Measurements:
°C
°F
Grosseto
50°F
NE 4 mph
Feels like: 48°F
Precip: 100%
World Resorts Italy Grosseto Weather

Grosseto Sea Water Temperature

Current Sea Water Temperature:
+59.2°F
Maximum Sea Water Temperature in January: 62.4°F
Minimum Sea Water Temperature in January: 57.4°F
Average water temperature in January: 59.7°F

Sea Water Temperature for the Last 10 Days:

January 28 59.2°F January 23 60.2°F
January 27 59.4°F January 22 59.8°F
January 26 60.0°F January 21 59.6°F
January 25 60.2°F January 20 59.8°F
January 24 60.2°F January 19 60.0°F

When is the Warmest Sea for Grosseto?

According to our data for the last three years for Grosseto the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Grosseto was 80.3°F. The maximum and minimum values were 77.0°F and 82.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Grosseto was 81.4°F. The maximum and minimum values were 78.6°F and 85.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Grosseto was 78.8°F. The maximum and minimum values were 76.4°F and 81.2°F respectively.

Best Time to Visit Grosseto
The most sunny months:
July 29 days
August 27 days
June 26 days
The most warm months:
August 90.8 °F
July 90.3 °F
June 83.7 °F
Warmest sea temperature:
August 81.1 °F
July 79.9 °F
September 77.8 °F
The most cold months:
January 52.6 °F
February 54.5 °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

Grosseto on the Weather Map

Italy Resorts:
NAME
Amalfi +50
Bari +52
Cagliari +50
Catania +54
Florence +44
Genoa +42
Naples +52
Palermo +54
Pisa +48
Reggio di Calabria +52
Rimini +46
Rome +48
Sicily +50
Tropea +50
Venice +42
24 Hours Weather Forecast
Grosseto
Local time: 02:04
29 jan, thursday
0300 50°F
NE
4 mph
0600 48°F
N
3 mph
0900 50°F
W
4 mph
1200 54°F
SE
12 mph
1500 52°F
SE
13 mph
1800 48°F
SE
8 mph
2100 50°F
SE
6 mph
30 jan, friday
0000 46°F
SW
4 mph