Siena
Italy
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Siena, Italy

January, like December, is another chilly winter month in Siena, Italy, with average temperature varying between 2°C (35.6°F) and 8°C (46.4°F). January is the coldest month, with an average high-temperature of 8°C (46.4°F) and an average low-temperature of 2°C (35.6°F). Weather in January »
February, the last month of the winter, in Siena, is also a frosty month, with average temperature fluctuating between 2.3°C (36.1°F) and 9.1°C (48.4°F). In February, the average high-temperature is relatively the same as in January - a still chilly 9.1°C (48.4°F). Weather in February »

March, the first month of the spring, in Siena, is a cool month, with average temperature ranging between max 11.9°C (53.4°F) and min 4.2°C (39.6°F). In Siena, Italy, the average high-temperature in March is practically the same as in February - a cool 11.9°C (53.4°F). Weather in March »

April is a comfortable spring month in Siena, Italy, with temperature in the range of an average low of 7.3°C (45.1°F) and an average high of 16°C (60.8°F). In Siena, Italy, the average high-temperature slightly increases, from a cool 11.9°C (53.4°F) in March, to a comfortable 16°C (60.8°F). Weather in April »

May, the last month of the spring, in Siena, is a pleasant month, with average temperature varying between 20.4°C (68.7°F) and 10.5°C (50.9°F). In May, the average high-temperature marginally rises, from an enjoyable 16°C (60.8°F) in April, to an agreeable 20.4°C (68.7°F). Weather in May »

June, the first month of the summer, in Siena, is a warm month, with average temperature ranging between min 14.1°C (57.4°F) and max 24.6°C (76.3°F). In Siena, the average high-temperature in June slightly increases, from an agreeable 20.4°C (68.7°F) in May, to a warm 24.6°C (76.3°F). Weather in June »

July, the same as June, is another warm summer month in Siena, Italy, with average temperature ranging between min 16.6°C (61.9°F) and max 27.9°C (82.2°F). The warmest month is July, with an average high-temperature of 27.9°C (82.2°F) and an average low-temperature of 16.6°C (61.9°F). The month with the least rainfall in Siena is July when the rain falls for 4 days and typically collects 31mm (1.2") of precipitation. Weather in July »

August, the last month of the summer, in Siena, is another warm month, with average temperature fluctuating between 27.4°C (81.3°F) and 16.6°C (61.9°F). In Siena, the average high-temperature is almost the same as in July - a still moderately hot 27.4°C (81.3°F). Weather in August »

September, the first month of the autumn, in Siena, is also a moderately hot month, with average temperature varying between 23.4°C (74.1°F) and 14.1°C (57.4°F). In Siena, the average high-temperature in September slightly decreases, from 27.4°C (81.3°F) in August, to a still moderately hot 23.4°C (74.1°F). Weather in September »

October, like September, in Siena, Italy, is another comfortable autumn month, with average temperature ranging between max 18°C (64.4°F) and min 10°C (50°F). In October, the average high-temperature drops, from a warm 23.4°C (74.1°F) in September, to an enjoyable 18°C (64.4°F). Weather in October »

November, the last month of the autumn, in Siena, is another cool month, with average temperature varying between 6.6°C (43.9°F) and 12.5°C (54.5°F). In Siena, Italy, the average high-temperature in November decreases, from an enjoyable 18°C (64.4°F) in October, to a cool 12.5°C (54.5°F). Weather in November »

December, the first month of the winter, in Siena, is still a chilly month, with temperature in the range of an average high of 9°C (48.2°F) and an average low of 3.5°C (38.3°F). In December, the average high-temperature slightly decreases, from a fresh 12.5°C (54.5°F) in November, to a chilly 9°C (48.2°F). Weather in December »

What is the coldest month in Siena?

With an average high-temperature of 8°C (46.4°F) and an average low-temperature of 2°C (35.6°F), January is the coldest month in Siena.

How many days does it rain in Siena?

In Siena, during the entire year, the rain falls for 87 days and collects up to 750mm (29.5") of precipitation.

What are the months with the lowest UV index in Siena?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

When are the longest days in Siena?

June has the longest days of the year, with an average of 15.4h of daylight.

What is the month with the highest UV index in Siena?

Months with the highest UV index are June through August, with an average maximum UV index of 8.

What is the warmest month in Siena?

The warmest month in Siena is July, with an average high-temperature of 27.9°C (82.2°F) and an average low-temperature of 16.6°C (61.9°F).

What is the driest month in Siena?

July is the month with the least rainfall in Siena, Italy. Rain falls for 4 days and accumulates 31mm (1.2") of precipitation.

What month has the most sunshine in Siena?

July has the most sunshine of the year in Siena, Italy, with an average of 10h of sunshine.

What is the rainiest month in Siena?

October is the month with the most rainfall. Rain falls for 8 days and accumulates 93mm (3.7") of precipitation.

What is the month with the shortest days in Siena?

With an average of 9h of daylight, December has the shortest days of the year.

What is the month with the least sunshine in Siena?

The month with the least sunshine in Siena is December, with an average of 3h of sunshine.
Average rainfall - Siena, Italy
Average rainfall days - Siena, Italy
Average daylight / Average sunshine - Siena, Italy