See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:46
Sunrise
19:07
Sunset
Moon
Waxing Crescent
11:55
Moonrise
20:23
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
Upgrade to access real-time air quality data for Prague.
Resources
UV Index
Humidity
Weather in Prague today, September 15, 2026
Misty spells are likely in Prague on September 15, 2026, especially during quieter hours. The day can open dull before any clearer intervals arrive. The morning sky stays heavily clouded, with cover near 74% around 11:00. Grey conditions set the early tone before any later change.
The day peaks near 23°C and cools toward 12°C. The air stays humid, with relative humidity between 50% and 94% and the peak around 09:00. Airflow remains manageable, reaching about 2.3 km/h around 15:00.
Afternoon skies stay clogged, peaking close to 71% near 23:00. The grey theme continues rather than clearing out. Visibility holds near 34.3 km, though it can fall to 0.2 km. The sun rises at 06:46 and sets at 19:07, for a total of 12 hours 21 minutes of sunlight today.
The practical takeaway for Prague on September 15, 2026 is reduced clarity at times, so plan journeys with care near 23°C.
Frequently asked questions about weather in Prague
How warm does it get in Prague?
The warmest month in Prague is August, with average high temperatures of 25°C. The average temperature during this period is around 20°C.
How cold does it get in Prague?
The coldest month in Prague is January, with average low temperatures of -2°C. The average temperature during this period is around 1°C.
What is the wettest time of year in Prague?
The wettest month in Prague is June, with an average of 96mm of precipitation.
What is the driest time of year in Prague?
The driest month in Prague is March, with an average of 39mm of precipitation.
