Rain and isolated thunderstorms are expected today (17 June 2026) across several parts of Greece, according to the Hellenic National Meteorological Service (EMY). Affected areas include Attica, Thessaloniki, the Ionian Islands, and parts of mainland Greece. Temperatures will see a slight decline compared to recent days.
Regional Forecast
In the Ionian Islands, western, central, and northern mainland regions, cloud cover will increase temporarily, bringing scattered showers or downpours—and isolated thunderstorms, especially over mountainous terrain. Elsewhere, skies will generally remain clear, though increased cloudiness is expected during midday and afternoon hours across remaining mainland areas, with localized rain or brief heavy showers. Isolated thunderstorms are possible, mainly over higher elevations. Conditions are expected to improve by evening.
Wind and Temperature
Winds will blow from northerly directions at 3–5 Beaufort, reaching up to 6 Beaufort locally in the Aegean Sea. Temperatures will drop slightly, peaking between 30°C and 32°C in most areas—and locally reaching 33°C to 34°C inland.
Attica
The weather will be mostly sunny, with temporary cloud buildup during the afternoon, leading to isolated showers or brief heavy rain—particularly over mountainous zones—and possibly isolated thunderstorms. Winds will come from the north at 3–4 Beaufort, increasing to 5 Beaufort locally in western areas. Temperatures will range from 21°C to 32°C.
Thessaloniki
Skies will start partly cloudy but clouds will quickly thicken, resulting in scattered showers or brief heavy rain—and isolated thunderstorms. Winds will be northerly at 3–4 Beaufort, shifting briefly to southerly at similar intensity around midday. Temperatures will range from 18°C to 31°C.
Macedonia & Thrace
Scattered clouds will increase temporarily, especially in Macedonia, bringing isolated showers or brief heavy rain and thunderstorms. A gradual improvement is expected from evening onward. Winds will be variable at 2–4 Beaufort; in eastern Macedonia and Thrace, northerlies will prevail at 3–5 Beaufort. Temperatures will range from 18°C to 32°C—with local peaks of 33°C. In western Macedonia, readings will be 2–4°C cooler.
Ionian Islands, Epirus, Western Sterea, Western Peloponnese
Cloud cover will increase first over the Ionian Islands and gradually spread eastward, producing scattered showers or brief heavy rain—and isolated thunderstorms, mainly over mountainous inland areas. Improvement is expected by evening. Winds will blow from westerly directions at 3–4 Beaufort, reaching up to 5 Beaufort locally. Temperatures will range from 17°C to 30°C—and up to 31°C inland. In central Epirus, temperatures will be 2–3°C lower.
Thessaly, Eastern Sterea, Evia, Eastern Peloponnese
Skies will remain mostly clear, with occasional cloud build-up—especially during afternoon hours—bringing isolated showers or brief heavy rain. Inland mountainous areas may experience isolated thunderstorms. Winds will shift from variable (3 Beaufort) to northerly at 3–5 Beaufort. Temperatures will range from 18°C to 31°C—and locally reach 32°C to 33°C inland.
Cyclades & Crete
Generally clear skies are forecast. Winds will blow from westerly directions at 3–5 Beaufort; in the Cyclades, northerlies will dominate, reaching up to 6 Beaufort locally. Temperatures will range from 20°C to 28°C—and up to 30°C in parts of Crete.