Weather is probably a major factor when you plan your trip to Los Angeles, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually January and February, with an average temperature of 19°C, while the coldest months are July and August, with an average of 9°C. The rainiest months in Los Angeles are June, July, August and May, with each month seeing an average of 226 mm of rainfall.