The highest day temperature in September 2026 was 89°F. The lowest night temperature was 55°F. The average values for day and night temperatures during September were 83.4°F и 64.6°F respectivly.

The average sea surface temperature in September 2026 for Yerevan was 68.2°F. The maximum and minimum values were 66.0°F and 70.2°F respectively.

Most of the days in September are sunny but you can also expect cloudy and gloomy days.

Precipitation total in September for Yerevan is 0.5 in.

The average wind speed in September is 4.5 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Yerevan in September is 11.0 hours.