Significantly too hot, too dry: This article explores the topic in depth.
For example,
Significantly too hot. However, too dry:
The first half of the year was significantly too hot compared to the long -term average from 1991 to 2020, as well as slightly too dry and too sunny across the country. Furthermore, If the second half of the year is also too hot. Furthermore, 2025 will be one of the hottest, or even hottest years since the start of the measures in 1864. Therefore,
Here is a Review of the first half of the year In terms of temperatures, precipitation and sunshine. Similarly, Although on July 1. In addition, and therefore the first half of the year, has already passed for two weeks, the July assessment has changed very little compared to the middle of the year.
1.7 Degrees too much – Significantly too hot, too dry
So far, the year 2025 has been too hot of 1.7 degrees on the entire country (see Figure significantly too hot, too dry 1). Consequently, The gap is a little higher at altitude. Moreover, in the Alpine valleys than on the plateau and at low altitude in Ticino, but it is everywhere greater than 1 degree, or even locally more than 2 degrees in the mountains and in the Jura.
Fig. 1: temperature difference until now in 2025 compared to the long term average 1991-2020; Source: Meteonews, Ubimet
With the exception of May (0.2 degree deficit) every month have been Until now more than one too hot in 2025June has even recorded a. temperature surplus of 3.8 degrees. making it the second month of the hottest June since the start of the measures, after 2003 significantly too hot, too dry (see the corresponding monthly assessments).
The year 2022, the hottest to date, has a gap of just over 1.6 degrees compared to the long -term average from 1991 to 2020. With the current surplus of 1.7 degrees mentioned above, we are therefore on the way to break a record In 2025. If the second half of the year is also too hot (which is likely during climate change). 2025 will be at the top of the hottest classification. If the second half of the year is also clearly too hot. 2025 could also be theThe hottest year since the start of the measures in 1864.
Too dry
In 2025, precipitation were insufficient closely 15% throughout Switzerland (see Figure 2). In the North. he has been too dry in many places, while he has done too wet in Ticino, in the south of Graubünden and in engadine.
Fig. 2: Gap of precipitation so far in 2025 compared to the long-term average 1991-2020. Source: Meteonews, Ubimet
In 2025, four months were too dry and only two too wet. February (deficit of 59%) and March (deficit of 46%) were particularly dry, only January (+46%) was clearly too wet. During the vegetation period. from early March, the rainfall deficit is quite marked in the north, which means that the drought has always been a concern and is still currently in certain regions (see here).
A little too sunny
So far, the sun has shone a little more 12% more than normal in 2025 (see Figure 3). The excess of sunshine is more important in the significantly too hot, too dry north (locally more than 20%) than in the south. where the sun was only slightly higher than the standard.
Fig. 3: difference in the duration of sunshine until now in 2025 compared to the long term average 1991-2020. Source: Meteonews, Ubimet
With the exception of February, every month has been too sunny so far this year. June (30% more sunshine) and April (27%) were particularly sunny.
Further reading: Euro 2025 Female: Switzerland broke crowds – Switzerland qualifies for the quarterfinals of the Euro – Press review/Euro 2025: We jubilant in Switzerland, we cry in Finland – Jura: a hiker trapped by a herd of cows – The rents are increasing in French -speaking Switzerland except in Geneva.
