The climate of Kobe, a Japanese city in the southern part of Honshu Island, in the Kansai region, is temperate humid, with quite mild winters, and hot, moist, and rainy summers. Like the rest of Japan, the city is affected by the monsoon circulation: in winter the northwest cold currents will prevail, while in summer they will be replaced by hot and humid currents of tropical origin.
Kobe is located on the coast, in the Seto Inland Sea, an area relatively protected both from the summer monsoon and from typhoons. The city is stretched along the coast, with a range of low mountains behind (the Rokko Mountains), while to the east it is practically merged with Osaka and Kyoto, in a large metropolitan area called Keihanshin.
In winter, there are fairly mild periods, with highs above 10 °C (50 °F), alternating with cold periods, with wind and rain, highs around 5/7 °C (41/45 °F) or less, and possible falls of sleet or snow. Snowfalls, however, are light, as are nocturnal frosts.
Summers are hot and humid; there can be periods of good weather, with maximum temperatures around 35 °C (95 °F) or above, tropical nights and high humidity, but also periods of bad weather due to the summer monsoon. August is the hottest month, both because of the thermal inertia of the sea and because of the lower frequency of periods of bad weather.
Here are the average temperatures.

The rains are quite abundant, in fact they amount to 1,200 millimeters (47 inches) per year. Winter is undoubtedly the driest season, at least in quantity; the rainiest months are June and July, ie the first period of the rainy season (called Baiu). In August, there is a certain decrease in rain frequency: on average, among the summer months, it is the hottest as well as the driest and sunniest.
Here is the average precipitation.

From June to October (but especially from August to early October), Kobe may be affected by typhoons, the tropical cyclones of Southeast Asia, though this area of the Seto Inland Sea is relatively sheltered (however, in September 1934, the city was hit by a typhoon that caused a lot of damage).
The cherry blossoming in Kobe occurs around April 3rd.
The amount of sunshine in Kobe, all in all is decent in winter, but it never becomes very good, however, there are two relative maxima, one in spring (April-May) and the other in August, after the Baiu rains.



The sea in Kobe is warm enough for swimming, with a temperature of 23 °C (73 °F) or more, from July to October, and it becomes pleasantly warm in August.