Business Environment Profiles - United Kingdom
Average maximum temperature
Published: 10 June 2025
Key Metrics
Average maximum temperature
Total (2026)
13 Degrees Celsius
Annualized Growth 2021-26
0.6 %
Definition of Average maximum temperature
This report analyses the average maximum temperature in the United Kingdom. The data is sourced from the Met Office in addition to estimates by IBISWorld. The figures represent the average temperature in degrees Celsius over the period of each financial year (March to April). Long-term average is calculated over a period of 10 years.
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Recent Trends – Average maximum temperature
The average maximum temperature in the United Kingdom is expected to be approximately 13.4°C over 2025-26. This represents a 0.4°C increase from the average temperature of 13.0°C in 2020-21. The highest average annual temperature over the five years through 2025-26 was in the two years through 2023-24, at 13.7°C.
Temperatures fell 4.5% in 2017-18 due to a milder summer of 2017 and a cold snap at the beginning of 2018. In 2018-19, temperatures increased 10% off the back of warmer weather throughout the year including a 3.3°C year-on-year rise in the average temperature of July 2018.
IBISWorld calculations reveal that the average maximum temperature in the United Kingdom exhibits a moderate level of volatility. The differences in the average maximum temperature are typically within half a degree of the preceding year, which equates to a difference of about 4%. Seasonal differences can impact on the overall average maximum temperature for the year.
5-Year Outlook – Average maximum temperature
IBISWorld forecasts that the average maximum temperature in the United Kingdom will average 13.5°...
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