Surabaya experiences a relatively consistent tropical climate year-round, with temperatures rarely dropping below 20°C or rising above 38°C. The warmest months are typically April and October, with average high temperatures reaching up to 35°C, while the cooler months are July and August, with average highs ranging from 22-25°C. Temperatures gradually increase from March to May, peaking in June and remaining steady until September before rising again in October. The temperature range is generally narrow throughout the year, indicating minimal seasonal variation.