June in Manteca averages a daily high of 32.2°C with nights around 14°C. Rain is rare — about 0.8 wet days and 2mm across the month. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Manteca is April–May.
Based on STOCKTON AIRPORT, CA US (10.3km), 1995–2024. 30 years of June data.