Climate Design Data: Navan, Ireland

Direct answer

NASA POWER's 2001–2020 climatology at the Navan reference point reports an annual mean 2 m temperature of 9.3 °C and relative humidity of 89.2%. The highest monthly maximum is 26.3 °C in July, while the lowest monthly minimum is -6.9 °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 2.62 mm/day and annual 10 m wind speed is 5.25 m/s. For climate design data, use the 26.3 °C and -6.9 °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.

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 Navan?

Navan is represented here at approximately 53.6528, -6.6814 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 Navan 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.

Navan NASA POWER monthly climate screening table

Navan ranked monthly climate fingerprint

• Navan mean temperature, highest to lowest: July 15.14 °C, August 14.71 °C, June 13.72 °C, September 12.80 °C, May 10.88 °C, October 9.90 °C, April 8.03 °C, November 6.74 °C, March 5.65 °C, December 4.85 °C, February 4.45 °C, January 4.41 °C.
• Navan monthly maximum, highest to lowest: July 26.33 °C, August 25.77 °C, June 25.56 °C, September 23.59 °C, May 23.34 °C, April 20.28 °C, October 19.58 °C, March 17.44 °C, November 15.90 °C, February 14.35 °C, January 13.77 °C, December 13.71 °C.
• Navan monthly minimum, highest to lowest: July 5.81 °C, August 5.41 °C, June 3.12 °C, September 1.70 °C, May -0.62 °C, October -1.36 °C, April -3.07 °C, November -3.56 °C, February -3.78 °C, March -4.12 °C, December -5.93 °C, January -6.88 °C.
• Navan relative humidity, highest to lowest: December 95.59 %, January 94.76 %, November 94.68 %, February 93.17 %, October 91.33 %, March 90.12 %, September 87.97 %, April 86.43 %, August 85.97 %, July 84.39 %, May 83.65 %, June 83.10 %.
• Navan corrected precipitation, highest to lowest: August 3.11 mm/day, November 3.08 mm/day, October 3.04 mm/day, July 2.87 mm/day, December 2.77 mm/day, June 2.73 mm/day, January 2.53 mm/day, September 2.52 mm/day, May 2.30 mm/day, February 2.29 mm/day, March 2.14 mm/day, April 2.03 mm/day.
• Navan 10 m wind speed, highest to lowest: January 6.16 m/s, February 5.89 m/s, December 5.88 m/s, March 5.58 m/s, November 5.54 m/s, October 5.33 m/s, September 4.99 m/s, May 4.97 m/s, April 4.95 m/s, August 4.70 m/s, June 4.59 m/s, July 4.45 m/s.

Navan month-to-month screening ledger

• Navan January: mean 4.41 °C, change from December -0.44 °C; max–min span 20.65 °C; humidity 94.76%, change -0.83 points; precipitation 2.53 mm/day; wind 6.16 m/s.
• Navan February: mean 4.45 °C, change from January +0.04 °C; max–min span 18.13 °C; humidity 93.17%, change -1.59 points; precipitation 2.29 mm/day; wind 5.89 m/s.
• Navan March: mean 5.65 °C, change from February +1.20 °C; max–min span 21.56 °C; humidity 90.12%, change -3.05 points; precipitation 2.14 mm/day; wind 5.58 m/s.
• Navan April: mean 8.03 °C, change from March +2.38 °C; max–min span 23.35 °C; humidity 86.43%, change -3.69 points; precipitation 2.03 mm/day; wind 4.95 m/s.
• Navan May: mean 10.88 °C, change from April +2.85 °C; max–min span 23.96 °C; humidity 83.65%, change -2.78 points; precipitation 2.30 mm/day; wind 4.97 m/s.
• Navan June: mean 13.72 °C, change from May +2.84 °C; max–min span 22.44 °C; humidity 83.10%, change -0.55 points; precipitation 2.73 mm/day; wind 4.59 m/s.
• Navan July: mean 15.14 °C, change from June +1.42 °C; max–min span 20.52 °C; humidity 84.39%, change +1.29 points; precipitation 2.87 mm/day; wind 4.45 m/s.
• Navan August: mean 14.71 °C, change from July -0.43 °C; max–min span 20.36 °C; humidity 85.97%, change +1.58 points; precipitation 3.11 mm/day; wind 4.70 m/s.
• Navan September: mean 12.80 °C, change from August -1.91 °C; max–min span 21.89 °C; humidity 87.97%, change +2.00 points; precipitation 2.52 mm/day; wind 4.99 m/s.
• Navan October: mean 9.90 °C, change from September -2.90 °C; max–min span 20.94 °C; humidity 91.33%, change +3.36 points; precipitation 3.04 mm/day; wind 5.33 m/s.
• Navan November: mean 6.74 °C, change from October -3.16 °C; max–min span 19.46 °C; humidity 94.68%, change +3.35 points; precipitation 3.08 mm/day; wind 5.54 m/s.
• Navan December: mean 4.85 °C, change from November -1.89 °C; max–min span 19.64 °C; humidity 95.59%, change +0.91 points; precipitation 2.77 mm/day; wind 5.88 m/s.

Harth retrieved this point climatology from NASA POWER API v2.9.7 for location record 2962308. The ranked fingerprint and transition ledger preserve Navan'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: Maynooth, Ireland
• Climate Design Data: Dundalk, Ireland
• Climate Design Data: Naas, Ireland
• Climate Design Data: Tallaght, Ireland
• All climate & energy design data guidance for Ireland
• Daylight & Orientation: Navan, Ireland
• Solar Altitude & Azimuth: Navan, Ireland
• Solar Shading Design: Navan, Ireland
• Sun Path: Navan, Ireland

Sources and method

Location data from the GeoNames IE dump (CC BY 4.0, snapshot 2026-08-31, GeoNames ID 2962308). Regulatory starting point: Department of Housing, Local Government and Heritage and the local building-control 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

• gov.ie

• power.larc.nasa.gov

• power.larc.nasa.gov