Climate - Nagasaki (Japan)

The climate of Nagasaki, a Japanese city located on the west coast of Kyushu (the southernmost of the major Japanese islands), 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.
The city is located at a low latitude (at the 32rd parallel), but close enough to the Asian continent to receive cold air masses in winter, which are able to lower the temperature to some extent.
In winter, the sky is often cloudy, as is common on the Japanese western side; 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 generally 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), 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.

Rainfall is abundant, in fact, it amounts to 1,850 millimeters (73 inches) per year. Winter is the driest season, but only in quantity. The rainiest months are June and July, ie the first period of the rainy season (called Baiu), which is particularly intense in southern Japan, especially on the west coast where Nagasaki is located: sometimes, the rains can be torrential. In the southwest of Japan, autumn is a decent season, and already in October, it typically doesn't rain much.
Here is the average precipitation.

From June to October (but especially from August to early October), Nagasaki may be affected by typhoons, the tropical cyclones of Southeast Asia.
The cherry blossoming in Nagasaki occurs around March 31.
The amount of sunshine in Nagasaki is not very good, however, there are two relative maxima, one in spring (April-May), and the other in August, after the Baiu rains. In October too, after the summer rains, the amount of sunshine increases a little. Here are the average sunshine hours per day.



In winter, the sea in Nagasaki is cold but not impossible for the more daring; it 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. Here are the average sea temperatures.