On May 31, weather in Baku and the Absheron Peninsula is expected to be partly cloudy, occasionally overcast, and mainly dry.

Axar.az reports, citing the National Hydrometeorological Service, that light intermittent rain is possible in some suburban areas during the night.

A moderate southwest wind will shift to a northwest wind in the evening. Temperatures will range from 14–16°C at night to 22–27°C during the day. Atmospheric pressure will decrease from 760 mm to 756 mm of mercury. Relative humidity will be 60–70% at night and 45–55% during the day.

In the regions of Azerbaijan, short-term rainfall, thunderstorms, and possible hail are expected mainly in some mountainous and foothill areas. Fog is likely in some places during the night and morning. Westerly winds will occasionally strengthen in certain areas.

Temperatures are expected to be 14–17°C at night and 25–29°C during the day, while in mountainous areas temperatures will range from 7–12°C at night and 15–20°C during the day, reaching up to 25°C in some locations.