Grosseto — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Grosseto, trends, monthly ranges and the forecast for the coming days.

Current Water Temperature

26.8°C

Today

26.9°C

Yesterday

24.3°C

A Week Ago

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Water Temperature in Grosseto today is 26.8°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

✅ As of today, the minimum water temperature ranges from 79°F (26°C) to 82°F (28°C). This is very warm water, allowing for extended stays without any discomfort. Swimming in these conditions will be particularly enjoyable, making it the ideal temperature range for those who want to relax in the sea. Additionally, water in this temperature range is suitable for children and elderly people, as it is comfortable for prolonged stays. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Water Temperature Chart Over the Last 30 Days

From June 21 to July 22

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
JUL 14	24.3°C	21.8°C
JUL 15	26.6°C	21.8°C
JUL 16	26.7°C	21.8°C
JUL 17	26.7°C	21.8°C
JUL 18	26.9°C	21.8°C
JUL 19	26.9°C	21.8°C
JUL 20	26.9°C	21.8°C
JUL 21	27.0°C	21.8°C
JUL 22		21.8°C	26.6°C
JUL 23		21.8°C	26.3°C
JUL 24		21.8°C	26.1°C
JUL 25		21.8°C	25.8°C
JUL 26		21.8°C	25.6°C
JUL 27		21.8°C	25.3°C
JUL 28		21.8°C	25.1°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.

Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.

Monthly Water Temperature Range (Min, Max & Average)

Month	Min	Avg	Max
January	6°C	9°C	12°C
February	6°C	9°C	12°C
March	8°C	11°C	14°C
April	9°C	13°C	17°C
May	11°C	16°C	21°C
June	14°C	19°C	25°C
July	17°C	22°C	27°C
August	17°C	21°C	26°C
September	14°C	18°C	23°C
October	12°C	16°C	18°C
November	9°C	12°C	15°C
December	6°C	9°C	12°C

Grosseto: Weather Forecast

July 22

° / °

partly cloudy

rain: 3% | wind:

July 23

° / °

partly cloudy

rain: 3% | wind:

July 24

° / °

partly cloudy

rain: 0% | wind:

July 25

° / °

overcast

rain: 28% | wind:

July 26

° / °

slight rain showers

rain: 60% | wind:

Location & Local Information

Around Grosseto and the Maremma hinterland, lakes and coastal lagoons tend to be shallower and more sheltered than open sea, so their temperatures follow a seasonal pattern: in winter surface water typically sits around 6–10 °C (43–50 °F), spring sees warming to roughly 10–18 °C (50–64 °F), and summer often brings the warmest conditions, about 20–26 °C (68–79 °F) in deeper inland lakes and 22–28 °C (72–82 °F) in shallow coastal ponds and lagoons. Autumn temperatures generally fall back into the 12–18 °C (54–64 °F) range. These figures are approximate and vary with depth, shading, freshwater inflow and wind; shallow, sheltered bodies warm fastest and cool fastest.

Swimming is commonly possible in many of the lakes and lagoons around Grosseto, but access and suitability depend on local regulations, water quality and safety. Some sites are popular for informal bathing in summer when temperatures are most comfortable, while other areas are protected reserves or privately owned and may prohibit swimming to protect wildlife or for safety reasons. Water clarity and currents are usually milder than the sea, but swimmers should heed local signage, seasonal advisories and lifeguard presence where available before entering the water.

Frequently Asked Questions

What is the current water temperature in Grosseto?

Water Temperature in Grosseto today is 26.8°C.

What is the water temperature in Grosseto during the summer months?

The water temperature in Grosseto in summer fluctuates in the range of 14°C - 27°C.

Is it possible to swim in Grosseto (Italy) in Ombrone and what are the possibilities for this?

Swimming directly in the Ombrone within Grosseto is generally limited due to variable water quality, currents and seasonal flows, though locals sometimes bathe in calmer stretches near the river mouth or upstream sections, while most visitors seeking safe, monitored swimming opt for the nearby coastal beaches and lidos at Marina di Grosseto and Principina a Mare.