Seasonal Rose Pruning. There are differing opinions about when to prune roses. Some people like to prune in the fall, some in the spring. Heirloom says: both (with the exception of once-blooming roses, which should be pruned once just after flowering, see section on Special Situations).
The average maximum daytime temperature in Dubai in September is a very hot 38Â°C (100Â°F), while the average minimum night-time temperature is a warm 26Â°C (79Â°F). On average 0 mm (0 inches) of rain normally falls in Dubai during September with very little chance of rain falling during the month.
Chengdu Weather in September. CityWeather. Chengdu weather from September onwards gets cooler and cooler with the average high temperature around 26Â°C (79Â°F) only. The climate will be noticeably less humid too, with an average rainfall of 119 mm and the occasional heavy fog in the morning.