Water temperature in Nyon in July

Is it warm enough to swim in Nyon in July? Average water temperature in Nyon in July is 21.4°C and therefore suitable for comfortable swimming. The warmest water in Nyon in July is 24.8°C, and the coldest is 17.3°C. Average high air temperature in Nyon in July is 25°C, and average low temperature is 14°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Nyon

Changes water temperature in Nyon in July 2025, 2024

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

Sea temperature

Tides

Sunrise and Sunset

You can choose any other years:

Day	2025	2024	Min	Max
1 July	24.3°C	20.2°C	17.3°C	24.3°C
2 July	24°C	20.1°C	17.6°C	24°C
3 July	23.9°C	20°C	17.5°C	23.9°C
4 July	24.6°C	19.9°C	18°C	24.6°C
5 July	24.7°C	19.5°C	18.3°C	24.7°C
6 July	24.6°C	19.6°C	18.8°C	24.6°C
7 July	24.2°C	18.3°C	18.3°C	24.2°C
8 July	23.3°C	20°C	19.5°C	23.3°C
9 July	22.7°C	20°C	19.6°C	23°C
10 July	21°C	21°C	19.5°C	23.5°C
11 July	21.1°C	20.9°C	19.7°C	23.2°C
12 July	21.5°C	20.9°C	19.7°C	23°C
13 July	21.4°C	19.8°C	19.7°C	23.1°C
14 July	22°C	19.9°C	19.7°C	23.2°C
15 July	21.9°C	21.1°C	19.7°C	23.7°C

Day	2025	2024	Min	Max
16 July	21.8°C	20.4°C	19.7°C	23.4°C
17 July	22.3°C	21.1°C	19.3°C	22.9°C
18 July	22.5°C	21.9°C	19.4°C	23.6°C
19 July	22.4°C	22.2°C	19.2°C	23.8°C
20 July	22.8°C	22°C	19.6°C	23.1°C
21 July	22.5°C	22°C	19.5°C	24.4°C
22 July	21.5°C	22.6°C	19°C	24.1°C
23 July	21.6°C	22.6°C	18.8°C	24.4°C
24 July	21.3°C	22.8°C	19.1°C	24.8°C
25 July	21°C	23.6°C	19.7°C	24.5°C
26 July	21.1°C	23.5°C	20.1°C	24°C
27 July	21.1°C	23.9°C	20.1°C	24.1°C
28 July	21°C	23.6°C	20.2°C	24.1°C
29 July	20.7°C	24.1°C	20°C	24.1°C
30 July	20.7°C	24.3°C	19.9°C	24.3°C
31 July	20.6°C	23.9°C	20°C	24.3°C

Average water temperature in Nyon in July over a decade

2016	2017	2018	2019	2020
20.8°C	20.4°C	21.8°C	22.6°C	21.7°C

2021	2022	2023	2024	2025
20.4°C	23°C	22.1°C	21.5°C	22.3°C

Weather and climate in Nyon in July

This data display average monthly climate indicators in Nyon in July 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 temperature25°C
Average LOW temperature14°C
Average humidity
65
Average rainfall days9 days
Average rainfall3.1''/79mm
Average sunshine8.4h

Nyon 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 July. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Messery	21.4°C	17.3°C	24.8°C
Chens sur Leman	21.1°C	17°C	25°C
Rolle	21.8°C	18°C	25°C
Nernier	21.8°C	18°C	25°C
Yvoire	21.8°C	18°C	25°C
Versoix	20.9°C	16.8°C	24.9°C
Hermance	20.9°C	16.8°C	24.9°C
Coppet	20.9°C	16.8°C	24.9°C
Excenevex	21.8°C	18.1°C	25°C
Anthy-sur-Leman	21.8°C	18.1°C	25°C

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Our report for Nyon 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