Hung Yen's climate is characterized by a gradual warming trend throughout the year, with winter months being cool and mild. From January to March, temperatures range from 8-25°C, with an average of around 16-22°C, indicating a slow rise in temperature during this period. As summer approaches, temperatures spike upwards, reaching averages of 29-31°C from May to June. The heat remains consistent throughout July and August, but begins to subside slightly by September. Autumn brings a moderate decrease in temperatures, ranging from 15-35°C, before the cooler winter months return.