October weather forecastTrieste, Italy

October
Weather in October
October's weather in Trieste follows the declining autumn trend with cooler temperatures and shorter days. Locals and visitors start to feel the chill, with temperature highs averaging around 16.7°C (62.1°F) and lows around 10.4°C (50.7°F). October gives you a taste of mild autumn before the harsh winter sets in; the changing colors and cooler air make it a delightful period to experience the city’s ambiance. Additionally, rainfall decreases considerably from September, creating a balance for outdoor activities.Temperature
Welcoming October, Trieste observes a shift in the average high-temperature, falling from September's pleasant 21.8°C (71.2°F) to an enjoyable 16.7°C (62.1°F). Throughout the October nights, Trieste encounters a low-temperature of 10.4°C (50.7°F).Humidity
In Trieste, the average relative humidity in October is 77%.Rainfall
In October, in Trieste, the rain falls for 13.5 days. Throughout October, 74mm (2.91") of precipitation is accumulated. In Trieste, during the entire year, the rain falls for 177.7 days and collects up to 1019mm (40.12") of precipitation.Snowfall
In Trieste, snow does not fall in April through November.Sea temperature
In Trieste, Italy, the average seawater temperature in October is 19°C (66.2°F).Note: Swimming in water at 19°C (66.2°F) is not a pleasing experience for the majority. As the temperature descends from 21°C (69.8°F) to 15°C (59°F), controlling breathing becomes increasingly hard.
Daylight
In Trieste, Italy, the average length of the day in October is 10h and 56min.On the first day of October, sunrise is at 07:03 and sunset at 18:45 CEST. On the last day of the month, sunrise is at 06:43 and sunset at 16:53 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
In October, the average sunshine is 6.1h.UV index
In October, the average daily maximum UV index in Trieste is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 3 in October transforms into the following instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Trieste, Italy
- Average high temperature in October: 16.7°C
The warmest month (with the highest average high temperature) is August (27.2°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in October: 10.4°C
The month with the highest average low temperature is August (18.1°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in October
Trieste, Italy
- Average pressure in October: 1018.2mbar
The month with the highest atmospheric pressure is December (1019.8mbar).
The months with the lowest atmospheric pressure are May, June and July (1014.7mbar).
Average wind speed in October
Trieste, Italy
- Average wind speed in October: 9.9km/h
The windiest month (with the highest average wind speed) is February (11.7km/h).
The calmest months (with the lowest average wind speed) are June, July and August (8.6km/h).
Average humidity in October
Trieste, Italy
- Average humidity in October: 77%
The month with the highest relative humidity is November (82%).
The month with the lowest relative humidity is August (68%).
Average rainfall in October
Trieste, Italy
- Average rainfall in October: 74mm
The wettest month (with the highest rainfall) is November (129mm).
The driest month (with the least rainfall) is January (54mm).
Average rainfall days in October
Trieste, Italy
- Average rainfall days in October: 13.5 days
The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is January (10.9 days).
Average snowfall in October
Trieste, Italy
- Average snowfall in October: 0mm
The month with the highest snowfall is February (14mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in October
Trieste, Italy
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in October
Trieste, Italy
- Average sea temperature in October: 19°C
The best months for swimming (with the highest average sea temperature) are July and August (24.8°C).
The coldest month (with the lowest average sea temperature) is February (9.3°C).
Average daylight in October /
Average sunshine in October
Trieste, Italy
- Average daylight in October: 10h and 54min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in October: 6h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The months with the least sunshine are February and November (Average sunshine: 5h and 0min).
Average sunshine days in October
Trieste, Italy
- Average sunshine days in October: 15.5 days
The month with the most sunshine days is January (17 days).
The month with the least sunshine days is May (6.6 days).
Average UV index in October
Trieste, Italy
- Average UV index in October: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in October
Trieste, Italy
- Average cloud cover in October: 36
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in October
Trieste, Italy
- Average visibility in October: 9km
The months with the highest visibility are April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, March, October, November and December (9km).





