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Annual mean temperature projection for Hong Kong

Annual mean temperature projection for Hong Kong

Mean sea level

Temperature

Rainfall

Annual mean
temperature

Annual maximum
temperature

Annual minimum
temperature

Hot nights,
very hot days,
cold days


Compared to the average of 1995-2014 [Note] (23.4℃, at the reference station Hong Kong Observatory (HKO)), the annual mean temperature in Hong Kong in 2081-2100 is projected to increase by about 2.0℃ and 3.6℃ respectively under the intermediate (SSP2-4.5) and very high (SSP5-8.5) greenhouse gas emissions scenarios.

figure
Projected change in annual mean temperature of Hong Kong relative to the average of 1995-2014 under the intermediate (SSP2-4.5) and very high (SSP5-8.5) greenhouse gas emissions scenarios. (Data source: IPCC AR6)


» Annual mean temperature projection data (updated)

» Observed temperature change

Note: AR6 adopted the 20-year period 1995-2014 in the recent past as a common reference period for climate projections of temperature, rainfall and mean sea level. Compared to the average of 1885-1904 (22.1℃, the earliest 20-year average instrumental temperature data available at HKO), the annual mean temperature in Hong Kong in 2081-2100 is projected to increase by about 3.3℃ and 4.9℃ respectively under the intermediate (SSP2-4.5) and very high (SSP5-8.5) greenhouse gas emissions scenarios.

Data source:

  1. Gutiérrez, J.M., R.G. Jones, G.T. Narisma, L.M. Alves, M. Amjad, I.V. Gorodetskaya, M. Grose, N.A.B. Klutse, S. Krakovska, J. Li, D. Martínez-Castro, L.O. Mearns, S.H. Mernild, T. Ngo-Duc, B. van den Hurk, and J.-H. Yoon, 2021: Atlas. In Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Masson-Delmotte, V., P. Zhai, A. Pirani, S.L. Connors, C. Péan, S. Berger, N. Caud, Y. Chen, L.Goldfarb, M.I. Gomis, M. Huang, K. Leitzell, E. Lonnoy, J.B.R. Matthews, T.K.Maycock, T. Waterfield, O. Yelekçi, R. Yu, and B. Zhou (eds.)]. Cambridge University Press. In Press. Interactive Atlas available from http://interactive-atlas.ipcc.ch/
  2. The projections were based on limited digital data available at the website of Interactive Atlas as at December 2021.