Climate and monthly weather forecast
Yokkaichi, Japan

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The climate of Yokkaichi

Yokkaichi, Japan, designated with the Köppen climate classification Cfa, boasts conditions associated with a humid subtropical climate with no distinct dry season. Nestled in the heart of Japan, the city experiences weather patterns reflective of a subtropical zone, with notable variations in temperature, rainfall, and humidity.

Throughout the year, Yokkaichi witnesses a range shift in temperature from a low of 1.3°C (34.3°F) in January to a striking high of 31.3°C (88.3°F) in August. These fluctuations, although typical for such a climate, paint quite a diverse picture of weather conditions through the year. Another key climatological parameter, the relative humidity, remains fairly consistent throughout the year, oscillating from a low of 73% in May to a high of 82% in July.

Rainfall exhibits a more notable variation, with the lowest observed average of 9mm (0.35") in January and a peak of 74mm (2.91") in July. These figures, paired with the average number of rainfall days ranging from a low of 6.3 days in December to a high of 17.8 days in July, underline the rainfall-heavy summer months. Yokkaichi also experiences its share of snowfall, albeit very minimal, in January and December, the coldest months of the year.

The best time to visit Yokkaichi

Taking into account the various weather conditions throughout the year, the autumn months of October and November mark a pleasant time for a visit to Yokkaichi. Temperatures during these months are comfortably mild, ranging from 14.2°C (57.6°F) to 21°C (69.8°F) during the day. Additionally, rainfall is comparably lower, averaging between 47mm (1.85") and 9mm (0.35") respectively, with sunshine hours rather generous, amounting to 6 and 5.9 hours per day. The UV index during these months also remains relatively low, standing at 3 and 2 respectively, mitigating potential risks associated with excessive sun exposure.

The worst time to visit Yokkaichi

Based on the weather data, the less favorable time to travel to Yokkaichi would likely be the summer months of June, July, and August. Not only do these months observe the highest average temperatures, peaking at an intense 31.3°C (88.3°F), but they also record the most rainfall, reaching up to 74mm (2.91") in July. Coinciding with the high rainfall, the humidity is also at its peak, reaching up to 82%. These combined factors may deter outdoor activities and sightseeing due to exceedingly hot and rainy conditions.

Spring weather in Yokkaichi

Spring in Yokkaichi, spanning from March to May, exhibits escalating temperatures, progressing from 12°C (53.6°F) in March to 22.6°C (72.7°F) by the end of May. Correspondingly, rainfall increases from 21mm (0.83") to 29mm (1.14") throughout the season. Sunshine duration remains relatively abundant, with April receiving 8.2 hours per day and May slightly higher at 9 hours per day while UV index levels rise from 3 to 5, reflecting longer daylight hours.

Summer weather in Yokkaichi

Summers in Yokkaichi, falling between June and August, are characterised by high temperatures and elevated levels of humidity. June sees average daytime temperatures of 25.4°C (77.7°F), which climb to 31.3°C (88.3°F) in August. Moreover, summer receives the highest amount of rainfall for the year, reaching its apex at 74mm (2.91") in July. The quantity of daily sun hours slightly decreases from June to July but then swiftly recovers in August to 9.6 hours per day.

Autumn weather in Yokkaichi

Autumn, between September and November, marks a transition into cooler temperatures in Yokkaichi. Average temperatures decline from 26.8°C (80.2°F) in September to a milder 15.3°C (59.5°F) in November. Although the month of September still receives a fairly high rainfall of 38mm (1.5"), precipitation decreases throughout autumn, dropping to 9mm (0.35") by November. Daily sunshine hours also retreat from 7.7 hours in September to 5.9 hours by November.

Winter weather in Yokkaichi

Winter in Yokkaichi, encompassing December through February, brings lower temperatures, relatively less rainfall, and occasional snowfall. Temperatures drop to their lowest for the year, with a chilly 1.3°C (34.3°F) in January and a modest daytime high of 8.2°C (46.8°F) in February. Rainfall is comparatively sparse, with the lowest amount of 9mm (0.35") manifesting in December and January. Snowfall is minimal and typically limited to the colder months of January and December.

Weather in January

Yokkaichi, Japan begins the calendar year with brisk temperatures and occasional snowfall. An atmospheric pressure of 1018.9mb suggests stable weather conditions throughout the month. For residents who enjoy winter activities, the snowfall of 6mm (0.24") usually occurs over 2.8 days. Weather in January »

Weather in February

February's weather in Yokkaichi is similar to January, albeit with slightly milder temperatures. Sea temperatures drop slightly to 14.6°C (58.3°F) indicating an even cooler feel when by the water. The snowfall in February decreases to 3mm (0.12"). Weather in February »

Weather in March

With the arrival of March in Yokkaichi, the weather begins to pivot toward spring. Visibility remains consistent at 9km (5.6mi), allowing for excellent views of the cityscape on clear days. Notably, March experiences a substantial increase in rainfall, with an accumulation of 21mm (0.83") throughout the month. Weather in March »

Weather in April

April brings the true spirit of spring to Yokkaichi with noticeably warmer temperatures compared to the preceding months. It's also the first month where there's no snowfall, indicating a shift into the new season. Although average rainfall increases to 31mm (1.22"), it's the beautiful spring blossom that takes center stage in April. Weather in April »

Weather in May

Measured by thermal standards, the city of Yokkaichi rings in the summer season with temperatures reaching as high as 22.6°C (72.7°F) in May. Sun worshippers savor the increasing daylight hours, enabling more opportunities for outdoor activities. Weather in May »

Weather in June

The Yokkaichi weather in June becomes decidedly summery, characterized by high temperatures and increased humidity. A substantial jump in average rainfall to 53mm (2.09") marks June as the beginning of the wetter part of the year. Weather in June »

Weather in July

July invites the summer peak in Yokkaichi, with temperatures soaring to an average high of 29.3°C (84.7°F). The UV index jumps to its maximum, at 7, indicating a need for sun protection. July is also the wettest month, with an average rainfall of 74mm (2.91"), highest throughout the year. Weather in July »

Weather in August

August carries forward the intense summer weather from July in Yokkaichi. Comparatively, the sea temperature reaches its zenith with a warm 27.1°C (80.8°F). Rainfall reduces slightly to 47mm (1.85"), providing some respite. Despite the high temperatures, residents still benefit from approximately 9.6 hours of daily sunshine at this time of year. Weather in August »

Weather in September

As summer departs, Yokkaichi welcomes the fall season with a noticeable dip in average temperatures. The reduction in rainfall to 38mm (1.5") comes as a relief after several wet, humid months. Interestingly, daily sunshine hours drop, adding to the fall ambiance. Weather in September »

Weather in October

In Yokkaichi, October signals the height of the fall season with a significant drop in temperatures. Sea temperatures recede to 23.4°C (74.1°F) signaling a change in seasons. The decrease in daylight hours keeps in pace with the ongoing seasonal transition. Weather in October »

Weather in November

The last month of the autumn, November, is refreshing month in Yokkaichi, Japan, with an average temperature ranging between max 15.3°C (59.5°F) and min 8.7°C (47.7°F). The shift from October to November involves a decrease in the average high-temperature, from an agreeable 21°C (69.8°F) to a refreshing 15.3°C (59.5°F). Weather in November »

Weather in December

The closing month of the year brings a return to colder temperatures in Yokkaichi. A recrudescence of snowfall, with 4mm (0.16") accumulating, reaffirms the onset of winter. Despite the drop in the minimum temperature, the relative humidity remains steady throughout the month. Weather in December »
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Frequently asked questions

What is the coldest time of year in Yokkaichi?

January is Yokkaichi's coldest month, registering average high temperatures of 6.9°C (44.4°F) and lows of 1.3°C (34.3°F).

What is the driest month in Yokkaichi?

January and November are months with the least rain when the rain falls for 6.6 days and typically aggregates up to 9mm (0.35") of rain.

How many days does it rain in Yokkaichi?

In Yokkaichi, during the entire year, the rain falls for 128.5 days and collects up to 380mm (14.96") of precipitation.

When does it snow in Yokkaichi?

January through March and December are months with snowfall.

What is the snowiest month in Yokkaichi?

January is the month with the most snowfall. Snow falls for 2.8 days and accumulates 6mm (0.24") of snow.

How many days does it snow in Yokkaichi?

In Yokkaichi, Japan, during the entire year, snow falls for 5.8 days and aggregates up to 14mm (0.55") of snow.

When is the lowest UV index in Yokkaichi?

The months with the lowest UV index in Yokkaichi, Japan, are January, February and December, with an average maximum UV index of 2.

What are the months with the coldest sea water in Yokkaichi?

The months with the coldest seawater in Yokkaichi, Japan, are February and March, with an average sea temperature of 14.6°C (58.3°F).

What is the month with the least sunshine in Yokkaichi?

The month with the least sunshine is February, with an average of 5.3h of sunshine.

When it does not snow in Yokkaichi?

April through November are months without snowfall.

What is the least humid month in Yokkaichi?

With an average relative humidity of 73%, May is the least humid month.

When are the longest days in Yokkaichi?

June has the longest days of the year in Yokkaichi, with an average of 14h and 30min of daylight.

What is the most humid month in Yokkaichi?

The most humid month in Yokkaichi, Japan, is July, with an average relative humidity of 82%.

What is the rainiest month in Yokkaichi?

The month with the most rainfall is July, when the rain falls for 17.8 days and typically aggregates up to 74mm (2.91") of precipitation.

When is the highest UV index in Yokkaichi?

The month with the highest UV index is July, with an average maximum UV index of 7.

What are the warmest months in Yokkaichi?

The temperatures in Yokkaichi, Japan, reach their highest averages in August, with highs of 31.3°C (88.3°F) and lows of 23.4°C (74.1°F).

What is the month with the warmest sea water in Yokkaichi?

August is the month with the warmest seawater in Yokkaichi, with an average sea temperature of 27.1°C (80.8°F).

What month has the most sunshine in Yokkaichi?

With an average of 9.6h of sunshine, August has the most sunshine of the year in Yokkaichi, Japan.

What is the month with the shortest days in Yokkaichi?

December has the shortest days of the year, with an average of 9h and 54min of daylight.

Is there Daylight Saving Time (DST) in Yokkaichi?

Yokkaichi does not observe Daylight Saving Time (DST). JST timezone is used throughout the entire year.

Average temperature
Yokkaichi, Japan

Average temperature - Yokkaichi, Japan

The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (6.9°C).

The month with the highest average low temperature is August (23.4°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).

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Average pressure
Yokkaichi, Japan

Average pressure - Yokkaichi, Japan

The month with the highest atmospheric pressure is November (1019.3mbar).
The month with the lowest atmospheric pressure is June (1009mbar).

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Average wind speed
Yokkaichi, Japan

Average wind speed - Yokkaichi, Japan

The windiest month (with the highest average wind speed) is January (10.3km/h).
The calmest month (with the lowest average wind speed) is July (6.6km/h).

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Average rainfall
Yokkaichi, Japan

Average rainfall - Yokkaichi, Japan

The wettest month (with the highest rainfall) is July (74mm).
The driest months (with the least rainfall) are January and November (9mm).

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Average rainfall days
Yokkaichi, Japan

Average rainfall days - Yokkaichi, Japan

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (6 days).

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Average snowfall
Yokkaichi, Japan

Average snowfall - Yokkaichi, Japan

The month with the highest snowfall is January (6mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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Average snowfall days
Yokkaichi, Japan

Average snowfall days - Yokkaichi, Japan

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average sea temperature
Yokkaichi, Japan

Average sea temperature - Yokkaichi, Japan

The best month for swimming (with the highest average sea temperature) is August (27.1°C).
The coldest months (with the lowest average sea temperature) are February and March (14.6°C).

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Average daylight / Average sunshine
Yokkaichi, Japan

Average daylight / Average sunshine - Yokkaichi, Japan

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

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Average sunshine days
Yokkaichi, Japan

Average sunshine days - Yokkaichi, Japan

The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is July (10.1 days).

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Average visibility
Yokkaichi, Japan

Average visibility - Yokkaichi, Japan

The months with the highest visibility are January, February, March, November and December (9km).
The month with the lowest visibility is July (7km).

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Yokkaichi, Japan

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