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Climate - Grosseto (Italy)


Average weather, temperature, rainfall, sunshine hours

Flag - Italy

Grosseto, where it's located




The climate of Grosseto is Mediterranean, with mild, relatively rainy winters and hot, sunny summers.
The city is located 10 kilometers (6 miles) away from the coast of the Tyrrhenian Sea, in the Tuscany region, in the area called Maremma, and has a climate similar to that of Rome, although a little more windy and a little less rainy.
The average temperature of the coldest month (January) is of 7.4 °C (45 °F), that of the warmest month (August) is of 24.5 °C (76 °F). Here are the average temperatures.
Grosseto - Average temperatures
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Min (°C)3357111417181512849.8
Max (°C)12131619242831312722171321.1
Min (°F)37374145525763645954463949.6
Max (°F)54556166758288888172635570

Precipitation amounts to 655 millimeters (25.8 inches) per year: so, it is at an intermediate level. It ranges from 15 mm (0.6 in) in the driest month (July) to 100 mm (3.9 in) in the wettest (November). Here is the average precipitation.
Grosseto - Average precipitation
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Prec.(mm)5050505035301520907510090655
Prec.(in)22221.41.20.60.83.533.93.525.8
Days65664212467857

Winter, from December to February, is mild.
There is a moderate amount of sunny days, which can be mild, with highs around 12/15 °C (54/59 °F), but it often gets cold at night, with lows around freezing (0 °C or 32 °F) or slightly above. Cloudy periods, accompanied by wind and rain, are milder, especially at night, both because of the southern wind, which usually blows in periods of bad weather, and of cloud cover, which is able to prevent nocturnal cooling.
The wind from the north, the tramontana, brings cold and sunny days, with highs below 10 °C (50 °F) and possible light frosts at night. Sometimes, there can be particularly cold days, in which the maximum remains around 3/4 °C (37/39 °F) despite the sun.
On the coldest nights of the year, the temperature typically drops to -2/-4 °C (25/28 °F), but can sometimes drop lower.
The temperature dropped to -9.5 °C (15 °F) in February 1956, to -8.5 °C (16.5 °F) in January 1968, to -13 °C (8.5 °F) in January 1985, to -9.5 °C (15 °F) in January 1987, to -13 °C (8.5 °F) in February 1991, to -9.5 °C (15 °F) in December 1996, and to -9 °C (16 °F) in late February 2018.
Snow in Grosseto is a very rare phenomenon because, as we mentioned, cold periods are usually sunny. Sometimes, however, quite heavy snowfalls may occur, for example, in December 1996, 30 cm (12 in) of snow fell.

Summer, from June to August, is hot and sunny, with rare thunderstorms. During the day it is hot, although in the afternoon the sea breeze blows.
Sometimes, however, there can be particularly hot and muggy periods. On the hottest days of the year, the temperature exceeds 35 °C (95 °F).
The highest record, 40 °C (104 °F), was recorded in the months of August of 1958, 2003 and 2017. On other occasions, the temperature reached 39 °C (102 °F) in the months of August 1974, 1981 and 1999, in June 2003, and in July 2004 and 2018.

Grosseto

On average, there are around 2,480 sunshine hours per year. Here are the average sunshine hours per day.
Grosseto - Sunshine
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Hours456781011108644

The sea temperature in Marina di Grosseto ranges between 14 °C (57 °F) and 25 °C (77 °F). The sea is warm enough for swimming from July to September. Here are the average sea temperatures.
Grosseto - Sea temperature
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Temp (°C)141414151822242523211816
Temp (°F)575757596472757773706461

Best Time


The best times to visit Grosseto are spring and autumn, ie from mid-April to mid-June and from September to early October. In June, the weather is often nice, but it can sometimes be hot, especially in the second half of the month.
The best months to go to the beach are July and August. In June, the sea is still a little cool.



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