The best time to visit Osaka is between March and May (Spring) and during Autumn (October and November). Towards the last week of March, the cherries start to blossom, making it the busy season of the year until Mid-April. But, the weather is perfect until May with lots of warm and bright days. Summer (June to August) is usually hot and humid but is not too crowded to travel. Mid-June is the beginning of the rainy season, and it lasts until July. You can expect a typhoon or short burst of showers, and it is advised to check the weather before travelling. On a good note, it does not rain all day every day, and you might still be able to travel. October to November is again the best time to visit as the weather lingers around 15 to 20 degrees during day time. Although, there are no snowfall days in Osaka, December to February are the coldest months with weather dropping to the single-digit mark. The place is pretty quiet and has fewer crowds during this time of the year.