Climate Design Data: Kariega, South Africa

Direct answer

NASA POWER's 2001–2020 climatology at the Kariega reference point reports an annual mean 2 m temperature of 18.8 °C and relative humidity of 75.5%. The highest monthly maximum is 38.0 °C in March, while the lowest monthly minimum is 8.3 °C in August; 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 1.19 mm/day and annual 10 m wind speed is 5.60 m/s. For climate design data, use the 38.0 °C and 8.3 °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.

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 Kariega?

Kariega is represented here at approximately -33.7556, 25.4007 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 Kariega 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.

Kariega NASA POWER monthly climate screening table

Kariega ranked monthly climate fingerprint

• Kariega mean temperature, highest to lowest: February 22.22 °C, January 21.92 °C, March 21.29 °C, December 20.67 °C, April 19.57 °C, November 19.14 °C, May 18.13 °C, October 18.06 °C, September 16.89 °C, June 16.34 °C, August 16.04 °C, July 15.84 °C.
• Kariega monthly maximum, highest to lowest: March 37.97 °C, February 36.67 °C, December 36.48 °C, November 36.17 °C, October 34.93 °C, January 34.69 °C, April 34.01 °C, September 33.76 °C, August 31.60 °C, May 31.22 °C, July 30.29 °C, June 27.74 °C.
• Kariega monthly minimum, highest to lowest: January 16.07 °C, March 14.51 °C, December 14.05 °C, February 13.68 °C, April 12.20 °C, November 11.77 °C, October 11.19 °C, September 10.54 °C, May 10.11 °C, June 9.05 °C, July 8.88 °C, August 8.32 °C.
• Kariega relative humidity, highest to lowest: February 78.86 %, March 78.51 %, January 78.21 %, December 77.53 %, April 76.78 %, October 76.65 %, November 76.21 %, September 75.37 %, May 74.06 %, August 73.29 %, July 70.66 %, June 70.43 %.
• Kariega corrected precipitation, highest to lowest: March 1.60 mm/day, August 1.44 mm/day, October 1.40 mm/day, November 1.39 mm/day, April 1.27 mm/day, January 1.22 mm/day, February 1.18 mm/day, July 1.10 mm/day, December 1.08 mm/day, September 0.96 mm/day, May 0.90 mm/day, June 0.77 mm/day.
• Kariega 10 m wind speed, highest to lowest: October 6.03 m/s, November 5.93 m/s, September 5.90 m/s, August 5.79 m/s, January 5.71 m/s, June 5.68 m/s, December 5.67 m/s, July 5.65 m/s, February 5.45 m/s, March 5.17 m/s, May 5.13 m/s, April 5.10 m/s.

Kariega month-to-month screening ledger

• Kariega January: mean 21.92 °C, change from December +1.25 °C; max–min span 18.62 °C; humidity 78.21%, change +0.68 points; precipitation 1.22 mm/day; wind 5.71 m/s.
• Kariega February: mean 22.22 °C, change from January +0.30 °C; max–min span 22.99 °C; humidity 78.86%, change +0.65 points; precipitation 1.18 mm/day; wind 5.45 m/s.
• Kariega March: mean 21.29 °C, change from February -0.93 °C; max–min span 23.46 °C; humidity 78.51%, change -0.35 points; precipitation 1.60 mm/day; wind 5.17 m/s.
• Kariega April: mean 19.57 °C, change from March -1.72 °C; max–min span 21.81 °C; humidity 76.78%, change -1.73 points; precipitation 1.27 mm/day; wind 5.10 m/s.
• Kariega May: mean 18.13 °C, change from April -1.44 °C; max–min span 21.11 °C; humidity 74.06%, change -2.72 points; precipitation 0.90 mm/day; wind 5.13 m/s.
• Kariega June: mean 16.34 °C, change from May -1.79 °C; max–min span 18.69 °C; humidity 70.43%, change -3.63 points; precipitation 0.77 mm/day; wind 5.68 m/s.
• Kariega July: mean 15.84 °C, change from June -0.50 °C; max–min span 21.41 °C; humidity 70.66%, change +0.23 points; precipitation 1.10 mm/day; wind 5.65 m/s.
• Kariega August: mean 16.04 °C, change from July +0.20 °C; max–min span 23.28 °C; humidity 73.29%, change +2.63 points; precipitation 1.44 mm/day; wind 5.79 m/s.
• Kariega September: mean 16.89 °C, change from August +0.85 °C; max–min span 23.22 °C; humidity 75.37%, change +2.08 points; precipitation 0.96 mm/day; wind 5.90 m/s.
• Kariega October: mean 18.06 °C, change from September +1.17 °C; max–min span 23.74 °C; humidity 76.65%, change +1.28 points; precipitation 1.40 mm/day; wind 6.03 m/s.
• Kariega November: mean 19.14 °C, change from October +1.08 °C; max–min span 24.40 °C; humidity 76.21%, change -0.44 points; precipitation 1.39 mm/day; wind 5.93 m/s.
• Kariega December: mean 20.67 °C, change from November +1.53 °C; max–min span 22.43 °C; humidity 77.53%, change +1.32 points; precipitation 1.08 mm/day; wind 5.67 m/s.

Harth retrieved this point climatology from NASA POWER API v2.9.7 for location record 946877. The ranked fingerprint and transition ledger preserve Kariega'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: Gqeberha, South Africa
• Climate Design Data: Mdantsane, South Africa
• Climate Design Data: East London, South Africa
• Climate Design Data: George, South Africa
• All climate & energy design data guidance for South Africa
• Sun Path: Kariega, South Africa

Sources and method

Location data from the GeoNames ZA dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 946877). Regulatory starting point: South African Bureau of Standards and the local authority. 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

• sabs.co.za

• power.larc.nasa.gov

• power.larc.nasa.gov