In Baku and on the Absheron Peninsula, the weather on May 21 is expected to be partly cloudy, occasionally overcast, but mostly dry.

Axar.az reports according to the National Hydrometeorological Service, the southwestern wind will be replaced during the day by a northwestern wind that may occasionally strengthen.

The temperature will be 16–18°C at night and 20–24°C during the day. Atmospheric pressure will rise from 757 mmHg to 763 mmHg. Relative humidity will be 70–75% at night and 50–60% during the day.

In the regions of Azerbaijan, the weather will mostly remain dry, but rain and thunderstorms are expected in some areas starting from midday. In certain places, there may be brief heavy downpours, hail, and wet snow in high mountain areas.

Occasional fog is also forecast. The moderate west wind may occasionally strengthen in some areas.

Temperatures will range between 15–19°C at night and 25–30°C during the day in the lowlands, and between 6–11°C at night and 15–20°C during the day in the mountains.