Okayama
Japan
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Okayama, Japan

January, the same as December, in Okayama, Japan, is a frosty winter month, with average temperature fluctuating between 1.1°C (34°F) and 9°C (48.2°F). January is the coldest month, with an average high-temperature of 9°C (48.2°F) and an average low-temperature of 1.1°C (34°F). Weather in January »

The last month of the winter, February, is another chilly month in Okayama, Japan, with average temperature fluctuating between 1.4°C (34.5°F) and 9.8°C (49.6°F). In Okayama, Japan, the average high-temperature is essentially the same as in January - a still frosty 9.8°C (49.6°F). Weather in February »

The first month of the spring, March, is a mild month in Okayama, Japan, with average temperature varying between 4.3°C (39.7°F) and 13.3°C (55.9°F). In Okayama, Japan, the average high-temperature slightly increases, from a chilly 9.8°C (49.6°F) in February, to a moderate 13.3°C (55.9°F). Weather in March »

April is an enjoyable spring month in Okayama, Japan, with temperature in the range of an average low of 9.6°C (49.3°F) and an average high of 19.6°C (67.3°F). In April, the average high-temperature increases, from a moderate 13.3°C (55.9°F) in March, to a comfortable 19.6°C (67.3°F). Weather in April »

May, the last month of the spring, in Okayama, is a warm month, with temperature in the range of an average low of 14.6°C (58.3°F) and an average high of 24.4°C (75.9°F). In Okayama, the average high-temperature slightly increases, from an enjoyable 19.6°C (67.3°F) in April, to a moderately hot 24.4°C (75.9°F). Weather in May »

The first month of the summer, June, is also a moderately hot month in Okayama, Japan, with temperature in the range of an average high of 27.7°C (81.9°F) and an average low of 19.4°C (66.9°F). In Okayama, the average high-temperature slightly increases, from 24.4°C (75.9°F) in May, to a still moderately hot 27.7°C (81.9°F). Weather in June »

July in Okayama, Japan, is a hot summer month, with temperature in the range of an average high of 31.4°C (88.5°F) and an average low of 23.7°C (74.7°F). In July, the average high-temperature slightly increases, from a moderately hot 27.7°C (81.9°F) in June, to a tropical 31.4°C (88.5°F). Weather in July »

August, the last month of the summer, in Okayama, is another tropical month, with average temperature fluctuating between 32.7°C (90.9°F) and 24.7°C (76.5°F). August is the warmest month, with an average high-temperature of 32.7°C (90.9°F) and an average low-temperature of 24.7°C (76.5°F). The average heat index is estimated at an extremely hot 42.1°C (107.8°F). Weather in August »

The first month of the autumn, September, is also a moderately hot month in Okayama, Japan, with average temperature ranging between max 28.4°C (83.1°F) and min 20.7°C (69.3°F). In September, the average high-temperature slightly decreases, from a tropical 32.7°C (90.9°F) in August, to a moderately hot 28.4°C (83.1°F). Weather in September »

October, the same as September, in Okayama, Japan, is another pleasant autumn month, with average temperature fluctuating between 14°C (57.2°F) and 22.5°C (72.5°F). In Okayama, the average high-temperature drops, from a warm 28.4°C (83.1°F) in September, to a pleasant 22.5°C (72.5°F). Weather in October »

November, the last month of the autumn, in Okayama, is another comfortable month, with average temperature fluctuating between 16.8°C (62.2°F) and 8.2°C (46.8°F). In Okayama, Japan, the average high-temperature in November drops, from an agreeable 22.5°C (72.5°F) in October, to a comfortable 16.8°C (62.2°F). Weather in November »

The first month of the winter, December, is also a fresh month in Okayama, Japan, with average temperature ranging between max 11.6°C (52.9°F) and min 3.3°C (37.9°F). In Okayama, Japan, the average high-temperature drops, from an enjoyable 16.8°C (62.2°F) in November, to a cool 11.6°C (52.9°F). Weather in December »

What is the coldest month in Okayama?

With an average high-temperature of 9°C (48.2°F) and an average low-temperature of 1.1°C (34°F), January is the coldest month.

How many days does it rain in Okayama?

Throughout the year, in Okayama, there are 189 rainfall days, and 1106.2mm (43.6") of precipitation is accumulated.

When does it snow in Okayama?

Months with snowfall are January through March.

How much does it snow in Okayama?

Throughout the year, in Okayama, Japan, 30mm (1.2") of snow is accumulated.

What is the snowiest month in Okayama?

Months with the most snowfall are January through March, with an average 10mm (0.4") of accumulated snow.

What is the month with the least sunshine in Okayama?

The month with the least sunshine is January, with an average of 4.9h of sunshine.

When is the sea coldest in Okayama?

February is the month with the coldest seawater in Okayama, with an average sea temperature of 13.3°C (55.9°F).

What is the least humid month in Okayama?

April is the least humid month, with an average relative humidity of 60%.

When it does not snow in Okayama?

April through December are months without snowfall.

What is the rainiest month in Okayama?

June is the month with the most rainfall. Rain falls for 17 days and accumulates 171.5mm (6.8") of precipitation.

When are the longest days in Okayama?

The month with the longest days in Okayama, Japan, is June, with an average of 14.5h of daylight.

What is the most humid month in Okayama?

July is the most humid month, with an average relative humidity of 73%.

When is the highest UV index in Okayama?

With an average maximum UV index of 11, July is the month with the highest UV index in Okayama, Japan.

What is the warmest month in Okayama?

The warmest month in Okayama is August, with an average high-temperature of 32.7°C (90.9°F) and an average low-temperature of 24.7°C (76.5°F).

When is the sea warmest in Okayama?

The month with the warmest seawater is August, with an average sea temperature of 27.2°C (81°F).

What month has the most sunshine in Okayama?

With an average of 6.7h of sunshine, August has the most sunshine of the year in Okayama.

What is the driest month in Okayama?

The month with the least rainfall is December when the rain falls for 15 days and typically collects 31mm (1.2") of precipitation.

What is the month with the shortest days in Okayama?

December has the shortest days of the year in Okayama, with an average of 9.9h of daylight.

What is the month with the lowest UV index in Okayama?

December is the month with the lowest UV index in Okayama, with an average maximum UV index of 2.
Average rainfall - Okayama, Japan

The wettest month (with the highest rainfall) is June (171.5mm).
The driest month (with the lowest rainfall) is December (31mm).

Average rainfall days - Okayama, Japan

Months with the highest number of rainy days are January and March (18 days).
The month with the lowest number of rainy days is August (13 days).

Average snowfall - Okayama, Japan

Months with the highest snowfall are January, February and March (10mm).
Months with the lowest snowfall are April, May, June, July, August, September, October, November and December (0mm).

Average sea temperature - Okayama, Japan

The best month for swimming (with the highest average sea temperature) is August (27.2°C).
The coldest month (with the lowest average sea temperature) is February (13.3°C).

Average daylight / Average sunshine - Okayama, Japan