Water temperature in Gragnano in May

Is it warm enough to swim in Gragnano in May? Average water temperature in Gragnano in May is 19.1°C and therefore is not suitable for comfortable swimming. The warmest sea in Gragnano in May is 23.3°C, and the coldest is 16.3°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Gragnano

Changes water temperature in Gragnano in May 2025, 2024

To get an accurate forecast for the water temperature in Gragnano for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Gragnano, 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	19°C	17.6°C	16.3°C	19.2°C
2 May	19.4°C	17.6°C	16.5°C	19.4°C
3 May	19.2°C	17.5°C	16.6°C	19.2°C
4 May	19°C	17.4°C	16.6°C	19°C
5 May	19.2°C	17.5°C	16.5°C	19.2°C
6 May	19.4°C	17.8°C	16.4°C	19.4°C
7 May	19.6°C	18.2°C	16.3°C	19.6°C
8 May	19.3°C	18.1°C	16.4°C	19.7°C
9 May	19.3°C	18.1°C	16.6°C	19.7°C
10 May	19.5°C	18.8°C	17°C	20°C
11 May	19.5°C	19.2°C	17.5°C	19.9°C
12 May	20.1°C	19.3°C	17.1°C	20.1°C
13 May	19.8°C	18.9°C	17.4°C	20.4°C
14 May	19.7°C	19.7°C	17.6°C	20.9°C
15 May	19.8°C	19.5°C	17.7°C	20.8°C

Day	2025	2024	Min	Max
16 May	19.8°C	20.3°C	16.8°C	20.6°C
17 May	19.5°C	20.9°C	17.1°C	20.9°C
18 May	19.6°C	20.6°C	17.3°C	20.6°C
19 May	19.9°C	20.1°C	17.2°C	20.2°C
20 May	19.7°C	20.6°C	17.5°C	20.7°C
21 May	19.8°C	20.4°C	17.4°C	20.9°C
22 May	20.3°C	20.6°C	18°C	21.3°C
23 May	19.8°C	21°C	18.2°C	21.4°C
24 May	20.2°C	20.8°C	18.2°C	22.2°C
25 May	20.1°C	21.1°C	18.5°C	22.7°C
26 May	20.2°C	21.3°C	18.3°C	23.3°C
27 May	20.3°C	20.8°C	18.4°C	23.2°C
28 May	20.7°C	21.7°C	18°C	22.6°C
29 May	20.6°C	21.6°C	18.2°C	22.3°C
30 May	20.7°C	21.5°C	18.3°C	22.5°C
31 May	21.2°C	21.6°C	18.1°C	22.7°C

Average water temperature in Gragnano in May over a decade

2016	2017	2018	2019	2020
18.5°C	19.2°C	19.9°C	17.4°C	19.1°C

2021	2022	2023	2024	2025
18.7°C	19.3°C	18.8°C	19.7°C	19.8°C

Gragnano sea state in May

Chart comparing the height of waves in Gragnano 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.

Gragnano 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
Marina di Varcaturo	19.1°C	16.4°C	23.3°C
Posillipo	19.1°C	16.3°C	23.3°C
Naples	19.1°C	16.4°C	23.3°C
Sorrento	19°C	16.3°C	23.2°C
Portici	19.1°C	16.4°C	23.3°C
Torre del Greco	19.1°C	16.4°C	23.3°C
Ercolano	19.1°C	16.4°C	23.3°C
Blue Grotto	19°C	16.2°C	23.1°C
Mondragone	19.1°C	16.3°C	23.5°C
Capri	19°C	16.3°C	23.1°C

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Our report for Gragnano 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