September
Best time
18°C / 8°C
9 rain days
mild
- comfortable temperatures (avg high 18°C / 64°F)
- manageable rain (9 days)
Best time to visit Warsaw
Warsaw, Poland — ranked month by month from data: temperature, rainfall, snow, and peak hazard seasons. The standouts: September, August, May.
About Warsaw
Warsaw, officially the Capital City of Warsaw, is the capital and largest city of Poland. The metropolis stands on the River Vistula in east-central Poland. Its population is officially estimated at 1.86 million residents within a greater metropolitan area of 3.27 million residents, which makes Warsaw the 6th most-populous city in the European Union.
— condensed from Wikipedia
Best months to visit
August
Best time
24°C / 13°C
10 rain days
warm, rainy
- comfortable temperatures (avg high 24°C / 75°F)
- manageable rain (10 days)
May
Best time
20°C / 8°C
11 rain days
mild, rainy
- comfortable temperatures (avg high 20°C / 68°F)
June
Best time
23°C / 11°C
11 rain days
warm, rainy
- comfortable temperatures (avg high 23°C / 73°F)
July
Best time
24°C / 13°C
11 rain days
warm, rainy
- comfortable temperatures (avg high 24°C / 75°F)
OK — shoulder months
April
OK
14°C / 3°C
10 rain days
cool, rainy
- manageable rain (10 days)
October
OK
12°C / 4°C
9 rain days
cool
- manageable rain (9 days)
March
OK
7°C / -1°C
9 rain days
3 snow days
chilly, freezing nights, snowy
- manageable rain (9 days)
November
OK
5°C / 0°C
10 rain days
2 snow days
chilly, freezing nights, rainy
- manageable rain (10 days)
Months to skip
February
Skip
2°C / -4°C
8 rain days
6 snow days
cold, freezing nights, snowy
- freezing at night (-4°C)
- 6 snow days expected
December
Skip
1°C / -3°C
11 rain days
5 snow days
cold, freezing nights, rainy, snowy
- freezing at night (-3°C)
- 5 snow days expected
January
Skip
0°C / -5°C
9 rain days
7 snow days
cold, freezing nights, snowy
- freezing at night (-5°C)
- 7 snow days expected
How we ranked these
Each month is scored on temperature comfort (18–27°C avg high is the sweet spot), rainfall (more rain days = lower score), snow days, and peak hazard seasons (hurricanes, monsoons, etc.). Green-tier months are within ideal range with no major issues. Yellow are workable but with trade-offs. Red has at least one significant problem — extreme heat or cold, heavy rain, or peak storm season.