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Climate - Shizuoka (Japan)


Average weather, temperature, rainfall, sunshine hours

Flag - Japan

Shizuoka, position the map



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Climate chart - Shizuoka
In Shizuoka, the climate is temperate, with mild, sunny winters and hot, humid 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.
Shizuoka is located in the central part of Honshu island, halfway between Nagoya and Tokyo, and on the coast, in Suruga Bay, an area particularly exposed to the summer monsoon. North of the city lie the Akaishi Mountains, or Southern Alps, with a series of peaks around 3,000 meters (9,800 ft) high and some winter resorts, while to the north-east lies Mount Fuji.
Because of both the relatively low latitude (we are on the 35th parallel) and the protection of the mountains (we are on the southern side), in winter, the currents of Siberian origin are felt little, so there are many sunny days, and usually, it's not very cold. However, cold and windy periods, with highs around 7/10 °C (45/50 °F) or less, can not be ruled out. Snowfall is very rare: unlike in Tokyo, where it can sometimes snow, here, in practice it never snows. Night frosts are rare and usually light.
Although it rarely rains in winter, given the exposure to the southern winds, when it rains, it can rain a lot.
In summer, sunny and muggy periods alternate with periods of bad weather, with wind and rain.
Here are the average temperatures.
Shizuoka - Average temperatures (1991-2020)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January2126.9365344.4
February3137.8375546
March61610.8436051.4
April112015.2516859.4
May152419.3597466.7
June192622.6677972.8
July233026.5748679.7
August243127.8768882
September212824.8708376.6
October162419.6607467.3
November101914.4506657.8
December5149.4405748.8
Year12.921.317.155.370.462.5

Precipitation in Shizuoka is definitely abundant, around 2,300 millimeters (90 inches) per year, so much so that it is one of the rainiest cities in Japan (together with some cities on the northern side of Honshu island, such as Kanazawa and Komatsu). Winter is definitely the driest season; in summer, from June to September, more than 1,100 millimeters (43 inches) of rain fall.
Here is the average precipitation.
Shizuoka - Average precipitation
MonthMillimetersInchesDays
January702.811
February1003.912
March2108.317
April2359.316
May2208.717
June28511.220
July2801120
August2459.618
September3051219
October1706.717
November1355.312
December602.410
Year232091.3190

The cherry blossoming in Shizuoka takes place around March 30th.
The amount of sunshine in Shizuoka is good in winter, when it is the sunniest city in Japan along with the neighboring city of Hamamatsu, while it is just mediocre or decent in the other seasons because of the disturbances that occur in spring and autumn, as well as the monsoon in summer. However, August is the sunniest month of summer. Here are the average sunshine hours per day.
Shizuoka - Sunshine hours
MonthAverageTotal
January6.5205
February6.5185
March6190
April6185
May6190
June4.5140
July5160
August6.5205
September5155
October5160
November5.5170
December6.5200
Year5.92145

Mount Fuji from Shizuoka

The sea is warm enough for swimming, with a temperature of 23 °C (73 °F) or more, from July to October, as you can see in the following table.
Shizuoka - Sea temperature
MonthCelsius (°C)Fahrenheit (°F)
January1864
February1763
March17.563
April18.565
May20.569
June2374
July25.578
August27.581
September26.579
October2475
November2272
December19.567
Year21.771

From June to October (but especially from August to early October), Shizuoka can be affected by typhoons, the tropical cyclones of the western Pacific, which in this area, facing south, are felt in a particular way. The most intense typhoons can bring torrential rainfall and heavy damage.


Shizuoka - Weather by month

Based on the period 1991-2020
(January - February - March - April - May - June - July - August - September - October - November - December)


In January, the coldest month of the year, the weather in Shizuoka is usually quite mild. The average temperature is of 6.9 °C (44 °F), with a minimum of 2.1 °C (35.8 °F) and a maximum of 11.7 °C (53.1 °F).
On the coldest nights of the month, the temperature usually drops to around -2 °C (28 °F). However, it dropped to -4.3 °C (24.3 °F) in January 2018.
On the warmest days of the month, the temperature usually reaches around 17.5 °C (63.5 °F). However, it reached 22 °C (71.6 °F) in January 2000.
Precipitation amounts to 70 mm (2.8 in), distributed over 11 days.
The day lasts on average 10 hours and 5 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 57%.
The average wind speed is 12 kph (7 mph).
The average sea temperature is of 18 °C (64 °F). Therefore, the sea is cold for swimming.



In February, the weather in Shizuoka is usually quite mild. The average temperature is of 7.8 °C (46 °F), with a minimum of 2.9 °C (37.2 °F) and a maximum of 12.6 °C (54.7 °F).
On the coldest nights of the month, the temperature usually drops to around -2 °C (28.5 °F). However, it dropped to -4.4 °C (24.1 °F) in February 1996.
On the warmest days of the month, the temperature usually reaches around 20 °C (68.5 °F). However, it reached 26.2 °C (79.2 °F) in February 2009.
Precipitation amounts to 100 mm (3.9 in), distributed over 12 days.
The day lasts on average 10 hours and 55 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 57%.
The average wind speed is 12 kph (7 mph).
The average sea temperature is of 17 °C (62.5 °F). Therefore, the sea is cold for swimming.



In March, the weather in Shizuoka is usually mild. The average temperature is of 10.8 °C (51 °F), with a minimum of 6 °C (42.8 °F) and a maximum of 15.5 °C (59.9 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 0.5 °C (32.5 °F). However, it dropped to -2.2 °C (28 °F) in March 2000.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 22.5 °C (73 °F). However, it reached 28 °C (82.4 °F) in March 2013.
Precipitation amounts to 210 mm (8.3 in), distributed over 17 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 62%.
The average wind speed is 12 kph (7 mph).
The average sea temperature is of 17.5 °C (63 °F). Therefore, the sea is cold for swimming.



In April, the weather in Shizuoka is usually very mild. The average temperature is of 15.2 °C (59 °F), with a minimum of 10.6 °C (51.1 °F) and a maximum of 19.8 °C (67.6 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 4.5 °C (40 °F). However, it dropped to 0.4 °C (32.7 °F) in April 1996.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 26.5 °C (80 °F). However, it reached 33.3 °C (91.9 °F) in April 2005.
Precipitation amounts to 235 mm (9.3 in), distributed over 16 days.
The day lasts on average 13 hours and 5 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 65%.
The average wind speed is 11 kph (7 mph).
The average sea temperature is of 18.5 °C (65.5 °F). Therefore, the sea is very cool for swimming.



In May, the weather in Shizuoka is usually warm. The average temperature is of 19.3 °C (67 °F), with a minimum of 15.1 °C (59.2 °F) and a maximum of 23.5 °C (74.3 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 10.5 °C (50.5 °F). However, it dropped to 7 °C (44.6 °F) in May 1991.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 30 °C (86 °F). However, it reached 33.9 °C (93 °F) in May 2000.
Precipitation amounts to 220 mm (8.7 in), distributed over 17 days.
The day lasts on average 14 hours and 0 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 20.5 °C (69.5 °F). Therefore, the sea is cool for swimming.



In June, the weather in Shizuoka is usually warm to hot and muggy. The average temperature is of 22.6 °C (73 °F), with a minimum of 19.2 °C (66.6 °F) and a maximum of 26.1 °C (79 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 15 °C (59 °F). However, it dropped to 12.5 °C (54.5 °F) in June 1993.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 33 °C (91.5 °F). However, it reached 38.3 °C (100.9 °F) in June 1991.
Precipitation amounts to 285 mm (11.2 in), distributed over 20 days.
The day lasts on average 14 hours and 30 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 4.5 hours of sunshine per day. So, the sun shines 32% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 23 °C (73.5 °F). Therefore, the sea can be considered barely acceptable for swimming.



In July, the weather in Shizuoka is usually warm to hot and muggy. The average temperature is of 26.5 °C (80 °F), with a minimum of 23.1 °C (73.6 °F) and a maximum of 29.9 °C (85.8 °F).
On the coldest nights of the month, the temperature usually drops to around 19.5 °C (67.5 °F). However, it dropped to 17.2 °C (63 °F) in July 1993.
On the warmest days of the month, the temperature usually reaches around 35.5 °C (96 °F). However, it reached 38.4 °C (101.1 °F) in July 1991.
Precipitation amounts to 280 mm (11 in), distributed over 20 days.
The day lasts on average 14 hours and 10 minutes. So the days are long.
There are on average 5 hours of sunshine per day. So, the sun shines 37% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 9 kph (6 mph).
The average sea temperature is of 25.5 °C (78.5 °F). Therefore, the sea is warm enough for swimming.



In August, the warmest month of the year, the weather in Shizuoka is usually very hot and muggy. The average temperature is of 27.8 °C (82 °F), with a minimum of 24.2 °C (75.6 °F) and a maximum of 31.3 °C (88.3 °F).
On the coldest nights of the month, the temperature usually drops to around 21 °C (70 °F). However, it dropped to 18.1 °C (64.6 °F) in August 2018.
On the warmest days of the month, the temperature usually reaches around 36 °C (97 °F). However, it reached 38.7 °C (101.7 °F) in August 1995.
Precipitation amounts to 245 mm (9.6 in), distributed over 18 days.
The day lasts on average 13 hours and 25 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 27.5 °C (81.5 °F). Therefore, the sea is pleasantly warm and allows long swims.



In September, the weather in Shizuoka is usually warm to hot and muggy. The average temperature is of 24.8 °C (77 °F), with a minimum of 21.1 °C (70 °F) and a maximum of 28.4 °C (83.1 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 16 °C (61 °F). However, it dropped to 11.6 °C (52.9 °F) in September 2001.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 33.5 °C (92.5 °F). However, it reached 37.1 °C (98.8 °F) in September 1995.
Precipitation amounts to 305 mm (12 in), distributed over 19 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 41% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 26.5 °C (79.5 °F). Therefore, the sea is pleasantly warm and allows long swims.



In October, the weather in Shizuoka is usually warm. The average temperature is of 19.6 °C (67 °F), with a minimum of 15.6 °C (60.1 °F) and a maximum of 23.6 °C (74.5 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 10 °C (50 °F). However, it dropped to 6.1 °C (43 °F) in October 1997.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 30 °C (86 °F). However, it reached 33.9 °C (93 °F) in October 1999.
Precipitation amounts to 170 mm (6.7 in), distributed over 17 days.
The day lasts on average 11 hours and 20 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 46% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 24 °C (75 °F). Therefore, the sea is warm enough for swimming.



In November, the weather in Shizuoka is usually mild. The average temperature is of 14.4 °C (58 °F), with a minimum of 9.9 °C (49.8 °F) and a maximum of 18.8 °C (65.8 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 4 °C (39.5 °F). However, it dropped to 2.2 °C (36 °F) in November 1993.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 24.5 °C (75.5 °F). However, it reached 28 °C (82.4 °F) in November 2000.
Precipitation amounts to 135 mm (5.3 in), distributed over 12 days.
The day lasts on average 10 hours and 20 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 67%.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 22 °C (71.5 °F). Therefore, the sea is cool for swimming.



In December, the weather in Shizuoka is usually mild. The average temperature is of 9.4 °C (49 °F), with a minimum of 4.6 °C (40.3 °F) and a maximum of 14.1 °C (57.4 °F).
On the coldest nights of the month, the temperature usually drops to around -1 °C (30.5 °F). However, it dropped to -3.5 °C (25.7 °F) in December 1995.
On the warmest days of the month, the temperature usually reaches around 20 °C (68.5 °F). However, it reached 24.1 °C (75.4 °F) in December 1992.
Precipitation amounts to 60 mm (2.4 in), distributed over 10 days.
The day lasts on average 9 hours and 50 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 6.5 hours of sunshine per day. So, the sun shines 65% of the time.
The average humidity is 60%.
The average wind speed is 11 kph (7 mph).
The average sea temperature is of 19.5 °C (67.5 °F). Therefore, the sea is very cool for swimming.


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