Warsaw weather in August
In August, Warsaw has an average high of 26 °C78 °F and an average low of 14 °C58 °F, with about 62 mm2.4 in of precipitation. It is the 2nd warmest month of the year and ranks 4th for precipitation.
How August compares with other months
Compared with July, August is 0.6 °C1.1 °F cooler on average and drier by 14 mm0.5 in. Compared with September, August is 5.3 °C9.6 °F warmer on average and wetter by 10 mm0.4 in. Daylight lasts about 14.7 hours around the middle of the month. Average relative humidity is 66% and the average cloud amount 60%.
Is August a good time to visit Warsaw?
Yes — August is one of the most comfortable months to visit Warsaw by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in August
For Warsaw in August, pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
August in nearby places
Other months in Warsaw
- January−1 °C30 °F / −7 °C20 °F
- February1 °C34 °F / −6 °C22 °F
- March7 °C45 °F / −2 °C28 °F
- April14 °C58 °F / 3 °C38 °F
- May20 °C68 °F / 9 °C48 °F
- June24 °C74 °F / 13 °C55 °F
- July26 °C79 °F / 15 °C60 °F
- August26 °C78 °F / 14 °C58 °F
- September20 °C68 °F / 9 °C49 °F
- October13 °C55 °F / 4 °C39 °F
- November6 °C44 °F / 1 °C33 °F
- December1 °C34 °F / −4 °C25 °F
Frequently asked questions
How warm is Warsaw in August?
In August the average high in Warsaw is 26 °C (78 °F) and the average low is 14 °C (58 °F).
Does it rain a lot in Warsaw in August?
On average about 62 mm (2.4 in) of precipitation falls in August; it ranks 4th of the 12 months.
Is August the warmest month in Warsaw?
No. The warmest month in Warsaw is July, with an average high of 26 °C (79 °F). The coldest month is January, with an average low of -7 °C (20 °F).
How long is the day in Warsaw in August?
In the middle of August the day in Warsaw lasts about 14.7 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Warsaw in August?
The average relative humidity in August is about 66%. This is a long-term average for the whole day.
How cloudy is Warsaw in August?
On average about 60% of the sky is covered by cloud in August. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.