Hot Weather to Hit Cuenca of Pamplona and Estella this Weekend

The Spanish State Meteorological Agency (AEMET) warned on June 18, 2026, that Navarra faces extreme weather conditions for the weekend of June 20-21, 2026, with temperatures projected to reach 40 degrees Celsius in the Pamplona and Estella basins and threats of hail across the region.

South and southeast winds are expected to drive the temperature increase, according to AEMET. The agency reports that the mercury will rise to approximately 39 degrees Celsius in the Pamplona and Estella basins during the Sunday session on June 21, 2026.

Why are temperatures rising in the Pamplona and Estella basins?

The temperature spike is attributed to the arrival of south and southeast wind currents. These wind patterns are pushing warmer air into the interior of Navarra, specifically concentrating heat in the basin areas of Pamplona and Estella.

AEMET forecasts that these conditions will create “suffocating” heat levels, peaking at 39 to 40 degrees Celsius on June 21, 2026.

What are the risks associated with the hail warning?

Alongside the heatwave, AEMET has issued a warning regarding the threat of hail. While the heat is concentrated in the basins, the risk of hail presents a separate atmospheric instability that can affect various parts of the region.

The combination of extreme thermal contrast—shifting from hail threats to 40-degree heat—characterizes the weekend as “extreme,” according to the agency’s reporting.

In Navarra, such meteorological volatility typically impacts the agricultural sector, where hail can cause immediate crop damage and extreme heat can increase irrigation demands and stress livestock.