It will be mostly sunny before noon. Cumulus clouds will develop around and after noon, but only in isolated places, mainly in mountainous areas, will there be short-term rain.
The wind will be weak from the north-northwest, in Eastern Bulgaria to moderate from the north-northeast. Maximum temperatures in most places will be between 22° and 27°, in Sofia – around 24°.
Over the Black Sea Coast before noon it will be mostly sunny. Around and after noon cumulus clouds will develop, but there will be no precipitation. There will be a moderate wind from the north-northeast, after noon a weak one from the east-southeast. Maximum temperatures will be between 21°C and 23°C. Sea water temperature is 16°C-17°C. Sea swell will be around 2 points.
Over the mountains before noon it will be mostly sunny. Around and after noon cumulus clouds will develop, but only in places, mainly in the Stara Planina and the Rila-Rhodope massif, there will be short-term rain. Moderate and strong winds will blow from the north-northeast. The maximum temperature at an altitude of 1200 meters will be around 15°, at 2000 meters - around 8°.
On Tuesday and Wednesday sunny weather will prevail with temporary increases in cloudiness over the eastern and mountainous regions, but only in isolated places will it rain and thunder. A light to moderate wind will blow from the north-northwest. Maximum temperatures will be between 24° and 29°.
On Wednesday later during the day and at night against Thursday, cool air will invade with a moderate northwest wind. Cumulonimbus clouds will develop along the line of the passing cold atmospheric front and in many places in Northern and Eastern Bulgaria there will be short-term precipitation, accompanied by thunderstorms; there will also be conditions for hail.