Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
The transition into October in Siena is accompanied by a temperature decrease, with the average high-temperature shifting from a moderately hot 24.5°C (76.1°F) in September to a refreshing 19.5°C (67.1°F). In Siena, an average nighttime temperature of 10.1°C (50.2°F) is expected during October.Humidity
The average relative humidity in October in Siena is 78%.Rainfall
In October, the rain falls for 9.8 days. Throughout October, 32mm (1.26") of precipitation is accumulated. Throughout the year, there are 123.6 rainfall days, and 363mm (14.29") of precipitation is accumulated.Snowfall
April through November are months without snowfall in Siena.Daylight
In October, the average length of the day in Siena is 11h and 1min.On the first day of October, sunrise is at 07:12 and sunset at 18:55 CEST. On the last day of the month, sunrise is at 06:49 and sunset at 17:07 CET.
Note: On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, and the time zone changes from CEST to CET. Daylight Saving Time starts again on Sunday, 30. March 2025, at 02:00; consequently, the time zone reverts from CET to CEST.
Sunshine
The average sunshine in October in Siena is 6.4h.UV index
In Siena, the average daily maximum UV index in October is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In October, an average UV index of 4 transforms into the following instructions:
Put precautions into practice - Guidance to elude sunburn is provided. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
What are the temperatures in Siena in October?
What is the average humidity in October in Siena?
How much does it rain in Siena in October?
When it does not snow in Siena?
What is the average length of the day in October in Siena?
When is the sunrise / sunset in October in Siena?
When does Daylight Saving Time (DST) end in October in Siena?
How long on average sun shines in October in Siena?
What is the UV index intensity in October in Siena?
Average temperature in October
Siena, Italy
- Average high temperature in October: 19.5°C
The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (8.5°C).
- Average low temperature in October: 10.1°C
The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is January (1.9°C).
Average pressure in October
Siena, Italy
- Average pressure in October: 1016.4mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).
Average wind speed in October
Siena, Italy
- Average wind speed in October: 8.2km/h
The windiest months (with the highest average wind speed) are February and March (10.8km/h).
The calmest month (with the lowest average wind speed) is June (7.1km/h).
Average humidity in October
Siena, Italy
- Average humidity in October: 78%
The month with the highest relative humidity is November (85%).
The month with the lowest relative humidity is August (63%).
Average rainfall in October
Siena, Italy
- Average rainfall in October: 32mm
The wettest month (with the highest rainfall) is November (50mm).
The driest month (with the least rainfall) is August (14mm).
Average rainfall days in October
Siena, Italy
- Average rainfall days in October: 9.8 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is August (5.8 days).
Average snowfall in October
Siena, Italy
- Average snowfall in October: 0mm
The month with the highest snowfall is February (20mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in October
Siena, Italy
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Siena, Italy
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in October: 6h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in October
Siena, Italy
- Average sunshine days in October: 19.2 days
The month with the most sunshine days is August (23.9 days).
The month with the least sunshine days is February (14.6 days).
Average UV index in October
Siena, Italy
- Average UV index in October: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in October
Siena, Italy
- Average cloud cover in October: 33
The months with the most cloud cover are January, February and November (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in October
Siena, Italy
- Average visibility in October: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September and December (9km).
The months with the lowest visibility are January, October and November (8km).
Siena, Italy
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