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Košice Weather in September
During September, Košice experiences pleasant daytime temperatures of 21°C (70°F) and cooler nights around 9°C (48°F). Expect quite a bit of rainfall. Around 72 mm (2.8 in) is typical.
Rainfall in Košice in September
Records from the past 30 years suggest around 10 days of rain, with 72 mm (2.8 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Košice in September
September tends to be one of the excellent months in Košice, with 21°C (70°F) in the afternoon and 9°C (48°F) overnight. The difference between afternoon and evening temperatures is usually noticeable. At 9°C (48°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Košice in September
Expect a lot of sunshine this month, with about 215 hours of sun. These sunny conditions add to the overall experience.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Košice.
Košice Temperature in September
Min Temperature
9°C (48°F)
Max Temperature
21°C (70°F)
Chance of Rain
33%
Precipitation
72 mm (2.8 in)
Rainy days
10 days
Humidity
53%
Sunshine
215 hours
Percentage Sunshine
Košice Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Košice - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Košice typically drop from around 22°C (72°F) at the start of September to approximately 18°C (64°F) by the end. Nights are cool, with lows typically ranging from 9°C (48°F) to 13°C (55°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Košice in September
Browse day-by-day weather records for Košice spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Košice historical weather extremes in September
Based on 50 years of weather observations in Košice between 1976 and 2026, these are the recorded extremes.
- Košice recorded its highest September temperature of 33°C (91°F) on September 1, 2015.
- On September 18, 1977, Košice saw its coldest September day with temperatures maxing out at 8°C (46°F).
- Nighttime temperatures dropped to -2°C (28°F) on September 29, 1977, marking the coldest September night on record.
Best Places in Slovakia in September
Find out more about the weather in Slovakia and which places have the best travel conditions in this month. See all of Slovakia in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Košice in September
For Košice in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Košice in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Barbeque8/10 -
Camping4/10 -
Outdoor sports9/10
Košice 3-Day Forecast
More climate data for Košice
Temperature Rainfall Sunshine Humidity
See the full Košice climate overview or explore weather in Slovakia.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bratislava
22°C (72°F) Košice21°C (70°F) Bešeňová
17°C (63°F) Demanovska Dolina17°C (63°F) Vysoké Tatry
17°C (63°F) Tatranská Lomnica17°C (63°F) Donovaly18°C (64°F) Liptovský Mikuláš17°C (63°F) Bucket list
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