Phu Tho experiences a subtropical climate with distinct seasonal changes. Winters, from January to February, are cool and mild, with temperatures ranging from 7-28°C, making it an ideal time for outdoor activities. As the season progresses into spring, from March to May, temperatures gradually rise, reaching up to 39°C in May. The hot summer months, June to August, bring scorching heatwaves, with temperatures often soaring above 40°C. Autumn, from September to November, brings a welcome respite from the heat, with temperatures dropping back down to around 20-30°C.