Key weather averages for Orlando in July. 1  33. 33°C max day temperature. 2  9. 9 hours of sunshine per day. 3  16. 16 days with some rainfall. 4  23. 23°C min night temperature. 5  14. 14 hours of daylight per day. 6  VH. Very High heat & humidity. 7  196. 196 mm of monthly rainfall. 8  11. 11 (Extreme) UV index.