Warsaw (IN) Temperature by Month
Warsaw in Indiana, United States of America sees significant seasonal temperature differences, with daytime highs between 0°C (32°F) in January and 28°C (82°F) in July, averaging 15°C (59°F) annually. Explore the full monthly breakdown below.
Warsaw Monthly Temperatures
Depending on the time of the year, temperatures range from comfortable to very cold in Warsaw. At night, minimum temperatures range from 17°C (63°F) in July to -9°C (16°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Warsaw by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest. July, the warmest month, gets 309 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Warsaw vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
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Warsaw vs World: Temperature Compared
Warsaw's average annual maximum temperature is 15°C (59°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Warsaw's weather — including monthly rainfall, sunshine hours, and humidity — visit our Warsaw climate page.
