Measurements:
°C
°F
Grosseto
68°F
SW 11 mph
Feels like: 68°F
Precip: 2%
World Resorts Italy Grosseto Weather

7 Day Weather Forecast

09.13
sun
DAY
86°F
SW 7 mph
precip
10%
NIGHT
74°F
SW 5 mph
precip
2%
09.14
mon
DAY
82°F
NE 6 mph
precip
1%
NIGHT
74°F
S 4 mph
precip
6%
09.15
tue
DAY
84°F
NE 2 mph
precip
1%
NIGHT
74°F
S 4 mph
precip
4%
09.16
wed
DAY
80°F
NE 7 mph
precip
3%
NIGHT
74°F
W 4 mph
precip
5%
09.17
thu
DAY
80°F
N 17 mph
precip
20%
NIGHT
74°F
W 6 mph
precip
54%
09.18
fri
DAY
80°F
N 11 mph
precip
41%
NIGHT
72°F
SW 4 mph
precip
32%
09.19
sat
DAY
78°F
W 5 mph
precip
3%
NIGHT
70°F
SW 6 mph
precip
7%

Grosseto Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Grosseto was 24.4°F. The maximum and minimum values were 23.2°F and 25.6°F respectively.

Grosseto on the Weather Map

Best Time to Visit Grosseto
The most sunny months:
July 29 days
August 27 days
June 26 days
The most warm months:
August 90.9 °F
July 90.4 °F
June 83.8 °F
Warmest sea temperature:
August 81.4 °F
July 80.2 °F
September 77.8 °F
The most cold months:
January 52.6 °F
February 54.7 °F
December 55.2 °F
The most rainy months:
November 4 days
January 3 days
December 3 days
The most windy months:
March 9 mph
February 9 mph
November 9 mph