Czech Republic faces final days of summer heat before a sharp cold front arrives
The Czech Republic will experience lingering warm weather until Wednesday, after which a strong cold front is expected to move in from the west.
According to the Czech Hydrometeorological Institute, the country will remain under the influence of a high-pressure ridge that draws warm air from the south, keeping skies mostly clear until Wednesday. Morning temperatures are expected to fall to between 5 and 10 °C, with valleys possibly seeing near-freezing lows, while afternoons will warm to 18-24 °C. The pattern will break on Thursday when a strong cold front arrives from the west, increasing cloudiness and bringing showers and rain.
Temperatures will diverge sharply, with the western and north-western Czech lands cooling to about 14 °C, while eastern and southeastern Moravia may still reach 23 °C. After the front passes, the weekend will be marked by unsettled weather, frequent clouds and local downpours, and the Krkonoše mountain ridges could see rain mixed with snow on Friday. Daily highs will settle around 10-15 °C on Friday, with slightly higher values over the weekend.
Why it matters
The forecast signals a rapid shift from warm summer conditions to cooler, wetter weather, affecting daily life and travel across the Czech Republic.
How this story developed
- Aug 31 UN warns that a record-breaking El Niño could trigger worldwide extreme weather
- Sep 3 UN says the El Niño is expected to remain in place until February 2027.
- Sep 5 Czech forecasts include a possible rapid temperature rise to around 30 °C early next week.
- Sep 7 Britain announced cuts of more than 80 % to bilateral aid in eight African states.
- Sep 7 UK models show a higher likelihood of stormier, wetter conditions during autumn and winter.
- Sep 9 A brief spell of 27‑28 °C heat is expected in southeast England on Sunday.
- Sep 9 The contiguous United States experienced its warmest June-August period on record, with an average temperature of 74.4°F, according to NOAA.
- Sep 10 August 2026 set a new all‑time monthly heat record and drought drove the two biggest western water reservoirs to their lowest historic levels.
- Sep 13 Forecasts now show showers spreading across the west and east of the UK by Tuesday, following the brief heat spike.
- Sep 20 New forecasts show London reaching about 24 °C by Monday and showers expected in Manchester from Thursday.
- Sep 21 The system, now classified as a hurricane, is positioned about 270 miles south-southeast of Manzanillo and 190 miles south-southwest of Zihuatanejo, with sustained winds of 80 mph. Forecasts suggest it could reach major-hurricane strength by Tuesday and maintain a trajectory offshore while dumping 4-8 inches of rain across Guerrero and Michoacan through Thursday. Tourist hubs such as Acapulco, Puerto Vallarta and Guadalajara may experience rough seas and gusty conditions, and the moisture could trigger flash-flood threats in the U.S. Southwest later in the week.
- Sep 23 Polo intensified to Category 5 with maximum sustained winds of 175 mph.
- Sep 24 Authorities opened shelters and deployed thousands of military and Red Cross personnel to assist affected communities.
- Sep 29 Probability estimates now place a greater than 90% chance that the El Niño will remain very strong through February 2027.
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