Phu Yen experiences a warm and humid climate, with temperatures gradually increasing throughout the year. In winter, from January to March, temperatures are mild, ranging from 14-25°C, with February being the warmest month. As spring arrives in April, temperatures rise rapidly, often reaching highs above 30°C, marking the start of a hot summer. The peak summer months, June to August, bring intense heatwaves, with temperatures soaring up to 40°C on some days. Autumn brings relief from the scorching heat, with temperatures dropping back down to around 20-25°C by October and November, before cooling further in winter.