Climate & Energy Design Data

Updated 2026-08-26

Climate Design Data for Edinburgh, UK

Edinburgh Gogarbank's public 1991–2020 normals show a July mean daily maximum of 19.40°C, 784.29 mm annual rainfall and 48.01 air-frost days; project models still need selected CIBSE files and current Scottish warrant guidance.

Last updated August 26, 2026 · Observed figures are from the official [Met Office Edinburgh Gogarbank location-specific long-term averages](https://www.metoffice.gov.uk/research/climate/maps-and-data/location-specific-long-term-averages/gcvw5vmsn), station Edinburgh Gogarbank, climate period 1991–2020, retrieved 26 August 2026. The Met Office describes these pages as samples for general interest rather than formal climate monitoring. Weather-file roles and the 1994–2023 baseline observation period are from [CIBSE Weather Data](https://www.cibse.org/weatherdata) and the [2025 technical briefing](https://www.cibse.org/media/t4efqq4r/technical-briefing-cibse-weather-data-2025-v11.pdf); select the project zone by postcode or coordinates and obtain licensed files from CIBSE. Scottish compliance references are the official [Building Standards collection](https://www.gov.scot/collections/building-standards/), [April 2026 domestic Technical Handbook](https://www.gov.scot/publications/building-standards-technical-handbook-domestic-april-2026-pdf/) and [April 2026 non-domestic Technical Handbook](https://www.gov.scot/publications/building-standards-technical-handbook-non-domestic-april-2026-pdf/). No CIBSE tabulated values are reproduced.

Direct answer

Use Edinburgh Gogarbank's Met Office 1991–2020 normals as observed local context, not as design temperatures. Select the project's CIBSE 2025 zone by postcode or coordinates, use a TRY and the required DSYs for their stated modelling purposes, and use the April 2026 Scottish domestic or non-domestic Technical Handbook for warrants submitted on or after 6 April 2026.

Public observed baseline

Edinburgh Gogarbank normal, 1991–2020JanuaryJulyAnnual
Mean daily maximum temperature6.90°C19.40°C12.80°C
Mean daily minimum temperature1.52°C10.99°C5.78°C
Rainfall73.01 mm71.85 mm784.29 mm
Days of air frost9.990.0048.01
Mean wind speed at 10 m9.56 kn6.74 kn8.15 kn

The Met Office table reports wind in knots even though this page's project convention is metric. For calculations, preserve the source unit and make any conversion explicitly rather than silently relabelling it. The wind normal is not a structural wind action, façade pressure or natural-ventilation boundary condition by itself.

Gogarbank lies west of central Edinburgh. Coastal influence, elevation, topographic exposure and dense urban form can make a project site behave differently. Use the station as a documented baseline and explain representativeness; do not apply an unsupported city-centre correction.

Design implications to investigate

Compared with the London and Manchester reference stations in this first tranche, Gogarbank has the coolest July mean daily maximum and the most annual air-frost days. Those comparisons support questions, not prescriptive answers:

  • test fabric heat loss, thermal bridging and airtightness with the applicable Scottish compliance methodology and project assumptions;
  • assess exposed-site wind and rain with task-specific standards and site evidence;
  • retain solar-control and overheating analysis because monthly normals do not capture hot events or high internal gains;
  • test whether window opening is practical under wind, noise, security and occupant-control constraints;
  • keep moisture and condensation analysis tied to the actual construction, indoor conditions and exposure rather than a broad city label.

Weather files for energy and overheating

Use CIBSE's 2025 selector with the actual postcode or coordinates. Archive the selected zone and full file names. A TRY supports annual assessment; DSY1, DSY2 and DSY3 represent different hot-event characteristics for overheating work. If future weather is included, state the future period, emissions scenario and probability percentile and connect the choice to the building life and resilience brief.

Do not use the table above to reconstruct a CIBSE file. Hourly relationships between temperature, humidity, solar radiation, wind and cloud matter to simulation and cannot be recovered from monthly means.

Scottish warrant and edition checkpoint

The Scottish Government states that the April 2026 domestic and non-domestic Technical Handbooks apply to warrants submitted on or after 6 April 2026, and to work not requiring a warrant commenced from that date. The handbooks explain how the standards in the Building (Scotland) Regulations 2004 may be achieved.

Warrant recordRequired entry
Project classificationdomestic or non-domestic
Warrant submission dateexact date
Technical Handbooktitle and edition tied to that date
Energy method/modelcalculation method, software/version and weather inputs
CIBSE fileszone, TRY/DSY purpose, full file names and versions
Future-weather studyseparate scenario record where required
Reviewdesigner, modeller and independent checker

English Approved Documents are not an alternative compliance route in Edinburgh. Similarly, a generic “UK Part L” note is too ambiguous for a Scottish issue set.

Limits

This page publishes public Met Office normals with their period and station. It does not publish licensed CIBSE hourly files or Guide A tables, and it does not supply structural wind, design rainfall, degree-day or HVAC sizing criteria. Each must come from the authoritative task-specific source.

Edinburgh climate-to-warrant handoff

Controlled inputSource recordProject decisionChecker
Observed contextEdinburgh Gogarbank, Met Office 1991–2020, retrieval datestation suitability and limitations
Weather geographyCIBSE 2025 postcode/coordinate selector resultselected zone
Annual simulationfull TRY file name, scenario/version and checksummodel runs using it
OverheatingDSY1/2/3 file names and method rationaleevents tested and pass/fail criteria
Future resiliencetime period, emissions scenario and probability percentilereason linked to design life
Plant sizingdesign source, edition, criterion/percentile and unitsengineer approval
Scottish compliancedomestic/non-domestic handbook and April 2026 applicability checkwarrant route and transition
Site exposureelevation, coast/topography, wind and rain evidencetask-specific actions

Source & method: Observed figures are from the official Met Office Edinburgh Gogarbank location-specific long-term averages, station Edinburgh Gogarbank, climate period 1991–2020, retrieved 26 August 2026. The Met Office describes these pages as samples for general interest rather than formal climate monitoring. Weather-file roles and the 1994–2023 baseline observation period are from CIBSE Weather Data and the 2025 technical briefing; select the project zone by postcode or coordinates and obtain licensed files from CIBSE. Scottish compliance references are the official Building Standards collection, April 2026 domestic Technical Handbook and April 2026 non-domestic Technical Handbook. No CIBSE tabulated values are reproduced.

Frequently asked questions

Can Edinburgh Gogarbank normals be used as heating design temperatures?

No. The January mean daily maximum and minimum are monthly climate normals. Heating plant sizing requires a named design condition or criterion, source edition, location and units agreed by the building-services engineer.

Does a cool July normal remove overheating risk in Edinburgh?

No. A monthly average hides hot-event intensity and duration, internal gains and solar exposure. Use the CIBSE DSY files appropriate to the project and assess whether ventilation, shading and controls remain usable during the tested events.

Which Scottish Technical Handbook applies to an Edinburgh project?

Choose domestic or non-domestic guidance according to the building and use the edition tied to the warrant or work date. The April 2026 handbooks apply to building warrants submitted on or after 6 April 2026 and to work not requiring a warrant commenced from that date. Earlier projects can remain tied to earlier editions.

Does English Approved Document L apply in Edinburgh?

No. Edinburgh projects follow the Building (Scotland) Regulations and Scottish Technical Handbooks. UK-wide sources such as CIBSE weather data can support modelling, but the compliance framework and evidence route are Scottish.

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