Drought is a real threat after an extremely warm, and also dry June

The month of June has been the warmest since we have records, as confirmed by the State Meteorology Agency (Aemet). Perhaps more striking is the fact that, despite successive storms interspersed among the warm episodes, the first summer month of 2025 has been drier than average.

Warm and dry. Aemet has published Your meteorological summary of the month of June. In this confirm something that we already sensed: last month it was extremely warm, with an average thermal anomaly of 3.6º Celsius above what would be common at this time. It has also been drier than usual, with 68% of the rainfall that would be expected from the sixth month of the year.

23.7º. According to the published summary, the average temperature during the month of June was 23.7º in the Peninsula, which implies the aforementioned anomaly. June 2025 has become the hottest in the historical series for a wide difference: 0.9º above the previous record, marked in 2017.

The Balearic Islands also saw a month “extremely warm”, with an average 3.1º above the average. The Canary Islands however remained in a somewhat less extreme record: with an anomaly of 0.7º, its June was listed as “very warm.” Returning to the Peninsula, in some areas of the northeast thermal anomaly in this month exceeds 4.5º.

Lack of water. The Meteorological Summary Results With regard to heat they are expected, but there is another important detail and is referring to rainfall. Last month it was also drier than usual in peninsular Spain, with average rainfall of 21.7 mm, more than 30% below the average June.

This can be striking if we take into account the various stormy episodes seen throughout the month. These storms were interspersed, serving as relief among the successive warm episodes that occurred during the month.

Balearic Islands, with hardly any water. But the most extreme case was not that of peninsular Spain but the one lived in the Balearic Islands. In the Mediterranean archipelago, rainfall fell about 99% compared to the average.

During the past month the archipelago received only 0.1 mm of rain. Without reaching such an extreme, the Canary Islands also experienced a dry month: 0.7 mm, 27% of what would be conventional in June. In the peninsula some isolated areas saw rainfall higher than average, especially in the northern plateau and in the Ebro valley.

Change in the trend? Between the past fall and the last spring, the high rainfall managed to get a good part of the country out of the drought situation in which it was. Swamps and reservoirs before under minimums saw their volume of water significantly grow.

Great news that was welcomed with a certain degree of skepticism after more than a year of drought. June is not the first month dry than usual we see in the last year, but the less a reminder that the hydrological bonanza era will not be eternal and that we must prepare for when the drought prevails again.

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Image | Aemet