, September 33.21 °C, August 32.03 °C, June 31.92 °C, July 31.40 °C.
• Mombasa monthly minimum, highest to lowest: March 21.95 °C, December 21.35 °C, February 21.25 °C, January 20.43 °C, April 20.39 °C, November 20.27 °C, October 19.68 °C, May 19.34 °C, September 18.72 °C, June 17.89 °C, August 17.61 °C, July 16.37 °C.
• Mombasa relative humidity, highest to lowest: May 81.84 %, April 79.09 %, June 78.07 %, November 76.53 %, July 74.57 %, December 74.47 %, October 73.26 %, August 72.69 %, March 71.29 %, September 71.15 %, January 68.95 %, February 66.61 %.
• Mombasa corrected precipitation, highest to lowest: May 7.00 mm/day, April 4.30 mm/day, November 3.46 mm/day, October 3.15 mm/day, June 2.47 mm/day, December 2.24 mm/day, March 1.99 mm/day, September 1.25 mm/day, July 1.15 mm/day, August 0.93 mm/day, January 0.79 mm/day, February 0.52 mm/day.
• Mombasa 10 m wind speed, highest to lowest: July 6.01 m/s, June 5.84 m/s, August 5.69 m/s, September 5.40 m/s, May 5.29 m/s, October 4.46 m/s, January 4.32 m/s, February 4.03 m/s, April 4.01 m/s, December 3.61 m/s, March 3.30 m/s, November 3.27 m/s.

Mombasa month-to-month screening ledger

• Mombasa January: mean 27.95 °C, change from December +0.58 °C; max–min span 17.72 °C; humidity 68.95%, change -5.52 points; precipitation 0.79 mm/day; wind 4.32 m/s.
• Mombasa February: mean 28.42 °C, change from January +0.47 °C; max–min span 18.73 °C; humidity 66.61%, change -2.34 points; precipitation 0.52 mm/day; wind 4.03 m/s.
• Mombasa March: mean 28.19 °C, change from February -0.23 °C; max–min span 17.07 °C; humidity 71.29%, change +4.68 points; precipitation 1.99 mm/day; wind 3.30 m/s.
• Mombasa April: mean 26.89 °C, change from March -1.30 °C; max–min span 16.77 °C; humidity 79.09%, change +7.80 points; precipitation 4.30 mm/day; wind 4.01 m/s.
• Mombasa May: mean 25.47 °C, change from April -1.42 °C; max–min span 15.04 °C; humidity 81.84%, change +2.75 points; precipitation 7.00 mm/day; wind 5.29 m/s.
• Mombasa June: mean 24.33 °C, change from May -1.14 °C; max–min span 14.03 °C; humidity 78.07%, change -3.77 points; precipitation 2.47 mm/day; wind 5.84 m/s.
• Mombasa July: mean 23.93 °C, change from June -0.40 °C; max–min span 15.03 °C; humidity 74.57%, change -3.50 points; precipitation 1.15 mm/day; wind 6.01 m/s.
• Mombasa August: mean 24.32 °C, change from July +0.39 °C; max–min span 14.42 °C; humidity 72.69%, change -1.88 points; precipitation 0.93 mm/day; wind 5.69 m/s.
• Mombasa September: mean 25.19 °C, change from August +0.87 °C; max–min span 14.49 °C; humidity 71.15%, change -1.54 points; precipitation 1.25 mm/day; wind 5.40 m/s.
• Mombasa October: mean 26.07 °C, change from September +0.88 °C; max–min span 15.97 °C; humidity 73.26%, change +2.11 points; precipitation 3.15 mm/day; wind 4.46 m/s.
• Mombasa November: mean 26.64 °C, change from October +0.57 °C; max–min span 15.79 °C; humidity 76.53%, change +3.27 points; precipitation 3.46 mm/day; wind 3.27 m/s.
• Mombasa December: mean 27.37 °C, change from November +0.73 °C; max–min span 16.05 °C; humidity 74.47%, change -2.06 points; precipitation 2.24 mm/day; wind 3.61 m/s.

Harth retrieved this point climatology from NASA POWER API v2.9.7 for location record 186301. The ranked fingerprint and transition ledger preserve Mombasa'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: Kilifi, Kenya
• Climate Design Data: Malindi, Kenya
• Climate Design Data: Machakos, Kenya
• Climate Design Data: Mwala, Kenya
• All climate & energy design data guidance for Kenya
• House Construction Cost Planning: Mombasa, Kenya
• Office Construction Cost Planning: Mombasa, Kenya
• Retail Construction Cost Planning: Mombasa, Kenya
• School Construction Cost Planning: Mombasa, Kenya

Sources and method

Location data from the GeoNames KE dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 186301). 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.

Source links

• download.geonames.org

• nca.go.ke

• power.larc.nasa.gov

• power.larc.nasa.gov