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Trieste weather in September

Weather in Trieste: September

Average day temperature: 74.3°F
Average night temperature: 59.3°F
Sea water temperature: 73.6°F
Number of sunny days: 19 days
Day length: 11.8 - 13.3 hours
Number of rainy days: 6 days
Precipitation totals: 4.2 in.

Air temperature in September, °F

Show year:
2024
2023
2022

The highest day temperature during September of 2024 was 88°F. At the same time the lowest night temperature was 47°F. Day and night temperature averages during September were 72.6°F and 60.3°F.

Sea water temperature in Trieste in September, °F

Show year:
2024
2023
2022

The average sea water temperature in September of 2024 was 75.4°F. The highest and lowest sea temperatures during the month were 82.6°F and 68.7°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are sunny but cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Trieste in September is 4.6 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 6.0 mph It makes September one of the most windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 8.3.

Best time for vacation in Trieste

Sunniest months:
August 23 days
July 21 days
September 19 days
Warmest months:
August 84.5 °F
July 84.3 °F
June 78.7 °F
Warmest sea temp:
August 78.4 °F
July 78.0 °F
September 73.6 °F
Coldest months:
January 44.7 °F
December 47.0 °F
February 47.6 °F
Rainiest months:
May 7 days
November 6 days
September 6 days
Windiest months:
February 6.6 mph
March 6.3 mph
November 6.2 mph

Trieste on a weather map

Trieste
+36°F
NW 2 mph
Feels like: +36°F
Precip.: 0%
Places in Italy:
Name
°F
+41°F
+48°F
+37°F
+37°F
+52°F
+43°F
+52°F
+48°F
+46°F
+37°F
+41°F
+43°F
+32°F
+39°F
24 Hours Forecast
Trieste
Local time: 02:09
December 22, sunday
0300
36°F
NW
2 mph
0600
36°F
N
3 mph
0900
39°F
N
3 mph
1200
43°F
NE
8 mph
1500
45°F
NE
6 mph
1800
39°F
SW
3 mph
2100
37°F
NW
8 mph
December 23, monday
0000
39°F
SW
12 mph
Units of measurement: °C / °F