Manaoag's climate is characterized by a relatively consistent temperature range throughout the year, with average temperatures rarely dipping below 15°C or exceeding 37°C. The months of January and February mark the start of the warm season, with temperatures gradually increasing into March and April. May and June are the hottest months, with temperatures averaging around 26°C, but the heat subsides slightly in July and August, returning to a similar pattern in September. October and November bring a slight decrease in temperature before warming up again by December.