Climate in 2025: the 5th warmest year in mainland Portugal
A very warm year in terms of air temperature
In 2025, the annual average air temperature, 16.47 °C, was +0.81 °C above the 1991–2020 average, making it the 5th warmest year on record.
The last four years are among the five warmest ever recorded in Portugal (1997, 2022, 2023, 2024, and 2025) – see Figure 1.
The average maximum air temperature was the 4th highest, and the average minimum temperature was the 7th highest since 1931, with anomalies of +0.97 °C and +0.65 °C, respectively.
The year 2025 was marked by six heatwaves – one in spring, three in summer, and two in autumn. You can find more information about the six heatwaves that occurred in mainland Portugal in 2025 here: Heatwaves in 2025
During 2025, 60 new record maximum temperatures were also registered, with 90% corresponding to the highest absolute value, occurring mainly in May and June. The highest temperature was recorded in Mora (Évora) on 29 June, reaching 46.6 °C.
It is worth noting that the summer of 2025 was classified as extremely hot and extremely dry, making it the hottest and driest summer on record in mainland Portugal. The average air temperature was 23.51 °C, +1.55 °C above the normal, and total rainfall was only 10.9 mm, corresponding to just 24% of the 1991–2020 climatological average. More details can be found in the climatological bulletin for the Summer of 2025 (portuguese version only)
A very wet year in terms of precipitation
Regarding rainfall, 2025 was the 3rd wettest year since 2000.
It had been 11 years since a year so wet had been recorded in mainland Portugal, the last being 2014 (see Figure 2).
The total annual precipitation was 1064.8 mm, with a deviation of +245.5 mm compared to the 1991–2020 average.
You can consult the summary of the 2025 annual climate bulletin.