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Siena weather in July

Weather in Siena: July

Average day temperature: 88.8°F
Average night temperature: 64.1°F
Number of sunny days: 27 days
Day length: 14.6 - 15.3 hours
Number of rainy days: 2 days
Precipitation totals: 1.0 in.

Air temperature in July, °F

Show year:
2026
2025
2024

The highest day temperature during July of 2026 was 100°F. At the same time the lowest night temperature was 58°F. Daily and nightly averages during July were 92.9°F and 64.8°F.

Sunny, partly cloudy and cloudy days

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

Precipitation total in July, in.

Precipitation total value in Siena in July is 0.6 in. Other months of the year show relatively similar values.

Wind speed in July, mph

The average wind speed value in July is 5.7 mph It makes July 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 July is: 12.6.

Best time for vacation in Siena

Sunniest months:
July 27 days
August 26 days
June 23 days
Warmest months:
July 88.8 °F
August 88.7 °F
June 81.6 °F
Coldest months:
January 47.6 °F
December 49.6 °F
February 50.8 °F
Rainiest months:
May 5 days
March 4 days
November 4 days
Windiest months:
March 6.7 mph
February 6.1 mph
April 5.9 mph

Siena on a weather map

Siena
+68°F
SE 3 mph
Feels like: +68°F
Precip.: 8%
Places in Italy:
Name
°F
+75°F
+81°F
+70°F
+73°F
+68°F
+79°F
+81°F
+77°F
+75°F
+75°F
+77°F
+64°F
+77°F
+75°F
24 Hours Forecast
Siena
Local time: 22:50
July 28, tuesday
0000
68°F
SE
3 mph
0300
66°F
S
2 mph
0600
64°F
S
2 mph
0900
81°F
SW
2 mph
1200
93°F
SW
4 mph
1500
99°F
NW
1 mph
1800
97°F
E
6 mph
2100
79°F
SE
4 mph
Units of measurement: °C / °F