Measurements:
°C
°F
Grosseto
52°F
SW 5 mph
Feels like: 50°F
Precip: 0%
World Resorts Italy Grosseto Weather

Grosseto Sea Water Temperature

Current Sea Water Temperature:
+66.0°F
Maximum Sea Water Temperature in May: 74.0°F
Minimum Sea Water Temperature in May: 61.4°F
Average water temperature in May: 66.4°F

Sea Water Temperature for the Last 10 Days:

May 16 66.0°F May 11 65.8°F
May 15 66.4°F May 10 66.2°F
May 14 66.8°F May 09 65.4°F
May 13 66.8°F May 08 65.0°F
May 12 66.4°F May 07 65.2°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 54.7 °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

Grosseto on the Weather Map

Italy Resorts:
NAME
Amalfi +56
Bari +60
Bibione +50
Cagliari +52
Catania +62
Florence +46
Genoa +48
Lido di Jesolo +58
Naples +62
Palermo +56
Rimini +52
Rome +50
Sicily +48
Tropea +58
Venice +58
24 Hours Weather Forecast
Grosseto
Local time: 22:42
17 may, sunday
0000 52°F
SW
5 mph
0300 50°F
SW
4 mph
0600 48°F
SW
6 mph
0900 60°F
SW
3 mph
1200 66°F
NE
6 mph
1500 66°F
NE
11 mph
1800 66°F
NE
6 mph
2100 58°F
NE
2 mph