Water temperature in Lake Sevan in September

Is it warm enough to swim in Lake Sevan in September? Average water temperature in Lake Sevan in September is 18.5°C and therefore is not suitable for comfortable swimming. The warmest water in Lake Sevan in September is 22°C, and the coldest is 15.4°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Lake Sevan

Changes water temperature in Lake Sevan in September 2025, 2024

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

Sea temperature

Tides

Sunrise and Sunset

You can choose any other years:

Day	2025	2024	Min	Max
1 September	20.9°C	19.4°C	18.7°C	21.2°C
2 September	21.1°C	19.4°C	18.6°C	22°C
3 September	20.9°C	19.9°C	18.6°C	21.6°C
4 September	20.8°C	19.9°C	18.7°C	20.8°C
5 September	20.6°C	19.9°C	18.5°C	20.9°C
6 September	20.4°C	19.8°C	18.5°C	20.9°C
7 September	20.2°C	19.6°C	18.2°C	20.8°C
8 September	20.2°C	19°C	18°C	20.5°C
9 September	19.6°C	18.9°C	17.9°C	20.2°C
10 September	19.5°C	18.7°C	18°C	19.9°C
11 September	19.3°C	19.2°C	17.9°C	19.6°C
12 September	19.1°C	19.4°C	17.8°C	19.6°C
13 September	19°C	19.1°C	16.5°C	19.7°C
14 September	18.9°C	19°C	15.8°C	19.7°C
15 September	18.8°C	18.9°C	16.1°C	19.7°C

Day	2025	2024	Min	Max
16 September	18.8°C	18.6°C	15.9°C	19.6°C
17 September	18.6°C	18.5°C	15.9°C	19.6°C
18 September	18.5°C	18.5°C	16°C	19.5°C
19 September	18.5°C	18.4°C	16.2°C	19.4°C
20 September	18.9°C	18.3°C	16.3°C	19.2°C
21 September	18.7°C	18.1°C	17.5°C	19.1°C
22 September	18.4°C	17.9°C	16.3°C	18.9°C
23 September	18.2°C	17.7°C	16.4°C	18.9°C
24 September	17.7°C	17.5°C	15.9°C	18.7°C
25 September	17.4°C	17.4°C	15.4°C	19.2°C
26 September	17.2°C	17.2°C	16.4°C	18.8°C
27 September	17°C	17°C	15.9°C	18.7°C
28 September	17.5°C	18.1°C	15.9°C	18.4°C
29 September	17.8°C	17.9°C	15.8°C	18.2°C
30 September	17.6°C	17.7°C	15.6°C	18°C

Lake Sevan water temp chart in September

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Average water temperature in Lake Sevan in September over a decade

2016	2017	2018	2019	2020
18.2°C	19.3°C	18.5°C	17.1°C	18.7°C

2021	2022	2023	2024	2025
19.1°C	18.9°C	18.9°C	18.6°C	19°C

Lake Sevan 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 September. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Lake Van	21.6°C	18.5°C	24.8°C
Derbent	23.2°C	19.6°C	27.6°C
Dagestanskiye Ogni	23.2°C	19.6°C	27.5°C
Novokayakent	23.1°C	19.5°C	27.2°C
Izberbash	23.1°C	19.6°C	27.5°C
Chakvi	25.1°C	21.4°C	28.5°C
Makhinjauri	25.1°C	21.3°C	28.3°C
Kaspiysk	22.8°C	19.2°C	27.1°C
Lankaran	25.7°C	22°C	29.5°C
Neftcala	25°C	20.6°C	29.1°C

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Our report for Lake Sevan 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