When is the best time to go to Siena

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The chart above shows the best time of year to visit Siena, Italy. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.

Average temperatures in Siena

Siena weather by month

Please note our recommendations for when to visit Siena are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.

January

Siena January weather averages
Temp Rain Sunshine Day length
8°C 65mm 3.9hrs 10.4hrs

Siena's weather in January is typically cool and reasonably dry in nature.

Based on weather alone, this is probably a time of year to avoid going to Siena for your holidays. The weather is often not a good and not conducive to spending time outdoors.

January is in the winter in Siena and is typically the coldest month of the year. Daytime maximum temperatures average around a cool 9°C (49°F), whilst at night 2°C (36°F) is normal.

On average January is the driest month of the year in Siena with around 65mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.

On the flip side this corresponds to an average of 3.9 hours of sunshine per day.

Siena weather in January »

February

Siena February weather averages
Temp Rain Sunshine Day length
10°C 63mm 4.4hrs 11.5hrs

February in Siena is generally reasonably dry with the temperature being cool.

Based on weather alone, this is probably a time of year to avoid going to Siena for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.

February is in the winter in Siena and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cool 11°C (51°F), whilst at night 3°C (38°F) is normal.

On average February is the 2nd driest month of the year in Siena with around 63mm 2.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 4.4 hours of sunshine per day.

Siena weather in February »

March

Siena March weather averages
Temp Rain Sunshine Day length
12°C 60mm 5.3hrs 12.8hrs

The weather in March in Siena is characteristically cool and reasonably dry.

Based on weather alone, this is probably a time of year to avoid going to Siena for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.

March is in the spring in Siena and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 13°C (56°F), whilst at night 5°C (40°F) is normal.

On average March is the 3rd driest month of the year in Siena with around 60mm 2.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.3 hours of sunshine per day.

Siena weather in March »

April

Siena April weather averages
Temp Rain Sunshine Day length
15°C 65mm 6.4hrs 14.4hrs

Siena's weather in April is typically mild and reasonably dry in nature.

Although outside the main holiday season, there is still plenty of pretty acceptable weather around this time of year. This makes it an okay time to visit Siena.

April is in the spring in Siena and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 17°C (62°F), whilst at night 7°C (45°F) is normal.

On average April is the 4th driest month of the year in Siena with around 65mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.4 hours of sunshine per day.

Siena weather in April »

May

Siena May weather averages
Temp Rain Sunshine Day length
19°C 58mm 7.8hrs 15.7hrs

May is a reasonably dry month in Siena and the temperature is generally mild.

It is perhaps a good month to visit Siena, with some extremely good weather at this time of year.

May is in the spring in Siena and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 21°C (70°F), whilst at night 11°C (51°F) is normal.

On average May is the 5th driest month of the year in Siena with around 58mm 2.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.8 hours of sunshine per day.

Siena weather in May »

June

Siena June weather averages
Temp Rain Sunshine Day length
23°C 41mm 9.1hrs 10.4hrs

Siena's weather in June is typically warm and reasonably dry in nature.

It is perhaps a good month to visit Siena, with some very good weather at this time of year.

June is in the summer in Siena and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a comfortable 25°C (77°F), whilst at night 14°C (57°F) is normal.

On average June is the 6th driest month of the year in Siena with around 41mm 1.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.1 hours of sunshine per day.

Siena weather in June »

July

Siena July weather averages
Temp Rain Sunshine Day length
26°C 30mm 10.4hrs 11.5hrs

July in Siena is generally dry with the temperature being warm.

It is perhaps the perfect month to visit Siena, with some very good weather at this time of year.

July is in the summer in Siena and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a comfortable 29°C (84°F), whilst at night 17°C (62°F) is normal.

On average July is the 6th wettest month of the year in Siena with around 30mm 1.2 inches of rain making it a dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.4 hours of sunshine per day.

Siena weather in July »

August

Siena August weather averages
Temp Rain Sunshine Day length
26°C 43mm 9.5hrs 12.8hrs

The weather in August in Siena is characteristically warm and reasonably dry.

It is perhaps a good month to visit Siena, with some particularly good weather at this time of year.

August is in the summer in Siena and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a comfortable 28°C (83°F), whilst at night 17°C (62°F) is normal.

On average August is the 5th wettest month of the year in Siena with around 43mm 1.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.5 hours of sunshine per day.

Siena weather in August »

September

Siena September weather averages
Temp Rain Sunshine Day length
22°C 69mm 7.6hrs 14.4hrs

Siena's weather in September is typically warm and reasonably dry in nature.

Although outside the main holiday season, there is still plenty of relatively acceptable weather around this time of year. This makes it an okay time to visit Siena.

September is in the fall / autumn in Siena and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 25°C (76°F), whilst at night 14°C (57°F) is normal.

On average September is the 4th wettest month of the year in Siena with around 69mm 2.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.6 hours of sunshine per day.

Siena weather in September »

October

Siena October weather averages
Temp Rain Sunshine Day length
18°C 76mm 5.8hrs 15.7hrs

October is a reasonably dry month in Siena and the temperature is generally mild.

Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it an okay time to visit Siena.

October is in the fall / autumn in Siena and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 20°C (67°F), whilst at night 11°C (51°F) is normal.

On average October is the 3rd wettest month of the year in Siena with around 76mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.8 hours of sunshine per day.

Siena weather in October »

November

Siena November weather averages
Temp Rain Sunshine Day length
13°C 103mm 3.9hrs 10.4hrs

November in Siena is generally damp with the temperature being mild.

Based on weather alone, this is probably a time of year to avoid going to Siena for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.

November is in the fall / autumn in Siena and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cool 14°C (57°F), whilst at night 7°C (44°F) is normal.

On average November is the 2nd wettest month of the year in Siena with around 103mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.

On the flip side this corresponds to an average of 3.9 hours of sunshine per day.

Siena weather in November »

December

Siena December weather averages
Temp Rain Sunshine Day length
9°C 69mm 3.5hrs 11.5hrs

December in Siena is generally reasonably dry with the temperature being cool.

Based on weather alone, this is probably a time of year to avoid going to Siena for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.

December is in the winter in Siena and is typically the warmest month of the year. Daytime maximum temperatures average around a cool 10°C (50°F), whilst at night 3°C (38°F) is normal.

On average December is the wettest month of the year in Siena with around 69mm 2.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.

On the flip side this corresponds to an average of 3.5 hours of sunshine per day.

Siena weather in December »

Siena

Other monthly averages

UV index Best time to go?

Siena weather stats

Siena weather statistics
Hottest month: July 28.4°C 83.1°F
Driest month: July 30mm 1.2ins
Sunniest month: July 10.4hrs
Coldest month: January 9.1°C 48.4°F
Wettest month: November 103mm 4.1ins
Warmest sea: August 25.2°C 77.4°F
Map showing location of Siena (43.32004, 11.33283) Siena map pin © Google

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