The highest day temperature in May 2025 was 74°F. The lowest night temperature was 40°F. The average values for day and night temperatures during May were 66.3°F и 48.0°F respectivly.

The average sea surface temperature in May 2025 for Jermuk was 50.2°F. The maximum and minimum values were 43.8°F and 57.6°F respectively.

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

Precipitation total in May for Jermuk is 2.5 in. It makes may the most rainy month of the year.

The average wind speed in May is 4.6 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 Jermuk in May is 10.5 hours.