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Trnava Weather in September
September in Trnava typically sees daytime highs of 23°C (73°F) and nighttime lows of 12°C (54°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Trnava in September
Rain is expected on roughly 10 days, totalling around 70 mm (2.8 in) 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 Trnava in September
September is a excellent month in Trnava, with 23°C (73°F) during the day and 12°C (54°F) at night. Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 12°C (54°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Trnava in September
The month enjoys around 205 hours of sunshine, creating mostly sunny days with good weather conditions.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Trnava.
Trnava Temperature in September
Min Temperature
12°C (54°F)
Max Temperature
23°C (73°F)
Chance of Rain
32%
Precipitation
70 mm (2.8 in)
Rainy days
10 days
Humidity
73% *
Sunshine
205 hours *
Percentage Sunshine
*
* Data from: Bratislava, Slovakia (34 KM, 21 Miles).
Trnava Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Trnava - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Trnava typically drop from around 23°C (73°F) at the start of September to approximately 19°C (66°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 Trnava in September
Browse day-by-day weather records for Trnava spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Trnava historical weather extremes in September
Our historical data for Trnava spans 1976 to 2026, revealing these weather extremes.
- The hottest September day on record in Trnava reached 34°C (93°F) (September 4, 2024).
- The lowest daytime temperature in September was 10°C (50°F), recorded on September 16, 2008.
- Trnava registered its coldest September night on September 29, 1977, with temperatures dropping to -1°C (30°F).
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 Trnava in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Trnava in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Cycling10/10 -
Walking10/10 -
Barbeque8/10 -
Camping8/10 -
Outdoor sports10/10
Trnava 3-Day Forecast
More climate data for Trnava
Temperature Rainfall Sunshine Humidity
See the full Trnava 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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