Olomouc Weather in September
September in Olomouc typically sees daytime highs of 20°C (68°F) and nighttime lows of 10°C (50°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Olomouc in September
Typically, you can expect about 11 days of rain this month, with 72 mm (2.8 in) on average. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Olomouc in September
September is one of the better months to visit Olomouc. Expect 20°C (68°F) during the day and 10°C (50°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights fall to 10°C (50°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Olomouc in September
The area experiences a moderate amount of sunshine, with approximately 177 hours of sunlight expected. This means a decent mix of sun and overcast.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July, August and September typically offer the best weather for Olomouc.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Czech Republic, check out our Olomouc's climate page.
Olomouc Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
20°C (68°F)
Chance of Rain
37%
Precipitation
72 mm (2.8 in)
Rainy days
11 days
Humidity
73% *
Sunshine
177 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Olomouc typically drop from around 20°C (68°F) at the start of September to approximately 16°C (61°F) by the end. Nights are cool, with lows typically ranging from 8°C (46°F) to 11°C (52°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 for Olomouc in September
Browse day-by-day weather records for Olomouc spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Olomouc historical weather extremes in September
Based on weather observations in Olomouc between 1976 and 2025, these are the recorded extremes during September.
- On September 3, 2024, temperatures climbed to 31°C (88°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 6°C (43°F), recorded on September 25, 2002.
- The coldest night in September in Olomouc was on September 19, 1990, with a minimum of 0°C (32°F).
Best Places in Czech Republic in September
Find out more about the weather in Czech Republic and which places have the best travel conditions in this month. See all of Czech Republic in September →
perfect weather
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What to Wear in Olomouc in September
For Olomouc 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. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Olomouc in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Czech Republic, check out our Olomouc's climate page.
Temperature Rainfall Sunshine Humidity
See the full Olomouc climate overview or explore weather in Czech Republic.
