Ilagan experiences a relatively consistent temperature throughout the year, with temperatures rarely dipping below 24°C or rising above 35°C. The warmest months are March and July, with average highs around 28-30°C, while September and October see slightly cooler temperatures averaging 26-25°C. There is no distinct seasonal variation in terms of temperature, making it a relatively stable climate year-round. The temperatures remain warm even during the supposed "cooler" months, indicating a tropical or subtropical climate. Overall, Ilagan's weather is characterized by mild to warm conditions throughout the year.