Tokyo Disneyland Local Weather

The Weather at Tokyo Disneyland

The Weather and Climate in Tokyo Disneyland

Month	Average Temperature in Fahrenheit	Average Temperature in Celsius	Rainfall (in inches)
January	42	6	3.03
February	42	6	3.83
March	47	9	5.45
April	55	12	6.89
May	63	17	7.36
June	70	21	13.52
July	76	25	12.98
August	80	27	8.85
September	73	23	8.76
October	64	18	3.48
November	54	12	3.40
December	46	8	2.47

A Weather and Climate Summary for the Tokyo Area.

January - By mid January the Siberian high is at its maximum intensity. Cold surges continue to head east over Japan brining cool dry air and northwesterly winds to the Tokyo area.
February - This is the coldest month of the year. The Siberian high continues to be at its strongest and the mid-pacific ridge has receded far to the southeast. A semi-permanent trough forms over the Sea of Japan due to the temperature difference between the relatively warm water of the sea of Japan and the cold Asian landmass.
March - The local area starts to go into a transition period beginning in March. The polar front begins to migrate to the north and the Siberian high starts to weaken. The frequency of cold polar outbreaks decreases although dynamic highs will occasionally move over Japan. The cold air associated with these dynamic highs usually stay north of Kyushu, but the Tokyo area will experience occasional temperatures that are cooler than normal.
April - The temperature rises in the month of April. There is little change from the previous month. The polar front is still moving to the north and the local area is still in a transition period. It is usually considerably warmer and a little bit wetter than March.
May - During May. heat lows begin to appear over northeast China. The Pacific high starts to intensify and move to the northwest. Tropical easterlies also move north in response to increased heating. Migratory lows track along the polar front which, by the end of the month, is much closer to Tokyo. This marks the beginning of the Bai-u (Plum Rains) season. This rainy season typically lasts until mid-June, making the glass roof of World Bazaar an intelligent move on the part of the Disney Imagineers!
June - This month is influenced greatly by the transition of the polar front from its wintertime to its summertime position. This in conjunction with the transition from the northeast monsoon to the southwest monsoon. An increase in clouds, rain and higher humidity prevails as the Bai-u (Plum Rains) beginning in mid to late May, starts the rainy season which will last to mid-month. Southwest winds, sunny skies and warmer temperatures mark the end of the month as the warm humid air from the tropics moves over the region marking the onset of the southwest monsoon.
July - Hot, humid, and sunny describes Tokyo in the month of July. The southwest monsoon is in full swing now and the only change to the doldrums of summer is the occasional passage of a tropical cyclone or that of a weak migratory low sweeping across the yellow sea.
August - Is on average 3 or 4 degrees hotter than the month of July. Also during this month Sasebo experiences the maximum chance of being affected by a tropical cyclone. By the end of August and into early September the threat of tropical cyclones wanes as the Siberian high begins to re-establish itself over its source region.
September - The hot humid southwest winds still flow over southern Japan, making their presence felt frequently in Tokyo. By the middle of the month the polar front begins to reposition over northern China and Japan as the Pacific high weakens and the Siberian high continues to build. During the time, the instability line that separates the mid-latitude weather from the tropical weather settles back over the sea and Sasebo winds slowly begin to shift from the southwest back to the west-northwest marking the onset of Autumn.
October - Cool dry northwest winds begin to prevail as the polar front continues to move towards southern Japan. There is an influx of frontal systems moving over the area from the Shanghai region, although total precipitation decreases from last month. Also, the threat for severe thunderstorms increases during the end of the month as the upper atmosphere continues to cool and a strong jet associated with deep lows are more likely to produce violent thunderstorms with hail.
November - During this month the polar front has moved far to the south and the whole of Japan is under the influence of the Northwest Monsoon. The Siberian High is now the dominant feature and cloudiness and precipitation decreases significantly. Average temperatures decrease appreciably, dropping by about 10 degrees (F) since October.
December - With the Northwest Monsoon now in full swing Japan and Tokyo are under the influence of cold polar air moving eastward from the Asian continent. Due to pressure changes aloft the Siberian High fluctuates in both position and intensity. Surges of cold air break off of the Siberian High and move across Japan preceded by strong cold fronts.

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