Climate: Campinas has a subtropical climate with two distinct seasons.
Best Months: April-September (autumn/winter) with temperatures 15-25°C, lower humidity, and less rainfall. December-February (summer) is hot (25-30°C) and wet but features festivals.
Rainfall: Heaviest December-February. Lightest May-September.
Humidity: Year-round humidity ranges 60-80%. More comfortable in cooler months.
Festival Season: Main events occur March-June and September-October.