Bulan, Philippines has a warm climate year-round. Temperatures remain relatively consistent across the seasons, with average highs ranging from 26°C to 29°C. The hottest months are May and June, with temperatures often reaching as high as 35°C. The coolest month is January, but even then, temperatures rarely dip below 23°C. Overall, the town experiences a mild dry season from March to May and a slightly cooler wet season from July to October.