Water temperature in Grosseto in May

Is it warm enough to swim in Grosseto in May? Average water temperature in Grosseto in May is 18.4°C and therefore is not suitable for comfortable swimming. The warmest sea in Grosseto in May is 22.5°C, and the coldest is 15.9°C. Average high air temperature in Grosseto in May is 23°C, and average low temperature is 10°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Grosseto

Changes water temperature in Grosseto in May 2025, 2024

To get an accurate forecast for the water temperature in Grosseto for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Grosseto, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of May.

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 May	18.4°C	17°C	15.9°C	18.7°C
2 May	18.8°C	16.7°C	15.9°C	18.8°C
3 May	18.6°C	16.7°C	16.2°C	18.6°C
4 May	18.1°C	16.8°C	16.1°C	18.1°C
5 May	18.6°C	17.4°C	16.2°C	18.6°C
6 May	18.1°C	17.3°C	16.2°C	18.1°C
7 May	18.3°C	17°C	16.3°C	18.4°C
8 May	18.6°C	17.1°C	16.4°C	18.6°C
9 May	18.4°C	17.7°C	16.3°C	18.9°C
10 May	18.5°C	17.6°C	16.5°C	19.2°C
11 May	18.8°C	17.9°C	16.4°C	19.4°C
12 May	18.8°C	18°C	16.7°C	19.2°C
13 May	18.8°C	18.7°C	16.3°C	19.4°C
14 May	19.1°C	18.9°C	16.2°C	19.6°C
15 May	19.3°C	18.8°C	16°C	19.3°C

Day	2025	2024	Min	Max
16 May	18.8°C	19.3°C	16.2°C	19.4°C
17 May	18.5°C	19.7°C	16.4°C	19.7°C
18 May	18.8°C	20.4°C	16.6°C	20.4°C
19 May	18.9°C	19.6°C	16.5°C	19.9°C
20 May	19°C	19.6°C	16.5°C	20°C
21 May	19.1°C	20.3°C	16.6°C	20.3°C
22 May	19.2°C	20.5°C	16.9°C	20.9°C
23 May	19.2°C	20.1°C	17.2°C	21°C
24 May	19.1°C	20.3°C	17.9°C	21.8°C
25 May	19.1°C	20.7°C	17.6°C	21.9°C
26 May	19.7°C	20.3°C	17.3°C	21.9°C
27 May	19.7°C	20.4°C	17.6°C	21.8°C
28 May	19.4°C	20.8°C	17.5°C	22.3°C
29 May	19.7°C	20.8°C	17.5°C	22.2°C
30 May	20.3°C	20.7°C	17.3°C	21.9°C
31 May	20.3°C	20.8°C	17.6°C	22.5°C

Average water temperature in Grosseto in May over a decade

2016	2017	2018	2019	2020
17.9°C	18.3°C	19.2°C	16.8°C	18.7°C

2021	2022	2023	2024	2025
17.4°C	18.9°C	18.3°C	19°C	19°C

Grosseto sea state in May

Chart comparing the height of waves in Grosseto in May over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Weather and climate in Grosseto in May

This data display average monthly climate indicators in Grosseto in May based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

Average HIGH temperature23°C
Average LOW temperature10°C
Average rainfall days6 days
Average rainfall1.5''/38mm

Grosseto water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Temperature in neighboring cities

The nearest locations with the average water temperature in May. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Principina a Mare	18.4°C	15.9°C	22.5°C
Alberese	18.4°C	16°C	22.6°C
Riva del Sole	18.3°C	15.5°C	22.3°C
Rocchette	18.3°C	15.6°C	22.4°C
Punta Ala	18.3°C	15.7°C	22.5°C
Cala Violina	18.3°C	15.5°C	22.4°C
Talamone	18.5°C	15.9°C	22.6°C
Fonteblanda	18.5°C	15.9°C	22.6°C
Monte Argentario	18.5°C	15.9°C	22.5°C
Albinia	18.5°C	15.9°C	22.6°C

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Our report for Grosseto is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature