Lake Sevan Sea Temperature in September

Average sea temperature for Lake Sevan, Armenia across September, based on 10 years of daily readings.

Average

22.78° C

High

26.82° C

Low

19.87° C

Water at this temperature is very pleasant to swim in. If you tend to wear a wetsuit when swimming, you might consider removing it now to avoid the body overheating.

September is the 3rd warmest of 12 months at Lake Sevan. On average the water sits 8.2° than the year-round mean of 14.6° C.

Compared to August, September is 2.8° cooler than (25.54° C in August). By October the water is usually 18.14° C.

Lake Sevan Day-by-Day Water Temperature in September

10-year low, average and high

18.5° C

20.9° C

23.3° C

25.6° C

28.0° C

1

5

10

15

20

25

30

Day-by-day low and high band with the 10-year daily average through September. Range Average

Each vertical bar above is one day of September. The shaded band covers the range the water has reached on that day across the last 10 years — the lowest reading at the bottom, the highest at the top. The line running through the bars is the daily average over those 10 years, so you can see the typical shape of the month at Lake Sevan.

A narrow band means the temperature on that day has stayed close to the average year on year. A taller band means it has swung more, often because of changeable weather around that time of year. Hovering a day pulls up its low, average, and high.

September Water Temperature Table for Lake Sevan

10-year daily averages

Day	Average	Low	High
September 1	24.86° C	23.48° C	26.82° C
September 2	24.71° C	23.2° C	26.67° C
September 3	24.6° C	23.03° C	26.46° C
September 4	24.61° C	22.76° C	26.55° C
September 5	24.54° C	22.51° C	26.55° C
September 6	24.44° C	21.81° C	26.38° C
September 7	24.2° C	21.81° C	26.01° C
September 8	24.12° C	21.91° C	26.01° C
September 9	23.74° C	21.94° C	24.53° C
September 10	23.37° C	21.93° C	24.25° C
September 11	23.2° C	21.9° C	24.1° C
September 12	23.17° C	22.11° C	24.04° C
September 13	23.08° C	21.74° C	23.99° C
September 14	23.06° C	21.64° C	23.92° C
September 15	22.95° C	21.58° C	24.15° C
September 16	22.8° C	21.51° C	24.34° C
September 17	22.61° C	21.14° C	24.16° C
September 18	22.3° C	20.66° C	23.77° C
September 19	22.14° C	20.62° C	24° C
September 20	22° C	20.55° C	24.12° C
September 21	21.9° C	20.46° C	24.09° C
September 22	21.63° C	20.48° C	23.54° C
September 23	21.52° C	20.57° C	22.63° C
September 24	21.48° C	20.59° C	22.44° C
September 25	21.53° C	20.53° C	22.57° C
September 26	21.44° C	20.64° C	22.61° C
September 27	21.15° C	20.3° C	22.4° C
September 28	20.93° C	20.12° C	22.06° C
September 29	20.74° C	20.24° C	21.77° C
September 30	20.68° C	19.87° C	21.87° C

Where September Sits in the Year

September highlighted

-3.5° C

5.5° C

14.5° C

23.5° C

32.5° C

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

5.63° C

4.27° C

5.59° C

9.72° C

15.3° C

21.75° C

25.02° C

25.54° C

22.78° C

18.14° C

13.42° C

8.09° C

10-year monthly history for Lake Sevan. Bars span historical low to high; the line marks the monthly average. Range Average

January → February → March → April → May → June → July → August → September → October → November → December →

Lake Sevan Location

40.3450, 45.3352

Open this location on OpenStreetMap →

40.34500, 45.33519 View on OpenStreetMap →

Lake Sevan sits at 40.3450°N, 45.3352°E, on the coast of Armenia. The marker on the map shows the spot the readings on this page come from. It usually sits a short distance from the town centre, out on the open water itself, so the numbers stay tied to the coast rather than a generic point inland.