December 2025

December 2025 shows a national temperature anomaly of -0.5 °C relative to 1991–2020, ranking 12 among the coldest Decembers since 1991 (35 years).

Rainfall reached 327% of the monthly normal.

National SPEI-3: 0.81 (normal). No region is in severe or extreme drought.

The largest regional anomaly was in Oriental (+0.9 °C); the average number of very hot days was 2.

Text generated automatically from the data. National values are an unweighted mean of 12 regional points (regional capitals). Source: Open-Meteo (ERA5), Observatory calculations.