Hiroshima
Japan
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Hiroshima, Japan

January, like December, is a frosty winter month in Hiroshima, Japan, with average temperature varying between 9.7°C (49.5°F) and 1.7°C (35.1°F). The coldest month is January, with an average high-temperature of 9.7°C (49.5°F) and an average low-temperature of 1.7°C (35.1°F). Weather in January »

The last month of the winter, February, is a fresh month in Hiroshima, Japan, with average temperature ranging between max 10.6°C (51.1°F) and min 2.1°C (35.8°F). In February, the average high-temperature is essentially the same as in January - a cool 10.6°C (51.1°F). Weather in February »

March, the first month of the spring, in Hiroshima, is a moderate month, with average temperature varying between 4.8°C (40.6°F) and 14°C (57.2°F). In March, the average high-temperature slightly increases, from a cool 10.6°C (51.1°F) in February, to a mild 14°C (57.2°F). Weather in March »

April in Hiroshima, Japan, is an enjoyable spring month, with temperature in the range of an average low of 9.9°C (49.8°F) and an average high of 19.7°C (67.5°F). In Hiroshima, the average high-temperature rises, from a moderate 14°C (57.2°F) in March, to a comfortable 19.7°C (67.5°F). Weather in April »

May, the last month of the spring, in Hiroshima, is a moderately hot month, with average temperature ranging between min 14.7°C (58.5°F) and max 24.1°C (75.4°F). In Hiroshima, the average high-temperature slightly increases, from an enjoyable 19.7°C (67.5°F) in April, to a moderately hot 24.1°C (75.4°F). Weather in May »

June, the first month of the summer, in Hiroshima, is still a warm month, with average temperature ranging between min 19.4°C (66.9°F) and max 27.2°C (81°F). In Hiroshima, the average high-temperature in June slightly increases, from 24.1°C (75.4°F) in May, to a still moderately hot 27.2°C (81°F). Weather in June »

July is a hot summer month in Hiroshima, Japan, with temperature in the range of an average low of 23.8°C (74.8°F) and an average high of 30.8°C (87.4°F). In Hiroshima, the average high-temperature in July marginally rises, from a warm 27.2°C (81°F) in June, to a hot 30.8°C (87.4°F). Weather in July »

The last month of the summer, August, is another tropical month in Hiroshima, Japan, with temperature in the range of an average high of 32.5°C (90.5°F) and an average low of 24.8°C (76.6°F). The warmest month is August, with an average high-temperature of 32.5°C (90.5°F) and an average low-temperature of 24.8°C (76.6°F). In August, the average heat index is evaluated at a scorching 42.3°C (108.1°F). Weather in August »

The first month of the autumn, September, is also a moderately hot month in Hiroshima, Japan, with average temperature fluctuating between 20.8°C (69.4°F) and 29°C (84.2°F). In September, the average high-temperature marginally drops, from a tropical 32.5°C (90.5°F) in August, to a warm 29°C (84.2°F). Weather in September »

October, like September, in Hiroshima, Japan, is another warm autumn month, with temperature in the range of an average high of 23.4°C (74.1°F) and an average low of 14.2°C (57.6°F). In Hiroshima, the average high-temperature in October drops, from a warm 29°C (84.2°F) in September, to a still moderately hot 23.4°C (74.1°F). Weather in October »

November, the last month of the autumn, in Hiroshima, is another comfortable month, with average temperature fluctuating between 17.4°C (63.3°F) and 8.5°C (47.3°F). In Hiroshima, the average high-temperature decreases, from a warm 23.4°C (74.1°F) in October, to a comfortable 17.4°C (63.3°F). Weather in November »

December, the first month of the winter, in Hiroshima, is still a cool month, with average temperature varying between 12.3°C (54.1°F) and 3.7°C (38.7°F). In Hiroshima, the average high-temperature decreases, from an enjoyable 17.4°C (63.3°F) in November, to a cool 12.3°C (54.1°F). Weather in December »

What is the coldest month in Hiroshima?

With an average high-temperature of 9.7°C (49.5°F) and an average low-temperature of 1.7°C (35.1°F), January is the coldest month in Hiroshima.

How much does it rain in Hiroshima?

Throughout the year, in Hiroshima, Japan, there are 190 rainfall days, and 1537.6mm (60.5") of precipitation is accumulated.

When does it snow in Hiroshima?

Months with snowfall are January through March and December.

How much does it snow in Hiroshima?

In Hiroshima, Japan, during the entire year, snow falls for 23.1 days, and aggregates up to 130mm (5.1") of snow.

What is the snowiest month in Hiroshima?

The month with the most snowfall in Hiroshima, Japan, is January when snow falls for 8.7 days and typically aggregates up to 50mm (2") of snow.

What is the month with the least sunshine in Hiroshima?

The month with the least sunshine in Hiroshima, Japan, is January, with an average of 4.4h of sunshine.

When is the lowest UV index in Hiroshima?

Months with the lowest UV index in Hiroshima, Japan, are January and December, with an average maximum UV index of 3.

What is the month with the coldest sea water in Hiroshima?

The month with the coldest seawater is February, with an average sea temperature of 12.4°C (54.3°F).

What is the least humid month in Hiroshima?

With an average relative humidity of 63%, April is the least humid month in Hiroshima.

When it does not snow in Hiroshima?

April through November are months without snowfall in Hiroshima.

When are the longest days in Hiroshima?

With an average of 14.4h of daylight, June has the longest days of the year.

What is the most humid month in Hiroshima?

July is the most humid month in Hiroshima, with an average relative humidity of 74%.

What is the rainiest month in Hiroshima?

July is the month with the most rainfall. Rain falls for 17 days and accumulates 258.6mm (10.2") of precipitation.

When is the highest UV index in Hiroshima?

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

What is the warmest month in Hiroshima?

August is the warmest month in Hiroshima, with an average high-temperature of 32.5°C (90.5°F) and an average low-temperature of 24.8°C (76.6°F).

When is the sea warmest in Hiroshima?

With an average sea temperature of 26.8°C (80.2°F), August is the month with the warmest seawater.

What month has the most sunshine in Hiroshima?

August has the most sunshine of the year, with an average of 6.8h of sunshine.

What is the driest month in Hiroshima?

The month with the least rainfall in Hiroshima is December when the rain falls for 17 days and typically collects 41.2mm (1.6") of precipitation.

What is the month with the shortest days in Hiroshima?

With an average of 9.9h of daylight, December has the shortest days of the year.
Average temperature - Hiroshima, Japan
Average rainfall - Hiroshima, Japan

The wettest month (with the highest rainfall) is July (258.6mm).
The driest month (with the lowest rainfall) is December (41.2mm).

Average rainfall days - Hiroshima, Japan
Average snowfall - Hiroshima, Japan

The month with the highest snowfall is January (50mm).
Months with the lowest snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days - Hiroshima, Japan

The month with the highest number of snowfall days is January (8.7 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

Average sea temperature - Hiroshima, Japan

The best month for swimming (with the highest average sea temperature) is August (26.8°C).
The coldest month (with the lowest average sea temperature) is February (12.4°C).

Average daylight / Average sunshine - Hiroshima, Japan